:root {
  --ink: #120e0b;
  --ink-2: #1c1612;
  --paper: #f4ebe0;
  --muted: #b9a89a;
  --line: rgba(244, 235, 224, 0.12);
  --amber: #f0a202;
  --coral: #ff4d3a;
  --mint: #7dffb3;
  --card: rgba(28, 22, 18, 0.82);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --radius: 22px;
  --font-display: "Bebas Neue", sans-serif;
  --font-body: "Manrope", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--paper);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(240, 162, 2, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 5%, rgba(255, 77, 58, 0.14), transparent 50%),
    linear-gradient(180deg, #0d0a08 0%, var(--ink) 40%, #18120e 100%);
  font-family: var(--font-body);
  line-height: 1.55;
  overflow-x: hidden;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}
.glow {
  position: fixed;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  z-index: 0;
  pointer-events: none;
}
.glow-a { background: var(--amber); top: 20%; left: -10%; }
.glow-b { background: var(--coral); bottom: 10%; right: -15%; }

.topbar, main, .footer { position: relative; z-index: 1; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  backdrop-filter: blur(16px);
  background: rgba(13, 10, 8, 0.72);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}
.brand { display: flex; align-items: baseline; gap: 0.6rem; }
.brand-mark {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  font-size: 1.6rem;
  color: var(--amber);
}
.brand-text { font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.16em; }
.nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.nav a, .footer a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
}
.nav a:hover, .footer a:hover { color: var(--paper); }
.cta-mini {
  border: 1px solid rgba(240, 162, 2, 0.45);
  color: var(--amber);
  text-decoration: none;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.hero, .panel, .close { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.hero { padding: 4.5rem 0 3rem; }
.eyebrow, .kicker, .mono-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3rem, 10vw, 6.4rem);
  line-height: 0.92;
  letter-spacing: 0.02em;
  margin: 0.8rem 0 1.2rem;
}
.hero h1 span { color: var(--coral); }
.lede { max-width: 46rem; color: var(--muted); font-size: 1.05rem; }
.hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; margin: 1.8rem 0 2.2rem; }
.btn {
  border: 0;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  font-family: var(--font-body);
}
.btn.primary { background: linear-gradient(120deg, var(--amber), #ffcf57); color: #1a1208; }
.btn.ghost { background: transparent; color: var(--paper); border: 1px solid var(--line); }
.btn.tiny { padding: 0.5rem 0.85rem; font-size: 0.8rem; background: rgba(240,162,2,0.15); color: var(--amber); margin-top: 0.8rem; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}
.hero-metrics div, .card, .ask-grid .card, .dash-mock, .sim-shell, .algo-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-metrics div { padding: 1rem; }
.hero-metrics strong { display: block; font-size: 1.35rem; margin-bottom: 0.2rem; }
.hero-metrics span { color: var(--muted); font-size: 0.85rem; }

.panel { padding: 3.5rem 0 1rem; }
.section-head { margin-bottom: 1.5rem; max-width: 46rem; }
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin: 0.5rem 0 0.7rem;
}
.section-head p { color: var(--muted); }

.grid-3, .grid-2, .ask-grid, .cinema-grid { display: grid; gap: 1rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.ask-grid { grid-template-columns: repeat(3, 1fr); }
.cinema-grid { grid-template-columns: 1.4fr 1fr 1fr; }
.card { padding: 1.25rem; }
.card.wide { grid-column: 1 / -1; }
.card h3 { margin: 0 0 0.55rem; font-size: 1.05rem; }
.card p, .card li { color: var(--muted); }
.card ul { margin: 0; padding-left: 1.1rem; }
.later { margin-top: 1rem; }
.sisinty-strip { margin: 1rem 0; padding: 1.25rem; }
.sisinty-strip h3 { margin: 0.4rem 0 1rem; }
.sisinty-strip h4 { margin: 0 0 0.4rem; font-size: 0.95rem; color: var(--paper); }
.sisinty-strip a { color: var(--amber); }
.sisinty-strip .grid-3 { margin-top: 0.2rem; }

.brief-list { display: grid; gap: 0.85rem; }
.brief-item .answer { color: var(--muted); margin: 0.4rem 0 0; }
.brief-item .answer strong { color: var(--mint); }

.brief-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
}
.brief-card {
  position: relative;
  padding: 1.2rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(240,162,2,0.1), rgba(18,14,11,0.92));
  min-height: 210px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.brief-card:hover {
  transform: translateY(-4px);
  border-color: rgba(240,162,2,0.45);
}
.brief-num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: rgba(240,162,2,0.35);
  line-height: 1;
}
.brief-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mint);
  margin: 0.35rem 0 0.45rem;
}
.brief-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.02rem;
}
.brief-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.demo-help {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.2rem;
  padding: 1.2rem;
  margin-bottom: 1rem;
}
.demo-help h3 { margin-top: 0; }
.demo-story {
  margin: 0.6rem 0 0;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  background: rgba(240,162,2,0.12);
  border: 1px solid rgba(240,162,2,0.3);
  color: var(--paper);
  font-weight: 600;
}
.demo-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}
.demo-step {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  background: rgba(255,255,255,0.02);
  transition: all 0.25s ease;
}
.demo-step.active {
  color: #1a1208;
  background: var(--amber);
  border-color: var(--amber);
  font-weight: 700;
}
.demo-step.done {
  color: var(--mint);
  border-color: rgba(125,255,179,0.35);
  background: rgba(125,255,179,0.08);
}
.muted-line { color: var(--muted) !important; }

@media (max-width: 960px) {
  .brief-board, .demo-help { grid-template-columns: 1fr; }
}

.flow-strip.big .flow-step {
  background: rgba(240, 162, 2, 0.1);
  border-color: rgba(240, 162, 2, 0.35);
}

.tools-table { padding: 1.2rem; }
.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 0.8rem;
}
.tool-grid div {
  padding: 0.8rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
.tool-grid strong { display: block; margin-bottom: 0.25rem; font-size: 0.9rem; }
.tool-grid span { color: var(--muted); font-size: 0.85rem; }

.pipeline-mock { margin-top: 1rem; }
.pipe-cols {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.55rem;
  margin-top: 0.6rem;
}
.pipe-col {
  padding: 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
  min-height: 78px;
}
.pipe-col strong { display: block; }
.pipe-col span { color: var(--muted); font-size: 0.8rem; }

@media (max-width: 960px) {
  .tool-grid, .pipe-cols { grid-template-columns: 1fr 1fr; }
}

.agent-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.agent {
  padding: 1.1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(240,162,2,0.08), rgba(18,14,11,0.9));
  min-height: 170px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.agent:hover { transform: translateY(-4px); border-color: rgba(240,162,2,0.45); }
.agent .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--mint);
  letter-spacing: 0.08em;
}
.agent h3 { margin: 0.45rem 0; font-size: 1rem; }
.agent p { margin: 0; color: var(--muted); font-size: 0.88rem; }

.flow-strip {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}
.flow-step {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  font-size: 0.85rem;
}
.flow-arrow { color: var(--amber); }

.strategy-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1rem;
}
.ranked { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.ranked li { margin-bottom: 0.55rem; }
.ranked strong { color: var(--paper); }
.prompt-card {
  padding: 1.1rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255,77,58,0.35);
  background: rgba(255,77,58,0.08);
}
.prompt-card pre {
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #ffd7cf;
  margin: 0.6rem 0 0;
}

.algo-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.8rem; }
.algo-tab {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
}
.algo-tab.active {
  color: #1a1208;
  background: var(--amber);
  border-color: var(--amber);
}
.algo-panel { padding: 1.3rem; min-height: 170px; }
.algo-panel h3 { margin-top: 0; }
.algo-panel ul { color: var(--muted); }

.sim-shell { padding: 1.2rem; }
.sim-controls {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 0.8rem;
  align-items: end;
  margin-bottom: 1rem;
}
.sim-controls label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.sim-controls select {
  background: #0f0c0a;
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  font-family: var(--font-body);
}
.sim-stage { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1rem; }
.sim-log {
  min-height: 280px;
  max-height: 360px;
  overflow: auto;
  padding: 1rem;
  border-radius: 16px;
  background: #0a0807;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.log-line { margin-bottom: 0.55rem; color: #d8c7b8; }
.log-line .agent-name { color: var(--mint); }
.log-line.done { color: var(--amber); }
.sim-output h4 { margin: 0 0 0.5rem; }
.sim-output ul { margin: 0.4rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.muted { color: var(--muted); }

.dash-mock {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 320px;
  overflow: hidden;
}
.dash-mock aside {
  border-right: 1px solid var(--line);
  padding: 1.1rem;
  background: rgba(0,0,0,0.25);
}
.dash-mock ul { list-style: none; margin: 0.8rem 0 0; padding: 0; }
.dash-mock li {
  padding: 0.55rem 0.65rem;
  border-radius: 10px;
  color: var(--muted);
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
}
.dash-mock li.on { background: rgba(240,162,2,0.15); color: var(--amber); }
.dash-main { padding: 1.1rem; }
.dash-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
}
.dash-kpis div {
  padding: 0.8rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
.dash-kpis span { display: block; color: var(--muted); font-size: 0.75rem; }
.dash-kpis strong { font-size: 1.3rem; }
.dash-chart {
  margin-top: 1rem;
  height: 140px;
  border-radius: 14px;
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-items: end;
  gap: 0.35rem;
  padding: 0.8rem;
}
.dash-chart span {
  display: block;
  border-radius: 8px 8px 2px 2px;
  background: linear-gradient(180deg, var(--coral), var(--amber));
  opacity: 0.85;
}
.dash-note { color: var(--muted); font-size: 0.88rem; margin-top: 0.9rem; }

.timeline { display: grid; gap: 0.9rem; }
.t-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  padding: 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
}
.t-item .when {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--amber);
  letter-spacing: 0.04em;
}
.t-item ul { margin: 0.4rem 0 0; padding-left: 1.1rem; color: var(--muted); }

.close {
  padding: 4rem 0 3rem;
  text-align: left;
}
.close h2 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 0.95;
  margin: 0 0 1rem;
}
.close p { color: var(--muted); max-width: 40rem; }
.signoff { color: var(--amber) !important; font-family: var(--font-mono); font-size: 0.85rem; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.5rem 2rem;
  color: var(--muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 960px) {
  .nav { display: none; }
  .hero-metrics, .grid-3, .agent-board, .cinema-grid, .strategy-grid, .sim-controls, .sim-stage, .dash-mock, .dash-kpis, .ask-grid, .grid-2, .t-item {
    grid-template-columns: 1fr;
  }
  .hero { padding-top: 3rem; }
}