/* Kavan — Okulumsun şirket sitesi
   Tasarım dili ürünün kendisinden: sıcak beyaz zemin, mor birincil renk,
   maskot turuncusu, amber "tekrar dene", yeşil onay. Çocuk geri bildiriminde kırmızı yok. */

:root {
  --bg: #FFFDF8;
  --surface: #FFFFFF;
  --ink: #2B2B2B;
  --ink-soft: #5c5c5c;
  --purple: #7C3AED;
  --purple-dark: #6D28D9;
  --orange: #F97316;
  --orange-deep: #EA580C;
  --amber: #F59E0B;
  --amber-soft: #FEF3C7;
  --green: #16A34A;
  --blue: #1D4ED8;
  --border: #f0e8d8;
  --radius: 28px;
  --radius-sm: 18px;
  --shadow: 0 18px 50px -22px rgba(124, 58, 237, 0.25);
  --font: "Andika", "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 780px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 253, 248, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-sun { width: 38px; height: 38px; }
.brand-text { font-weight: 700; font-size: 24px; letter-spacing: -0.5px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a:not(.btn) { text-decoration: none; color: var(--ink-soft); font-weight: 600; font-size: 16px; }
.nav-links a:not(.btn):hover { color: var(--purple); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 26px; height: 3px; background: var(--ink); border-radius: 3px; margin: 5px 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 700;
  padding: 16px 34px; border-radius: 999px; font-size: 17px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--purple); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--purple-dark); }
.btn-ghost { border-color: var(--purple); color: var(--purple); background: transparent; }
.btn-ghost:hover { background: rgba(124, 58, 237, 0.08); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-sm { padding: 10px 22px; font-size: 15px; }
.btn-lg { padding: 18px 44px; font-size: 19px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 0; overflow: hidden; }
.hero-inner {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center;
}
.eyebrow {
  color: var(--orange-deep); font-weight: 700; font-size: 15px;
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 14px;
}
.hero h1 { font-size: clamp(40px, 5.4vw, 64px); line-height: 1.12; letter-spacing: -1.5px; margin-bottom: 20px; }
.lede { font-size: 20px; color: var(--ink-soft); margin-bottom: 30px; max-width: 34em; }
.lede strong { color: var(--ink); }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.hero-ticks { list-style: none; display: flex; gap: 20px; flex-wrap: wrap; font-size: 15px; color: var(--ink-soft); font-weight: 600; }
.hero-ticks li { position: relative; padding-left: 24px; }
.hero-ticks li::before {
  content: ""; position: absolute; left: 4px; top: 3px;
  width: 7px; height: 13px;
  border: solid var(--green); border-width: 0 3px 3px 0;
  transform: rotate(45deg); border-radius: 2px;
}

.hero-art { display: flex; justify-content: center; }
.mascot-big { width: min(340px, 70vw); height: auto; animation: float 5s ease-in-out infinite; }
.mascot-big .rays { transform-origin: 100px 100px; animation: spin 40s linear infinite; }
.mascot-big .eye { animation: blink 4.6s infinite; transform-origin: 100px 92px; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes blink { 0%, 93%, 100% { transform: scaleY(1); } 96% { transform: scaleY(0.1); } }

/* ---------- Stats ---------- */
.stats {
  max-width: 1120px; margin: 64px auto 0; padding: 0 24px 72px;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
}
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 20px 12px; text-align: center;
}
.stat strong { display: block; font-size: 34px; color: var(--purple); letter-spacing: -1px; }
.stat span { font-size: 13.5px; color: var(--ink-soft); line-height: 1.45; display: block; margin-top: 6px; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-tint { background: #FBF6EA; }
.section h2 { font-size: clamp(30px, 3.6vw, 44px); letter-spacing: -1px; line-height: 1.2; margin-bottom: 18px; }
.section-lede { font-size: 20px; color: var(--ink-soft); max-width: 44em; margin-bottom: 44px; }
.hl-amber { background: var(--amber-soft); color: #92400E; padding: 0 10px; border-radius: 12px; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 28px; box-shadow: 0 10px 30px -18px rgba(43, 43, 43, 0.25);
}
.card h3 { font-size: 21px; margin-bottom: 12px; color: var(--purple-dark); }
.card p { color: var(--ink-soft); font-size: 17px; }
.card strong { color: var(--ink); }

/* ---------- Facts ---------- */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 44px; }
.fact { background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border); padding: 26px 24px; }
.fact strong { display: block; font-size: 38px; color: var(--orange-deep); letter-spacing: -1px; margin-bottom: 8px; }
.fact .unit { font-size: 22px; }
.fact span:last-child { color: var(--ink-soft); font-size: 16px; display: block; }

.mascot-note {
  display: flex; gap: 20px; align-items: center;
  background: var(--amber-soft); border-radius: var(--radius); padding: 26px 30px;
}
.mascot-small { width: 64px; height: 64px; flex-shrink: 0; }
.mascot-note p { font-size: 17px; }
.mascot-note strong { color: #92400E; }

/* ---------- Topics ---------- */
.topics { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 44px; }
.topic {
  background: #F5EFE0; color: var(--ink-soft); border-radius: 999px;
  padding: 12px 24px; font-weight: 700; font-size: 16px;
}
.topic-open { background: var(--orange); color: #fff; }

.contract {
  background: var(--surface); border: 2px solid var(--purple); border-radius: var(--radius);
  padding: 36px; box-shadow: var(--shadow);
}
.contract h3 { font-size: 24px; margin-bottom: 14px; }
.contract p { color: var(--ink-soft); margin-bottom: 12px; }
.contract-note { font-size: 15px; border-top: 1px dashed var(--border); padding-top: 14px; margin-bottom: 0; }

/* ---------- Bands ---------- */
.band { padding: 72px 0; }
.band-purple { background: var(--purple); color: #fff; }
.band-purple p { color: rgba(255, 255, 255, 0.85); }
.band-amber { background: var(--amber-soft); }
.band-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}
.band-inner h2 { font-size: clamp(28px, 3.2vw, 40px); letter-spacing: -0.8px; margin-bottom: 12px; }
.band-inner p { font-size: 18px; max-width: 34em; }
.band-ticks { list-style: none; display: grid; gap: 12px; font-weight: 700; font-size: 17px; }
.band-ticks li { position: relative; padding-left: 28px; }
.band-ticks li::before {
  content: ""; position: absolute; left: 4px; top: 4px;
  width: 8px; height: 14px;
  border: solid #fff; border-width: 0 3px 3px 0;
  transform: rotate(45deg); border-radius: 2px;
}

/* ---------- Code ---------- */
.code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 19px;
  background: var(--ink); color: #A7F3D0; border-radius: var(--radius-sm);
  padding: 22px 28px; margin: 0 0 26px; overflow-x: auto;
}

/* ---------- Roadmap ---------- */
.roadmap { list-style: none; display: grid; gap: 16px; margin-bottom: 32px; }
.roadmap li {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 22px 26px; font-size: 17px; position: relative; padding-left: 58px;
}
.roadmap li::before {
  content: ""; position: absolute; left: 24px; top: 22px;
  width: 16px; height: 16px; border-radius: 50%;
  border: 3px solid var(--ink-soft);
}
.roadmap li.done::before { background: var(--green); border-color: var(--green); }
.roadmap li.next::before {
  border-color: var(--orange);
  background: linear-gradient(90deg, var(--orange) 50%, transparent 50%);
}
.roadmap-note { color: var(--ink-soft); font-size: 17px; }
.roadmap-note strong { color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 48px 0 28px; margin-top: 40px; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; margin-bottom: 28px; }
.footer-brand p { color: var(--ink-soft); font-size: 15px; margin-top: 10px; }
.footer-links { display: flex; gap: 24px; align-items: flex-start; }
.footer-links a { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: 16px; }
.footer-links a:hover { color: var(--purple); }
.copyright { text-align: center; color: var(--ink-soft); font-size: 14px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .mascot-big, .mascot-big .rays, .mascot-big .eye { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .mascot-big { width: 200px; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .cards-3, .cards-2, .facts { grid-template-columns: 1fr; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg); flex-direction: column; padding: 20px 24px 28px;
    border-bottom: 1px solid var(--border); gap: 16px; align-items: stretch;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .site-header .nav { position: relative; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  body { font-size: 16px; }
}