/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.9rem  + 0.5vw,  1.125rem);
  --text-lg:   clamp(1.125rem, 0.95rem + 0.85vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1rem    + 1.5vw,  2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'DM Serif Display', 'Georgia', serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* ============================================================
   DARK MODE (Default)
   ============================================================ */
[data-theme="dark"] {
  --color-bg:             #1a1b1e;
  --color-surface:        #212225;
  --color-surface-2:      #2a2b2f;
  --color-surface-3:      #333439;
  --color-divider:        rgba(255,255,255,0.06);
  --color-border:         rgba(255,255,255,0.08);
  --color-border-2:       rgba(255,255,255,0.12);

  --color-text:           #e8e6e3;
  --color-text-muted:     #9b9a97;
  --color-text-faint:     #5e5d5b;

  --color-gold:           #d4a853;
  --color-gold-dim:       rgba(212,168,83,0.12);
  --color-gold-hover:     #e0b85f;

  --color-teal:           #5ba4b5;
  --color-teal-dim:       rgba(91,164,181,0.12);
  --color-teal-hover:     #6db8c9;

  --color-blue:           #5b8fd4;
  --color-blue-dim:       rgba(91,143,212,0.10);

  --color-green:          #6aab5c;
  --color-green-dim:      rgba(106,171,92,0.12);

  --color-amber:          #d4a043;
  --color-amber-dim:      rgba(212,160,67,0.12);

  --color-red:            #c75050;
  --color-red-dim:        rgba(199,80,80,0.12);

  --color-purple:         #9b7ad8;
  --color-purple-dim:     rgba(155,122,216,0.12);

  --color-cyan:           #5bb5b5;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

/* ============================================================
   LIGHT MODE
   ============================================================ */
[data-theme="light"] {
  --color-bg:             #f5f3f0;
  --color-surface:        #ffffff;
  --color-surface-2:      #faf9f7;
  --color-surface-3:      #f0eee9;
  --color-divider:        rgba(0,0,0,0.06);
  --color-border:         rgba(0,0,0,0.08);
  --color-border-2:       rgba(0,0,0,0.12);

  --color-text:           #1d1c1a;
  --color-text-muted:     #6b6a67;
  --color-text-faint:     #a3a19e;

  --color-gold:           #b08830;
  --color-gold-dim:       rgba(176,136,48,0.10);
  --color-gold-hover:     #9a7528;

  --color-teal:           #2b808e;
  --color-teal-dim:       rgba(43,128,142,0.08);
  --color-teal-hover:     #236d79;

  --color-blue:           #3570b2;
  --color-blue-dim:       rgba(53,112,178,0.08);

  --color-green:          #3d7d32;
  --color-green-dim:      rgba(61,125,50,0.08);

  --color-amber:          #b08830;
  --color-amber-dim:      rgba(176,136,48,0.08);

  --color-red:            #b83c3c;
  --color-red-dim:        rgba(184,60,60,0.08);

  --color-purple:         #7552b5;
  --color-purple-dim:     rgba(117,82,181,0.08);

  --color-cyan:           #2b8e8e;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.15; }
p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

::selection {
  background: rgba(212,168,83,0.25);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@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;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }
a { color: var(--color-gold); text-decoration: none; transition: color var(--transition-interactive); }
a:hover { color: var(--color-gold-hover); }

.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;
}

.mono { font-family: var(--font-mono); }
.tabular { font-variant-numeric: tabular-nums lining-nums; }

/* ============================================================
   NAV BAR
   ============================================================ */
.nav-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition: background var(--transition-interactive);
}

.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-gold);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  text-decoration: none;
}
.nav-logo:hover { color: var(--color-gold-hover); }

.nav-links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  margin-left: auto;
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-interactive);
  white-space: nowrap;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-gold);
  border-radius: 1px;
}

.theme-toggle {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-2); }

.hamburger {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
}
.hamburger:hover { color: var(--color-text); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 56px; left: 0; right: 0; bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) var(--space-6);
  flex-direction: column;
  gap: var(--space-4);
}
.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-size: var(--text-lg);
  color: var(--color-text);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-divider);
  text-decoration: none;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
}

/* ============================================================
   SECTIONS — GLOBAL
   ============================================================ */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
}

.section-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.7;
  margin-bottom: var(--space-12);
}

/* Fade-in on scroll */
.fade-in {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 40%;
  }
}
@keyframes reveal-fade { to { opacity: 1; } }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-32) var(--space-6) var(--space-16);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 80vw;
  height: 80vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,168,83,0.05) 0%, transparent 70%);
  animation: hero-drift 20s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -15%;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91,164,181,0.03) 0%, transparent 70%);
  animation: hero-drift 24s ease-in-out 4s infinite;
}

@keyframes hero-drift {
  0%, 100% { transform: scale(1) translate(0, 0); opacity: 1; }
  33% { transform: scale(1.05) translate(2%, -1%); opacity: 0.8; }
  66% { transform: scale(0.97) translate(-1%, 2%); opacity: 0.9; }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  text-align: center;
}

/* Staggered entrance animations */
.hero-content .hero-initials {
  opacity: 0;
  transform: translateY(20px);
  animation: hero-enter 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
}
.hero-content .hero-tagline {
  opacity: 0;
  transform: translateY(20px);
  animation: hero-enter 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.45s forwards;
}
.hero-content .hero-desc {
  opacity: 0;
  transform: translateY(20px);
  animation: hero-enter 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.7s forwards;
}
.hero-content .hero-ctas {
  opacity: 0;
  transform: translateY(20px);
  animation: hero-enter 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.95s forwards;
}
.hero-content .hero-teaser {
  opacity: 0;
  transform: translateY(12px);
  animation: hero-enter 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1.2s forwards;
}

@keyframes hero-enter {
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-content .hero-initials,
  .hero-content .hero-tagline,
  .hero-content .hero-desc,
  .hero-content .hero-ctas,
  .hero-content .hero-teaser {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

.hero-initials {
  font-family: var(--font-display);
  font-size: clamp(2rem, 0.5rem + 4.5vw, 4.5rem);
  color: var(--color-gold);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 60ch;
  margin: 0 auto var(--space-10);
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Demo teaser pulse in hero */
.hero-teaser {
  margin-top: var(--space-10);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.hero-teaser a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-teal);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(91,164,181,0.25);
  border-radius: var(--radius-full);
  transition: color var(--transition-interactive), border-color var(--transition-interactive), background var(--transition-interactive);
}
.hero-teaser a:hover { color: var(--color-teal-hover); border-color: var(--color-teal); background: rgba(91,164,181,0.06); }

.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-teal);
  position: relative;
  flex-shrink: 0;
}
.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px solid var(--color-teal);
  animation: pulse-ring 2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.2); opacity: 0; }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--transition-interactive), color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gold);
  color: #1a1b1e;
}
.btn-primary:hover { background: var(--color-gold-hover); color: #1a1b1e; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-2);
}
.btn-secondary:hover { border-color: var(--color-gold); color: var(--color-gold); transform: translateY(-1px); }


/* ============================================================
   INTERACTIVE ARCHITECTURE STACK
   ============================================================ */
.arch-layer {
  position: relative;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 180ms cubic-bezier(0.16, 1, 0.3, 1), border-color 180ms cubic-bezier(0.16, 1, 0.3, 1);
  cursor: default;
}

.arch-layer:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.arch-layer-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 350ms cubic-bezier(0.16, 1, 0.3, 1), opacity 250ms ease, padding 250ms ease;
  opacity: 0;
  padding: 0 var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.arch-layer:hover .arch-layer-detail {
  max-height: 80px;
  opacity: 1;
  padding: var(--space-2) var(--space-4) var(--space-3);
}

/* Tap-to-expand on touch devices */
.arch-layer.expanded .arch-layer-detail {
  max-height: 120px;
  opacity: 1;
  padding: var(--space-2) var(--space-4) var(--space-3);
}

/* On mobile: always show layer details since hover isn't available */
@media (max-width: 768px) {
  .arch-layer-detail {
    max-height: none;
    opacity: 1;
    padding: var(--space-2) 0 var(--space-1);
    overflow: visible;
  }
  .arch-layer:hover {
    transform: none;
  }
}

/* Data flow animation between layers */
.arch-flow-container {
  position: relative;
}

.arch-flow-dots {
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  overflow: hidden;
  pointer-events: none;
}

.arch-flow-dot {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-gold);
  left: -1px;
  animation: flow-down 3s linear infinite;
  opacity: 0;
}

.arch-flow-dot:nth-child(2) { animation-delay: 1s; background: var(--color-teal); }
.arch-flow-dot:nth-child(3) { animation-delay: 2s; background: var(--color-blue); }

@keyframes flow-down {
  0% { top: 100%; opacity: 0; }
  10% { opacity: 0.8; }
  90% { opacity: 0.8; }
  100% { top: 0%; opacity: 0; }
}

/* Stat card entrance */
.stat-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.stat-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.stat-card:nth-child(2) { transition-delay: 0.1s; }
.stat-card:nth-child(3) { transition-delay: 0.2s; }
.stat-card:nth-child(4) { transition-delay: 0.3s; }

/* ============================================================
   STAGGERED SCROLL REVEALS
   ============================================================ */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.08s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.16s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.24s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.32s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }

/* Why Now cards hover lift */
.why-now-card {
  transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 250ms cubic-bezier(0.16, 1, 0.3, 1), border-color 250ms cubic-bezier(0.16, 1, 0.3, 1);
}
.why-now-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-2);
}

/* ============================================================
   PILLAR CARDS
   ============================================================ */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.pillar-card:hover {
  border-color: var(--color-border-2);
  box-shadow: var(--shadow-md);
}

.pillar-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
}

.pillar-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.pillar-items {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.pillar-items li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  padding-left: var(--space-5);
  position: relative;
}

.pillar-items li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0.5;
}

.pillar-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-faint);
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: var(--space-10);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), var(--color-teal));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

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

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-10) + 8px);
  top: var(--space-1);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-gold);
  z-index: 1;
}

.timeline-item.milestone .timeline-dot {
  background: var(--color-gold);
  box-shadow: 0 0 12px rgba(212,168,83,0.3);
}

.timeline-title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.timeline-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.credentials {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-12);
}

.credential-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.credential-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  font-size: 1rem;
  flex-shrink: 0;
}

.credential-text {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
}

/* ============================================================
   NSCP DEMO SECTION
   ============================================================ */
.demo-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.demo-tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-divider);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0;
}
.demo-tabs::-webkit-scrollbar { display: none; }

.demo-tab {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-interactive), border-color var(--transition-interactive);
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.demo-tab:hover { color: var(--color-text); }
.demo-tab.active {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.demo-panel {
  display: none;
  padding: var(--space-8) 0;
}
.demo-panel.active { display: block; }

/* Sub-tabs */
.sub-tabs {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}

.sub-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-interactive), border-color var(--transition-interactive);
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.sub-tab:hover { color: var(--color-text); }
.sub-tab.active { color: var(--color-teal); border-bottom-color: var(--color-teal); }

.sub-panel { display: none; }
.sub-panel.active { display: block; }

/* ============================================================
   CARDS & DATA DISPLAY — DEMO
   ============================================================ */
.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.card-title-lg {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}

.separator {
  height: 1px;
  background: var(--color-divider);
  margin: var(--space-4) 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-gold { background: var(--color-gold-dim); color: var(--color-gold); }
.badge-teal { background: var(--color-teal-dim); color: var(--color-teal); }
.badge-blue { background: var(--color-blue-dim); color: var(--color-blue); }
.badge-green { background: var(--color-green-dim); color: var(--color-green); }
.badge-amber { background: var(--color-amber-dim); color: var(--color-amber); }
.badge-red { background: var(--color-red-dim); color: var(--color-red); }
.badge-purple { background: var(--color-purple-dim); color: var(--color-purple); }
.badge-muted { background: var(--color-surface-3); color: var(--color-text-faint); }

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* KPI cards */
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.kpi-label {
  font-size: 0.7rem;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-1);
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}
.kpi-value.green { color: var(--color-green); }
.kpi-value.gold { color: var(--color-gold); }
.kpi-value.blue { color: var(--color-blue); }
.kpi-value.amber { color: var(--color-amber); }
.kpi-value.teal { color: var(--color-teal); }

.kpi-delta {
  font-size: 0.7rem;
  margin-top: var(--space-1);
}
.kpi-delta.up { color: var(--color-green); }
.kpi-delta.down { color: var(--color-red); }
.kpi-delta.flat { color: var(--color-text-faint); }

/* Table styles */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-xs);
}

.data-table th {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-divider);
  white-space: nowrap;
}

.data-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-muted);
}

.data-table .td-primary { color: var(--color-text); }
.data-table .td-mono { font-family: var(--font-mono); font-size: 0.75rem; }
.data-table .td-dim { color: var(--color-text-faint); }

/* Architecture stack */
.arch-layer {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: var(--space-2);
}

.arch-layer-label {
  min-width: 160px;
  flex-shrink: 0;
}

.arch-layer-num {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
}

.arch-layer-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.arch-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.arch-chip {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.arch-chip-accent {
  border-color: var(--color-border-2);
}

.arch-sep { color: var(--color-text-faint); font-size: var(--text-xs); }

/* Workflow steps */
.workflow-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.workflow-step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.step-num.human { background: var(--color-red-dim); color: var(--color-red); }
.step-num.agent { background: var(--color-blue-dim); color: var(--color-blue); }
.step-num.determin { background: var(--color-surface-3); color: var(--color-text-faint); }
.step-num.system { background: var(--color-green-dim); color: var(--color-green); }

.step-body { flex: 1; min-width: 0; }
.step-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); margin-bottom: var(--space-1); }
.step-desc { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.6; }

.token-badge {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.tb-chip {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}
.tb-tokens { background: var(--color-teal-dim); color: var(--color-teal); }
.tb-cost { background: var(--color-gold-dim); color: var(--color-gold); }
.tb-model { background: var(--color-surface-3); color: var(--color-text-faint); }
.tb-zero { background: var(--color-surface-3); color: var(--color-text-faint); }

.cumulative-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.cum-label { font-size: var(--text-xs); color: var(--color-text-faint); }
.cum-value { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-teal); font-weight: 600; }
.cum-vs { font-size: var(--text-xs); color: var(--color-text-muted); text-align: right; }

.swimlane-header {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  margin-bottom: var(--space-4);
}

/* Data products layout */
.dp-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .dp-layout { grid-template-columns: 1fr; }
}

.dp-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.dp-list-header {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  padding: var(--space-2) var(--space-3);
}

.dp-list-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-interactive);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.dp-list-item:hover { background: var(--color-surface-2); }
.dp-list-item.active { background: var(--color-surface-2); color: var(--color-text); border-left: 2px solid var(--color-gold); }

.dp-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-faint);
}

/* Lineage flow */
.lineage-flow {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding: var(--space-3) 0;
}

.lineage-node {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.lineage-arrow {
  color: var(--color-teal);
  font-size: var(--text-base);
}

/* Ontology cards */
.ontology-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-3);
}

.ontology-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  cursor: pointer;
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}
.ontology-card:hover { border-color: var(--color-border-2); }
.ontology-card.active { border-color: var(--color-gold); background: var(--color-gold-dim); }

.ontology-card-title { font-size: var(--text-xs); font-weight: 600; color: var(--color-text); }
.ontology-card-type { font-size: 0.65rem; margin-top: var(--space-1); }

.ontology-detail {
  display: none;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-4);
}
.ontology-detail.active { display: block; }

/* Agent cards */
.agent-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
}

.agent-card-sm {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}
.agent-card-sm:hover { border-color: var(--color-border-2); }
.agent-card-sm.active { border-color: var(--color-gold); background: var(--color-gold-dim); }

.agent-detail-pane {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-4);
}

/* Gateway diagram */
.gw-flow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding: var(--space-2) 0;
}

.gw-node {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 500;
  text-align: center;
  color: var(--color-text-muted);
  min-width: 90px;
}
.gw-agent { border-color: rgba(91,143,212,0.3); color: var(--color-blue); }
.gw-gateway { border-color: rgba(212,168,83,0.3); color: var(--color-gold); background: var(--color-gold-dim); }
.gw-router { border-color: rgba(155,122,216,0.3); color: var(--color-purple); }
.gw-llm { border-color: rgba(91,164,181,0.3); color: var(--color-teal); }
.gw-store { border-color: rgba(106,171,92,0.3); color: var(--color-green); }

.gw-arrow { color: var(--color-text-faint); font-size: var(--text-base); }

/* ROI Calculator */
.roi-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .roi-layout { grid-template-columns: 1fr; }
}

.roi-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.input-group { display: flex; flex-direction: column; gap: var(--space-2); }
.input-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  justify-content: space-between;
}
.input-label span {
  font-family: var(--font-mono);
  color: var(--color-gold);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-surface-3);
  outline: none;
  --pct: 50%;
  background: linear-gradient(to right, var(--color-gold) 0%, var(--color-gold) var(--pct), var(--color-surface-3) var(--pct));
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-gold);
  cursor: pointer;
  border: 2px solid var(--color-bg);
  box-shadow: var(--shadow-sm);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-gold);
  cursor: pointer;
  border: 2px solid var(--color-bg);
  box-shadow: var(--shadow-sm);
}

select {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  color: var(--color-text);
}

.roi-outputs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.roi-kpi {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.roi-kpi-label { font-size: 0.65rem; color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.06em; }
.roi-kpi-value { font-family: var(--font-mono); font-size: var(--text-lg); font-weight: 600; color: var(--color-text); font-variant-numeric: tabular-nums; }
.roi-kpi-value.green { color: var(--color-green); }
.roi-kpi-value.blue { color: var(--color-blue); }
.roi-kpi-value.amber { color: var(--color-amber); }

.bar-chart-wrap {
  grid-column: 1 / -1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.bar-chart-title { font-size: var(--text-xs); color: var(--color-text-faint); margin-bottom: var(--space-2); }

/* Optimization cards */
.optim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.optim-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.optim-icon { font-size: 1.5rem; margin-bottom: var(--space-3); }
.optim-title { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); margin-bottom: var(--space-2); }
.optim-desc { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.6; margin-bottom: var(--space-3); }
.optim-saving { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-green); }

/* Agent feed */
.feed-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.feed-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-xs);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
  transition: opacity 300ms var(--ease);
}

.feed-time { font-family: var(--font-mono); font-size: 0.65rem; color: var(--color-text-faint); white-space: nowrap; margin-top: 2px; min-width: 36px; }
.feed-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; margin-top: 6px; }
.feed-text { color: var(--color-text-muted); line-height: 1.5; }

/* Status indicator */
.si { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.si-green { background: var(--color-green); box-shadow: 0 0 6px var(--color-green); }
.si-amber { background: var(--color-amber); }

/* Capability cards */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
@media (max-width: 768px) {
  .cap-grid { grid-template-columns: 1fr; }
}

.cap-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.cap-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.cap-title { font-size: var(--text-xs); font-weight: 600; color: var(--color-text); }
.cap-desc { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.6; margin-top: var(--space-2); }

/* Perm matrix */
.perm-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-xs);
}
.perm-label { color: var(--color-text-muted); }

/* ============================================================
   ENGAGEMENT MODELS
   ============================================================ */
.engagement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .engagement-grid { grid-template-columns: 1fr; }
}

.engagement-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.engagement-card:hover {
  border-color: var(--color-border-2);
  box-shadow: var(--shadow-md);
}

.engagement-card.featured {
  border-color: var(--color-gold);
  position: relative;
}

.engagement-card.featured::before {
  content: 'Recommended';
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: var(--space-6);
  background: var(--color-gold);
  color: #1a1b1e;
  font-size: 0.7rem;
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
}

.eng-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.eng-duration {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.eng-scope {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.eng-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.eng-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.eng-list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding-left: var(--space-5);
  position: relative;
}

.eng-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

.eng-best {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.eng-best strong {
  color: var(--color-text);
}

/* ============================================================
   CONTACT
   ============================================================ */
/* ============================================================
   DEMO CALLOUT SECTION
   ============================================================ */
.demo-callout {
  position: relative;
  text-align: center;
  overflow: hidden;
}

.demo-callout-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-16) var(--space-6);
}

.demo-callout-border {
  position: relative;
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-8);
  background: var(--color-surface);
  overflow: hidden;
}

.demo-callout-border::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.demo-callout-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.demo-callout-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: 1.3;
}

.demo-callout-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 58ch;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

.demo-callout-features {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.demo-callout-feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.demo-callout-feature .dcf-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}

.dcf-icon--teal  { background: var(--color-teal-dim); color: var(--color-teal); }
.dcf-icon--gold  { background: var(--color-gold-dim); color: var(--color-gold); }
.dcf-icon--green { background: var(--color-green-dim); color: var(--color-green); }
.dcf-icon--red   { background: var(--color-red-dim); color: var(--color-red); }

.btn-demo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  color: #1a1b1e;
  background: var(--color-gold);
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
  white-space: nowrap;
}

.btn-demo:hover {
  background: var(--color-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(212,168,83,0.25);
}

.btn-demo svg {
  transition: transform var(--transition-interactive);
}

.btn-demo:hover svg {
  transform: translateX(2px);
}

.demo-callout-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-6);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .demo-callout-border {
    padding: var(--space-8) var(--space-5);
  }
  .demo-callout-features {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }
}

.contact-section {
  text-align: center;
}

.contact-links {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color var(--transition-interactive), color var(--transition-interactive), background var(--transition-interactive);
}
.contact-link:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: var(--color-gold-dim);
}

.contact-closing {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin: 0 auto;
  line-height: 1.8;
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============================================================
   UTILITIES
   ============================================================ */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

@media (max-width: 768px) {
  #problems .pillar-card { padding: var(--space-5) !important; }
  #problems div[style*="grid-template-columns:repeat(2"] { grid-template-columns: 1fr !important; }
}


/* ============================================================
   HOME PAGE — PROJECT CARDS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.projects-grid--upcoming {
  grid-template-columns: repeat(2, 1fr);
  margin-top: var(--space-6);
}

@media (max-width: 640px) {
  .projects-grid { grid-template-columns: 1fr; }
  .projects-grid--upcoming { grid-template-columns: 1fr; }
}

.project-card--featured {
  background: var(--color-surface);
  border: 1px solid rgba(212,168,83,0.25);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(212,168,83,0.08), var(--shadow-sm);
  transition: box-shadow 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
  margin-bottom: var(--space-2);
}

.project-card--featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-teal), var(--color-gold));
  background-size: 200% 100%;
  animation: shimmer-bar 4s ease-in-out infinite;
}

@keyframes shimmer-bar {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.project-card--featured:hover {
  box-shadow: 0 0 0 1px rgba(212,168,83,0.2), var(--shadow-lg);
  border-color: rgba(212,168,83,0.4);
  transform: translateY(-3px);
}

.project-card--featured .home-card-title {
  font-size: var(--text-xl);
}

.project-card--featured .card-desc {
  max-width: 72ch;
}

.card-bottom-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-top: var(--space-2);
}

@media (max-width: 640px) {
  .card-bottom-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border-2), transparent);
  transition: background 0.35s var(--ease);
}

.project-card--active {
  border-color: rgba(91,164,181,0.25);
  box-shadow: 0 0 0 1px rgba(91,164,181,0.08), var(--shadow-sm);
}

.project-card--active::before {
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-gold));
}

.project-card--active:hover {
  box-shadow: 0 0 0 1px rgba(91,164,181,0.15), var(--shadow-lg);
  border-color: rgba(91,164,181,0.35);
  transform: translateY(-4px);
}

.project-card--upcoming {
  opacity: 0.55;
  cursor: default;
}

.project-card--upcoming::before {
  background: linear-gradient(90deg, var(--color-border-2), transparent);
}

.home-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.badge--active {
  color: var(--color-green);
  background: var(--color-green-dim);
}

.badge--active::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-green);
  animation: pulse-dot-home 2s ease-in-out infinite;
}

@keyframes pulse-dot-home {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.badge--demo {
  color: var(--color-teal);
  background: var(--color-teal-dim);
}

.badge--demo::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-teal);
  animation: pulse-dot-home 2s ease-in-out infinite;
}

.badge--upcoming {
  color: var(--color-text-faint);
  background: var(--color-surface-2);
}

.home-card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.3;
}

.project-card--upcoming .home-card-title {
  color: var(--color-text-muted);
}

.card-mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-gold);
  letter-spacing: 0.06em;
}

.project-card--active .card-mono { color: var(--color-teal); }

.card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-faint);
  background: var(--color-surface-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

.card-link-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-gold);
  margin-top: var(--space-2);
  transition: gap var(--transition-interactive);
}

.project-card--active .card-link-row { color: var(--color-teal); }

.project-card--active:hover .card-link-row,
.project-card--featured:hover .card-link-row { gap: var(--space-3); }

.card-link-row svg { transition: transform var(--transition-interactive); }

.project-card--active:hover .card-link-row svg,
.project-card--featured:hover .card-link-row svg { transform: translateX(2px); }

/* KPI row for cards */
.card-kpis {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-top: var(--space-2);
}

.card-kpi {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.card-kpi-value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.card-kpi-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Home page hero extras */
.hero-logo-img {
  max-width: 140px;
  width: 30%;
  margin-bottom: var(--space-6);
  filter: drop-shadow(0 0 30px rgba(91,164,181,0.25)) drop-shadow(0 0 60px rgba(91,164,181,0.1));
  opacity: 0;
  animation: hero-enter 0.8s var(--ease) 0.2s forwards, logo-glow 4s ease-in-out 1.5s infinite;
}

@keyframes logo-glow {
  0%, 100% { filter: drop-shadow(0 0 30px rgba(91,164,181,0.25)) drop-shadow(0 0 60px rgba(91,164,181,0.1)); }
  50% { filter: drop-shadow(0 0 40px rgba(91,164,181,0.35)) drop-shadow(0 0 80px rgba(212,168,83,0.12)); }
}

.hero-brand {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-10);
  opacity: 0;
  animation: hero-enter 0.8s var(--ease) 0.35s forwards;
}

.hero-tagline-gradient {
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text) 60%, var(--color-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin-bottom: var(--space-12);
  opacity: 0;
  animation: hero-enter 0.8s var(--ease) 0.6s forwards;
}

.hero-scroll-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  opacity: 0;
  animation: hero-enter 0.8s var(--ease) 0.8s forwards;
  transition: color var(--transition-interactive), border-color var(--transition-interactive), background var(--transition-interactive);
  cursor: pointer;
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--color-surface) 50%, transparent);
  backdrop-filter: blur(8px);
}
.hero-scroll-indicator:hover {
  color: var(--color-gold);
  border-color: rgba(212,168,83,0.25);
  background: var(--color-gold-dim);
}

.hero-scroll-indicator svg {
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* Scroll reveal for home page */
.reveal {
  opacity: 0;
  clip-path: inset(0 0 8px 0);
  transition: opacity 0.6s var(--ease), clip-path 0.6s var(--ease);
}

.reveal.visible {
  opacity: 1;
  clip-path: inset(0 0 0 0);
}

/* ============================================================
   FOOTER — SHARED
   ============================================================ */
.site-footer {
  text-align: center;
  padding: var(--space-12) var(--space-6) var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 60ch;
  margin: 0 auto var(--space-6);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

.footer-divider {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--color-text-faint);
  opacity: 0.5;
}

/* ============================================================
   SITE NAV — MULTI-PAGE
   ============================================================ */
.nav-logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--transition-interactive);
}
.nav-logo-link:hover { opacity: 0.85; }

.nav-logo-img { height: 32px; width: auto; }

.nav-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-gold);
  letter-spacing: -0.02em;
}

.nav-spacer { flex: 1; }

/* ============================================================
   RESEARCH PAGE
   ============================================================ */
.research-categories {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.research-category-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-4);
}

@media (max-width: 768px) {
  .research-grid { grid-template-columns: 1fr; }
}

.research-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.research-card:hover {
  border-color: var(--color-border-2);
}

.research-card-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.research-card-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.research-card-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.research-card-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.research-card-bullets li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  padding-left: var(--space-5);
  position: relative;
}

.research-card-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0.5;
}

.research-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-faint);
}


/* ============================================================
   FORCE VISIBILITY OVERRIDES — Fix for tabbed content animation
   ============================================================ */
.demo-panel.active .cap-grid .cap-card {
  opacity: 1 !important;
  transform: none !important;
}
.demo-panel.active .feed-list .feed-item {
  opacity: 1 !important;
  transform: none !important;
}
.cap-grid .cap-card {
  opacity: 1;
  transform: none;
}

/* Research card expansion */
.research-card-detail {
  display: none;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.7;
}
.research-card.expanded .research-card-detail {
  display: block;
}
.research-card-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-teal);
  cursor: pointer;
  margin-top: var(--space-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  background: none;
  padding: 0;
}
.research-card-toggle:hover {
  color: var(--color-teal-hover);
}
.research-card.expanded .research-card-toggle .toggle-text {
  display: none;
}
.research-card.expanded .research-card-toggle::after {
  content: 'Collapse';
}