/* ============================================================================
   BİY — tasarım sistemi
   Premium otomotiv-koyu · marka yeşili + ıslak cam parıltısı
   İmza: "gleam sweep" (camdan geçen cila/su parıltısı)
   ========================================================================== */

:root {
  /* Zemin & yüzeyler */
  --bg: #06110C;
  --bg-2: #091712;
  --surface: #0D2018;
  --surface-2: #12291D;
  --line: rgba(214, 245, 232, 0.10);
  --line-strong: rgba(214, 245, 232, 0.18);

  /* Marka */
  --brand: #19A974;
  --brand-bright: #35E29A;
  --brand-deep: #0E6E48;

  /* Su / cam / krom parıltısı (soğuk highlight) */
  --glass: #BFE9FF;
  --foam: #CFF5E6;

  /* Metin */
  --ink: #F3F8F5;
  --muted: #9BB2A8;
  --muted-2: #6B837A;

  /* Ölçek */
  --maxw: 1160px;
  --r-sm: 12px;
  --r: 18px;
  --r-lg: 26px;
  --r-xl: 34px;

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------------------------------------------------------------- reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: var(--brand-bright); color: #04110B; }

/* Ambient: hafif yeşil ışık lekesi + ince ızgara */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(60% 40% at 78% -5%, rgba(53, 226, 154, 0.16), transparent 60%),
    radial-gradient(50% 45% at 10% 8%, rgba(25, 169, 116, 0.12), transparent 60%),
    var(--bg);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; opacity: 0.4;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 78%);
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.eyebrow {
  font-family: var(--font-display);
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--brand-bright);
  display: inline-flex; align-items: center; gap: 9px;
}
.eyebrow::before { content: ""; width: 22px; height: 1.5px; background: var(--brand); display: inline-block; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; }
.sheen { /* ıslak cam metin dolgusu */
  background: linear-gradient(92deg, var(--ink) 0%, var(--foam) 45%, var(--glass) 60%, var(--ink) 78%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.grad { color: var(--brand-bright); }

/* --------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 52px; padding: 0 24px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(180deg, var(--brand-bright), var(--brand));
  color: #04130C;
  box-shadow: 0 12px 34px -12px rgba(53, 226, 154, 0.6), inset 0 1px 0 rgba(255,255,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 44px -12px rgba(53, 226, 154, 0.75); }
.btn-ghost { background: rgba(255,255,255,0.04); color: var(--ink); border: 1px solid var(--line-strong); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--brand); background: rgba(53,226,154,0.06); }
.btn-sm { height: 44px; padding: 0 18px; font-size: 14px; }

/* --------------------------------------------------------------- gleam signature */
@keyframes sweep {
  0% { transform: translateX(-120%) skewX(-18deg); }
  100% { transform: translateX(320%) skewX(-18deg); }
}
.gleam { position: relative; overflow: hidden; }
.gleam::after {
  content: ""; position: absolute; top: 0; left: 0; width: 45%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(191,233,255,0.22), rgba(255,255,255,0.5), transparent);
  transform: translateX(-120%) skewX(-18deg); pointer-events: none;
}
.gleam:hover::after { animation: sweep 0.9s var(--ease); }

/* ============================================================= NAV */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent; transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); background: color-mix(in srgb, var(--bg) 88%, transparent); }
.nav-in { display: flex; align-items: center; gap: 18px; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; }
.brand .mark { width: 34px; height: 34px; }
.brand b { font-size: 21px; letter-spacing: 0.5px; }
.brand span { display: block; font-size: 10px; font-weight: 500; color: var(--muted); letter-spacing: 0.08em; margin-top: -3px; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav-links a { font-size: 14.5px; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-strong); }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px auto; border-radius: 2px; }

/* ============================================================= HERO */
.hero { position: relative; padding: 70px 0 90px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(38px, 6.4vw, 76px); }
.hero .lead { color: var(--muted); font-size: clamp(16px, 1.8vw, 19px); max-width: 30ch; margin: 22px 0 30px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 30px; margin-top: 40px; flex-wrap: wrap; }
.hero-trust .stat b { font-family: var(--font-display); font-size: 26px; display: block; letter-spacing: -0.02em; }
.hero-trust .stat span { font-size: 12.5px; color: var(--muted-2); }

/* telefon maketi (app ana ekranını yansıtır) */
.phone {
  position: relative; width: 300px; max-width: 100%; margin: 0 auto;
  aspect-ratio: 300 / 610; border-radius: 44px; padding: 12px;
  background: linear-gradient(160deg, #16342a, #0a1a13);
  border: 1px solid var(--line-strong);
  box-shadow: 0 50px 90px -40px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.08);
}
.phone-screen { width: 100%; height: 100%; border-radius: 33px; overflow: hidden; background: #06110C; position: relative; }
.pf-top { padding: 16px 16px 0; display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 11px; }
.pf-hero {
  margin: 12px; padding: 16px; border-radius: 18px;
  background: linear-gradient(150deg, #17402c, #0b1f16);
  border: 1px solid var(--line);
}
.pf-hero h4 { font-size: 15px; line-height: 1.15; }
.pf-hero p { font-size: 10px; color: var(--muted); margin: 4px 0 12px; }
.pf-btn { height: 34px; border-radius: 10px; background: linear-gradient(180deg, var(--brand-bright), var(--brand)); color: #04130C; font-weight: 700; font-size: 11px; display: flex; align-items: center; justify-content: center; }
.pf-row { display: flex; gap: 8px; margin: 12px; }
.pf-card { flex: 1; height: 96px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); padding: 10px; }
.pf-card .cap { height: 46px; border-radius: 9px; background: linear-gradient(150deg, var(--brand), #10402c); margin-bottom: 8px; }
.pf-card b { font-size: 10px; } .pf-card small { font-size: 9px; color: var(--brand-bright); display: block; }
.droplets { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: -1; }
.droplets i { position: absolute; width: 6px; height: 6px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, var(--glass), rgba(53,226,154,0.2)); opacity: 0.5; animation: drip linear infinite; }
@keyframes drip { 0% { transform: translateY(-10vh); opacity: 0; } 10% { opacity: 0.6; } 100% { transform: translateY(110vh); opacity: 0; } }

/* ============================================================= SECTIONS */
section { position: relative; }
.section { padding: 96px 0; }
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head h2 { font-size: clamp(28px, 4vw, 46px); margin: 16px 0 14px; }
.section-head p { color: var(--muted); font-size: 16.5px; }

/* adımlar (gerçek sıra → numaralı) */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step {
  position: relative; padding: 30px 26px 28px; border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--line); overflow: hidden;
}
.step .no { font-family: var(--font-display); font-size: 54px; font-weight: 700; line-height: 1;
  background: linear-gradient(180deg, var(--brand-bright), transparent 90%); -webkit-background-clip: text; background-clip: text; color: transparent; opacity: 0.9; }
.step h3 { font-size: 20px; margin: 14px 0 8px; }
.step p { color: var(--muted); font-size: 14.5px; }
.step .line { position: absolute; left: 0; bottom: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--brand), var(--brand-bright)); transition: width 0.6s var(--ease); }
.step:hover .line { width: 100%; }

/* özellik kartları */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature {
  padding: 26px; border-radius: var(--r-lg); background: var(--surface);
  border: 1px solid var(--line); transition: transform 0.3s var(--ease), border-color 0.3s;
}
.feature:hover { transform: translateY(-4px); border-color: var(--brand); }
.feature .ic { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: rgba(53,226,154,0.12); color: var(--brand-bright); margin-bottom: 16px; }
.feature .ic svg { width: 24px; height: 24px; }
.feature h3 { font-size: 18px; margin-bottom: 7px; }
.feature p { color: var(--muted); font-size: 14px; }

/* hizmet fiyat kartları */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.svc { padding: 24px 22px; border-radius: var(--r-lg); border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface), var(--bg-2)); }
.svc .ic { color: var(--brand-bright); margin-bottom: 14px; }
.svc .ic svg { width: 28px; height: 28px; }
.svc h3 { font-size: 16px; }
.svc .price { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-top: 10px; }
.svc .price small { font-size: 12px; color: var(--muted); font-weight: 500; }

/* iki-taraflı: yıkamacı ol */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  border-radius: var(--r-xl); padding: 48px; border: 1px solid var(--line);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(53,226,154,0.10), transparent 55%),
    linear-gradient(180deg, var(--surface), var(--bg-2)); }
.split h2 { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 14px; }
.split p { color: var(--muted); margin-bottom: 12px; }
.checklist { list-style: none; display: grid; gap: 12px; margin: 22px 0 28px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; }
.checklist .tick { flex: none; width: 22px; height: 22px; border-radius: 50%; background: rgba(53,226,154,0.14);
  color: var(--brand-bright); display: grid; place-items: center; margin-top: 1px; }
.earn { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.earn .cell { padding: 22px; border-radius: var(--r); background: rgba(255,255,255,0.02); border: 1px solid var(--line); }
.earn .cell b { font-family: var(--font-display); font-size: 30px; display: block; }
.earn .cell span { font-size: 12.5px; color: var(--muted); }

/* SSS */
.faq { max-width: 820px; margin: 0 auto; }
.q { border-bottom: 1px solid var(--line); }
.q button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 22px 4px; text-align: left; font-family: var(--font-display); font-size: 17px; font-weight: 500; }
.q .plus { flex: none; width: 26px; height: 26px; position: relative; }
.q .plus::before, .q .plus::after { content: ""; position: absolute; inset: 0; margin: auto; background: var(--brand-bright); transition: transform 0.3s var(--ease); }
.q .plus::before { width: 14px; height: 2px; } .q .plus::after { width: 2px; height: 14px; }
.q.open .plus::after { transform: scaleY(0); }
.q .a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.q .a p { padding: 0 4px 22px; color: var(--muted); font-size: 15px; }

/* İndir bandı */
.cta-band { position: relative; overflow: hidden; border-radius: var(--r-xl); padding: 64px 48px; text-align: center;
  background: radial-gradient(120% 140% at 50% 0%, rgba(53,226,154,0.18), transparent 60%), linear-gradient(180deg, var(--surface-2), var(--bg-2));
  border: 1px solid var(--line-strong); }
.cta-band h2 { font-size: clamp(28px, 4vw, 48px); margin-bottom: 14px; }
.cta-band p { color: var(--muted); margin-bottom: 28px; }
.stores { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.store { display: inline-flex; align-items: center; gap: 12px; height: 58px; padding: 0 22px; border-radius: 15px;
  background: #fff; color: #08130d; }
.store svg { width: 26px; height: 26px; }
.store b { font-family: var(--font-display); font-size: 16px; display: block; line-height: 1; }
.store span { font-size: 10.5px; opacity: 0.7; }

/* ============================================================= FOOTER */
.footer { border-top: 1px solid var(--line); padding: 64px 0 34px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.footer h5 { font-family: var(--font-display); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; }
.footer a { display: block; color: var(--muted); font-size: 14px; padding: 5px 0; transition: color 0.2s; }
.footer a:hover { color: var(--brand-bright); }
.footer .about p { color: var(--muted); font-size: 14px; max-width: 34ch; margin: 14px 0; }
.legal-note { font-size: 12.5px; color: var(--muted-2); line-height: 1.7; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted-2); font-size: 13px; }
.ph { color: var(--brand-bright); background: rgba(53,226,154,0.08); padding: 0 5px; border-radius: 4px; }

/* ============================================================= LEGAL/İÇERİK SAYFALARI */
.page-hero { padding: 64px 0 34px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(30px, 5vw, 52px); }
.page-hero p { color: var(--muted); margin-top: 12px; }
.doc { padding: 50px 0 30px; }
.doc-wrap { max-width: 820px; }
.doc h2 { font-size: 22px; margin: 34px 0 12px; }
.doc h3 { font-size: 17px; margin: 22px 0 8px; color: var(--foam); }
.doc p, .doc li { color: var(--muted); font-size: 15.5px; margin-bottom: 12px; }
.doc ul, .doc ol { padding-left: 22px; margin-bottom: 14px; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0 22px; }
.doc th, .doc td { text-align: left; padding: 12px 14px; border: 1px solid var(--line); font-size: 14px; }
.doc th { background: var(--surface); color: var(--ink); font-family: var(--font-display); }
.callout { padding: 16px 18px; border-radius: 14px; border: 1px solid var(--line-strong);
  background: rgba(53,226,154,0.06); font-size: 14px; color: var(--foam); margin: 18px 0; }

/* ============================================================= REVEAL / MOTION */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; } .reveal.d2 { transition-delay: 0.16s; } .reveal.d3 { transition-delay: 0.24s; }

/* ============================================================= RESPONSIVE */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .phone { order: -1; width: 260px; }
  .steps, .feature-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; padding: 34px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-cta .btn:not(.nav-toggle) { display: none; }
  .nav-links.open { display: flex; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column;
    align-items: flex-start; gap: 4px; padding: 16px 22px 22px; background: var(--bg-2); border-bottom: 1px solid var(--line); }
  .nav-links.open a { padding: 10px 0; width: 100%; }
}
@media (max-width: 560px) {
  .section { padding: 68px 0; }
  .svc-grid, .footer-grid, .earn { grid-template-columns: 1fr; }
  .split { padding: 26px; }
  .cta-band { padding: 44px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .gleam:hover::after { animation: none; }
}