/* ==========================================================================
   Andrew Martin — Personal Brand Website
   Production CSS
   Aesthetics: Asian-inspired sense of place (Ma, Feng Shui, Kanso, Fukinsei).
   See AGENT-PROMPT-ASIAN-AESTHETICS-SENSE-OF-PLACE.md
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts
   -------------------------------------------------------------------------- */
/* Fraunces: headings (editorial serif) — IBM Plex Sans: body — JetBrains Mono: code/stats */

/* --------------------------------------------------------------------------
   CSS Custom Properties — Light Theme (default)
   Asian-inspired: Water + Metal (blues/grays), Earth (warm neutrals). Calm, understated.
   -------------------------------------------------------------------------- */
:root {
  /* Palette — Muted, calm clarity; accent suggests warmth without shouting */
  --color-bg: #f6f5f3;
  --color-bg-secondary: #eeebe8;
  --color-bg-tertiary: #e5e2de;
  --color-surface: #ffffff;
  --color-text: #1c1917;
  --color-text-secondary: #44403c;
  --color-text-muted: #78716c;
  --color-primary: #1e3a5f;
  --color-primary-light: #2d5a8a;
  --color-primary-hover: #0f2744;
  --color-accent: #9a4a1a;
  --color-accent-light: #b45309;
  --color-success: #0d9488;
  --color-warm: #a16207;
  --color-wood: #4a6b5a;
  --color-border: #e7e5e4;
  --color-border-light: #ece9e6;
  --gradient-primary: linear-gradient(135deg, #1e3a5f 0%, #2d5a8a 50%, #0f2744 100%);
  --gradient-accent: linear-gradient(135deg, #9a4a1a 0%, #b45309 100%);

  /* Shadows — Restraint: softer, less present */
  --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.06);
  --shadow-lg: 0 8px 28px rgba(28, 25, 23, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(28, 25, 23, 0.08);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 100px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Z-index layers */
  --z-nav: 100;
  --z-overlay: 200;
  --z-modal: 300;
}

/* --------------------------------------------------------------------------
   Dark Theme Overrides — Rich charcoal, same accent pop
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --color-bg: #0c0d0e;
  --color-bg-secondary: #141618;
  --color-bg-tertiary: #1c1e21;
  --color-surface: #181a1d;
  --color-text: #f5f5f4;
  --color-text-secondary: #a8a29e;
  --color-text-muted: #78716c;
  --color-primary: #60a5fa;
  --color-primary-light: #93c5fd;
  --color-primary-hover: #3b82f6;
  --color-success: #2dd4bf;
  --color-wood: #6b9b82;
  --color-border: #27272a;
  --color-border-light: #3f3f46;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 20px rgba(0, 0, 0, 0.35);
}

/* --------------------------------------------------------------------------
   Skip Link (Accessibility)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 500;
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 0;
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Sense of place: one calm band (About = "who I am" as distinct zone) */
.about {
  background: linear-gradient(180deg, transparent 0%, rgba(30, 58, 95, 0.02) 15%, rgba(30, 58, 95, 0.02) 85%, transparent 100%);
}

[data-theme="dark"] .about {
  background: linear-gradient(180deg, transparent 0%, rgba(96, 165, 250, 0.03) 15%, rgba(96, 165, 250, 0.03) 85%, transparent 100%);
}

img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* --------------------------------------------------------------------------
   Typography — Fraunces for display, IBM Plex for body
   -------------------------------------------------------------------------- */
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.hero-tagline .text-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-text);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.875rem;
}

.stat-value,
.stat-label,
.audit-trail {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

/* --------------------------------------------------------------------------
   Layout — Container & Section (Ma: generous space, rest zones)
   -------------------------------------------------------------------------- */
.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

section,
.section {
  padding: 7rem 0;
  position: relative;
}

/* Vertical rhythm: subtle section break (Ma) — rest between chapters */
.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3rem;
  height: 1px;
  background: var(--color-border);
  opacity: 0.5;
}

.section-header {
  margin-bottom: 4rem;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .nav {
  background: color-mix(in srgb, var(--color-bg) 94%, transparent);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 24px;
  cursor: pointer;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav panel — the .nav-links list becomes a fixed overlay on mobile when .open */
@media (max-width: 768px) {
  .nav-links.open {
    display: flex !important;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-overlay);
    background: var(--color-bg);
    padding: 2rem;
    flex-direction: column;
    gap: 1.5rem;
  }

  .nav-links.open a {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border-light);
  }
}

/* --------------------------------------------------------------------------
   Theme Toggle
   -------------------------------------------------------------------------- */
.theme-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 28px;
  border-radius: var(--radius-pill);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.theme-toggle:hover {
  border-color: var(--color-accent);
}

.theme-toggle-indicator {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent);
  transition: transform var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .theme-toggle-indicator {
  transform: translateX(24px);
}

.theme-toggle-icon {
  font-size: 0.7rem;
  color: #fff;
  line-height: 1;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  color: #ffffff;
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}


.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: translateY(-1px);
  border-color: var(--color-primary);
}


.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

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

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border);
}

/* --------------------------------------------------------------------------
   Focus States (Accessibility)
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* --------------------------------------------------------------------------
   Scroll Reveal
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: none;
}

/* Staggered children */
.reveal-stagger > .reveal:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger > .reveal:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger > .reveal:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger > .reveal:nth-child(8) { transition-delay: 560ms; }

/* ==========================================================================
   SECTION STYLES
   ========================================================================== */

/* --------------------------------------------------------------------------
   Hero — Ma (breathing room); Fukinsei (subtle asymmetry: focal point slightly left)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 12rem 0 10rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 40% 0%, rgba(30, 58, 95, 0.04) 0%, transparent 55%),
    radial-gradient(ellipse 50% 30% at 75% 25%, rgba(154, 74, 26, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

[data-theme="dark"] .hero::before {
  background:
    radial-gradient(ellipse 80% 50% at 40% 0%, rgba(96, 165, 250, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse 50% 30% at 75% 25%, rgba(234, 88, 12, 0.04) 0%, transparent 50%);
}

.hero-content {
  max-width: 720px;
  margin: 0 auto;
  margin-left: 8%;
  margin-right: auto;
  padding: 0 2.5rem;
  text-align: left;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  padding: 0.4rem 1rem;
  background: rgba(154, 74, 26, 0.07);
  border: 1px solid rgba(154, 74, 26, 0.15);
  border-radius: var(--radius-pill);
}

[data-theme="dark"] .hero-badge {
  color: var(--color-accent-light);
  background: rgba(234, 88, 12, 0.1);
  border-color: rgba(234, 88, 12, 0.2);
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.75vw, 1.5rem);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-top: 1.75rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.75;
}

.hero-description__second {
  display: block;
  margin-top: 0.6em;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 4.5rem;
  align-items: start;
}

.about-text p {
  color: var(--color-text-secondary);
  margin-bottom: 1.75rem;
  line-height: 1.8;
}

.about-text p:last-child {
  margin-bottom: 0;
}

/* Wood element: hint of growth/grounding on About label */
.about .section-label {
  color: var(--color-wood);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.about-stat {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}

.about-stat .stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-primary);
  display: block;
}

.about-stat .stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  display: block;
}

/* --------------------------------------------------------------------------
   Superpower — Card Grid
   -------------------------------------------------------------------------- */
/* Fukinsei: uneven but balanced columns (row 2: narrower left, wider right) */
.superpower-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 2rem;
}

.superpower-card {
  background: var(--color-surface);
  border: none;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.superpower-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card-hover);
}

.superpower-card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.92) 0%, rgba(45, 90, 138, 0.88) 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .superpower-card.featured {
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.6) 0%, rgba(37, 99, 235, 0.4) 100%);
  border-color: rgba(255, 255, 255, 0.06);
}

.superpower-card.featured:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.superpower-card .card-icon {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  opacity: 0.75;
}

.superpower-card.featured .card-icon {
  opacity: 0.9;
}

.superpower-card .card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.superpower-card .card-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.superpower-card.featured .card-desc {
  color: rgba(255, 255, 255, 0.85);
}

/* --------------------------------------------------------------------------
   Demo Section — Tabs & Card-based Demos
   -------------------------------------------------------------------------- */
.demo-section {
  background: var(--color-bg-secondary);
  padding-top: 8rem;
  padding-bottom: 8rem;
}

.demo-section .container > .section-header {
  margin-bottom: 2rem;
}

.demo-section .demo-intro {
  margin-bottom: 2.5rem;
}

.demo-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.demo-tab {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  background: transparent;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  text-decoration: none;
}

.demo-tab:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

/* Active tab style — JS-driven .active class (restrained) */
.demo-tab.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: transparent;
}

.demo-panel {
  display: none;
}

.demo-panel {
  padding-top: 0.5rem;
}

.demo-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

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

/* --------------------------------------------------------------------------
   Pipeline Visualizer
   -------------------------------------------------------------------------- */
.pipeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Connecting line between agents */
.pipeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 2px;
  border-left: 2px dashed var(--color-border);
}

.pipeline-step {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem 0;
}

/* Agent card */
.pipeline-card {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.pipeline-step.human .pipeline-card {
  border-color: var(--color-warm);
  border-width: 2px;
  background: rgba(180, 83, 9, 0.03);
}

[data-theme="dark"] .pipeline-step.human .pipeline-card {
  background: rgba(180, 83, 9, 0.06);
}

.pipeline-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.pipeline-card-name {
  font-weight: 600;
  font-size: 1rem;
}

/* "Run Analysis" button */
.btn-run-analysis {
  background: var(--gradient-primary);
  color: #ffffff;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-run-analysis:hover {
  opacity: 0.92;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-run-analysis + .btn-secondary {
  margin-left: 0.75rem;
}

/* Audit trail */
.audit-trail {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  line-height: 1.8;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-height: 300px;
  overflow-y: auto;
}

.audit-trail-line {
  opacity: 0;
  animation: auditLineAppear 0.3s ease forwards;
}


@keyframes auditLineAppear {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* --------------------------------------------------------------------------
   Impact — Metric Cards
   -------------------------------------------------------------------------- */
/* Bridge lines: hand off from previous section (narrative throughline) */
.section-bridge {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  line-height: 1.6;
  font-weight: 500;
}

.impact-intro {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  line-height: 1.7;
}

/* Fukinsei: uneven columns — centre card slightly dominant */
.impact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.2fr 0.9fr;
  gap: 2rem;
}

.impact-card {
  background: var(--color-surface);
  border: none;
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.impact-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card-hover);
}

.impact-metric {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  line-height: 1.2;
}

.impact-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

.impact-context {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   Journey — Vertical Timeline
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 11px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2.5rem;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  transition: border-color var(--transition-base);
}

.timeline-dot::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.5;
}

.timeline-item:first-child .timeline-dot {
  border-color: var(--color-primary);
}

.timeline-item:first-child .timeline-dot::after {
  opacity: 1;
}

.timeline-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-weight: 600;
  font-size: 1.0625rem;
  margin-bottom: 0.25rem;
}

.timeline-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.timeline-secondary {
  display: none;
}

.timeline.expanded .timeline-secondary {
  display: block;
}

.journey-toggle {
  margin-top: 1rem;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact {
  text-align: center;
}

.contact-text {
  max-width: 500px;
  margin: 0 auto 2.5rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.contact-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  padding: 3rem 0;
  padding-bottom: calc(3rem + env(safe-area-inset-bottom, 0));
  border-top: 1px solid var(--color-border-light);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-cta-text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.footer-cta-btn {
  min-height: 44px;
  min-width: 140px;
  padding: 0.75rem 1.5rem;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0;
}

/* Scroll progress bar — restrained (Kanso): thin, muted */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: rgba(30, 58, 95, 0.25);
  z-index: 1001;
  transition: width 0.05s linear;
}

[data-theme="dark"] .scroll-progress {
  background: rgba(96, 165, 250, 0.35);
}

/* Hero CTA hierarchy - primary button prominent */
.hero-ctas .btn-primary {
  font-size: 1rem;
  padding: 0.875rem 1.75rem;
  min-height: 48px;
  min-width: 180px;
}

.hero-ctas .btn-secondary {
  min-height: 48px;
  padding: 0.875rem 1.5rem;
}

/* Demo section intro — breath between paragraphs if multiple */
.demo-section .demo-intro {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  max-width: 640px;
  margin-left: auto;
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Prompt refinement demo (PC conversational panels + drag-and-drop)
   -------------------------------------------------------------------------- */
.prompt-demo-inline {
  margin-top: 1.5rem;
  position: relative;
}

/* First-time instructional overlay */
.prompt-demo-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  border-radius: var(--radius-md);
}

.prompt-demo-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.prompt-demo-overlay-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  max-width: 360px;
  margin: 1rem;
}

.prompt-demo-overlay-content p {
  margin: 0 0 0.5rem;
  color: var(--color-text);
  font-size: 0.95rem;
}

.prompt-demo-overlay-mobile {
  font-size: 0.85rem !important;
  color: var(--color-text-muted) !important;
}

.prompt-demo-overlay-dismiss {
  margin-top: 1rem;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
}

.prompt-demo-overlay-dismiss:hover {
  background: var(--color-primary-hover);
}

.prompt-demo-inline .prompt-demo-controls {
  text-align: center;
  margin-bottom: 1.5rem;
}

.prompt-demo-inline .scenario-selector {
  display: inline-flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.prompt-demo-inline .scenario-btn {
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: all 0.2s;
}

.prompt-demo-inline .scenario-btn:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.prompt-demo-inline .scenario-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Drag source — rough prompt to drag into Stage 1 */
.prompt-demo-inline .drag-source-area {
  text-align: center;
  margin-bottom: 1.25rem;
}

.prompt-demo-inline .drag-source-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.prompt-demo-inline .drag-source-scenario-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  font-style: italic;
}

.prompt-demo-inline .drag-source {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1.25rem;
  background: var(--color-surface);
  border: 2px dashed var(--color-primary);
  border-radius: var(--radius-md);
  cursor: grab;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-primary);
  font-weight: 500;
  transition: border-color 0.2s, box-shadow 0.2s;
  touch-action: manipulation;
}

.prompt-demo-inline .drag-source:hover {
  border-color: var(--color-primary-hover);
  box-shadow: 0 2px 12px rgba(30, 58, 95, 0.15);
}

.prompt-demo-inline .drag-source:active {
  cursor: grabbing;
}

.prompt-demo-inline .drag-source.dragging {
  opacity: 0.6;
}

.prompt-demo-inline .drag-source .drag-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.prompt-demo-inline .drag-source.hidden {
  display: none;
}

.prompt-demo-inline .demo-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 900px) {
  .prompt-demo-inline .demo-stage {
    grid-template-columns: 1fr;
  }
}

.prompt-demo-inline .stage-container {
  position: relative;
}

.prompt-demo-inline .stage-label {
  text-align: center;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.prompt-demo-inline .stage-step {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.prompt-demo-inline .stage-number {
  background: var(--color-primary);
  color: white;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

/* PC-style chat panels */
.prompt-demo-inline .chat-panel {
  background: #0f0f10;
  border: 1px solid #2c2c2e;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 480px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.prompt-demo-inline .chat-panel-header {
  background: #1a1a1c;
  padding: 12px 16px;
  border-bottom: 1px solid #2c2c2e;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.prompt-demo-inline .chat-panel-header .chat-title {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
}

.prompt-demo-inline .chat-panel-header .chat-subtitle {
  color: #8e8e93;
  font-size: 0.75rem;
}

.prompt-demo-inline .chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.prompt-demo-inline .chat-messages.drop-zone {
  position: relative;
}

.prompt-demo-inline .drop-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6b6b70;
  font-size: 0.9rem;
  pointer-events: none;
  border: 2px dashed #3a3a3e;
  border-radius: var(--radius-sm);
  margin: 8px;
  transition: border-color 0.2s, background 0.2s;
}

.prompt-demo-inline .chat-messages.has-messages .drop-hint {
  display: none;
}

.prompt-demo-inline .chat-messages.drag-over .drop-hint {
  border-color: var(--color-primary);
  background: rgba(30, 58, 95, 0.1);
}

.prompt-demo-inline .chat-messages.drop-landed {
  animation: dropLanded 0.4s ease-out;
}

@keyframes dropLanded {
  0% { transform: scale(1); }
  50% { transform: scale(1.01); }
  100% { transform: scale(1); }
}

.prompt-demo-inline .message {
  display: flex;
  gap: 8px;
  animation: messageSlide 0.3s ease-out;
}

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

.prompt-demo-inline .message.user { flex-direction: row-reverse; }

.prompt-demo-inline .message-bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 0.85rem;
  line-height: 1.45;
}

.prompt-demo-inline .message.user .message-bubble {
  background: var(--color-primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.prompt-demo-inline .message.ai .message-bubble {
  background: #2c2c2e;
  color: white;
  border-bottom-left-radius: 4px;
}

.prompt-demo-inline .message-bubble.typing {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 14px;
}

.prompt-demo-inline .typing-dot {
  width: 6px;
  height: 6px;
  background: #8e8e93;
  border-radius: 50%;
  animation: typingBounce 1.4s infinite;
}

.prompt-demo-inline .typing-dot:nth-child(2) { animation-delay: 0.2s; }
.prompt-demo-inline .typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-6px); }
}

.prompt-demo-inline .chat-input {
  background: rgba(28, 28, 30, 0.95);
  padding: 10px;
  border-top: 1px solid #2c2c2e;
}

.prompt-demo-inline .input-wrapper {
  background: #2c2c2e;
  border-radius: 18px;
  padding: 6px 14px;
}

.prompt-demo-inline .input-wrapper input {
  background: none;
  border: none;
  color: white;
  font-size: 0.85rem;
  outline: none;
}

.prompt-demo-inline .copy-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-accent);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  z-index: 20;
}

.prompt-demo-inline .copy-indicator.visible { opacity: 1; }

.prompt-demo-inline .play-btn {
  padding: 0.75rem 2rem;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.prompt-demo-inline .play-btn:hover:not(:disabled) {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.prompt-demo-inline .play-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.prompt-demo-inline .info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1.5rem;
}

.prompt-demo-inline .info-card h3 {
  font-family: var(--font-display);
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.prompt-demo-inline .info-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.prompt-demo-inline .info-card p:last-child {
  margin-bottom: 0;
}

.prompt-demo-inline .structured-label {
  display: inline-block;
  background: rgba(96, 165, 250, 0.2);
  color: #93c5fd;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.prompt-demo-inline .message-bubble pre {
  white-space: pre-wrap;
  font-family: inherit;
  margin: 0;
}

.prompt-demo-inline .message-bubble.draggable-refined {
  cursor: grab;
  border: 1px solid rgba(96, 165, 250, 0.3);
  touch-action: manipulation;
}

.prompt-demo-inline .message-bubble.draggable-refined:active {
  cursor: grabbing;
}

.prompt-demo-inline .message-bubble.draggable-refined.dragging-lift {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

@media (hover: none) {
  .prompt-demo-inline .drag-hint {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Walkthrough (click-through demos)
   -------------------------------------------------------------------------- */
.walkthrough {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.walkthrough-step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.walkthrough-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.5rem;
}

.walkthrough-desc {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.walkthrough-desc:last-child {
  margin-bottom: 0;
}

.assessment-samples {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.assessment-sample {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.assessment-sample-severity {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-right: 0.5rem;
}

.severity-critical {
  background: rgba(220, 38, 38, 0.15);
  color: #dc2626;
}

.severity-high {
  background: rgba(234, 88, 12, 0.15);
  color: #ea580c;
}

.severity-medium {
  background: rgba(202, 138, 4, 0.15);
  color: #ca8a04;
}

.severity-low {
  background: rgba(37, 99, 235, 0.15);
  color: #2563eb;
}

.assessment-sample-remediation {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.assessment-summary-inline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.assessment-summary-inline > div {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.assessment-summary-inline > div:last-child {
  border-bottom: none;
}

.assessment-summary-inline > div span:first-child {
  color: var(--color-text-secondary);
}

.assessment-summary-inline > div span:last-child {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Nav Actions (theme toggle + hamburger container)
   -------------------------------------------------------------------------- */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   Timeline Current Entry
   -------------------------------------------------------------------------- */
.timeline-item.current .timeline-dot {
  border-color: var(--color-primary);
  background: var(--color-primary);
}

.timeline-item.current .timeline-dot::after {
  background: #ffffff;
  opacity: 1;
}

.timeline-item.current .timeline-title {
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Audit Trail Title
   -------------------------------------------------------------------------- */
.audit-trail h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

/* --------------------------------------------------------------------------
   Pipeline Decisions (human checkpoint buttons)
   -------------------------------------------------------------------------- */
.pipeline-decisions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.pipeline-decisions .btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pipeline-decisions .btn:hover {
  border-color: var(--color-warm);
  background: rgba(180, 83, 9, 0.05);
}

/* --------------------------------------------------------------------------
   Reliability Paradox Calculator
   -------------------------------------------------------------------------- */
.reliability-calc {
  max-width: 100%;
}

.reliability-header {
  margin-bottom: 2rem;
}

.reliability-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.reliability-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 600px;
}

/* Hook stat — the 5-second punchline */
.reliability-hook {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--color-surface);
  border-left: 4px solid var(--color-warm);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.reliability-hook-stat {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  line-height: 1;
  color: var(--color-warm);
  flex-shrink: 0;
}

.reliability-hook-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.reliability-hook-text strong {
  color: var(--color-text);
  font-weight: 600;
}

/* Slider */
.reliability-slider-group {
  margin-bottom: 2.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

.reliability-slider-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.reliability-slider-value {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
}

.reliability-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--color-bg-tertiary);
  outline: none;
  cursor: pointer;
}

.reliability-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.reliability-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: var(--shadow-md);
}

.reliability-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.reliability-slider:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}

.reliability-slider-range {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Agent Chain */
.reliability-agent-chain {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0;
  margin-bottom: 0.75rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.reliability-agent-chain::-webkit-scrollbar {
  height: 4px;
}

.reliability-agent-chain::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.reliability-agent-card {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 110px;
  padding: 0.75rem 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition-base);
  animation: agentAppear 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes agentAppear {
  from { opacity: 0; transform: scale(0.85) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.reliability-agent-card .agent-number {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.reliability-agent-card .agent-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.reliability-agent-card .agent-stats {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  margin-top: 0.375rem;
}

.reliability-agent-arrow {
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1;
}

/* Actions */
.reliability-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.reliability-add-btn {
  min-height: 44px;
}

.reliability-add-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.reliability-reset-btn {
  min-height: 44px;
}

/* Dashboard */
.reliability-dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.reliability-metric {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.reliability-metric-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 0.375rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.reliability-metric-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.reliability-metric.warning {
  border-color: #ca8a04;
  background: rgba(202, 138, 4, 0.05);
}

.reliability-metric.warning .reliability-metric-value {
  color: #ca8a04;
}

[data-theme="dark"] .reliability-metric.warning {
  background: rgba(202, 138, 4, 0.08);
}

.reliability-metric.danger {
  border-color: #dc2626;
  background: rgba(220, 38, 38, 0.05);
}

.reliability-metric.danger .reliability-metric-value {
  color: #dc2626;
}

[data-theme="dark"] .reliability-metric.danger {
  background: rgba(220, 38, 38, 0.08);
}

.reliability-metric.improved {
  border-color: var(--color-success);
  background: rgba(13, 148, 136, 0.05);
}

.reliability-metric.improved .reliability-metric-value {
  color: var(--color-success);
}

[data-theme="dark"] .reliability-metric.improved {
  background: rgba(13, 148, 136, 0.08);
}

/* Warning card */
.reliability-warning {
  background: rgba(220, 38, 38, 0.06);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: #dc2626;
  line-height: 1.6;
}

[data-theme="dark"] .reliability-warning {
  background: rgba(220, 38, 38, 0.1);
  color: #f87171;
}

/* Mitigation Toggle */
.reliability-mitigation-group {
  margin-bottom: 2.5rem;
}

.reliability-mitigation-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  min-height: 44px;
}

.reliability-mitigation-toggle input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.reliability-mitigation-track {
  position: relative;
  width: 48px;
  height: 26px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 13px;
  transition: background var(--transition-base), border-color var(--transition-base);
  flex-shrink: 0;
}

.reliability-mitigation-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--color-text-muted);
  border-radius: 50%;
  transition: transform var(--transition-base), background var(--transition-base);
}

.reliability-mitigation-toggle input:checked + .reliability-mitigation-track {
  background: rgba(13, 148, 136, 0.15);
  border-color: var(--color-success);
}

.reliability-mitigation-toggle input:checked + .reliability-mitigation-track .reliability-mitigation-thumb {
  transform: translateX(22px);
  background: var(--color-success);
}

.reliability-mitigation-toggle input:focus-visible + .reliability-mitigation-track {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.reliability-mitigation-label-text {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
}

.reliability-mitigation-details {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.reliability-mitigation-item {
  background: rgba(13, 148, 136, 0.05);
  border: 1px solid rgba(13, 148, 136, 0.15);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
}

[data-theme="dark"] .reliability-mitigation-item {
  background: rgba(13, 148, 136, 0.08);
}

.reliability-mitigation-name {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-success);
  margin-bottom: 0.25rem;
}

.reliability-mitigation-desc {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Insight Card */
.reliability-insight {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

.reliability-insight h4 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.reliability-insight p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.reliability-insight p:last-child {
  margin-bottom: 0;
}

.reliability-transparency {
  font-size: 0.8125rem !important;
  color: var(--color-text-muted) !important;
}

/* Responsive: Tablet */
@media (max-width: 768px) {
  .reliability-dashboard {
    grid-template-columns: repeat(2, 1fr);
  }

  .reliability-mitigation-details {
    grid-template-columns: 1fr;
  }
}

/* Responsive: Mobile */
@media (max-width: 640px) {
  .reliability-dashboard {
    grid-template-columns: repeat(2, 1fr);
  }

  .reliability-agent-chain {
    gap: 0.375rem;
  }

  .reliability-agent-card {
    width: 95px;
    padding: 0.625rem 0.375rem;
  }

  .reliability-agent-card .agent-name {
    font-size: 0.6875rem;
  }

  .reliability-metric-value {
    font-size: 1.125rem;
  }

  .reliability-hook {
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
    text-align: center;
  }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.text-accent    { color: var(--color-accent); }
.text-muted     { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

.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;
}

/* ==========================================================================
   RESPONSIVE — Tablet (max-width: 768px)
   ========================================================================== */
@media (max-width: 768px) {
  section,
  .section {
    padding: 5rem 0;
  }

  .hero {
    padding: 6rem 0 5rem;
  }

  .hero-content {
    margin-left: auto;
    text-align: center;
  }

  .hero-ctas {
    justify-content: center;
  }

  .section-header {
    margin-bottom: 3rem;
  }

  /* Nav */
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Superpower — single column on tablet */
  .superpower-grid {
    grid-template-columns: 1fr;
  }

  /* Impact */
  .impact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .demo-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

/* ==========================================================================
   RESPONSIVE — Mobile (max-width: 640px)
   ========================================================================== */
@media (max-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }

  section,
  .section {
    padding: 3.5rem 0;
  }

  .hero {
    padding: 5rem 0 4rem;
  }

  .demo-section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-ctas .btn {
    justify-content: center;
  }

  /* About stats */
  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  /* Impact */
  .impact-grid {
    grid-template-columns: 1fr;
  }

  /* Pipeline */
  .pipeline::before {
    left: 18px;
  }

  .pipeline-step {
    gap: 1rem;
  }

  .pipeline-card {
    padding: 1.25rem;
  }

  /* Demo tabs scroll */
  .demo-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .demo-tabs::-webkit-scrollbar {
    display: none;
  }

  .demo-tab {
    flex-shrink: 0;
  }

  /* Contact */
  .contact-links {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-links .btn {
    justify-content: center;
  }

  /* iPhone / touch targets (Apple HIG ≥44×44px) */
  .nav-hamburger {
    min-width: 44px;
    min-height: 44px;
    padding: 10px;
  }

  .theme-toggle {
    min-width: 44px;
    min-height: 44px;
  }

  .btn,
  .demo-tab {
    min-height: 44px;
  }

  .nav-links.open a {
    min-height: 44px;
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
  }

  /* Prevent iOS zoom on input focus (font-size ≥16px) */
  #prompt-input {
    font-size: 16px;
  }

  /* Safe area for fixed nav on iPhone X+ */
  .nav {
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
  }

  /* Cards */
  .card {
    padding: 1.5rem;
  }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */
@media print {
  *,
  *::before,
  *::after {
    background: #ffffff !important;
    color: #000000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  .nav,
  .theme-toggle,
  .nav-hamburger,
  .scroll-progress,
  .footer-cta-text,
  .footer-cta-btn,
  .demo-section,
  .demo-tabs,
  .demo-panel,
  .pipeline,
  .btn-run-analysis,
  .audit-trail,
  .hero-ctas,
  .contact-links .btn-secondary {
    display: none !important;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  section,
  .section {
    padding: 2rem 0;
    page-break-inside: avoid;
  }

  .hero {
    padding: 2rem 0;
  }

  a {
    text-decoration: underline;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    font-weight: normal;
  }

  .card,
  .impact-card,
  .superpower-card {
    border: 1px solid #cccccc !important;
    page-break-inside: avoid;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==========================================================================
   SCROLLBAR STYLING
   ========================================================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) var(--color-bg);
}

/* ==========================================================================
   SELECTION
   ========================================================================== */
::selection {
  background: rgba(30, 58, 95, 0.15);
  color: var(--color-text);
}

[data-theme="dark"] ::selection {
  background: rgba(96, 165, 250, 0.25);
}