/* =============================================================
   Zorax.ai — Playbook page (playbook/style.css)
   Immersive animated theme that matches /a/a.
   ============================================================= */

:root {
  --bg: #0a0c10;
  --bg-2: #0f1218;
  --bg-3: #14171f;
  --panel: rgba(20, 23, 31, 0.72);
  --panel-2: rgba(28, 32, 42, 0.7);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #e8ecf2;
  --text-dim: #b1b8c4;
  --text-muted: #7e8696;
  --accent: #17f0f1;
  --accent-2: #b8956a;
  --accent-soft: rgba(23, 240, 241, 0.12);
  --accent-glow: 0 0 60px rgba(23, 240, 241, 0.18);
  --purple: #8b5cf6;
  --purple-soft: rgba(139, 92, 246, 0.14);
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-1: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-2: 0 20px 60px rgba(0, 0, 0, 0.55);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 480ms;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fa;
    --bg-2: #eef0f5;
    --bg-3: #ffffff;
    --panel: rgba(255, 255, 255, 0.78);
    --panel-2: rgba(255, 255, 255, 0.7);
    --border: rgba(15, 18, 24, 0.08);
    --border-strong: rgba(15, 18, 24, 0.18);
    --text: #0f1218;
    --text-dim: #4a5260;
    --text-muted: #6e7686;
    --accent: #0bbfc0;
    --accent-2: #8a6b3f;
    --accent-soft: rgba(11, 191, 192, 0.1);
    --accent-glow: 0 0 60px rgba(11, 191, 192, 0.2);
    --purple-soft: rgba(139, 92, 246, 0.1);
    --shadow-1: 0 10px 30px rgba(15, 18, 24, 0.08);
    --shadow-2: 0 20px 60px rgba(15, 18, 24, 0.12);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color 200ms var(--ease); }
a:hover { color: var(--accent-2); }
code { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 0.88em; padding: 1px 6px; background: var(--accent-soft); border-radius: 6px; color: var(--accent); }

/* ---------- Background canvas ---------- */
#bg-canvas {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}
@media (prefers-color-scheme: light) { #bg-canvas { opacity: 0.35; } }

/* ---------- Header ---------- */
.app-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 14px 28px;
  background: rgba(10, 12, 16, 0.65);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid var(--border);
  transition: padding 280ms var(--ease), background 280ms var(--ease);
}
.app-header.scrolled { padding: 8px 28px; background: rgba(10, 12, 16, 0.85); }
@media (prefers-color-scheme: light) {
  .app-header { background: rgba(246, 247, 250, 0.75); }
  .app-header.scrolled { background: rgba(246, 247, 250, 0.92); }
}
.header-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; letter-spacing: 0.4px; }
.brand-logo { width: 32px; height: 32px; border-radius: 8px; box-shadow: var(--accent-glow); }
.header-text { font-size: 1.05rem; }
.header-dot { color: var(--accent); }
.nav-tabs { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.nav-btn {
  font: inherit;
  font-size: 0.82rem; font-weight: 600;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  transition: color 220ms var(--ease), background 220ms var(--ease), border-color 220ms var(--ease), transform 220ms var(--ease);
}
.nav-btn:hover { color: var(--text); background: var(--panel-2); }
.nav-btn.active {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--border-strong);
  box-shadow: 0 0 0 1px var(--accent-soft), 0 6px 20px rgba(23, 240, 241, 0.15);
}
.header-cta {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; font-weight: 700;
  color: var(--bg);
  background: var(--accent);
  padding: 9px 16px;
  border-radius: 999px;
  box-shadow: 0 6px 22px rgba(23, 240, 241, 0.35);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(23, 240, 241, 0.45); color: var(--bg); }

/* ---------- Scroll progress bar ---------- */
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; background: transparent; z-index: 60; pointer-events: none; }
#scroll-bar {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  width: 0%;
  transition: width 80ms linear;
  box-shadow: 0 0 12px var(--accent);
}

/* ---------- Main layout ---------- */
.main-wrapper {
  position: relative; z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 28px 80px;
}
.page-tab-content { display: none; animation: fadeUp 700ms var(--ease) both; }
.page-tab-content.active { display: block; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 60px 0 40px; }
.hero-compact { padding: 32px 0 28px; }
.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--accent);
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--panel-2);
  margin-bottom: 24px;
  animation: floaty 5s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -1.2px;
  margin: 0 0 24px;
  background: linear-gradient(180deg, #ffffff 0%, #c8cdd8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@media (prefers-color-scheme: light) {
  .hero-title { background: linear-gradient(180deg, #0f1218 0%, #4a5260 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
}
.hero-accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tagline { max-width: 760px; margin: 0 auto 36px; font-size: clamp(1rem, 1.3vw, 1.15rem); color: var(--text-dim); }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-primary, .cta-secondary {
  font: inherit; font-weight: 700; font-size: 0.95rem;
  padding: 13px 22px; border-radius: 999px; cursor: pointer; border: 1px solid transparent;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease), background 240ms var(--ease);
}
.cta-primary {
  color: var(--bg);
  background: var(--accent);
  box-shadow: 0 10px 30px rgba(23, 240, 241, 0.35);
}
.cta-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(23, 240, 241, 0.5); color: var(--bg); }
.cta-secondary {
  color: var(--text);
  background: var(--panel-2);
  border-color: var(--border-strong);
}
.cta-secondary:hover { background: var(--bg-3); transform: translateY(-2px); }

/* ---------- Stat cards ---------- */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 40px 0 60px;
}
.stat-card {
  text-align: center;
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  position: relative;
  overflow: hidden;
  transition: transform 360ms var(--ease), border-color 360ms var(--ease), box-shadow 360ms var(--ease);
}
.stat-card::before {
  content: ""; position: absolute; inset: -1px;
  background: conic-gradient(from 0deg, var(--accent), transparent 30%, var(--accent-2) 70%, transparent);
  border-radius: var(--radius);
  opacity: 0; transition: opacity 360ms var(--ease);
  z-index: -1;
}
.stat-card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-2); }
.stat-card:hover::before { opacity: 0.6; }
.stat-number { font-size: 2.4rem; font-weight: 900; color: var(--accent); margin-bottom: 4px; letter-spacing: -1px; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); letter-spacing: 0.3px; }

/* ---------- Section title ---------- */
.section-title { text-align: center; margin: 60px 0 32px; }
.section-title h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 900; letter-spacing: -0.6px; margin: 0 0 8px;
}
.section-title p { color: var(--text-dim); margin: 0; font-size: 1rem; }

/* ---------- Feature grid ---------- */
.grid-3 {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  position: relative;
  transition: transform 360ms var(--ease), border-color 360ms var(--ease), box-shadow 360ms var(--ease), background 360ms var(--ease);
  overflow: hidden;
}
.feature-box:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-2); background: var(--panel-2); }
.feature-box::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 480ms var(--ease);
}
.feature-box:hover::after { transform: scaleX(1); }
.feature-icon-wrap {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 12px;
  margin-bottom: 16px;
}
.feature-title { font-size: 1.1rem; font-weight: 800; margin: 0 0 8px; }
.feature-desc { color: var(--text-dim); font-size: 0.93rem; margin: 0; }

/* ---------- Mode rail (sticky pill nav) ---------- */
.mode-rail {
  position: sticky; top: 64px; z-index: 20;
  display: flex; gap: 8px;
  overflow-x: auto;
  margin: 8px 0 32px;
  padding: 10px 4px;
  background: rgba(10, 12, 16, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 999px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.mode-rail::-webkit-scrollbar { display: none; }
@media (prefers-color-scheme: light) { .mode-rail { background: rgba(246, 247, 250, 0.7); } }
.mode-rail-btn {
  flex: 0 0 auto;
  font: inherit;
  font-size: 0.82rem; font-weight: 600;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 220ms var(--ease), background 220ms var(--ease), border-color 220ms var(--ease);
}
.mode-rail-btn:hover { color: var(--text); background: var(--panel-2); }
.mode-rail-btn.active {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 6px 18px rgba(23, 240, 241, 0.35);
}

/* ---------- Mode sections (the meat of the Playbook) ---------- */
.mode-section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin: 24px 0;
  position: relative;
  overflow: hidden;
  scroll-margin-top: 140px;
  transition: border-color 360ms var(--ease), box-shadow 360ms var(--ease), transform 360ms var(--ease);
}
.mode-section::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(800px 200px at 0% 0%, var(--accent-soft), transparent 60%);
  pointer-events: none;
  opacity: 0.5;
}
.mode-section:hover { border-color: var(--border-strong); box-shadow: var(--shadow-1); }
.mode-section.is-active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent-soft), var(--shadow-2); }
.mode-section-head { display: flex; gap: 18px; align-items: flex-start; margin-bottom: 22px; position: relative; z-index: 1; }
.mode-icon {
  width: 56px; height: 56px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 14px;
  flex-shrink: 0;
  box-shadow: 0 0 30px rgba(23, 240, 241, 0.18);
}
.mode-eyebrow { font-size: 0.72rem; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.mode-title { font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 900; margin: 0 0 6px; letter-spacing: -0.4px; }
.mode-tag { color: var(--text-dim); margin: 0; font-size: 0.98rem; max-width: 680px; }
.mode-body {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 22px;
  position: relative; z-index: 1;
}
.mode-prompt {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.mode-prompt-label { font-size: 0.72rem; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.mode-prompt-text { font-size: 0.95rem; line-height: 1.55; color: var(--text); }
.mode-output {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.mode-output-head { display: flex; align-items: center; gap: 6px; padding: 8px 12px; background: var(--bg-2); border-bottom: 1px solid var(--border); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.mode-output-label { margin-left: 8px; font-size: 0.78rem; color: var(--text-muted); font-family: "SF Mono", Menlo, Consolas, monospace; }
.mode-output-body {
  margin: 0;
  padding: 18px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-wrap: break-word;
  flex: 1;
}
.mode-output-body.code { color: var(--text); }
.mode-output-body.code .kw { color: #c084fc; font-weight: 700; }
.mode-output-body.code .fn { color: #38bdf8; }
.mode-output-body.code .str { color: #86efac; }
.mode-output-body.code .num { color: #fbbf24; }
.mode-output-body.roast { color: var(--text); font-family: inherit; font-size: 1rem; line-height: 1.6; }
.mode-output-body.persona { color: var(--text); font-family: inherit; font-size: 1rem; line-height: 1.6; font-style: italic; }
.mini-chart {
  display: flex; align-items: flex-end; justify-content: space-around;
  gap: 14px;
  padding: 24px 18px 32px;
  border-bottom: 1px solid var(--border);
}
.bar {
  --h: 50%;
  position: relative;
  width: 56px;
  height: var(--h);
  background: linear-gradient(180deg, var(--accent), rgba(23, 240, 241, 0.4));
  border-radius: 8px 8px 4px 4px;
  box-shadow: 0 6px 18px rgba(23, 240, 241, 0.2);
  animation: barGrow 900ms var(--ease) both;
  transform-origin: bottom;
}
.bar.highlight { background: linear-gradient(180deg, var(--purple), rgba(139, 92, 246, 0.4)); box-shadow: 0 8px 22px rgba(139, 92, 246, 0.35); }
.bar-label {
  position: absolute; bottom: -22px; left: 0; right: 0;
  font-size: 0.7rem; color: var(--text-muted); text-align: center; font-family: "SF Mono", Menlo, Consolas, monospace;
}
@keyframes barGrow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}
.bar:nth-child(1) { animation-delay: 0ms; }
.bar:nth-child(2) { animation-delay: 100ms; }
.bar:nth-child(3) { animation-delay: 200ms; }
.bar:nth-child(4) { animation-delay: 300ms; }

/* ---------- CTA strip ---------- */
.cta-strip {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  margin: 60px 0 30px;
  padding: 30px 36px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}
.cta-strip h3 { margin: 0 0 6px; font-size: 1.4rem; font-weight: 900; }
.cta-strip p { margin: 0; color: var(--text-dim); }

/* ---------- Architecture diagram ---------- */
.diagram-flow {
  display: flex; align-items: stretch; justify-content: space-between;
  gap: 10px;
  margin: 32px 0 60px;
  flex-wrap: wrap;
}
.diagram-node {
  flex: 1 1 180px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
  position: relative;
  transition: transform 360ms var(--ease), border-color 360ms var(--ease);
}
.diagram-node:hover { transform: translateY(-3px); border-color: var(--accent); }
.diagram-node h4 { margin: 0 0 6px; color: var(--accent); font-size: 0.95rem; font-weight: 800; }
.diagram-node p { margin: 0; font-size: 0.82rem; color: var(--text-dim); }
.diagram-node strong { color: var(--text); }
.diagram-arrow { align-self: center; flex: 0 0 36px; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); position: relative; }
.diagram-pulse {
  position: absolute; top: 50%; left: 0;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 1.6s linear infinite;
}
@keyframes pulse {
  0% { left: 0; opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

/* ---------- Shortcuts ---------- */
.shortcuts-wrap { max-width: 760px; margin: 0 auto; }
.shortcut-group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 18px;
}
.shortcut-cat { margin: 0 0 12px; font-size: 1rem; font-weight: 800; color: var(--accent); letter-spacing: 0.4px; }
.shortcut-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 0; border-top: 1px dashed var(--border); }
.shortcut-row:first-of-type { border-top: 0; }
.shortcut-desc { color: var(--text-dim); font-size: 0.95rem; }
.shortcut-keys { display: inline-flex; align-items: center; gap: 4px; }
.shortcut-plus { color: var(--text-muted); font-size: 0.9rem; padding: 0 2px; }
.kbd {
  display: inline-block;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem; font-weight: 700;
  color: var(--text);
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 3px 8px;
  min-width: 22px; text-align: center;
}

/* ---------- Footer ---------- */
.footer-section {
  margin-top: 100px; padding: 60px 20px 40px;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}
.ornament { font-size: 1.4rem; color: var(--accent); margin-bottom: 12px; animation: floaty 4s ease-in-out infinite; }
.footer-quote { font-style: italic; color: var(--accent); max-width: 600px; margin: 0 auto 18px; font-size: 0.95rem; }

/* ---------- Reveal-on-scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
.reveal.in-view { opacity: 1; transform: translateY(0); }
@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; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Mobile ---------- */
@media (max-width: 980px) {
  .mode-body { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .diagram-flow { flex-direction: column; }
  .diagram-arrow { width: 2px; height: 28px; align-self: center; }
  .diagram-pulse { animation: pulse-down 1.6s linear infinite; }
  @keyframes pulse-down { 0% { top: 0; opacity: 1; } 100% { top: 100%; opacity: 0; } }
}
@media (max-width: 640px) {
  .app-header { padding: 10px 16px; flex-wrap: wrap; gap: 8px; }
  .nav-tabs { order: 3; flex-basis: 100%; justify-content: center; }
  .nav-btn { font-size: 0.74rem; padding: 6px 10px; }
  .main-wrapper { padding: 32px 16px 60px; }
  .hero { padding: 30px 0 20px; }
  .grid-3 { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 18px 10px; }
  .stat-number { font-size: 1.9rem; }
  .section-title { margin: 50px 0 24px; }
  .mode-section { padding: 24px 18px; }
  .mode-section-head { flex-direction: column; gap: 12px; }
  .mode-rail { top: 96px; padding: 8px 4px; }
  .mode-rail-btn { font-size: 0.78rem; padding: 6px 10px; }
  .cta-strip { padding: 24px 20px; flex-direction: column; text-align: center; }
  .shortcut-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer-section { margin-top: 60px; }
}