/* =========================================================================
   AI Players, Design System v2
   ========================================================================= */

:root {
  /* Brand */
  --bg: #070819;
  --bg-alt: #0c1025;
  --bg-deep: #04050f;
  --text: #fafaf9;
  --text-secondary: rgba(255,255,255,0.72);
  --text-muted: rgba(255,255,255,0.42);
  --text-faint: rgba(255,255,255,0.22);

  --accent: #e0790a;
  --accent-hover: #f18d04;
  --accent-soft: rgba(224,121,10,0.14);
  --accent-glow: rgba(224,121,10,0.25);
  --purple: #7e3397;
  --purple-soft: rgba(126,51,151,0.18);

  --border: rgba(255,255,255,0.06);
  --border-mid: rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.18);

  --bg-rgb: 7,8,25;
  --accent-rgb: 224,121,10;
  --purple-rgb: 126,51,151;

  --stack-logo-filter: none;

  /* Type */
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Layout */
  --maxw: 1180px;
  --maxw-narrow: 820px;
  --gutter: 32px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg: #f0e9d8;
  --bg-alt: #e3d9c0;
  --bg-deep: #d8cdb0;
  --text: #1a1a22;
  --text-secondary: rgba(26,26,34,0.86);
  --text-muted: rgba(26,26,34,0.62);
  --text-faint: rgba(26,26,34,0.34);

  --accent: #a64c00;
  --accent-hover: #8a3f00;
  --accent-soft: rgba(166,76,0,0.10);
  --accent-glow: rgba(166,76,0,0.22);
  --purple: #5a2070;
  --purple-soft: rgba(90,32,112,0.10);

  --border: rgba(26,26,34,0.10);
  --border-mid: rgba(26,26,34,0.18);
  --border-strong: rgba(26,26,34,0.30);

  --bg-rgb: 240,233,216;
  --accent-rgb: 166,76,0;
  --purple-rgb: 90,32,112;

  --stack-logo-filter: invert(1) brightness(0.78) contrast(1.1);
}

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

/* Skip-to-content (a11y) — visible on focus */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); outline: 2px solid var(--text); outline-offset: 2px; }
html { scroll-behavior: smooth; overflow-x: hidden; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100%;
  transition: background 0.4s ease, color 0.4s ease;
}
::selection { background: var(--accent); color: var(--bg); }
img, svg { display: block; max-width: 100%; height: auto; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Light theme overrides for logos / illustrations */
.stack-logo img,
.stack-logo svg,
.marquee-item img { filter: var(--stack-logo-filter); }
.logo-light, .logo-dark { display: block; }
[data-theme="light"] .logo-dark { display: none; }
.logo-light { display: none; }
[data-theme="light"] .logo-light { display: block; }

/* =========================================================================
   Announcement bar
   ========================================================================= */
.announcement {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 101;
  padding: 10px 44px;
  text-align: center;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
  transition: transform 0.3s ease;
}
.announcement.hidden { transform: translateY(-100%); pointer-events: none; }
.announcement p {
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}
.announcement p::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 10px;
  vertical-align: 1px;
  box-shadow: 0 0 12px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}
.announcement strong { color: var(--accent); font-weight: 600; }
.announcement-close {
  position: absolute;
  right: 16px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 0.85rem;
  line-height: 1;
  transition: color 0.3s ease;
}
.announcement-close:hover { color: var(--text); }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* =========================================================================
   Nav
   ========================================================================= */
nav {
  position: fixed;
  top: 34px; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(var(--bg-rgb), 0.72);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: padding 0.4s ease, top 0.3s ease, background 0.3s ease;
}
nav.scrolled { padding: 12px 0; background: rgba(var(--bg-rgb), 0.92); }
nav.no-announcement { top: 0; }
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: opacity 0.3s ease;
}
.logo:hover { opacity: 0.7; }
.logo-mark { width: 28px; height: 28px; flex-shrink: 0; }
.logo-icon {
  height: 30px; width: 30px;
  object-fit: contain;
  border-radius: 4px;
  flex-shrink: 0;
}
.logo-light { display: none; }
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }
.logo-text {
  font-family: var(--sans);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 5px; text-transform: uppercase;
  color: var(--text);
}
.nav-cta {
  font-family: var(--sans);
  font-size: 0.68rem; font-weight: 500;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  padding: 10px 0;
  position: relative;
}
.nav-cta::after {
  content: '';
  position: absolute;
  bottom: 6px; left: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.nav-cta:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-back {
  font-family: var(--sans);
  font-size: 0.68rem; font-weight: 500;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 10px 0;
  margin-right: 16px;
  transition: color 0.3s ease;
}
.nav-back:hover { color: var(--text); }

.nav-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}
.fc-btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  padding: 0;
  font-family: var(--sans);
  transition: transform 0.3s ease, border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}
.fc-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.fc-icon { width: 16px; height: 16px; display: block; }
.fc-icon-sun { display: block; }
.fc-icon-moon { display: none; }
[data-theme="light"] .fc-icon-sun { display: none; }
[data-theme="light"] .fc-icon-moon { display: block; }
.fc-lang { font-size: 15px; line-height: 1; }
.fc-lang-ar, .fc-lang-uk { display: none; }
.fc-lang-ar { display: inline; }
[data-lang="en"] .fc-lang-ar { display: none; }
[data-lang="en"] .fc-lang-uk { display: inline; }

/* =========================================================================
   Hero, cinematic split
   ========================================================================= */
.hero {
  min-height: 100vh;
  padding: 180px 32px 100px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
.hero-bg-stage {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 30%, rgba(var(--purple-rgb),0.18) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 20% 70%, rgba(var(--accent-rgb),0.10) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 100%);
}
[data-theme="light"] .hero-bg-stage {
  background:
    radial-gradient(ellipse 80% 60% at 70% 30%, rgba(var(--purple-rgb),0.10) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 20% 70%, rgba(var(--accent-rgb),0.08) 0%, transparent 50%),
    linear-gradient(180deg, #ece4d0 0%, var(--bg) 100%);
}
.hero-bg-image {
  position: absolute; inset: 0;
  background: url('assets/images/hero-bg-space.jpg') center center / cover no-repeat;
  opacity: 0.14;
  mix-blend-mode: screen;
  filter: brightness(0.55);
}
[data-theme="light"] .hero-bg-image { opacity: 0.18; mix-blend-mode: multiply; filter: contrast(0.85); }
.hero-bg-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
[data-theme="light"] .hero-bg-canvas { opacity: 0.35; }
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}
[data-theme="light"] .hero-bg-grid {
  background-image:
    linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
}
.hero-fade {
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 220px; z-index: 3;
  background: linear-gradient(to bottom, transparent 0%, var(--bg) 100%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 72px;
  align-items: center;
  position: relative;
  z-index: 4;
}
.hero-left { position: relative; }
.hero-right { position: relative; }

.hero-label {
  font-family: var(--sans);
  font-size: 0.66rem; font-weight: 500;
  letter-spacing: 4px; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 36px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.1s forwards;
}
.hero-label::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--accent);
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(1.85rem, 5.2vw, 4.4rem);
  font-weight: 300; line-height: 1.08;
  letter-spacing: -0.022em; color: var(--text);
  margin-bottom: 32px;
  text-wrap: balance;
}
.hero-title em { font-style: italic; color: var(--accent); font-weight: 400; }
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(28px);
  animation: wordIn 0.85s var(--ease-out) forwards;
}
.hero-sub {
  font-family: var(--sans);
  font-size: 1rem; font-weight: 300;
  color: var(--text-secondary); line-height: 1.75;
  max-width: 520px; margin-bottom: 44px;
  opacity: 0; animation: fadeUp 0.9s var(--ease-out) 0.85s forwards;
}
.hero-actions {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.9s var(--ease-out) 1.0s forwards;
}

.btn-primary, .hero-cta, .mid-cta-link, .close-cta {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--sans);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase;
  color: var(--bg); background: var(--accent);
  text-decoration: none; padding: 18px 38px;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn-primary::before, .hero-cta::before, .mid-cta-link::before, .close-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.18) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.7s var(--ease);
}
.btn-primary:hover, .hero-cta:hover, .mid-cta-link:hover, .close-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 18px 50px var(--accent-glow);
}
.btn-primary:hover::before, .hero-cta:hover::before, .mid-cta-link:hover::before, .close-cta:hover::before {
  transform: translateX(100%);
}
.btn-primary svg, .hero-cta svg, .mid-cta-link svg, .close-cta svg {
  width: 14px; height: 14px; transition: transform 0.3s ease;
  position: relative; z-index: 1;
}
.btn-primary span, .hero-cta span, .mid-cta-link span, .close-cta span { position: relative; z-index: 1; }
.btn-primary:hover svg, .hero-cta:hover svg, .mid-cta-link:hover svg, .close-cta:hover svg { transform: translateX(4px); }

[data-theme="light"] .btn-primary,
[data-theme="light"] .hero-cta,
[data-theme="light"] .mid-cta-link,
[data-theme="light"] .close-cta { color: #f7f3ea; }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sans);
  font-size: 0.72rem; font-weight: 500;
  letter-spacing: 3px; text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none; padding: 18px 28px;
  border: 1px solid var(--border-mid);
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-secondary:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.02);
}

/* Hero meta strip, small live indicators below CTAs */
.hero-meta {
  margin-top: 60px;
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.9s var(--ease-out) 1.15s forwards;
}
.hero-meta-item { display: flex; flex-direction: column; gap: 4px; }
.hero-meta-num {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1;
  letter-spacing: -0.01em;
}
.hero-meta-num em { font-style: italic; color: var(--accent); }
.hero-meta-label {
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* =========================================================================
   Hero demo card (animated AI Setter OS preview)
   ========================================================================= */
.demo-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.01) 100%);
  border: 1px solid var(--border-mid);
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
  box-shadow:
    0 30px 80px rgba(0,0,0,0.5),
    0 0 0 1px rgba(255,255,255,0.02) inset;
  opacity: 0;
  transform: translateY(40px) rotateX(8deg);
  transform-origin: bottom center;
  animation: cardIn 1.1s var(--ease-out) 0.6s forwards;
}
[data-theme="light"] .demo-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.6) 0%, rgba(255,255,255,0.3) 100%);
  box-shadow: 0 30px 80px rgba(0,0,0,0.12), 0 0 0 1px rgba(0,0,0,0.02) inset;
}
.demo-card-glow {
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  background: linear-gradient(120deg, transparent 30%, var(--accent-soft) 50%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
  filter: blur(40px);
  animation: cardGlow 8s linear infinite;
}
.demo-card-top {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0,0,0,0.16);
}
[data-theme="light"] .demo-card-top { background: rgba(0,0,0,0.04); }
.demo-card-dots { display: flex; gap: 6px; }
.demo-card-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.15); }
[data-theme="light"] .demo-card-dot { background: rgba(0,0,0,0.18); }
.demo-card-title {
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-left: 6px;
}
.demo-card-title strong { color: var(--text-secondary); font-weight: 500; }
.demo-card-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.demo-card-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px rgba(74,222,128,0.6);
}
.demo-card-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 10px;
  background: rgba(0,0,0,0.22);
  border-bottom: 1px solid var(--border);
}
[data-theme="light"] .demo-card-tabs { background: rgba(0,0,0,0.05); }
.demo-card-tab {
  flex: 1;
  min-width: 0;
  padding: 7px 6px;
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  transition: color 0.22s ease, background 0.22s ease, border-color 0.22s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.demo-card-tab:hover { color: var(--text-secondary); background: rgba(255,255,255,0.04); }
[data-theme="light"] .demo-card-tab:hover { background: rgba(0,0,0,0.04); }
.demo-card-tab.active {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: rgba(var(--accent-rgb), 0.35);
}
.demo-card-body {
  padding: 0;
  height: 540px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.dc-main {
  display: flex;
  flex: 1;
  min-height: 0;
}
.dc-conversation {
  flex: 1.45;
  min-width: 0;
  display: flex;
  flex-direction: column;
  position: relative;
}
.dc-side {
  flex: 1;
  max-width: 240px;
  min-width: 200px;
  border-left: 1px solid var(--border);
  background: rgba(0,0,0,0.22);
  display: flex;
  flex-direction: column;
  position: relative;
}
[data-theme="light"] .dc-side { background: rgba(0,0,0,0.04); }
.dc-side-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-faint);
}
.dc-side-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulseDot 1.6s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 0.55; transform: scale(0.92); }
  50% { opacity: 1; transform: scale(1.1); }
}
.dc-side-empty {
  padding: 14px;
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--text-faint);
  text-align: center;
  font-style: italic;
}
.dc-side:has(.dc-intel:not(:empty)) .dc-side-empty { display: none; }
.dc-messages {
  flex: 1 1 auto;
  min-height: 0;
  padding: 20px 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--border-mid) transparent;
}
.dc-messages::-webkit-scrollbar { width: 4px; }
.dc-messages::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 2px; }
.dc-messages::-webkit-scrollbar-track { background: transparent; }

/* Chat bubbles */
.dc-msg {
  max-width: 78%;
  padding: 11px 14px;
  border-radius: 14px;
  font-family: var(--sans);
  font-size: 0.78rem;
  line-height: 1.5;
  word-break: break-word;
  overflow-wrap: anywhere;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.dc-msg.show { opacity: 1; transform: translateY(0); }
.dc-msg.from {
  align-self: flex-start;
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  border-bottom-left-radius: 4px;
}
[data-theme="light"] .dc-msg.from {
  background: rgba(0,0,0,0.05);
  color: var(--text);
}
.dc-msg.to {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--accent) 0%, #c46308 100%);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.dc-msg-meta {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--text-faint);
  letter-spacing: 0.5px;
  margin-top: 4px;
  align-self: flex-start;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.dc-msg-meta.from-right { align-self: flex-end; }
.dc-msg-meta.show { opacity: 1; }

/* Typing indicator */
.dc-typing {
  align-self: flex-start;
  padding: 12px 16px;
  background: rgba(255,255,255,0.04);
  border-radius: 14px;
  border-bottom-left-radius: 4px;
  display: none;
  gap: 4px;
}
[data-theme="light"] .dc-typing { background: rgba(0,0,0,0.05); }
.dc-typing.show { display: inline-flex; }
.dc-typing-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: typingDot 1.2s ease-in-out infinite;
}
.dc-typing-dot:nth-child(2) { animation-delay: 0.15s; }
.dc-typing-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes typingDot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* Audio voice message bubble */
.dc-audio {
  align-self: flex-end;
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 14px;
  border-bottom-right-radius: 4px;
  background: linear-gradient(135deg, var(--accent) 0%, #c46308 100%);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  box-shadow: 0 8px 20px var(--accent-glow);
}
.dc-audio.show { opacity: 1; transform: translateY(0); }
.dc-audio-play {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.22);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.dc-audio-play svg { width: 11px; height: 11px; fill: #fff; }
.dc-audio-wave {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 100px;
  height: 18px;
}
.dc-audio-bar {
  width: 2px;
  background: rgba(255,255,255,0.55);
  border-radius: 1px;
  animation: audioPulse 1.4s ease-in-out infinite;
}
.dc-audio.show .dc-audio-bar:nth-child(1) { height: 6px;  animation-delay: 0s; }
.dc-audio.show .dc-audio-bar:nth-child(2) { height: 11px; animation-delay: 0.08s; }
.dc-audio.show .dc-audio-bar:nth-child(3) { height: 15px; animation-delay: 0.16s; }
.dc-audio.show .dc-audio-bar:nth-child(4) { height: 9px;  animation-delay: 0.24s; }
.dc-audio.show .dc-audio-bar:nth-child(5) { height: 16px; animation-delay: 0.32s; }
.dc-audio.show .dc-audio-bar:nth-child(6) { height: 12px; animation-delay: 0.40s; }
.dc-audio.show .dc-audio-bar:nth-child(7) { height: 7px;  animation-delay: 0.48s; }
.dc-audio.show .dc-audio-bar:nth-child(8) { height: 14px; animation-delay: 0.56s; }
.dc-audio.show .dc-audio-bar:nth-child(9) { height: 10px; animation-delay: 0.64s; }
.dc-audio.show .dc-audio-bar:nth-child(10){ height: 8px;  animation-delay: 0.72s; }
.dc-audio.show .dc-audio-bar:nth-child(11){ height: 13px; animation-delay: 0.80s; }
.dc-audio.show .dc-audio-bar:nth-child(12){ height: 6px;  animation-delay: 0.88s; }
@keyframes audioPulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}
.dc-audio-duration {
  font-size: 0.62rem;
  opacity: 0.9;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Step badge, small label between major prospecting phases */
.dc-step-badge {
  align-self: center;
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 5px 10px;
  border: 1px solid var(--border-mid);
  border-radius: 999px;
  background: rgba(0,0,0,0.18);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
[data-theme="light"] .dc-step-badge { background: rgba(0,0,0,0.04); }
.dc-step-badge.show { opacity: 1; transform: scale(1); }
.dc-step-badge strong {
  color: var(--accent);
  font-weight: 600;
  margin-right: 4px;
}

/* Intelligence panel, sidebar, always visible vertical */
.dc-intel {
  margin: 0;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}
.dc-intel::-webkit-scrollbar { width: 4px; }
.dc-intel::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }

/* Pipeline (post-conversation progression) */
.dc-pipeline {
  margin: 0;
  padding: 16px 20px 20px;
  background: rgba(0,0,0,0.28);
  border-top: 1px solid var(--border);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.5s ease, max-height 0.5s ease, padding 0.5s ease;
}
[data-theme="light"] .dc-pipeline { background: rgba(0,0,0,0.05); }
.dc-pipeline.show {
  opacity: 1;
  max-height: 200px;
}
.dc-pipeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.dc-pipeline-header strong {
  font-weight: 500;
  color: var(--text-secondary);
}
.dc-pipeline-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.dc-pipeline-track::before {
  content: '';
  position: absolute;
  top: 7px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--border-mid);
  z-index: 0;
}
.dc-pipeline-fill {
  position: absolute;
  top: 7px;
  left: 12.5%;
  height: 1px;
  background: var(--accent);
  width: 0%;
  z-index: 1;
  transition: width 0.6s ease;
  max-width: 75%;
}
.dc-pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
}
.dc-pipeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--border-mid);
  background: var(--bg-deep);
  transition: all 0.35s ease;
  position: relative;
}
.dc-pipeline-step.active .dc-pipeline-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  animation: pipelinePulse 1.2s ease-in-out;
}
.dc-pipeline-step.done .dc-pipeline-dot {
  background: var(--accent);
  border-color: var(--accent);
}
.dc-pipeline-label {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-faint);
  text-align: center;
  transition: color 0.35s ease;
  line-height: 1.2;
}
.dc-pipeline-step.active .dc-pipeline-label,
.dc-pipeline-step.done .dc-pipeline-label {
  color: var(--text-secondary);
}
.dc-pipeline-step.active .dc-pipeline-label {
  color: var(--accent);
}
@keyframes pipelinePulse {
  0% { box-shadow: 0 0 0 0 var(--accent-soft); }
  50% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 4px var(--accent-soft); }
}
.dc-intel-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.35s ease, transform 0.35s ease, background 0.5s ease, border-color 0.5s ease;
}
[data-theme="light"] .dc-intel-item { background: rgba(255,255,255,0.5); border-color: var(--border); }
.dc-intel-item.show { opacity: 1; transform: translateY(0); }
.dc-intel-item.updated {
  background: var(--accent-soft);
  border-color: rgba(var(--accent-rgb), 0.4);
}
.dc-intel-label {
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-faint);
}
.dc-intel-val {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.2px;
}
.dc-intel-val.hot { color: #f87171; }
.dc-intel-val.good { color: #4ade80; }
.dc-intel-val.warn { color: var(--accent); }

/* Booking inline card */
.dc-booking {
  margin: 4px 0;
  align-self: flex-end;
  max-width: 78%;
  background: linear-gradient(135deg, var(--accent) 0%, #c46308 100%);
  border-radius: 14px;
  border-bottom-right-radius: 4px;
  padding: 12px 14px;
  display: none;
  flex-direction: column;
  gap: 8px;
  color: #fff;
  font-family: var(--sans);
  font-size: 0.74rem;
  box-shadow: 0 8px 24px var(--accent-glow);
}
.dc-booking.show { display: flex; opacity: 1; transform: translateY(0); }
.dc-booking-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  padding: 8px 10px;
  background: rgba(255,255,255,0.18);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.66rem;
  color: #fff;
  letter-spacing: 0.3px;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-all;
}
.dc-booking-link svg { width: 12px; height: 12px; }

/* Reset hint (subtle bar) */
.demo-card-foot {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-faint);
  letter-spacing: 0.5px;
  text-align: center;
}
.demo-card-foot > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.demo-progress {
  position: absolute;
  top: 0; left: 0; height: 2px;
  background: var(--accent);
  width: 0%;
  transition: width 0.2s linear;
  z-index: 5;
}

/* =========================================================================
   Marquee, trusted/integrations strip
   ========================================================================= */
.marquee {
  padding: 72px 0 56px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-deep);
  overflow: hidden;
  position: relative;
}
[data-theme="light"] .marquee { background: var(--bg-alt); }
.marquee-head {
  max-width: 720px;
  margin: 0 auto 44px;
  padding: 0 32px;
  text-align: center;
}
.marquee-label {
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.marquee-title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 14px;
}
.marquee-sub {
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto;
}
.marquee-track {
  display: flex;
  gap: 64px;
  width: max-content;
  animation: scrollX 38s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 0.3s ease;
}
.marquee-item:hover { color: var(--text); }
.marquee-item img { width: 22px; height: 22px; opacity: 0.65; }
.marquee-item:hover img { opacity: 1; }
.marquee-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--text-faint);
  flex-shrink: 0;
}

@keyframes scrollX {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* =========================================================================
   Statement / quote moments
   ========================================================================= */
.statement {
  padding: 120px 32px;
  text-align: center;
  max-width: var(--maxw-narrow);
  margin: 0 auto;
  position: relative;
}
.statement-text {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 300; line-height: 1.45;
  color: var(--text-secondary);
  letter-spacing: -0.005em;
  text-wrap: balance;
}
.statement-text strong { color: var(--text); font-weight: 400; }
.statement-text em { font-style: italic; color: var(--accent); }
.statement-mark {
  font-family: var(--serif);
  font-size: 5rem;
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  line-height: 0.4;
  opacity: 0.3;
  margin-bottom: 16px;
}

.divider {
  width: 1px; height: 88px;
  background: linear-gradient(to bottom, transparent, var(--accent), rgba(126,51,151,0.4), transparent);
  margin: 0 auto; opacity: 0.5;
}

/* =========================================================================
   Section header (shared)
   ========================================================================= */
.section-header {
  text-align: center;
  margin-bottom: 72px;
  max-width: 720px;
  margin-left: auto; margin-right: auto;
}
.section-eyebrow {
  font-family: var(--sans);
  font-size: 0.66rem; font-weight: 500;
  letter-spacing: 4px; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.section-eyebrow::before {
  content: '';
  width: 20px; height: 1px;
  background: var(--accent);
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.15;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.section-title em { font-style: italic; color: var(--accent); }
.section-sub {
  font-family: var(--sans);
  font-size: 0.94rem; font-weight: 300;
  color: var(--text-muted);
  max-width: 600px; margin: 20px auto 0;
  line-height: 1.75;
  text-wrap: pretty;
}

/* =========================================================================
   Cases, real client outcomes
   ========================================================================= */
.cases {
  padding: 100px 32px 120px;
  max-width: var(--maxw);
  margin: 0 auto;
  position: relative;
}
.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.case {
  background: var(--bg);
  padding: 56px 56px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
  transition: background 0.4s ease;
  position: relative;
}
.case:hover { background: var(--bg-alt); }
.case-left { position: relative; }
.case-meta {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border: 1px solid rgba(var(--accent-rgb),0.3);
  border-radius: 999px;
  background: var(--accent-soft);
}
.case-name {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.case-vertical {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.case-desc {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 22px;
  max-width: 480px;
}
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.case-tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 10px;
  border: 1px solid var(--border-mid);
  border-radius: 999px;
}
.case-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.case-stats.case-stats-single { grid-template-columns: 1fr; }
.case-stat {
  background: var(--bg);
  padding: 28px 24px;
  text-align: left;
}
.case:hover .case-stat { background: var(--bg-alt); }
.case-stat-num {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.case-stat-num .unit {
  font-size: 0.55em;
  color: var(--text-muted);
  margin-left: 4px;
  font-style: italic;
}
.case-stat-label {
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.cases-disclaimer {
  text-align: center;
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-faint);
  letter-spacing: 0.5px;
  font-style: italic;
}

/* Pilot / qualitative case variants */
.case-meta-pilot {
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border-color: var(--border-mid);
}
[data-theme="light"] .case-meta-pilot { background: rgba(0,0,0,0.04); }
.case-stat-qual {
  font-size: clamp(1rem, 1.5vw, 1.3rem) !important;
  letter-spacing: -0.005em !important;
  line-height: 1.15;
  color: var(--text) !important;
  text-transform: none;
  font-style: italic;
}
.case-stat-qual .unit {
  font-style: normal;
  color: var(--text-muted);
  font-size: 0.62em;
  margin-left: 2px;
}

/* Enterprise strip, appears after cases */
.enterprise-strip {
  margin-top: 40px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%);
  position: relative;
  overflow: hidden;
}
.enterprise-strip::before {
  content: '';
  position: absolute;
  width: 480px; height: 480px;
  top: -200px; right: -200px;
  background: radial-gradient(circle, var(--purple-soft) 0%, transparent 65%);
  pointer-events: none;
}
.enterprise-strip::after {
  content: '';
  position: absolute;
  width: 360px; height: 360px;
  bottom: -180px; left: -120px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 65%);
  pointer-events: none;
}
.enterprise-strip-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  padding: 56px 56px;
  position: relative;
  z-index: 1;
}
.enterprise-strip-left .section-eyebrow { margin-bottom: 16px; }
.enterprise-strip-title {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.4vw, 1.95rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-bottom: 18px;
  text-wrap: balance;
}
.enterprise-strip-title em { font-style: italic; color: var(--accent); font-weight: 400; }
.enterprise-strip-sub {
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
  text-wrap: pretty;
}
.enterprise-strip-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.enterprise-strip-list li {
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 400;
  color: var(--text-secondary);
  padding: 14px 0 14px 30px;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
  position: relative;
}
.enterprise-strip-list li:last-child { border-bottom: none; }
.enterprise-strip-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 22px;
  width: 16px; height: 1px;
  background: var(--accent);
}

/* =========================================================================
   Problems grid
   ========================================================================= */
.problems, .system, .audience, .stack, .phases, .differentiators, .capabilities {
  padding: 100px 32px 120px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.problem-card {
  background: var(--bg);
  padding: 44px 38px;
  transition: background 0.4s ease;
  position: relative;
}
.problem-card:hover { background: var(--bg-alt); }
.problem-num {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 24px;
}
.problem-card h3 {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.problem-card p {
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
}

/* =========================================================================
   System (3 capas), featured layered cards
   ========================================================================= */
.system-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.system-grid.system-grid-3 { grid-template-columns: repeat(3, 1fr); }
.system-item {
  background: var(--bg);
  padding: 56px 44px;
  transition: background 0.4s ease;
  position: relative;
  overflow: hidden;
}
.system-item:hover { background: var(--bg-alt); }
.system-item::after {
  content: '';
  position: absolute;
  inset: auto -50% -50% auto;
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}
.system-item:hover::after { opacity: 1; }
.system-item-num {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-block;
}
.system-item h3 {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.system-item p {
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
}
.system-item-uses {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  border-top: 1px solid var(--border);
}
.system-item-uses li {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  padding: 9px 0 9px 18px;
  line-height: 1.5;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.system-item-uses li:last-child { border-bottom: none; }
.system-item-uses li::before {
  content: '\2192';
  position: absolute;
  left: 0;
  top: 9px;
  color: var(--accent);
  font-weight: 600;
}

/* =========================================================================
   Mid CTA
   ========================================================================= */
.mid-cta { padding: 80px 32px; text-align: center; }

/* =========================================================================
   Audience (use cases)
   ========================================================================= */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.audience-item {
  background: var(--bg);
  padding: 40px 36px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  transition: background 0.4s ease;
}
.audience-item:hover { background: var(--bg-alt); }
.audience-bullet {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--accent);
  flex-shrink: 0;
  line-height: 1.6;
  min-width: 32px;
}
.audience-item p {
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.75;
}
.audience-item p strong { color: var(--text); font-weight: 500; }

/* =========================================================================
   Stack / infrastructure
   ========================================================================= */
.stack { text-align: center; }
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.diff-card {
  background: var(--bg);
  padding: 40px 32px;
  transition: background 0.4s ease;
  position: relative;
}
.diff-card:hover { background: var(--bg-alt); }
.diff-card h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.3;
  letter-spacing: -0.005em;
}
.diff-card p {
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
}
.stack-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 44px;
}
.stack-logo {
  background: var(--bg);
  padding: 36px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  transition: background 0.4s ease;
  min-height: 130px;
}
.stack-logo:hover { background: var(--bg-alt); }
.stack-logo img,
.stack-logo svg {
  width: 30px; height: 30px;
  opacity: 0.55;
  transition: opacity 0.3s ease, transform 0.3s ease;
  object-fit: contain;
  flex-shrink: 0;
}
.stack-logo:hover img,
.stack-logo:hover svg { opacity: 1; transform: translateY(-2px); }
.stack-logo span {
  font-family: var(--sans);
  font-size: 0.7rem; font-weight: 500;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
}
.stack-logo:hover span { color: var(--text); }

/* =========================================================================
   Method / phases, timeline-flavored
   ========================================================================= */
.phases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.phase-card {
  background: var(--bg);
  padding: 44px 32px;
  transition: background 0.4s ease;
  position: relative;
}
.phase-card:hover { background: var(--bg-alt); }
.phase-num {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 18px;
  text-transform: uppercase;
}
.phase-card h3 {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.phase-card p {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 22px;
}
.phase-deliverables {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
}
.phase-deliverables li {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-secondary);
  padding: 9px 0 9px 18px;
  line-height: 1.5;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.phase-deliverables li:last-child { border-bottom: none; }
.phase-deliverables li::before {
  content: '→';
  position: absolute;
  left: 0;
  top: 9px;
  color: var(--accent);
  font-weight: 600;
}

/* =========================================================================
   Capabilities (used on ai-setter-os)
   ========================================================================= */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.capabilities-grid > .capability:last-child:nth-child(odd) { grid-column: 1 / -1; }
.capability {
  background: var(--bg);
  padding: 30px 32px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  transition: background 0.4s ease;
}
.capability:hover { background: var(--bg-alt); }
.capability-num {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 1.5px;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 24px;
  padding-top: 4px;
}
.capability p {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.7;
}
.capability p strong { color: var(--text); font-weight: 500; }

/* =========================================================================
   Product feature block (AI Setter OS callout)
   ========================================================================= */
.product-feature {
  padding: 88px 32px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 50%, var(--bg) 100%);
}
.product-feature-inner.product-feature-compact { max-width: 720px; }
.product-feature-glow {
  position: absolute;
  width: 900px; height: 600px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(var(--accent-rgb),0.10) 0%, rgba(var(--purple-rgb),0.06) 35%, transparent 70%);
  pointer-events: none;
}
.product-feature-inner {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}
.product-feature-label {
  font-family: var(--sans);
  font-size: 0.66rem; font-weight: 500;
  letter-spacing: 4px; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.product-feature-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 22px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.product-feature-title em { font-style: italic; color: var(--accent); }
.product-feature-sub {
  font-family: var(--sans);
  font-size: 1rem; font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 auto 28px;
  max-width: 640px;
  text-wrap: pretty;
}
.product-feature-caps {
  font-family: var(--sans);
  font-size: 0.86rem; font-weight: 300;
  color: var(--text-muted);
  line-height: 1.95;
  margin: 0 auto 44px;
  max-width: 620px;
}
.product-feature-caps strong { color: var(--text-secondary); font-weight: 500; }

/* =========================================================================
   About + close
   ========================================================================= */
.about {
  padding: 120px 32px;
  border-top: 1px solid var(--border);
}
.about-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.about-name {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 30px;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.about-name em { font-style: italic; color: var(--accent); }
.about-bio {
  font-family: var(--sans);
  font-size: 0.96rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 18px;
  text-wrap: pretty;
}
.about-bio:last-of-type { margin-bottom: 0; color: var(--text-muted); }

.close-section {
  padding: 160px 32px;
  text-align: center;
  position: relative;
}
.close-glow {
  position: absolute;
  width: 600px; height: 600px;
  bottom: -100px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(var(--accent-rgb),0.06) 0%, rgba(var(--purple-rgb),0.04) 40%, transparent 70%);
  pointer-events: none;
}
[data-theme="light"] .close-glow {
  background: radial-gradient(circle, rgba(var(--accent-rgb),0.10) 0%, rgba(var(--purple-rgb),0.06) 40%, transparent 70%);
}
.close-label {
  font-family: var(--sans);
  font-size: 0.66rem; font-weight: 500;
  letter-spacing: 4px; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 28px;
}
.close-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 24px;
  max-width: 820px;
  margin-left: auto; margin-right: auto;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.close-title em { font-style: italic; color: var(--accent); }
.close-sub {
  font-family: var(--sans);
  font-size: 0.96rem;
  font-weight: 300;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 48px;
  line-height: 1.75;
  text-wrap: pretty;
}

/* =========================================================================
   Footer
   ========================================================================= */
footer {
  padding: 64px 32px 36px;
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
}
[data-theme="light"] footer { background: var(--bg-alt); }
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-col h4 {
  font-family: var(--sans);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 18px;
}
.footer-col p, .footer-col a {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.85;
  text-decoration: none;
  display: block;
  transition: color 0.3s ease;
}
.footer-col a:hover { color: var(--accent); }
.footer-brand {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--text);
  margin-bottom: 14px;
  font-weight: 400;
}
.footer-tagline {
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 300px;
}
.footer-bottom {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

/* =========================================================================
   Animations
   ========================================================================= */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes wordIn {
  from { opacity: 0; transform: translateY(28px) rotateX(-30deg); }
  to { opacity: 1; transform: translateY(0) rotateX(0); }
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(40px) rotateX(8deg); }
  to { opacity: 1; transform: translateY(0) rotateX(0); }
}
@keyframes cardGlow {
  0% { transform: translateX(-20%) rotate(0deg); }
  100% { transform: translateX(20%) rotate(360deg); }
}

.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal.visible .stagger-child {
  animation: fadeUp 0.7s var(--ease-out) forwards;
  opacity: 0;
}
.reveal.visible .stagger-child:nth-child(1) { animation-delay: 0.05s; }
.reveal.visible .stagger-child:nth-child(2) { animation-delay: 0.13s; }
.reveal.visible .stagger-child:nth-child(3) { animation-delay: 0.21s; }
.reveal.visible .stagger-child:nth-child(4) { animation-delay: 0.29s; }
.reveal.visible .stagger-child:nth-child(5) { animation-delay: 0.37s; }
.reveal.visible .stagger-child:nth-child(6) { animation-delay: 0.45s; }

/* Count-up tick */
[data-count] { display: inline-block; }

/* =========================================================================
   WhatsApp FAB (floating action button)
   ========================================================================= */
.wa-fab {
  position: fixed;
  bottom: max(20px, env(safe-area-inset-bottom, 20px));
  right: max(20px, env(safe-area-inset-right, 20px));
  z-index: 95;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(37,211,102,0.35), 0 4px 12px rgba(0,0,0,0.25);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s ease;
}
.wa-fab::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25d366;
  opacity: 0.55;
  z-index: -1;
  animation: waPulse 2s ease-in-out infinite;
}
@keyframes waPulse {
  0% { transform: scale(1); opacity: 0.55; }
  70% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(1.6); opacity: 0; }
}
.wa-fab:hover {
  background: #1ebe5b;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 14px 40px rgba(37,211,102,0.5), 0 6px 16px rgba(0,0,0,0.3);
}
.wa-fab svg { width: 28px; height: 28px; }
@media (max-width: 480px) {
  .wa-fab {
    bottom: max(14px, env(safe-area-inset-bottom, 14px));
    right: max(14px, env(safe-area-inset-right, 14px));
    width: 48px;
    height: 48px;
  }
  .wa-fab svg { width: 24px; height: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .wa-fab::before { animation: none; }
}

/* =========================================================================
   Legal pages
   ========================================================================= */
.legal {
  padding: 140px 32px 100px;
  max-width: var(--maxw-narrow);
  margin: 0 auto;
}
.legal h1 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 8px;
}
.legal-meta {
  font-family: var(--sans);
  font-size: 0.66rem; font-weight: 500;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 40px;
}
.legal h2 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text);
  margin: 36px 0 14px;
}
.legal p, .legal li {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 14px;
}
.legal ul { padding-left: 22px; margin-bottom: 14px; }
.legal a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(var(--accent-rgb),0.3); }
.legal a:hover { border-bottom-color: var(--accent); }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 56px; max-width: 720px; }
  .hero-right { order: 2; }
}
@media (max-width: 1024px) {
  .phases-grid { grid-template-columns: 1fr 1fr; }
  .system-grid, .system-grid.system-grid-3 { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .problems-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: repeat(2, 1fr); }
  .capabilities-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(4, 1fr); }
  .case { grid-template-columns: 1fr; gap: 36px; }
  .case-stats { grid-template-columns: 1fr 1fr; }
  .enterprise-strip-inner { grid-template-columns: 1fr; gap: 32px; padding: 40px 36px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .announcement { padding: 8px 36px; }
  .announcement p { font-size: 0.58rem; letter-spacing: 1px; }
  .announcement-close { right: 10px; }
  nav { padding: 14px 0; top: 30px; }
  .nav-inner { padding: 0 20px; }
  .logo-text { display: none; }
  .nav-back { margin-right: 8px; font-size: 0.6rem; letter-spacing: 1px; }
  .hero {
    min-height: 0;
    padding: 140px 20px 80px;
    align-items: flex-start;
    overflow: visible;
  }
  .hero-fade { display: none; }
  .hero-sub { margin-bottom: 36px; }
  .hero-actions { gap: 12px; }
  .hero-meta { gap: 24px; margin-top: 44px; }
  .hero-meta-num { font-size: 1.4rem; }
  .marquee-track { gap: 36px; animation-duration: 28s; }
  .statement { padding: 80px 20px; }
  .cases { padding: 72px 20px 88px; }
  .case { padding: 36px 24px; }
  .case-stats { grid-template-columns: 1fr 1fr; }
  .enterprise-strip-inner { padding: 32px 24px; gap: 24px; }
  .problems, .system, .audience, .stack, .phases, .differentiators, .capabilities { padding: 72px 20px 90px; }
  .section-header { margin-bottom: 52px; }
  .problem-card, .diff-card, .system-item { padding: 32px 24px; }
  .audience-item { padding: 28px 22px; }
  .capability { padding: 22px 22px; }
  .phase-card { padding: 32px 24px; }
  .phases-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
  .stack-logo { padding: 28px 12px; min-height: 110px; }
  .product-feature { padding: 80px 20px; }
  .about { padding: 80px 20px; }
  .close-section { padding: 100px 20px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .demo-card-body { height: 480px; }
  .demo-card-top { padding: 11px 14px; }
  .demo-card-tabs { padding: 7px 8px; gap: 3px; }
  .demo-card-tab { font-size: 0.54rem; letter-spacing: 0.5px; padding: 6px 4px; }
  .demo-card-foot { padding: 8px 12px; font-size: 0.56rem; }
  /* MOBILE: solo conversaci\00f3n. Sidebar + pipeline ocultos (son wow de desktop) */
  .dc-main { flex-direction: column; min-height: 0; }
  .dc-conversation { flex: 1 1 auto; min-height: 0; width: 100%; }
  .dc-side { display: none; }
  .dc-pipeline { display: none; }
  .dc-messages { padding: 16px 14px 10px; }
  .dc-msg { font-size: 0.74rem; padding: 9px 12px; max-width: 84%; }
  .dc-msg-meta { font-size: 0.56rem; }
  .dc-step-badge { font-size: 0.52rem; padding: 4px 9px; }
  .dc-audio { padding: 8px 10px; }
  .marquee-track { gap: 36px; animation-duration: 30s; }
}
@media (max-width: 480px) {
  .nav-controls { gap: 6px; }
  .nav-cta { font-size: 0.58rem; letter-spacing: 1px; padding: 8px 0; }
  .fc-btn { width: 30px; height: 30px; }
  .fc-icon { width: 14px; height: 14px; }
  .fc-lang { font-size: 13px; }
  .hero-cta, .close-cta, .mid-cta-link, .btn-primary { padding: 16px 30px; font-size: 0.66rem; letter-spacing: 2px; }
  .btn-secondary { padding: 16px 24px; font-size: 0.66rem; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .case-stats { grid-template-columns: 1fr; }
  .demo-card-body { height: 460px; }
  .demo-card-tab { font-size: 0.5rem; padding: 5px 3px; letter-spacing: 0.2px; }
  .demo-card-foot { font-size: 0.52rem; }
  .dc-messages { padding: 14px 12px 10px; }
  .dc-msg { font-size: 0.72rem; padding: 8px 11px; max-width: 86%; }
  .marquee-track { gap: 24px; animation-duration: 24s; }
}

@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; }
  .hero-label, .hero-title, .hero-sub, .hero-actions, .hero-meta { opacity: 1; }
  .hero-title .word { opacity: 1; transform: none; }
  .demo-card { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
}

/* =========================================================================
   Print styles
   ========================================================================= */
@media print {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  html, body { background: #fff !important; color: #000 !important; font-size: 11pt; }
  nav, .announcement, .wa-fab, .skip-link, .floating-controls,
  .hero-bg, .hero-fade, .demo-card-glow, .demo-progress,
  .cases-glow, .close-glow, .product-feature-glow,
  .hero-meta, .demo-card, .marquee, video, canvas {
    display: none !important;
  }
  .hero { min-height: auto !important; padding: 40px 20px !important; }
  a { color: #000 !important; text-decoration: underline; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; color: #555 !important; }
  a[href^="mailto"]::after, a[href^="tel"]::after, a[href^="#"]::after { content: ""; }
  h1, h2, h3 { page-break-after: avoid; }
  .reveal { opacity: 1 !important; transform: none !important; }
  footer { border-top: 1px solid #000 !important; padding-top: 12pt !important; }
}