/* SPDX-License-Identifier: LicenseRef-CiteProof-SaaS-Proprietary */
/*
 * CiteProof Landing Page Stylesheet
 * Vercel-inspired design system adhering to DESIGN.md and tokens.css.
 * Ink is the brand. Borderless, tight tracking, pill buttons, soft blurred hero mesh.
 * Polished with motion, breathing room, depth, and tasteful color washes.
 */

/* ==========================================================================
   1. BASE RESET & ACCESSIBILITY
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--cp-canvas);
  color: var(--cp-body);
}

body {
  background-color: var(--cp-canvas);
  color: var(--cp-body);
  font-family: var(--cp-font-sans);
  font-size: 16px;
  line-height: 24px;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Section anchor offset so targets don't hide under the 64px fixed bar */
[id] {
  scroll-margin-top: 80px;
}

/* Thin fixed scroll-progress bar (2px) at the top of the viewport */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cp-accent-blue), var(--cp-accent-red));
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left;
  z-index: 1001;
  pointer-events: none;
  will-change: transform;
}

/* Fixed full-page subtle radial wash that transitions color as sections enter view */
.page-wash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.08;
  transition: background 800ms var(--cp-ease);
}

html.light-mode .page-wash {
  opacity: 0.05;
}

body[data-wash="blue"] .page-wash {
  background: radial-gradient(circle 850px at 50% 35%, var(--cp-accent-blue), transparent 70%);
}

body[data-wash="purple"] .page-wash {
  background: radial-gradient(circle 850px at 50% 35%, var(--cp-accent-blue), transparent 70%);
}

body[data-wash="teal"] .page-wash {
  background: radial-gradient(circle 850px at 50% 35%, var(--cp-accent-blue), transparent 70%);
}

body[data-wash="pink"] .page-wash {
  background: radial-gradient(circle 850px at 50% 35%, var(--cp-accent-red), transparent 70%);
}

body[data-wash="amber"] .page-wash {
  background: radial-gradient(circle 850px at 50% 35%, var(--cp-accent-red), transparent 70%);
}

/* ==========================================================================
   2. SHADCN/UI NEW-YORK COMPONENTS PORTED TO PLAIN CSS
   shadcn/ui new-york components ported to plain CSS (MIT, https://ui.shadcn.com)
   ========================================================================== */

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--cp-space-2);
  white-space: nowrap;
  border-radius: var(--cp-radius-pill);
  font-family: var(--cp-font-sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  height: 40px;
  padding: 0 var(--cp-space-4);
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: background-color var(--cp-dur) var(--cp-ease),
              color var(--cp-dur) var(--cp-ease),
              border-color var(--cp-dur) var(--cp-ease),
              transform var(--cp-dur) var(--cp-ease),
              opacity var(--cp-dur) var(--cp-ease),
              box-shadow var(--cp-dur) var(--cp-ease);
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

/* Button Variants */
.btn-default {
  background-color: var(--primary);
  color: var(--primary-foreground);
  position: relative;
  overflow: hidden;
}

.btn-default:hover {
  opacity: 0.92;
}

/* Soft hover sheen sweep across ink button */
.btn-default::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transform: skewX(-20deg);
  transition: transform 600ms var(--cp-ease);
  pointer-events: none;
}

html.light-mode .btn-default::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
}

.btn-default:hover::after {
  transform: translateX(360%) skewX(-20deg);
}

/* Hero primary CTA: solid ink at rest; on hover or keyboard focus a gradient layer fades in and slowly shifts */
.btn-hero-cta {
  isolation: isolate;
}

.btn-hero-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(110deg, #0062d6, #0070f3, #c50000);
  background-size: 200% 200%;
  background-position: 0% 50%;
  opacity: 0;
  transition: opacity var(--cp-dur) var(--cp-ease);
  pointer-events: none;
}

/* The white sheen sweep would compete with the gradient, so it is off for this button */
.btn-hero-cta::after {
  display: none;
}

.btn-hero-cta:hover,
.btn-hero-cta:focus-visible {
  color: #ffffff;
  opacity: 1;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  box-shadow: 0 8px 30px rgba(0, 112, 243, 0.35);
}

.btn-hero-cta:hover::before,
.btn-hero-cta:focus-visible::before {
  opacity: 1;
  animation: heroCtaShift 3s ease-in-out infinite alternate;
}

@keyframes heroCtaShift {
  from {
    background-position: 0% 50%;
  }
  to {
    background-position: 100% 50%;
  }
}

/* Reduced motion: the same gradient, static and full width, no animation */
@media (prefers-reduced-motion: reduce) {
  .btn-hero-cta::before {
    animation: none;
    background-size: 100% 100%;
  }
}

/* White pill in both themes (no border; light mode uses a soft shadow to lift it) */
.btn-white {
  background-color: #ffffff;
  color: #171717;
  border-color: transparent;
}

.btn-white:hover {
  background-color: #ededed;
  color: #171717;
}

html.light-mode .btn-white {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}

.btn-secondary {
  background-color: var(--cp-canvas-soft-2);
  color: var(--foreground);
  border: none;
}

.btn-secondary:hover {
  background-color: var(--secondary);
  border: none;
}

.btn-outline {
  background-color: var(--cp-canvas-soft-2);
  background-color: transparent;
  color: var(--foreground);
  border: none;
}

.btn-outline:hover {
  background-color: var(--accent);
  color: var(--accent-foreground);
}

.btn-ghost {
  background-color: transparent;
  color: var(--foreground);
  border: none;
}

.btn-ghost:hover {
  background-color: var(--secondary);
  color: var(--foreground);
}

.btn-link {
  background-color: transparent;
  color: var(--cp-link);
  text-underline-offset: 4px;
  padding: 0;
  height: auto;
}

.btn-link:hover {
  text-decoration: underline;
}

/* Button Sizes */
.btn-sm {
  height: 32px;
  padding: 0 var(--cp-space-3);
  font-size: 13px;
}

.btn-lg {
  height: 48px;
  padding: 0 var(--cp-space-6);
  font-size: 16px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--cp-radius-pill);
}

/* Badge Component */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--cp-space-1);
  border-radius: var(--cp-radius-pill);
  border: none;
  padding: 3px 10px;
  font-family: var(--cp-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.4;
  white-space: nowrap;
  transition: background-color var(--cp-dur) var(--cp-ease),
              color var(--cp-dur) var(--cp-ease),
              border-color var(--cp-dur) var(--cp-ease);
}

.badge-default {
  background-color: var(--primary);
  color: var(--primary-foreground);
  border: none;
}

.badge-secondary {
  background-color: var(--secondary);
  color: var(--secondary-foreground);
  border: none;
}

.badge-outline {
  background-color: transparent;
  color: var(--foreground);
  border: none;
}

/* Card Component */
.card {
  border-radius: var(--radius);
  border: none;
  background-color: var(--card);
  color: var(--card-foreground);
  box-shadow: var(--cp-shadow-card);
  transition: transform var(--cp-dur) var(--cp-ease),
              box-shadow var(--cp-dur) var(--cp-ease),
              border-color var(--cp-dur) var(--cp-ease);
  display: flex;
  flex-direction: column;
  padding: 32px;
  position: relative;
}

.card-header {
  display: flex;
  flex-direction: column;
  gap: var(--cp-space-2);
  margin-bottom: var(--cp-space-4);
}

.card-title {
  font-size: 20px;
  line-height: 28px;
  letter-spacing: -0.4px;
  font-weight: 600;
  color: var(--card-foreground);
}

.card-description {
  font-size: 14px;
  line-height: 22px;
  color: var(--muted-foreground);
  max-width: 62ch;
}

.card-content {
  flex: 1 1 auto;
}

.card-footer {
  display: flex;
  align-items: center;
  margin-top: var(--cp-space-6);
}

/* Tabs Component */
.tabs {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.tabs-list {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background-color: var(--muted);
  padding: 4px;
  color: var(--muted-foreground);
  gap: 4px;
}

.tabs-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  border-radius: calc(var(--radius) - 4px);
  padding: 6px 14px;
  font-size: 13px;
  font-family: var(--cp-font-sans);
  font-weight: 500;
  color: var(--muted-foreground);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--cp-dur) var(--cp-ease);
  outline: none;
}

.tabs-trigger:hover {
  color: var(--foreground);
}

.tabs-trigger[data-state="active"],
.tabs-trigger.active {
  background-color: var(--cp-canvas-soft-2);
  color: var(--foreground);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tabs-trigger:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.tabs-content {
  display: none;
}

.tabs-content[data-state="active"],
.tabs-content.active {
  display: block;
}

/* Separator Component */
.separator {
  flex-shrink: 0;
  display: none;
  height: 1px;
  width: 100%;
  border: none;
  margin: 0;
}

/* ==========================================================================
   3. TYPOGRAPHY & HEADINGS
   ========================================================================== */

h1, h2, h3, h4 {
  color: var(--cp-ink);
  font-family: var(--cp-font-sans);
  font-weight: 600;
}

/* Display XL (Hero h1) */
.hero-title {
  font-size: 72px;
  line-height: 78px;
  letter-spacing: -2.88px;
  font-weight: 600;
  color: var(--cp-ink);
  max-width: 672px;
  margin: 0 auto var(--cp-space-6) auto;
  text-align: center;
}

/* Display L (Section h2) */
.section-title {
  font-size: 40px;
  line-height: 44px;
  letter-spacing: -1.28px;
  font-weight: 600;
  color: var(--cp-ink);
  margin-bottom: var(--cp-space-4);
}

/* Paragraph line length capped at ~62ch */
.section-desc,
.cta-desc,
.card-description {
  font-size: 18px;
  line-height: 28px;
  font-weight: 400;
  color: var(--cp-body);
  max-width: 62ch;
  margin-left: auto;
  margin-right: auto;
}

.section-desc {
  font-size: 16px;
  line-height: 26px;
}

/* Eyebrow / Label (Mono) with colored dot */



.example-label {
  display: inline-flex;
  align-items: center;
  font-family: var(--cp-font-mono);
  font-size: 12px;
  line-height: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cp-muted);
  margin-bottom: var(--cp-space-3);
}


.unused-eyebrow-dots {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cp-accent-blue);
  margin-right: 8px;
  flex-shrink: 0;
}

/* Code & DOIs in mono */
code, pre, .font-mono {
  font-family: var(--cp-font-mono);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   4. LAYOUT & CONTAINERS (Breathing Room)
   ========================================================================== */

.cp-container {
  width: 100%;
  max-width: var(--cp-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--cp-gutter);
  padding-right: var(--cp-gutter);
}

/* Section vertical padding: 128px desktop */
.section {
  padding-top: 128px;
  padding-bottom: 128px;
  position: relative;
}

.section-soft {
  background-color: var(--cp-canvas-soft);
  border-top: none;
  border-bottom: none;
}

/* Section background washes (<= 8% opacity) */
#how-it-works {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-accent-blue) 8%, transparent), transparent 60%);
}

#evidence {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-accent-blue) 8%, transparent), transparent 60%), var(--cp-canvas-soft);
}

#modes {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-accent-red) 8%, transparent), transparent 60%);
}

#human-review {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-accent-red) 8%, transparent), transparent 60%), var(--cp-canvas-soft);
}

#mcp {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-link) 8%, transparent), transparent 60%);
}

#pricing {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-accent-blue) 8%, transparent), transparent 60%), var(--cp-canvas-soft);
}

#cta {
  background: radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--cp-accent-blue) 8%, transparent), transparent 60%);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px auto;
}

/* ==========================================================================
   5. STICKY NAVIGATION (64px, borderless, blur)
   ========================================================================== */

.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--cp-nav-height);
  background-color: rgba(0, 0, 0, 0.8);
  background-color: color-mix(in srgb, var(--cp-canvas) 80%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: none;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 250ms var(--cp-ease),
              opacity 250ms var(--cp-ease),
              visibility 0s linear 250ms;
}

.landing-header.scrolled,
.landing-header:focus-within {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

html.light-mode .landing-header.scrolled,
html.light-mode .landing-header:focus-within {
  background-color: rgba(255, 255, 255, 0.8);
  background-color: color-mix(in srgb, var(--cp-canvas) 80%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .landing-header {
    transform: none !important;
    transition: none !important;
    transition-delay: 0s !important;
  }

  .landing-header:not(.scrolled):not(:focus-within) {
    transform: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
  }

  .landing-header.scrolled,
  .landing-header:focus-within {
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    transition-delay: 0s !important;
  }
}

.nav-container {
  max-width: var(--cp-max-width);
  margin: 0 auto;
  padding: 0 var(--cp-gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cp-space-4);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--cp-space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  width: 28px;
  height: 28px;
  display: block;
  object-fit: contain;
}

.brand-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.4px;
  color: var(--cp-ink);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--cp-space-6);
}

.nav-link {
  font-size: 14px;
  color: var(--cp-body);
  transition: color var(--cp-dur) var(--cp-ease);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--cp-ink);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--cp-space-3);
  flex-shrink: 0;
}

.mobile-nav-toggle {
  display: none;
}

/* ==========================================================================
   6. HERO SECTION & LIVING GRADIENT MESH
   ========================================================================== */

.hero-section {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: safe center;
  align-items: center;
  box-sizing: border-box;
  padding-top: 48px;
  padding-bottom: 48px;
  text-align: center;
  overflow: hidden;
}

/* Soft, larger living mesh glow */
.hero-gradient-mesh {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1280px;
  height: 640px;
  pointer-events: none;
  z-index: 0;
  opacity: calc(0.44 - var(--scroll-progress, 0) * 0.85);
  filter: blur(100px);
  overflow: hidden;
  will-change: transform, filter, opacity;
}

html.light-mode .hero-gradient-mesh {
  opacity: calc(0.34 - var(--scroll-progress, 0) * 0.7);
}

.mesh-blob {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
}

.mesh-blob-1 {
  top: 4%;
  left: 10%;
  width: 520px;
  height: 400px;
  background: var(--cp-grad-a);
  animation: meshDrift1 20s ease-in-out infinite alternate;
}

.mesh-blob-2 {
  top: 12%;
  right: 10%;
  width: 480px;
  height: 420px;
  background: var(--cp-accent-blue);
  animation: meshDrift2 26s ease-in-out infinite alternate;
}

.mesh-blob-3 {
  top: 24%;
  left: 32%;
  width: 440px;
  height: 360px;
  background: var(--cp-grad-c);
  animation: meshDrift3 22s ease-in-out infinite alternate;
}

@keyframes meshDrift1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(45px, -30px) scale(1.12); }
  100% { transform: translate(-30px, 40px) scale(0.94); }
}

@keyframes meshDrift2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-50px, 35px) scale(1.08); }
  100% { transform: translate(35px, -45px) scale(0.92); }
}

@keyframes meshDrift3 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(35px, 40px) scale(0.95); }
  100% { transform: translate(-40px, -25px) scale(1.1); }
}

/* Pointer-following soft glow inside the hero */
@media (hover: hover) and (pointer: fine) {
  .hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 40%), rgba(82, 168, 255, 0.1), transparent 70%);
    opacity: 0.8;
    transition: opacity 300ms ease;
  }

  html.light-mode .hero-section::before {
    background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 40%), rgba(0, 112, 243, 0.08), transparent 70%);
  }
}

/* Screen reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Hero title structure */
.hero-title-visible {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title-line {
  display: block;
}

/* Rotator CSS Grid container (same cell 1 / 1, clipped) */
.hero-rotator {
  display: inline-grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  overflow: hidden;
  position: relative;
  vertical-align: middle;
  padding: 0.12em 0.05em;
  margin: -0.12em 0;
  line-height: 1.15;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.hero-rotator::-webkit-scrollbar {
  display: none;
}

/* Stacked rotating words */
.hero-rotator-word {
  grid-area: 1 / 1;
  font-weight: 600;
  white-space: nowrap;
  transform: translateY(150%);
  opacity: 0;
  transition: transform 700ms cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 400ms ease;
  will-change: transform, opacity;
  pointer-events: none;
  color: var(--cp-ink);
}

@supports (-webkit-background-clip: text) or (background-clip: text) {
  .hero-rotator-word {
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.hero-rotator-word[data-state="active"] {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.hero-rotator-word[data-state="before"] {
  transform: translateY(-150%);
  opacity: 0;
}

.hero-rotator-word[data-state="after"] {
  transform: translateY(150%);
  opacity: 0;
}

/* Accent gradient fills for rotating words with plain color fallbacks */
/* 1: evidence-grounded (blue to lighter blue) */
.hero-rotator-word:nth-child(1) {
  color: var(--cp-accent-blue);
  background-image: linear-gradient(135deg, var(--cp-accent-blue), var(--cp-accent-teal));
}

/* 2: citation-checked (blue to red) */
.hero-rotator-word:nth-child(2) {
  color: var(--cp-accent-purple);
  background-image: linear-gradient(135deg, var(--cp-accent-purple), var(--cp-accent-pink));
}

/* 3: PRISMA-tracked (red to lighter red) */
.hero-rotator-word:nth-child(3) {
  color: var(--cp-accent-amber);
  background-image: linear-gradient(135deg, var(--cp-accent-amber), var(--cp-accent-red));
}

/* 4: human-reviewed (lighter blue to blue) */
.hero-rotator-word:nth-child(4) {
  color: var(--cp-accent-teal);
  background-image: linear-gradient(135deg, var(--cp-accent-teal), var(--cp-accent-blue));
}

/* Light mode accessible high-contrast gradient stops (all > 4.5:1 on #ffffff) */
html.light-mode .hero-rotator-word:nth-child(1) {
  color: #0062d6;
  background-image: linear-gradient(135deg, #0062d6, #0070f3);
}

html.light-mode .hero-rotator-word:nth-child(2) {
  color: #0062d6;
  background-image: linear-gradient(135deg, #0062d6, #ee0000);
}

html.light-mode .hero-rotator-word:nth-child(3) {
  color: #c50000;
  background-image: linear-gradient(135deg, #c50000, #ee0000);
}

html.light-mode .hero-rotator-word:nth-child(4) {
  color: #0070f3;
  background-image: linear-gradient(135deg, #0070f3, #0062d6);
}

/* Hero subtitle paragraph */
.hero-subtitle {
  font-size: 20px;
  line-height: 32px;
  letter-spacing: -0.2px;
  font-weight: 400;
  color: var(--muted-foreground);
  max-width: 672px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.hero-container {
  position: relative;
  z-index: 1;
  width: 100%;
  margin-top: auto;
  margin-bottom: auto;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-btn-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--cp-space-4);
  margin-top: var(--cp-space-8);
  margin-bottom: var(--cp-space-8);
  flex-wrap: wrap;
}

/* Small mono trust line */
.hero-trust-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--cp-space-6);
  flex-wrap: wrap;
  font-family: var(--cp-font-mono);
  font-size: 12px;
  line-height: 16px;
  color: var(--cp-muted);
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: var(--cp-space-1);
}

.trust-icon {
  color: var(--cp-ink);
  flex-shrink: 0;
}

/* Floating decorative hero pills */
.hero-floating-chips {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: visible;
}

/* Floating hero pills: text only, round at rest, expand on hover to show the detail line */
.floating-hero-card {
  position: absolute;
  width: 152px;
  padding: 11px 20px;
  border-radius: 999px;
  background-color: rgba(0, 0, 0, 0.55);
  background-color: color-mix(in srgb, var(--cp-canvas) 55%, transparent);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  border: none;
  pointer-events: auto;
  cursor: default;
  opacity: 0;
  will-change: transform, opacity, translate;
  transition: translate 200ms ease-out,
              scale 350ms cubic-bezier(0.34, 1.56, 0.64, 1),
              width 350ms cubic-bezier(0.34, 1.56, 0.64, 1),
              padding 350ms var(--cp-ease),
              border-radius 350ms var(--cp-ease),
              background-color 250ms var(--cp-ease),
              box-shadow 250ms var(--cp-ease);
}

html.light-mode .floating-hero-card {
  background-color: rgba(255, 255, 255, 0.72);
  background-color: color-mix(in srgb, var(--cp-canvas) 72%, transparent);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.floating-hero-card:hover {
  width: 284px;
  padding: 14px 22px 15px;
  border-radius: 26px;
  scale: 1.04;
  background-color: rgba(10, 10, 10, 0.82);
  background-color: color-mix(in srgb, var(--cp-canvas) 82%, transparent);
  box-shadow: 0 16px 44px rgba(0, 112, 243, 0.28);
}

html.light-mode .floating-hero-card:hover {
  background-color: rgba(255, 255, 255, 0.92);
  background-color: color-mix(in srgb, var(--cp-canvas) 92%, transparent);
  box-shadow: 0 16px 44px rgba(0, 112, 243, 0.2);
}

.fcard-header {
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-hero-card:hover .fcard-header {
  justify-content: flex-start;
}

.fcard-title {
  font-family: var(--cp-font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--cp-ink);
  line-height: 1.2;
  white-space: nowrap;
}

/* The detail line opens downward on hover */
.fcard-reveal {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 350ms var(--cp-ease), opacity 250ms var(--cp-ease);
}

.fcard-reveal > .fcard-value {
  min-height: 0;
  overflow: hidden;
}

.floating-hero-card:hover .fcard-reveal {
  grid-template-rows: 1fr;
  opacity: 1;
  transition-delay: 60ms;
}

.fcard-value {
  font-family: var(--cp-font-mono);
  font-size: 11px;
  line-height: 15px;
  color: var(--cp-muted);
  padding-top: 7px;
}

/* Placements around hero headline, clear of text */
.floating-card-1 {
  top: clamp(76px, 15%, 96px);
  left: -32px;
  translate: calc(var(--px, 0px) * -0.035) calc(var(--py, 0px) * -0.035);
  animation: cardEntrance1 220ms cubic-bezier(0.16, 1, 0.3, 1) 0ms forwards, floatCard1 8s ease-in-out 220ms infinite alternate;
}

.floating-card-2 {
  top: clamp(140px, 26%, 170px);
  right: -32px;
  left: auto;
  translate: calc(var(--px, 0px) * -0.045) calc(var(--py, 0px) * -0.045);
  animation: cardEntrance2 220ms cubic-bezier(0.16, 1, 0.3, 1) 0ms forwards, floatCard2 9s ease-in-out 220ms infinite alternate;
}

.floating-card-3 {
  top: clamp(230px, 42%, 260px);
  left: -24px;
  translate: calc(var(--px, 0px) * -0.025) calc(var(--py, 0px) * -0.025);
  animation: cardEntrance3 220ms cubic-bezier(0.16, 1, 0.3, 1) 0ms forwards, floatCard3 7.5s ease-in-out 220ms infinite alternate;
}

@keyframes cardEntrance1 {
  from { opacity: 0; transform: translateY(16px) rotate(-3deg); }
  to { opacity: 1; transform: translateY(0) rotate(-3deg); }
}

@keyframes cardEntrance2 {
  from { opacity: 0; transform: translateY(16px) rotate(2deg); }
  to { opacity: 1; transform: translateY(0) rotate(2deg); }
}

@keyframes cardEntrance3 {
  from { opacity: 0; transform: translateY(16px) rotate(-1.5deg); }
  to { opacity: 1; transform: translateY(0) rotate(-1.5deg); }
}

@keyframes floatCard1 {
  0% { transform: translateY(0) rotate(-3deg); }
  100% { transform: translateY(-10px) rotate(-2deg); }
}

@keyframes floatCard2 {
  0% { transform: translateY(0) rotate(2deg); }
  100% { transform: translateY(-12px) rotate(3deg); }
}

@keyframes floatCard3 {
  0% { transform: translateY(0) rotate(-1.5deg); }
  100% { transform: translateY(-8px) rotate(-0.5deg); }
}

/* Hidden below 1100px wide or when viewport height <= 700px */
@media (max-width: 1100px), (max-height: 700px) {
  .hero-floating-chips {
    display: none !important;
  }
}

/* Pause when animation pause controller active */
.animations-paused .floating-hero-card,
.anim-paused .floating-hero-card {
  animation-play-state: paused !important;
}

.unused-chip-base {
  position: absolute;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  animation: floatChip 7s ease-in-out infinite alternate;
  pointer-events: none;
  will-change: transform;
}

.unused-chip-1 {
  top: 18%;
  left: 4%;
  animation-duration: 6.5s;
}

.unused-chip-2 {
  top: 32%;
  right: 5%;
  animation-duration: 7.5s;
  animation-delay: -2s;
}

.unused-chip-3 {
  bottom: 14%;
  left: 8%;
  animation-duration: 8s;
  animation-delay: -4s;
}

@keyframes unusedFloatChip {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-16px) rotate(1.5deg); }
}

@media (max-width: 960px) {
  .hero-floating-chips {
    display: none;
  }
}

/* ==========================================================================
   7. SOURCE MARQUEE STRIP
   ========================================================================== */

.sources-marquee-section {
  padding: var(--cp-space-6) 0;
  border: none;
  background-color: var(--cp-canvas-soft);
  position: relative;
  z-index: 2;
  width: 100%;
}

.sources-strip-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--cp-space-4);
}

.sources-strip-header {
  text-align: center;
}

.sources-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 1000px;
}

.source-item {
  display: flex;
  align-items: center;
}

.source-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--cp-radius-sm);
  padding: 4px 8px;
  background-color: transparent;
  border: none;
  cursor: pointer;
  text-decoration: none;
  opacity: 0.85;
  transition: transform var(--cp-dur) var(--cp-ease),
              background-color var(--cp-dur) var(--cp-ease),
              opacity var(--cp-dur) var(--cp-ease);
}

html.light-mode .source-tile {
  background-color: transparent;
}

.source-tile:hover {
  opacity: 1;
  transform: translateY(-2px);
  background-color: rgba(255, 255, 255, 0.08);
}

html.light-mode .source-tile:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.source-tile:active {
  transform: translateY(0) scale(0.98);
  background-color: rgba(255, 255, 255, 0.12);
}

html.light-mode .source-tile:active {
  background-color: rgba(0, 0, 0, 0.08);
}

.source-tile:focus-visible {
  outline: 2px solid var(--cp-ink);
  outline-offset: 2px;
}

.source-tile:focus:not(:focus-visible) {
  outline: none;
}

.source-logo {
  height: 24px;
  width: auto;
  object-fit: contain;
  display: block;
}

.source-tile-text {
  font-family: var(--cp-font-sans);
  font-size: 14px;
  font-weight: 600;
  color: #111111;
  height: 24px;
  display: inline-flex;
  align-items: center;
  line-height: 1;
  letter-spacing: -0.2px;
}

.sources-note {
  font-family: var(--cp-font-mono);
  font-size: 11px;
  line-height: 16px;
  color: var(--cp-muted);
  text-align: center;
  margin: 0;
}

.unused-old-marquee-section {
  padding: var(--cp-space-4) 0;
  border-top: none;
  border-bottom: none;
  background-color: var(--cp-canvas-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  gap: var(--cp-space-6);
  position: relative;
  z-index: 2;
}

.marquee-label {
  font-family: var(--cp-font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cp-muted);
  white-space: nowrap;
  padding-left: var(--cp-gutter);
  flex-shrink: 0;
}

.marquee-container {
  display: flex;
  overflow: hidden;
  position: relative;
  width: 100%;
  mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: var(--cp-space-8);
  flex-shrink: 0;
  animation: marqueeScroll 28s linear infinite;
  padding-right: var(--cp-space-8);
  will-change: transform;
}

.marquee-container:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-item {
  font-family: var(--cp-font-mono);
  font-size: 13px;
  color: var(--cp-muted);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}

.marquee-item::after {
  content: '·';
  margin-left: var(--cp-space-8);
  color: var(--cp-muted);
}

@keyframes unusedMarqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

/* ==========================================================================
   8. REAL EXAMPLE VIEWER (SHOWCASE BAND)
   ========================================================================== */

.showcase-band {
  background-color: #000000;
  color: #ededed;
  border-top: none;
  border-bottom: none;
  padding-top: 128px;
  padding-bottom: 128px;
  position: relative;
}

.showcase-band .section-title {
  color: #ededed;
}

.showcase-band .section-desc {
  color: #a1a1a1;
}

.showcase-band-unused { display: none; } .old-showcase-unused {
  color: #8f8f8f;
}

/* Three example selector tabs */
.example-tabs {
  margin-bottom: var(--cp-space-6);
}

.example-selector-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--cp-space-4);
  background: transparent;
  padding: 0;
  width: 100%;
}

.example-select-btn {
  background: #0a0a0a;
  border: none;
  border-radius: var(--cp-radius-md);
  padding: var(--cp-space-4);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--cp-dur) var(--cp-ease),
              background-color var(--cp-dur) var(--cp-ease),
              transform var(--cp-dur) var(--cp-ease);
  color: inherit;
  display: block;
}

.example-select-btn:hover {
  border: none;
  background-color: #111111;
}

.example-select-btn[data-state="active"],
.example-select-btn.active {
  border: none;
  background-color: #111111;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.example-select-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: #ededed;
  margin-bottom: var(--cp-space-1);
}

.example-select-sub {
  display: block;
  font-size: 13px;
  color: #8f8f8f;
}

/* Question box & 3 metrics */
.example-question-box {
  background: #0a0a0a;
  border: none;
  border-radius: var(--cp-radius-md);
  padding: var(--cp-space-4) var(--cp-space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cp-space-6);
  margin-bottom: var(--cp-space-6);
  flex-wrap: wrap;
}

.example-question-left {
  flex: 1;
  min-width: 260px;
}

.example-question-text {
  font-size: 16px;
  font-weight: 500;
  color: #ededed;
  line-height: 24px;
}

.example-counts-row {
  display: flex;
  align-items: center;
  gap: var(--cp-space-3);
  flex-wrap: wrap;
}

.metric-chip {
  font-family: var(--cp-font-mono);
  font-size: 13px;
  padding: var(--cp-space-2) var(--cp-space-3);
  background: #111111;
  border: none;
  border-radius: var(--cp-radius-sm);
  color: #a1a1a1;
  font-variant-numeric: tabular-nums;
}

.metric-chip strong {
  color: #ededed;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.metric-chip-highlight {
  border: none;
  color: #52a8ff;
}

.metric-chip-highlight strong {
  color: #52a8ff;
}

/* Output Window Component (with 3D tilt) */
.output-window {
  background-color: #0a0a0a;
  border: none;
  border-radius: var(--cp-radius-md);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  transition: transform 150ms ease-out, box-shadow 150ms ease-out;
  transform-style: preserve-3d;
}

.output-window-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--cp-space-3) var(--cp-space-4);
  border-bottom: none;
  background-color: #0f0f0f;
  gap: var(--cp-space-4);
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.win-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #2e2e2e;
}

.window-subtabs {
  display: flex;
  align-items: center;
  gap: var(--cp-space-2);
  background: transparent;
  padding: 0;
}

.window-subtab-btn {
  font-family: var(--cp-font-mono);
  font-size: 13px;
  padding: 4px 12px;
  border-radius: var(--cp-radius-sm);
  background: transparent;
  color: #8f8f8f;
  border: none;
  cursor: pointer;
  transition: all var(--cp-dur) var(--cp-ease);
}

.window-subtab-btn:hover {
  color: #ededed;
  background: #161616;
}

.window-subtab-btn[data-state="active"],
.window-subtab-btn.active {
  color: #ededed;
  background: #1c1c1c;
  border: none;
}

.output-window-body {
  padding: var(--cp-space-6);
  min-height: 380px;
}

/* Sub-tab cross-fade with 8px rise */
.window-tab-pane {
  display: none;
  opacity: 0;
  transform: translateY(8px);
}

.window-tab-pane[data-state="active"],
.window-tab-pane.active {
  display: block;
  animation: tabPaneFadeIn 250ms var(--cp-ease) forwards;
}

@keyframes tabPaneFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Paper Preview Pane */
.paper-preview-card {
  max-width: 900px;
  margin: 0 auto;
}

.paper-mock-title {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: #ededed;
  margin-bottom: var(--cp-space-2);
}

.paper-mock-meta {
  font-family: var(--cp-font-mono);
  font-size: 12px;
  line-height: 18px;
  color: #8f8f8f;
  margin-bottom: var(--cp-space-4);
  padding-bottom: var(--cp-space-3);
  border-bottom: none;
}

.paper-mock-abstract,
.paper-mock-body {
  font-size: 14px;
  line-height: 22px;
  color: #a1a1a1;
  margin-bottom: var(--cp-space-4);
}

.paper-abstract-label,
.paper-body-label {
  color: #ededed;
  font-weight: 600;
  margin-right: var(--cp-space-2);
}

.paper-mock-citations {
  border-top: none;
  padding-top: var(--cp-space-4);
  margin-top: var(--cp-space-4);
}

.paper-citations-label {
  display: block;
  font-family: var(--cp-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #8f8f8f;
  margin-bottom: var(--cp-space-2);
}

.paper-citations-list {
  list-style: none;
  font-size: 13px;
  line-height: 20px;
  color: #a1a1a1;
}

.paper-citations-list li {
  margin-bottom: var(--cp-space-2);
  padding-left: var(--cp-space-3);
  border-left: none;
}

/* PRISMA Diagram Flow with vertical connecting gradient lines */
.prisma-diagram-container {
  display: flex;
  flex-direction: column;
  gap: var(--cp-space-6);
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.prisma-step-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--cp-space-4);
  position: relative;
}

.prisma-step-row:last-child {
  grid-template-columns: 1fr;
}

/* Gradient line connecting PRISMA rows */
.prisma-step-row:not(:last-child)::after {
  content: '';
  position: absolute;
  bottom: calc(-1 * var(--cp-space-6));
  left: 25%;
  width: 2px;
  height: var(--cp-space-6);
  background: linear-gradient(180deg, var(--cp-accent-blue), var(--cp-accent-teal));
  transform-origin: top;
  animation: drawLine 400ms var(--cp-ease) forwards;
}

@keyframes drawLine {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.prisma-box {
  background: #111111;
  border: none;
  border-radius: var(--cp-radius-sm);
  padding: var(--cp-space-4);
  animation: prismaBoxIn 350ms var(--cp-ease) backwards;
}

@keyframes prismaBoxIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.prisma-step-row:nth-child(1) .prisma-box { animation-delay: 60ms; }
.prisma-step-row:nth-child(2) .prisma-box { animation-delay: 180ms; }
.prisma-step-row:nth-child(3) .prisma-box { animation-delay: 300ms; }

.prisma-box-title {
  font-family: var(--cp-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  color: #8f8f8f;
  margin-bottom: var(--cp-space-1);
}

.prisma-box-stat {
  font-family: var(--cp-font-mono);
  font-size: 15px;
  font-weight: 600;
  color: #ededed;
  margin-bottom: var(--cp-space-1);
  font-variant-numeric: tabular-nums;
}

.prisma-box-sub {
  font-size: 12px;
  line-height: 16px;
  color: #8f8f8f;
}

.prisma-box-excluded {
  border: none;
  opacity: 0.85;
}

.prisma-box-excluded .prisma-box-stat {
  color: #ff6166;
}

/* Evidence Table */
.table-scroll-wrap {
  width: 100%;
  overflow-x: auto;
}

.evidence-matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

.evidence-matrix-table th {
  background-color: #141414;
  font-family: var(--cp-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #8f8f8f;
  padding: var(--cp-space-3) var(--cp-space-4);
  border-bottom: none;
}

.evidence-matrix-table td {
  padding: var(--cp-space-3) var(--cp-space-4);
  border: none;
  color: #a1a1a1;
  vertical-align: top;
  line-height: 20px;
}

.evidence-matrix-table tr:nth-child(even) td { background-color: #0d0d0d; }
.evidence-matrix-table td strong {
  color: #ededed;
  font-weight: 500;
}

.evidence-tag {
  display: inline-block;
  font-family: var(--cp-font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: var(--cp-radius-sm);
  background: #1c1c1c;
  color: #ededed;
  border: none;
  white-space: nowrap;
}

.showcase-cta-bar {
  text-align: center;
  margin-top: var(--cp-space-8);
}

/* ==========================================================================
   9. STEP CARDS (4 Steps)
   ========================================================================== */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.step-card {
  transition: transform var(--cp-dur) var(--cp-ease),
              box-shadow var(--cp-dur) var(--cp-ease),
              border-color var(--cp-dur) var(--cp-ease);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.step-num-badge {
  align-self: flex-start;
  font-weight: 600;
  margin-bottom: var(--cp-space-2);
}

/* Step number badges get distinct accents */
.steps-grid .step-card:nth-child(1) .step-num-badge {
  border: none;
  color: var(--cp-accent-blue);
  background: var(--cp-accent-blue-tint);
}

.steps-grid .step-card:nth-child(2) .step-num-badge {
  border: none;
  color: var(--cp-accent-purple);
  background: var(--cp-accent-purple-tint);
}

.steps-grid .step-card:nth-child(3) .step-num-badge {
  border: none;
  color: var(--cp-accent-amber);
  background: var(--cp-accent-amber-tint);
}

.steps-grid .step-card:nth-child(4) .step-num-badge {
  border: none;
  color: var(--cp-accent-teal);
  background: var(--cp-accent-teal-tint);
}

.step-desc {
  font-size: 14px;
  line-height: 22px;
  color: var(--cp-muted);
}

/* ==========================================================================
   10. EVIDENCE & CITATION CHECKS (4 Cards)
   ========================================================================== */

.checks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

/* Minimal tone-step cards: no borders, no rings, no per-card colors */
.checks-grid .check-card {
  padding: 28px;
  border-radius: calc(var(--cp-radius-md) + 4px);
  background-color: var(--cp-canvas-soft-2);
  box-shadow: none;
  transition: transform var(--cp-dur) var(--cp-ease),
              background-color var(--cp-dur) var(--cp-ease),
              opacity 600ms var(--cp-ease),
              filter 600ms var(--cp-ease);
}

.checks-grid .check-card:hover {
  transform: translateY(-2px);
  background-color: color-mix(in srgb, var(--cp-canvas-soft-2) 95%, var(--cp-ink));
}

html.light-mode .checks-grid .check-card:hover {
  background-color: var(--cp-canvas);
}

.checks-grid .check-card .card-header {
  gap: var(--cp-space-3);
}

/* Plain icon in the single accent blue: no tile, no glow */
.check-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  width: 20px;
  height: 20px;
  color: var(--cp-link);
}

.check-card-title {
  font-size: 17px;
  line-height: 24px;
  letter-spacing: -0.2px;
  font-weight: 600;
  color: var(--cp-ink);
}

.check-card-desc {
  font-size: 15px;
  line-height: 24px;
  color: var(--cp-muted);
  max-width: 52ch;
  margin-left: 0;
  margin-right: 0;
}

/* ==========================================================================
   11. TWO MODES & ROTATING GRADIENT BORDER
   ========================================================================== */

.modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
}

.mode-card {
  padding: 32px;
  position: relative;
  transition: transform var(--cp-dur) var(--cp-ease),
              box-shadow var(--cp-dur) var(--cp-ease);
}

.mode-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

/* Rotating gradient border for Research Mode & CTA card */
.mode-card-featured::before,
.cta-card::before {
  content: '';
  position: absolute;
  inset: -24px;
  border-radius: calc(var(--radius) + 24px);
  background: radial-gradient(circle at 50% 50%, rgba(82, 168, 255, 0.12), rgba(0, 112, 243, 0.12), transparent 70%);
  filter: blur(28px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.9;
}

html.light-mode .mode-card-featured::before,
html.light-mode .cta-card::before {
  background: radial-gradient(circle at 50% 50%, rgba(0, 112, 243, 0.10), rgba(0, 98, 214, 0.10), transparent 70%);
}
.unused-gradient-border-mode,
.unused-old-cta-card-before {
  content: '';
  position: absolute;
  inset: -24px;
  border-radius: calc(var(--radius) + 24px);
  background: radial-gradient(circle at 50% 50%, rgba(82, 168, 255, 0.12), rgba(0, 112, 243, 0.12), transparent 70%);
  filter: blur(28px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.9;
}

html.light-mode .unused-gradient-border-mode,
html.light-mode .unused-old-cta-card-before {
  background: radial-gradient(circle at 50% 50%, rgba(0, 112, 243, 0.10), rgba(0, 98, 214, 0.10), transparent 70%);
}

/* old angle property */ .unused-angle-1 {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

.mode-card-featured,
.cta-card {
  position: relative;
  border: none;
}

/* old gradient border removed */
.unused-gradient-border-mode,
.unused-old-cta-card-before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--cp-accent-blue), var(--cp-accent-purple), var(--cp-accent-pink));
  display: none;
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 1;
}

/* old rotating conic removed */ .unused-conic { display: none; }
@supports (background: paint(something)) or (--angle: 0deg) {
  .unused-gradient-border-mode,
  .unused-old-cta-card-before {
    display: none;
    animation: rotateAngle 10s linear infinite;
  }
}

@keyframes unusedRotateAngle {
  to {
    --angle: 360deg;
  }
}

/* Sits inside the card: the featured card clips its overflow, so a badge that pokes out gets cut off. */
.mode-badge {
  position: absolute;
  top: var(--cp-space-6);
  right: var(--cp-space-6);
  z-index: 2;
}

.mode-card-header {
  margin-bottom: var(--cp-space-4);
  padding-bottom: var(--cp-space-4);
  border-bottom: none;
}

.mode-tagline {
  font-size: 15px;
  color: var(--cp-muted);
}

.mode-specs {
  list-style: none;
  margin-bottom: var(--cp-space-6);
  flex-grow: 1;
}

.mode-spec-item {
  display: flex;
  flex-direction: column;
  padding: var(--cp-space-3) 0;
  border-bottom: none;
  font-size: 14px;
  line-height: 20px;
}

.mode-spec-item:last-child {
  border-bottom: none;
}

.mode-spec-label {
  font-family: var(--cp-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cp-muted);
  margin-bottom: 2px;
}

.mode-spec-value {
  color: var(--cp-ink);
  font-weight: 500;
}

.mode-card-footer {
  margin-top: auto;
}

.mode-btn {
  width: 100%;
}

/* ==========================================================================
   12. HUMAN REVIEW (3 Checkpoints)
   ========================================================================== */

.checkpoints-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Borderless tone-step cards, numbered 01 to 03 in one accent blue */
.checkpoints-grid .checkpoint-card {
  padding: var(--cp-space-8);
  border-radius: calc(var(--cp-radius-md) + 4px);
  background-color: var(--cp-canvas-soft-2);
  box-shadow: none;
  transition: transform var(--cp-dur) var(--cp-ease),
              background-color var(--cp-dur) var(--cp-ease),
              opacity 600ms var(--cp-ease),
              filter 600ms var(--cp-ease);
}

.checkpoints-grid .checkpoint-card:hover {
  transform: translateY(-4px);
  background-color: color-mix(in srgb, var(--cp-canvas-soft-2) 95%, var(--cp-ink));
}

html.light-mode .checkpoints-grid .checkpoint-card:hover {
  background-color: var(--cp-canvas);
}

.checkpoint-num {
  display: block;
  font-family: var(--cp-font-mono);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  font-variant-numeric: tabular-nums;
  color: var(--cp-link);
}

.checkpoint-title {
  font-size: 20px;
  line-height: 28px;
  letter-spacing: -0.4px;
  font-weight: 600;
  color: var(--cp-ink);
}

.checkpoint-desc {
  font-size: 15px;
  line-height: 24px;
  color: var(--cp-muted);
  margin-left: 0;
  margin-right: 0;
}

/* ==========================================================================
   13. CLAUDE SCIENCE (MCP) & PRICING TEASER
   ========================================================================== */

/* Two columns on desktop: text 5/12, diagram 7/12 */
.mcp-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 64px;
  align-items: center;
}

.mcp-text {
  text-align: left;
}

.mcp-subtitle {
  font-size: 18px;
  line-height: 28px;
  color: var(--cp-body);
  margin-bottom: var(--cp-space-8);
}

.mcp-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--cp-space-3);
  margin-bottom: var(--cp-space-6);
}

.mcp-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--cp-space-3);
  font-size: 15px;
  line-height: 24px;
  color: var(--cp-ink);
}

.mcp-check {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--cp-link);
}

.mcp-honesty {
  font-size: 14px;
  line-height: 22px;
  color: var(--cp-muted);
  margin-bottom: var(--cp-space-8);
}

.mcp-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--cp-space-6);
}

.mcp-text-link {
  font-size: 14px;
  color: var(--cp-muted);
  transition: color var(--cp-dur) var(--cp-ease);
}

.mcp-text-link:hover {
  color: var(--cp-ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Diagram sits in a borderless tone-step panel */
.mcp-diagram-panel {
  background-color: var(--cp-canvas-soft);
  border-radius: calc(var(--cp-radius-md) + 8px);
  padding: var(--cp-space-6);
  box-shadow: none;
}

.mcp-diagram {
  display: block;
  width: 100%;
  height: auto;
}

.mcp-footnote {
  margin-top: var(--cp-space-8);
  font-size: 12px;
  line-height: 18px;
  color: var(--cp-muted);
}

/* Diagram parts: nodes have no stroke; arrows are 1.5 px muted lines */
.mcp-glow {
  fill: var(--cp-link);
  opacity: 0.12;
}

.mcp-node {
  fill: var(--cp-canvas-soft-2);
  stroke: none;
}

.mcp-arrow {
  fill: none;
  stroke: var(--cp-muted);
  stroke-width: 1.5;
}

.mcp-arrowhead {
  fill: var(--cp-muted);
}

.mcp-claude-mark {
  color: var(--cp-ink);
}

.mcp-node-title {
  font-family: var(--cp-font-sans);
  font-size: 16px;
  font-weight: 600;
  fill: var(--cp-ink);
}

.mcp-node-sub {
  font-family: var(--cp-font-sans);
  font-size: 12px;
  fill: var(--cp-muted);
}

.mcp-node-mono {
  font-family: var(--cp-font-mono);
  font-size: 11px;
  fill: var(--cp-muted);
}

/* Travelling dots along the arrows: only with motion allowed */
.mcp-flow {
  display: none;
}

@media (prefers-reduced-motion: no-preference) {
  .mcp-flow {
    display: inline;
    fill: none;
    stroke: var(--cp-link);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 0.1 1000;
  }

  .mcp-flow-short {
    animation: mcpFlowShort 3s linear infinite;
  }

  .mcp-flow-long {
    animation: mcpFlowLong 3s linear infinite;
  }
}

@keyframes mcpFlowShort {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -50;
  }
}

@keyframes mcpFlowLong {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -125;
  }
}

.pricing-teaser-card {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.pricing-teaser-title {
  font-size: 24px;
  line-height: 32px;
  letter-spacing: -0.6px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   14. FINAL CTA & FOOTER
   ========================================================================== */

.cta-section {
  padding-top: 128px;
  padding-bottom: 128px;
  text-align: center;
  position: relative;
}

.cta-card {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px;
}

.cta-title {
  font-size: 40px;
  line-height: 44px;
  letter-spacing: -1.28px;
}

.cta-btn-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--cp-space-4);
  flex-wrap: wrap;
}

/* Footer: canvas-soft background, borderless, 4 columns, mono legal */
.landing-footer {
  background-color: var(--cp-canvas-soft);
  border-top: none;
  padding-top: var(--cp-space-16);
  padding-bottom: var(--cp-space-12);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: var(--cp-space-12);
}

.footer-col-header {
  font-family: var(--cp-font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cp-ink);
  margin-bottom: var(--cp-space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--cp-space-2);
}

.footer-links a {
  color: var(--cp-muted);
  transition: color var(--cp-dur) var(--cp-ease);
}

.footer-links a:hover {
  color: var(--cp-ink);
}

.footer-links span {
  color: var(--cp-muted);
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--cp-space-6);
  font-family: var(--cp-font-mono);
  font-size: 12px;
  color: var(--cp-muted);
  flex-wrap: wrap;
  gap: var(--cp-space-4);
}

/* ==========================================================================
   15. CURSOR SPOTLIGHT ON CARDS (Desktop fine pointer only)
   ========================================================================== */

@media (hover: hover) and (pointer: fine) {
  .step-card,
  .check-card,
  .mode-card,
  .checkpoint-card,
  .mcp-card,
  .pricing-teaser-card {
    position: relative;
    overflow: hidden;
  }

  .step-card::after,
  .check-card::after,
  .mode-card::after,
  .checkpoint-card::after,
  .mcp-card::after,
  .pricing-teaser-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(400px circle at var(--mx, -999px) var(--my, -999px), rgba(255, 255, 255, 0.06), transparent 70%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 300ms ease;
    z-index: 1;
  }

  html.light-mode .step-card::after,
  html.light-mode .check-card::after,
  html.light-mode .mode-card::after,
  html.light-mode .checkpoint-card::after,
  html.light-mode .mcp-card::after,
  html.light-mode .pricing-teaser-card::after {
    background: radial-gradient(400px circle at var(--mx, -999px) var(--my, -999px), rgba(0, 0, 0, 0.04), transparent 70%);
  }

  .step-card:hover::after,
  .check-card:hover::after,
  .mode-card:hover::after,
  .checkpoint-card:hover::after,
  .mcp-card:hover::after,
  .pricing-teaser-card:hover::after {
    opacity: 1;
  }
}

/* ==========================================================================
   16. SCROLL REVEAL (Fade, Rise 24px, Blur to sharp, Staggered)
   ========================================================================== */

.scroll-reveal {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(6px);
  transition: opacity 600ms var(--cp-ease),
              transform 600ms var(--cp-ease),
              filter 600ms var(--cp-ease);
  transition-delay: calc(var(--i, 0) * 80ms);
  will-change: opacity, transform, filter;
}

.scroll-reveal.in-view {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Pause animations when tab is hidden or section is out of viewport */
.animations-paused *,
.animations-paused *::before,
.animations-paused *::after,
.anim-paused,
.anim-paused *,
.anim-paused *::before,
.anim-paused *::after {
  animation-play-state: paused !important;
}

/* ==========================================================================
   17. REDUCED MOTION PREFERENCES
   No movement, no infinite animation, no count-up delay, no tilt, no marquee motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .scroll-reveal {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
    transition-delay: 0ms !important;
  }

  .hero-gradient-mesh,
  .mesh-blob,
  .hero-title-gradient,
  .hero-rotator-word,
  .floating-hero-card,
  .unused-gradient-border-mode,
  .cta-card::before,
  .btn-default::after {
    animation: none !important;
  }

  /* Cards are visible at once when motion is reduced (their entrance animation is off) */
  .floating-hero-card {
    opacity: 1 !important;
  }

  .hero-rotator-word {
    transition: none !important;
    animation: none !important;
  }

  .hero-rotator-word[data-state="active"] {
    transform: none !important;
    opacity: 1 !important;
  }

  .hero-rotator-word:not([data-state="active"]) {
    display: none !important;
  }

  .hero-title-gradient {
    background: none !important;
    -webkit-text-fill-color: var(--cp-ink) !important;
    color: var(--cp-ink) !important;
  }

  .hero-floating-chips {
    display: none !important;
  }

  .marquee-track {
    animation: none !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    padding-right: 0 !important;
  }

  .marquee-track[aria-hidden="true"] {
    display: none !important;
  }

  .marquee-container {
    mask-image: none !important;
    -webkit-mask-image: none !important;
    overflow: visible !important;
  }

  .output-window {
    transform: none !important;
  }

  .window-tab-pane[data-state="active"],
  .window-tab-pane.active {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .prisma-step-row:not(:last-child)::after {
    animation: none !important;
    transform: scaleY(1) !important;
  }

  .prisma-box {
    animation: none !important;
  }
}

/* ==========================================================================
   18. RESPONSIVE BREAKPOINTS (1200, 960, 600, phone 360px safe)
   ========================================================================== */

@media (max-width: 1200px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: var(--cp-nav-height);
    left: 0;
    right: 0;
    background-color: var(--cp-canvas);
    border-bottom: none;
    flex-direction: column;
    padding: var(--cp-space-6);
    gap: var(--cp-space-4);
    align-items: flex-start;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
  }

  .nav-menu.mobile-open {
    display: flex;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 960px) {
  .nav-btn-signin {
    display: none;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .checkpoints-grid {
    grid-template-columns: 1fr;
  }

  .mcp-layout {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  :root {
    --cp-gutter: 16px;
  }

  .hero-section {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .hero-title {
    font-size: 48px;
    line-height: 52px;
    letter-spacing: -1.6px;
  }

  .hero-subtitle {
    font-size: 18px;
    line-height: 28px;
    letter-spacing: -0.1px;
  }

  .section-title,
  .cta-title {
    font-size: 30px;
    line-height: 36px;
    letter-spacing: -1px;
  }

  .section {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .showcase-band {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .cta-section {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .cta-card {
    padding: 24px;
  }

  .card {
    padding: 24px;
  }

  .steps-grid,
  .checks-grid,
  .modes-grid,
  .checkpoints-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .example-selector-row {
    grid-template-columns: 1fr;
  }

  .example-counts-row {
    width: 100%;
  }

  .output-window-topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .window-subtabs {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .nav-btn-cta {
    display: none;
  }

  .hero-trust-bar {
    gap: var(--cp-space-4);
  }

  /* Lighter mobile version: smaller blur for smoother frames */
  .hero-gradient-mesh {
    filter: blur(50px);
    height: 460px;
  }
}

@media (max-width: 400px) {
  .hero-title {
    font-size: clamp(32px, 8.8vw, 40px);
    line-height: 1.15;
    letter-spacing: -1.2px;
  }
}

/* ==========================================================================
   Skip link (hidden until keyboard focus)
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -120px;
  left: var(--cp-gutter);
  background-color: var(--cp-ink);
  color: var(--cp-on-ink);
  padding: var(--cp-space-2) var(--cp-space-4);
  border-radius: var(--cp-radius-sm);
  font-family: var(--cp-font-sans);
  font-size: 14px;
  font-weight: 500;
  z-index: 1000;
  transition: top var(--cp-dur) var(--cp-ease);
}

.skip-link:focus {
  top: var(--cp-space-4);
}

/* ==========================================================================
   Glass cards: every card on the page is semi transparent with a soft blur,
   so the colored washes behind the sections show through.
   ========================================================================== */

:root {
  --cp-glass-fill: rgba(17, 17, 17, 0.55);
  --cp-glass-fill-hover: rgba(17, 17, 17, 0.7);
}

@supports (background-color: color-mix(in srgb, white 50%, transparent)) {
  :root {
    --cp-glass-fill: color-mix(in srgb, var(--cp-canvas-soft-2) 55%, transparent);
    --cp-glass-fill-hover: color-mix(in srgb, var(--cp-canvas-soft-2) 72%, transparent);
  }
}

html.light-mode {
  --cp-glass-fill: rgba(255, 255, 255, 0.6);
  --cp-glass-fill-hover: rgba(255, 255, 255, 0.8);
}

@supports (background-color: color-mix(in srgb, white 50%, transparent)) {
  html.light-mode {
    --cp-glass-fill: color-mix(in srgb, var(--cp-canvas) 60%, transparent);
    --cp-glass-fill-hover: color-mix(in srgb, var(--cp-canvas) 80%, transparent);
  }
}

.card,
.step-card,
.checks-grid .check-card,
.checkpoints-grid .checkpoint-card,
.mode-card,
.mcp-diagram-panel,
.pricing-teaser-card,
.cta-card,
.example-question-box,
.output-window {
  background-color: var(--cp-glass-fill);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
}

.step-card:hover,
.checks-grid .check-card:hover,
.checkpoints-grid .checkpoint-card:hover,
.mode-card:hover {
  background-color: var(--cp-glass-fill-hover);
}

/* Trust list sits under the source logos */
.sources-trust-bar {
  margin-top: var(--cp-space-6);
}

/* ==========================================================================
   First screen: headline, buttons, source logos and the check list all fit
   above the fold on a normal desktop window.
   ========================================================================== */

/* hero-section padding handled above */

.sources-marquee-section {
  padding: var(--cp-space-4) 0 var(--cp-space-6) 0;
}

.sources-strip-container {
  gap: var(--cp-space-3);
}

@media (min-width: 961px) {
  .hero-content {
    max-width: 1100px;
  }

  .hero-title {
    width: -moz-fit-content;
    width: fit-content;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--cp-space-4);
  }

  .hero-title-line {
    white-space: nowrap;
  }
}

@media (min-width: 961px) and (max-height: 900px) {
  .hero-title {
    font-size: 64px;
    line-height: 68px;
    letter-spacing: -2.56px;
  }
}

/* ==========================================================================
   One whole hero section: headline, buttons, source logos and check list share
   one continuous gradient background. No band, no boxes, logos in their own colors.
   ========================================================================== */

/* hero-section padding handled above */

/* The glow covers the whole hero, including the logo block */
.hero-gradient-mesh {
  height: 100%;
  min-height: 640px;
  max-height: 960px;
}

.sources-strip-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  margin-top: 72px;
}

.sources-strip-header {
  text-align: center;
}

.sources-strip-container .marquee-label {
  letter-spacing: 0.14em;
}

.sources-list {
  gap: 20px 40px;
  max-width: 980px;
}

.source-tile,
html.light-mode .source-tile {
  background-color: transparent;
  box-shadow: none;
  border-radius: var(--cp-radius-sm);
  padding: 4px 8px;
  opacity: 1;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--cp-dur) var(--cp-ease),
              background-color var(--cp-dur) var(--cp-ease),
              opacity var(--cp-dur) var(--cp-ease);
}

.source-tile:hover {
  background-color: rgba(255, 255, 255, 0.08);
  box-shadow: none;
  transform: translateY(-2px);
}

html.light-mode .source-tile:hover {
  background-color: rgba(0, 0, 0, 0.05);
  box-shadow: none;
  transform: translateY(-2px);
}

.source-tile:active {
  background-color: rgba(255, 255, 255, 0.12);
  transform: translateY(0) scale(0.98);
}

html.light-mode .source-tile:active {
  background-color: rgba(0, 0, 0, 0.08);
  transform: translateY(0) scale(0.98);
}

.source-tile:focus-visible {
  outline: 2px solid var(--cp-ink);
  outline-offset: 2px;
}

.source-tile:focus:not(:focus-visible) {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  .source-tile,
  .source-tile:hover,
  .source-tile:active {
    transform: none !important;
    transition: none !important;
  }
}

.source-logo {
  height: 30px;
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.28));
}

html.light-mode .source-logo {
  filter: none;
}

.source-tile-text {
  color: var(--cp-ink);
  font-size: 16px;
  height: 30px;
}

.sources-trust-bar {
  margin-top: 4px;
  gap: 12px 36px;
}

.sources-note {
  margin-top: 4px;
}

/* floating-card-3 handled above */

@media (max-width: 600px) {
  .hero-section {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .sources-strip-container {
    margin-top: 48px;
    gap: 20px;
  }

  .sources-list {
    gap: 16px 24px;
  }

  .source-logo {
    height: 24px;
  }

  .source-tile-text {
    height: 24px;
    font-size: 14px;
  }
}

/* No black strip at the bottom of the hero: the blurred glow is taller than the hero
   (the hero clips it), so its own faded edge falls outside the visible area. */
.hero-gradient-mesh {
  top: -140px;
  height: calc(100% + 280px);
  min-height: 0;
  max-height: none;
}

/* Soft hand-off from the hero gradient into the next section */
.hero-section::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 110px;
  background: linear-gradient(to bottom, transparent, var(--cp-canvas));
  pointer-events: none;
  z-index: 0;
}

/* The page can never scroll sideways, so the hero always stays centered in the window */
html,
body {
  overflow-x: clip;
  max-width: 100%;
}

/* ==========================================================================
   Audit fixes and brand logos
   ========================================================================== */

/* Mode cards: the tagline lines up with the title (it was centered) */
.mode-card .mode-tagline {
  text-align: left;
  margin: 8px 0 0 0;
  font-size: 15px;
  max-width: none;
}

/* Bigger tap targets */
.window-subtab-btn {
  min-height: 36px;
  padding: 6px 14px;
}

.mcp-text-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 8px;
}

/* Logo inside buttons */
.btn-logo {
  width: 18px;
  height: 18px;
  flex: none;
  fill: currentColor;
  transition: transform 220ms var(--cp-ease);
}

/* White buttons (the MCP buttons): lift, glow, arrow and logo move on hover */
.btn-white {
  transition: transform 200ms var(--cp-ease),
              box-shadow 200ms var(--cp-ease),
              background-color 200ms var(--cp-ease);
}

.btn-white:hover,
.btn-white:focus-visible {
  background-color: #ffffff;
  color: #171717;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(0, 112, 243, 0.45), 0 2px 8px rgba(238, 0, 0, 0.18);
}

.btn-white:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 4px 14px rgba(0, 112, 243, 0.3);
}

.btn-white:hover .btn-logo,
.btn-white:focus-visible .btn-logo {
  transform: scale(1.12) rotate(-6deg);
}

.btn-white:hover > svg:last-child:not(.btn-logo),
.btn-white:focus-visible > svg:last-child:not(.btn-logo) {
  transform: translateX(3px);
}

.btn-white > svg:last-child:not(.btn-logo) {
  transition: transform 220ms var(--cp-ease);
}

.btn-secondary .btn-logo {
  fill: currentColor;
}

@media (prefers-reduced-motion: reduce) {
  .btn-white,
  .btn-white:hover,
  .btn-white:focus-visible,
  .btn-white:hover .btn-logo,
  .btn-white:hover > svg:last-child {
    transform: none;
  }
}

/* Claude + MCP logos above the MCP section title */
.mcp-logos {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.mcp-logo-claude {
  fill: #d97757;
}

.mcp-logo-mcp {
  fill: var(--cp-ink);
}

.mcp-logos-plus {
  font-family: var(--cp-font-mono);
  font-size: 18px;
  color: var(--cp-muted);
}

.mcp-claude-mark {
  color: #d97757;
  fill: #d97757;
}

.mcp-arrow-logo {
  fill: var(--cp-ink);
  color: var(--cp-ink);
}

/* Footer links with a logo */
.cp-footer-link-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cp-footer-link-logo svg,
.cp-footer-link-logo img {
  width: 16px;
  height: 16px;
  flex: none;
  object-fit: contain;
}

.cp-footer-link-logo svg {
  fill: currentColor;
}

/* Live GitHub star box, top right of the hero */
.hero-gh {
  position: absolute;
  top: 20px;
  right: 24px;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--cp-radius-pill);
  background-color: rgba(10, 10, 10, 0.5);
  background-color: color-mix(in srgb, var(--cp-canvas) 50%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
  color: var(--cp-ink);
  font-family: var(--cp-font-sans);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  transition: transform 200ms var(--cp-ease), box-shadow 200ms var(--cp-ease);
}

.hero-gh:hover,
.hero-gh:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(0, 112, 243, 0.35);
}

.hero-gh-logo {
  fill: currentColor;
  flex: none;
}

.hero-gh-star {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}

html.light-mode .hero-gh {
  background-color: rgba(255, 255, 255, 0.7);
  background-color: color-mix(in srgb, var(--cp-canvas) 70%, transparent);
}

@media (max-width: 600px) {
  .hero-gh {
    top: 12px;
    right: 12px;
  }
}

/* Example window tabs wrap on narrow phones instead of running off the screen */
.output-window-topbar {
  flex-wrap: wrap;
  row-gap: 8px;
}

.window-subtabs {
  flex-wrap: wrap;
  max-width: 100%;
}

.window-subtab-btn {
  white-space: nowrap;
}

/* ==========================================================================
   Example section: minimal, with an expandable output window
   ========================================================================== */

.showcase-band .section-header {
  margin-bottom: 40px;
}

.showcase-band .section-title {
  font-size: 36px;
  line-height: 40px;
  letter-spacing: -1.2px;
}

.showcase-band .section-desc {
  font-size: 16px;
  line-height: 24px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  color: var(--cp-muted);
}

/* Example picker: three small text pills, no cards */
.example-selector-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin: 0 auto 32px auto;
}

.example-select-btn {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 16px;
  border-radius: var(--cp-radius-pill);
  background-color: transparent;
  box-shadow: none;
  color: var(--cp-muted);
  transform: none;
}

.example-select-btn:hover {
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--cp-ink);
  transform: none;
}

.example-select-btn[data-state="active"],
.example-select-btn.active {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--cp-ink);
}

html.light-mode .example-select-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

html.light-mode .example-select-btn[data-state="active"],
html.light-mode .example-select-btn.active {
  background-color: rgba(0, 0, 0, 0.08);
}

.example-select-title {
  font-size: 14px;
  font-weight: 500;
  color: inherit;
}

.example-select-sub {
  display: none;
}

/* Question and counts: plain centered text */
.example-question-box {
  background: none;
  background-color: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 14px;
  margin: 0 auto 36px auto;
  max-width: 760px;
}

.example-question-left {
  text-align: center;
}

.example-label {
  display: none;
}

.example-question-text {
  font-size: 20px;
  line-height: 28px;
  font-weight: 500;
  color: var(--cp-ink);
  margin: 0;
}

.example-counts-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 4px 0;
}

.metric-chip {
  background: none;
  background-color: transparent;
  box-shadow: none;
  padding: 0;
  border-radius: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--cp-muted);
}

.metric-chip + .metric-chip::before {
  content: '\00b7';
  margin: 0 14px;
  color: var(--cp-muted);
}

/* The output window: quiet card, tabs centered, no window dots */
.output-window {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 20px;
  box-shadow: none;
  position: relative;
}

.output-window .window-dots {
  display: none;
}

.output-window-topbar {
  background: transparent;
  justify-content: center;
  padding: 14px 16px 6px 16px;
}

.window-subtabs {
  margin: 0 auto;
  justify-content: center;
}

/* Expandable body: shows the top of the output with a fade, opens to the full text */
.output-window .output-window-body {
  position: relative;
  overflow: hidden;
  transition: max-height 450ms var(--cp-ease);
}

.output-window[data-expanded="false"] .output-window-body {
  max-height: 380px;
}

.output-window[data-expanded="false"] .output-window-body::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.94));
}

html.light-mode .output-window[data-expanded="false"] .output-window-body::after {
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.95));
}

.output-window[data-expanded="true"] .output-window-body {
  max-height: none;
}

.output-window[data-short="true"] .output-window-body {
  max-height: none !important;
}

.output-window[data-short="true"] .output-window-body::after,
.output-window[data-short="true"] .output-expand-wrap {
  display: none;
}

.output-expand-wrap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  display: flex;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
}

.output-window[data-expanded="true"] .output-expand-wrap {
  position: static;
  padding: 8px 0 22px 0;
}

.output-expand {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 18px;
  border-radius: var(--cp-radius-pill);
  background-color: #ffffff;
  color: #171717;
  font-family: var(--cp-font-sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 200ms var(--cp-ease), box-shadow 200ms var(--cp-ease);
}

.output-expand:hover,
.output-expand:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 112, 243, 0.4);
}

.output-expand svg {
  transition: transform 300ms var(--cp-ease);
}

.output-window[data-expanded="true"] .output-expand svg {
  transform: rotate(180deg);
}

html.light-mode .output-expand {
  background-color: #171717;
  color: #ffffff;
}

@media (prefers-reduced-motion: reduce) {
  .output-window .output-window-body,
  .output-expand,
  .output-expand svg {
    transition: none;
  }

  .output-expand:hover {
    transform: none;
  }
}

.showcase-cta-bar {
  margin-top: 32px;
}

/* Expand button: plain text with a chevron, no pill */
.output-expand,
html.light-mode .output-expand {
  background-color: transparent;
  color: var(--cp-ink);
  height: 40px;
  padding: 0 10px;
  border-radius: 0;
  box-shadow: none;
  font-size: 15px;
  text-shadow: 0 0 14px rgba(0, 0, 0, 0.9);
}

html.light-mode .output-expand {
  text-shadow: 0 0 14px rgba(255, 255, 255, 0.9);
}

.output-expand:hover,
.output-expand:focus-visible {
  transform: none;
  box-shadow: none;
  color: var(--cp-ink);
  text-decoration: underline;
  text-underline-offset: 5px;
}

.output-expand svg {
  transition: transform 300ms var(--cp-ease);
}

.output-expand:hover svg {
  transform: translateY(2px);
}

.output-window[data-expanded="true"] .output-expand:hover svg {
  transform: rotate(180deg) translateY(2px);
}

/* Reset the browser's default button border (it showed as a square frame around the text) */
.output-expand {
  border: 0;
  outline-offset: 4px;
}

/* ==========================================================================
   MCP section: full width, technical architecture diagram
   ========================================================================== */

.mcp-layout {
  grid-template-columns: minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.mcp-text {
  max-width: none;
}

.mcp-subtitle {
  max-width: 640px;
}

@media (min-width: 800px) {
  .mcp-feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 48px;
  }
}

.mcp-honesty {
  max-width: 640px;
}

.mcp-diagram-panel {
  padding: 28px;
  overflow-x: auto;
  overflow-y: hidden;
}

.mcp-diagram {
  min-width: 880px;
}

.mcpd-boundary {
  fill: none;
  stroke: var(--cp-muted);
  stroke-width: 1;
  stroke-dasharray: 6 7;
  opacity: 0.45;
}

.mcpd-box {
  fill: var(--cp-canvas-soft-2);
  stroke: none;
}

.mcpd-box-main {
  fill: color-mix(in srgb, var(--cp-canvas-soft-2) 88%, var(--cp-ink) 12%);
}

.mcpd-ext {
  fill: none;
  stroke: var(--cp-muted);
  stroke-width: 1;
  stroke-dasharray: 5 6;
  opacity: 0.8;
}

.mcpd-chip {
  fill: color-mix(in srgb, var(--cp-ink) 8%, transparent);
  stroke: none;
}

.mcpd-chip-blue {
  fill: color-mix(in srgb, var(--cp-link) 18%, transparent);
}

.mcpd-chip-text {
  font-family: var(--cp-font-sans);
  font-size: 12.5px;
  font-weight: 500;
  fill: var(--cp-ink);
}

.mcpd-chip-text-blue {
  fill: var(--cp-link);
}

.mcpd-title {
  font-family: var(--cp-font-sans);
  font-size: 17px;
  font-weight: 600;
  fill: var(--cp-ink);
}

.mcpd-title-s {
  font-size: 15px;
}

.mcpd-sub {
  font-family: var(--cp-font-sans);
  font-size: 12.5px;
  fill: var(--cp-muted);
}

.mcpd-item {
  font-family: var(--cp-font-sans);
  font-size: 12.5px;
  fill: var(--cp-body);
}

.mcpd-mono {
  font-family: var(--cp-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  fill: var(--cp-muted);
}

.mcpd-mono-s {
  font-size: 10.5px;
  letter-spacing: 0.02em;
}

.mcpd-dot {
  fill: var(--cp-link);
}

.mcpd-icon {
  fill: none;
  stroke: var(--cp-ink);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.mcp-arrow-dashed {
  stroke-dasharray: 5 5;
}

.mcp-diagram .mcp-arrow-logo {
  fill: var(--cp-ink);
}

/* MCP section: diagram sits beside the points again on desktop and tablet-wide screens */
.mcp-feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--cp-space-3);
}

.mcp-diagram {
  min-width: 0;
}

.mcp-diagram-panel {
  padding: 20px;
  overflow: visible;
}

@media (min-width: 961px) {
  .mcp-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: center;
  }
}

/* ==========================================================================
   Mobile fixes
   ========================================================================== */

.mcp-diagram-mobile {
  display: none;
}

.mcpd-sub-s {
  font-size: 12px;
}

@media (max-width: 760px) {
  /* The wide diagram would need sideways scrolling, so phones get the stacked version */
  .mcp-diagram-desktop {
    display: none;
  }

  .mcp-diagram-mobile {
    display: block;
    width: 100%;
    min-width: 0;
    height: auto;
  }

  .mcp-diagram-panel {
    padding: 14px 10px;
    overflow: visible;
  }

  /* Example counts: no stray dot at the start of a wrapped line */
  .example-counts-row {
    gap: 6px 20px;
  }

  .metric-chip + .metric-chip::before {
    display: none;
  }

  .example-question-text {
    font-size: 18px;
    line-height: 26px;
  }

  /* Bigger touch targets for the header icons */
  .nav-icon-btn,
  .theme-toggle-btn,
  .mobile-nav-toggle {
    width: 44px;
    height: 44px;
  }

  .hero-btn-group {
    gap: 12px;
  }

  .hero-btn-group .btn {
    min-height: 44px;
  }

  .mcp-actions {
    flex-wrap: wrap;
    gap: 8px 16px;
  }
}