:root {
  --bg: #0b0f1a;
  --surface: #151b2b;
  --surface-high: #1f2740;
  --primary: #00e5ff;
  --accent: #ff2e88;
  --success: #39ff88;
  --warning: #ffd60a;
  --danger: #ff3b3b;
  --text: #f5f7ff;
  --muted: #8a93b2;
  --radius: 22px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Arka plan ışıkları ve ızgara */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(600px 400px at 85% 10%, rgba(0, 229, 255, 0.16), transparent 70%),
    radial-gradient(500px 400px at 5% 40%, rgba(255, 46, 136, 0.12), transparent 70%),
    radial-gradient(700px 500px at 50% 110%, rgba(57, 255, 136, 0.08), transparent 70%);
}

.bg-glow::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
}

/* Üst menü */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(11, 15, 26, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.brand img { width: 36px; height: 36px; border-radius: 10px; }
.brand span { color: var(--primary); }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

.lang {
  display: flex;
  border: 1px solid var(--surface-high);
  border-radius: 999px;
  padding: 3px;
}

.lang button {
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.lang button.active { background: var(--surface-high); color: var(--text); }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-block: 72px 96px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
}

.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
  animation: blink 1.6s infinite;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 20px 0;
  font-weight: 900;
}

.grad {
  background: linear-gradient(90deg, var(--primary), var(--success) 50%, var(--warning));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { color: var(--muted); font-size: 1.2rem; max-width: 520px; margin: 0 0 32px; }

.cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #00b3ff);
  color: #001018;
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.3);
}

.btn-ghost { border: 1px solid var(--surface-high); color: var(--text); }

.btn small { display: block; font-size: 0.7rem; font-weight: 600; opacity: 0.75; line-height: 1; }
.btn .play-icon { width: 22px; height: 22px; }

.stats { display: flex; gap: 32px; margin-top: 40px; }
.stat b { display: block; font-size: 1.8rem; font-weight: 800; }
.stat span { color: var(--muted); font-size: 0.9rem; }

/* Telefon + demo */
.phone-wrap { position: relative; display: flex; justify-content: center; }

.phone-wrap::before {
  content: "";
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.35), transparent 65%);
  filter: blur(30px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.phone {
  position: relative;
  width: 300px;
  height: 610px;
  border-radius: 46px;
  padding: 12px;
  background: linear-gradient(145deg, #2a3350, #10141f);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  transform: rotate(-3deg);
}

.screen {
  position: relative;
  height: 100%;
  border-radius: 36px;
  overflow: hidden;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: 44px 16px 16px;
  user-select: none;
}

.notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 24px;
  border-radius: 20px;
  background: #000;
}

.hud { display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.hud .lives { color: var(--danger); letter-spacing: 2px; }
.hud .score { font-size: 1.4rem; }
.hud .streak { color: var(--warning); font-size: 0.85rem; }

.prompt {
  margin: 14px 0;
  padding: 10px 12px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--surface-high);
  display: flex;
  align-items: center;
  gap: 12px;
}

.prompt svg { width: 38px; height: 38px; flex: none; }
.prompt small { display: block; color: var(--muted); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; }
.prompt b { font-size: 0.95rem; }

.field {
  position: relative;
  flex: 1;
  border-radius: 20px;
  background: radial-gradient(circle at 50% 40%, #121a2e, var(--bg));
  border: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
  display: grid;
  place-items: center;
}

.field .shape {
  width: 140px;
  height: 140px;
  animation: pop 0.18s ease-out;
  filter: drop-shadow(0 0 22px var(--glow, transparent));
}

.field .hint { color: var(--muted); font-size: 0.95rem; text-align: center; padding: 0 20px; white-space: pre-line; }

.field.hit { animation: flash-ok 0.35s; }
.field.miss { animation: shake 0.35s; }

.float {
  position: absolute;
  font-weight: 800;
  font-size: 1.4rem;
  pointer-events: none;
  animation: rise 0.7s forwards;
}

.demo-caption { text-align: center; color: var(--muted); font-size: 0.8rem; margin-top: 12px; }

/* Bölümler */
section.block { padding-block: 88px; }

.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head .tag { color: var(--accent); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.12em; text-transform: uppercase; }
.section-head h2 { font-size: clamp(2rem, 4vw, 2.8rem); margin: 8px 0 12px; line-height: 1.15; letter-spacing: -0.01em; }
.section-head p { color: var(--muted); margin: 0; font-size: 1.05rem; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }

.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface), rgba(21, 27, 43, 0.6));
  border: 1px solid var(--surface-high);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover { transform: translateY(-4px); border-color: rgba(0, 229, 255, 0.35); }
.card h3 { margin: 14px 0 8px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--muted); }

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 3rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.05);
}

.icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  background: rgba(0, 229, 255, 0.1);
}

.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.mode {
  padding: 36px;
  overflow: hidden;
}

.mode::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -80px;
  bottom: -80px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--c), transparent 70%);
  opacity: 0.25;
}

.mode.survival { --c: var(--primary); }
.mode.reaction { --c: var(--success); }
.mode h3 { font-size: 1.6rem; }

.mode ul { list-style: none; padding: 0; margin: 20px 0 0; }
.mode li { padding: 6px 0 6px 28px; position: relative; color: #d6dbef; }
.mode li::before { content: "✓"; position: absolute; left: 0; color: var(--c); font-weight: 800; }

.reaction-demo {
  margin-top: 24px;
  height: 120px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.1rem;
  cursor: pointer;
  user-select: none;
  background: var(--danger);
  color: #fff;
  transition: background 0.05s;
  position: relative;
  z-index: 1;
}

.reaction-demo.wait { background: var(--danger); }
.reaction-demo.go { background: var(--success); color: #002a12; }
.reaction-demo.idle, .reaction-demo.done { background: var(--surface-high); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* Liderlik */
.board {
  max-width: 640px;
  margin: 0 auto;
  padding: 12px;
}

.board-tabs { display: flex; gap: 8px; padding: 8px 8px 16px; }

.board-tabs button {
  flex: 1;
  border: 1px solid var(--surface-high);
  background: none;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  padding: 10px;
  border-radius: 12px;
  cursor: pointer;
}

.board-tabs button.active { background: var(--surface-high); color: var(--text); border-color: transparent; }

.board ol { list-style: none; margin: 0; padding: 0; }

.board li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 14px;
}

.board li:nth-child(odd) { background: rgba(255, 255, 255, 0.02); }
.board .rank { width: 32px; font-weight: 800; color: var(--muted); text-align: center; }
.board li:nth-child(1) .rank { color: var(--warning); }
.board li:nth-child(2) .rank { color: #c9d1e8; }
.board li:nth-child(3) .rank { color: #e0935a; }
.board .name { flex: 1; font-weight: 600; }
.board .pts { font-weight: 800; color: var(--primary); font-variant-numeric: tabular-nums; }

.board .empty { text-align: center; color: var(--muted); padding: 36px 16px; }
.board .empty b { display: block; color: var(--text); font-size: 1.2rem; margin-bottom: 4px; }

/* SSS */
.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 12px; }

.faq details {
  background: var(--surface);
  border: 1px solid var(--surface-high);
  border-radius: 16px;
  padding: 18px 22px;
}

.faq summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--primary); font-size: 1.3rem; line-height: 1; transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); margin: 12px 0 0; }

/* Son çağrı */
.final {
  text-align: center;
  padding: 64px 32px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 229, 255, 0.25), transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(255, 46, 136, 0.22), transparent 50%),
    var(--surface);
  border: 1px solid var(--surface-high);
}

.final img { width: 88px; height: 88px; border-radius: 24px; box-shadow: 0 0 40px rgba(0, 229, 255, 0.4); }
.final h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 20px 0 8px; }
.final p { color: var(--muted); margin: 0 0 28px; }

footer {
  margin-top: 88px;
  padding: 32px 0;
  border-top: 1px solid var(--surface-high);
  color: var(--muted);
  font-size: 0.9rem;
}

footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--muted); margin-left: 20px; text-decoration: none; }
footer a:hover { color: var(--text); }

/* Görünür olunca beliren içerik */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s, transform 0.6s; }
.reveal.in { opacity: 1; transform: none; }

/* Yasal sayfalar */
.doc { max-width: 820px; padding: 48px 24px 32px; }
.doc h1 { font-size: 2.2rem; margin: 8px 0 4px; }
.doc h2 { margin-top: 32px; font-size: 1.25rem; color: var(--primary); }
.doc p, .doc li { color: #d6dbef; }
.doc .updated { color: var(--muted); }
.back { display: inline-block; margin-bottom: 16px; text-decoration: none; }

@keyframes blink { 50% { opacity: 0.3; } }
@keyframes pop { from { transform: scale(0.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes rise { to { transform: translateY(-60px); opacity: 0; } }
@keyframes shake { 20%, 60% { transform: translateX(-8px); } 40%, 80% { transform: translateX(8px); } }
@keyframes flash-ok { 0% { box-shadow: inset 0 0 0 0 rgba(57, 255, 136, 0); } 30% { box-shadow: inset 0 0 60px 0 rgba(57, 255, 136, 0.45); } 100% { box-shadow: inset 0 0 0 0 rgba(57, 255, 136, 0); } }

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-block-start: 48px; }
  .lead { margin-left: auto; margin-right: auto; }
  .cta, .stats { justify-content: center; }
  .phone { transform: none; }
  .steps, .features { grid-template-columns: 1fr 1fr; }
  .modes { grid-template-columns: 1fr; }
  .nav-links a { display: none; }
}

@media (max-width: 600px) {
  .steps, .features { grid-template-columns: 1fr; }
  .stats { gap: 20px; }
  footer .wrap { flex-direction: column; align-items: center; }
  footer a { margin: 0 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}