/* FanFin web sitesi: tek dosya, sistem yazı tipi (dış istek yok), açık/koyu tema, azaltılmış hareket desteği */
:root {
  --brand: #0a4fff;
  --brand-2: #00b2ff;
  --brand-ink: #0838b8;
  --bg: #f6f8fc;
  --surface: #ffffff;
  --surface-2: #eef2fa;
  --ink: #0d1b3a;
  --ink-2: #4a5878;
  --line: #dfe5f1;
  --glow: rgba(10, 79, 255, .18);
  --shadow: 0 1px 2px rgba(13, 27, 58, .06), 0 14px 40px rgba(13, 27, 58, .10);
  --radius: 22px;
  --max: 1160px;
}
:root[data-theme="dark"] {
  --bg: #080d1c;
  --surface: #101831;
  --surface-2: #162043;
  --ink: #eaf0ff;
  --ink-2: #9fb0d6;
  --line: #22305c;
  --glow: rgba(47, 123, 255, .28);
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 18px 48px rgba(0, 0, 0, .45);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #080d1c; --surface: #101831; --surface-2: #162043; --ink: #eaf0ff; --ink-2: #9fb0d6; --line: #22305c;
    --glow: rgba(47, 123, 255, .28);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 18px 48px rgba(0, 0, 0, .45);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(var(--max), 100% - 40px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--brand); color: #fff; padding: 8px 14px; border-radius: 10px; z-index: 100; }
.skip:focus { left: 8px; }

/* Üst menü */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(160%) blur(16px); background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 20px; letter-spacing: -.01em; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { width: 36px; height: 36px; }
.menu { display: flex; gap: 6px; margin-left: auto; align-items: center; }
.menu a.link { color: var(--ink-2); padding: 9px 13px; border-radius: 12px; font-weight: 600; font-size: 15px; }
.menu a.link:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
.icon-btn { width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); display: grid; place-items: center; cursor: pointer; }
.icon-btn:hover { background: var(--surface-2); }
.burger { display: none; margin-left: auto; }
.btn { display: inline-flex; align-items: center; gap: 10px; border: 0; cursor: pointer; font: inherit; font-weight: 700; padding: 13px 22px; border-radius: 14px; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn.primary { background: linear-gradient(135deg, var(--brand), #2f7bff); color: #fff; box-shadow: 0 10px 28px var(--glow); }
.btn.ghost { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.btn.soon { background: var(--surface); color: var(--ink); border: 1px dashed var(--line); cursor: default; }
.btn.soon:hover { transform: none; }
.pill { display: inline-flex; gap: 8px; align-items: center; padding: 6px 14px; border-radius: 999px; background: color-mix(in srgb, var(--brand) 12%, transparent); color: var(--brand); font-weight: 700; font-size: 13px; letter-spacing: .02em; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 84px 0 56px; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto -10%; height: 90%; background:
  radial-gradient(40% 50% at 18% 20%, var(--glow), transparent 70%),
  radial-gradient(36% 46% at 82% 10%, color-mix(in srgb, var(--brand-2) 22%, transparent), transparent 70%); pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.02fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(38px, 5.6vw, 66px); line-height: 1.04; letter-spacing: -.035em; margin: 18px 0 20px; font-weight: 850; }
.hero h1 em { font-style: normal; background: linear-gradient(120deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: clamp(17px, 2vw, 20px); color: var(--ink-2); max-width: 540px; margin: 0 0 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 30px; color: var(--ink-2); font-size: 14px; font-weight: 600; }
.trust span::before { content: "✓"; color: #1fb86a; font-weight: 900; margin-right: 8px; }

/* Hero animasyonu: iki telefon, kilit, sunucu (8 sn). Ölçü birimi --u: kapsayıcı genişliğinin 560'ta biri */
.flow-card { background: color-mix(in srgb, var(--surface) 88%, transparent); border: 1px solid var(--line); border-radius: 30px; box-shadow: var(--shadow); padding: 14px; }
.flow { container-type: inline-size; position: relative; width: 100%; aspect-ratio: 560 / 340; --u: calc(100cqw / 560); }
.flow > * { position: absolute; }
.f-phone { top: calc(var(--u) * 96); width: calc(var(--u) * 84); height: calc(var(--u) * 156); border-radius: calc(var(--u) * 20); border: calc(var(--u) * 3) solid color-mix(in srgb, var(--ink) 55%, transparent); background: color-mix(in srgb, var(--brand) 6%, var(--surface)); }
.f-phone::before { content: ""; position: absolute; top: calc(var(--u) * 8); left: 50%; width: calc(var(--u) * 20); height: calc(var(--u) * 4); border-radius: 4px; background: color-mix(in srgb, var(--ink) 40%, transparent); transform: translateX(-50%); }
.f-phone.l { left: calc(var(--u) * 20); }
.f-phone.r { right: calc(var(--u) * 20); }
.f-label { top: calc(var(--u) * 258); font-size: calc(var(--u) * 13); color: var(--ink-2); font-weight: 600; width: calc(var(--u) * 100); text-align: center; }
.f-label.l { left: calc(var(--u) * 12); }
.f-label.r { right: calc(var(--u) * 12); }
.mini { position: absolute; left: calc(var(--u) * 8); bottom: calc(var(--u) * 16); font-size: calc(var(--u) * 11); font-weight: 700; padding: calc(var(--u) * 5) calc(var(--u) * 8); border-radius: calc(var(--u) * 8); white-space: nowrap; overflow: hidden; }
.mini.out { background: var(--brand); color: #fff; width: 0; animation: typing 8s infinite; }
.mini.in { background: color-mix(in srgb, var(--ink) 14%, transparent); color: var(--ink); opacity: 0; animation: recv 8s infinite; }
@keyframes typing { 0%,2% { width: 0; opacity: 1 } 10% { width: calc(var(--u) * 58); opacity: 1 } 15% { width: calc(var(--u) * 58); opacity: 1 } 17%,100% { width: calc(var(--u) * 58); opacity: 0 } }
@keyframes recv { 0%,83% { opacity: 0; transform: scale(.7) } 87%,96% { opacity: 1; transform: scale(1) } 99%,100% { opacity: 0 } }

.f-lock { left: calc(50% - var(--u) * 42); top: calc(var(--u) * 62); width: calc(var(--u) * 84); height: calc(var(--u) * 84); border-radius: 50%; border: calc(var(--u) * 3) solid color-mix(in srgb, var(--brand) 60%, transparent); background: color-mix(in srgb, var(--brand) 12%, transparent); display: grid; place-items: center; animation: lockglow 8s infinite; z-index: 3; }
.f-lock svg { width: 46%; height: 46%; color: var(--brand); }
.f-ring { left: calc(50% - var(--u) * 42); top: calc(var(--u) * 62); width: calc(var(--u) * 84); height: calc(var(--u) * 84); border-radius: 50%; border: calc(var(--u) * 3) solid var(--brand); opacity: 0; animation: ring 8s infinite; z-index: 2; }
@keyframes lockglow { 0%,38%,56%,100% { background: color-mix(in srgb, var(--brand) 12%, transparent); border-color: color-mix(in srgb, var(--brand) 60%, transparent) } 42%,52% { background: color-mix(in srgb, var(--brand) 22%, transparent); border-color: var(--brand) } }
@keyframes ring { 0%,43% { opacity: 0; transform: scale(1) } 44% { opacity: .9; transform: scale(1) } 58%,100% { opacity: 0; transform: scale(1.8) } }

.f-server { left: calc(50% - var(--u) * 32); top: calc(var(--u) * 220); width: calc(var(--u) * 64); height: calc(var(--u) * 64); border-radius: calc(var(--u) * 16); border: calc(var(--u) * 3) solid color-mix(in srgb, var(--ink) 45%, transparent); background: color-mix(in srgb, var(--ink) 5%, var(--surface)); display: grid; place-items: center; }
.f-server svg { width: 52%; height: 52%; color: color-mix(in srgb, var(--ink) 55%, transparent); }
.f-slabel { left: calc(50% - var(--u) * 40); top: calc(var(--u) * 290); width: calc(var(--u) * 80); text-align: center; font-size: calc(var(--u) * 12); font-weight: 600; color: var(--ink-2); }

/* Uçan mesaj: telefon -> kilit (küçülür, şifrelenir) -> sağ telefon */
.fly { left: calc(var(--u) * 112); top: calc(var(--u) * 158); width: calc(var(--u) * 104); height: calc(var(--u) * 36); border-radius: calc(var(--u) * 14); background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: calc(var(--u) * 14); opacity: 0; transform-origin: center; animation: fly 8s infinite; z-index: 1; white-space: nowrap; }
.fly .plain, .fly .cipher { grid-area: 1 / 1; }
.fly .cipher { opacity: 0; letter-spacing: .12em; animation: cipher 8s infinite; }
.fly .plain { animation: plain 8s infinite; }
@keyframes fly {
  0%,15% { opacity: 0; transform: translate(0, 0) scale(1); background: var(--brand) }
  16% { opacity: 1; transform: translate(0, 0) scale(1) }
  38% { opacity: 1; transform: translate(calc(var(--u) * 116), calc(var(--u) * -48)) scale(.5) }
  44% { opacity: 1; transform: translate(calc(var(--u) * 116), calc(var(--u) * -48)) scale(.5); background: var(--brand) }
  46%,60% { background: color-mix(in srgb, var(--ink) 20%, var(--surface)); color: var(--ink) }
  52% { opacity: 1; transform: translate(calc(var(--u) * 116), calc(var(--u) * -48)) scale(.5) }
  80% { opacity: 1; transform: translate(calc(var(--u) * 236), 0) scale(1); background: color-mix(in srgb, var(--ink) 20%, var(--surface)); color: var(--ink) }
  84%,100% { opacity: 0; transform: translate(calc(var(--u) * 236), 0) scale(1) }
}
@keyframes plain { 0%,44% { opacity: 1 } 46%,100% { opacity: 0 } }
@keyframes cipher { 0%,44% { opacity: 0 } 46%,83% { opacity: 1 } 84%,100% { opacity: 0 } }

/* Sunucudaki şifreli kopya: kilitten düşer, durur, karşıya ulaşınca şeritler dökülerek silinir */
.copy { left: calc(50% - var(--u) * 24); top: calc(var(--u) * 100); width: calc(var(--u) * 48); height: calc(var(--u) * 22); display: flex; opacity: 0; animation: copy 8s infinite; z-index: 4; }
.copy i { flex: 1; background: color-mix(in srgb, var(--ink) 40%, transparent); animation: shred 8s infinite; }
.copy i:nth-child(1) { animation-delay: 0s; border-radius: 6px 0 0 6px }
.copy i:nth-child(2) { animation-delay: .08s }
.copy i:nth-child(3) { animation-delay: .16s }
.copy i:nth-child(4) { animation-delay: .24s }
.copy i:nth-child(5) { animation-delay: .32s; border-radius: 0 6px 6px 0 }
@keyframes copy { 0%,49% { opacity: 0; transform: translateY(0) } 51% { opacity: 1; transform: translateY(0) } 60%,96% { opacity: 1; transform: translateY(calc(var(--u) * 138)) } 99%,100% { opacity: 0; transform: translateY(calc(var(--u) * 138)) } }
@keyframes shred { 0%,83% { transform: translateY(0) scaleY(1); opacity: 1 } 95%,100% { transform: translateY(calc(var(--u) * 22)) scaleY(.2); opacity: 0 } }

/* Bölümler */
section { padding: 88px 0; position: relative; }
.eyebrow { color: var(--brand); font-weight: 800; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
h2 { font-size: clamp(30px, 4vw, 46px); line-height: 1.1; letter-spacing: -.03em; margin: 12px 0 14px; font-weight: 820; }
.sub { color: var(--ink-2); font-size: 18px; max-width: 680px; margin: 0; }
.center { text-align: center; }
.center .sub { margin-inline: auto; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 46px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: 0 1px 2px rgba(13, 27, 58, .04); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--brand) 35%, var(--line)); }
.card .ico { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: linear-gradient(135deg, color-mix(in srgb, var(--brand) 16%, transparent), color-mix(in srgb, var(--brand-2) 18%, transparent)); color: var(--brand); margin-bottom: 18px; }
.card .ico svg { width: 26px; height: 26px; }
.card h3 { margin: 0 0 8px; font-size: 20px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--ink-2); font-size: 15.5px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 46px; counter-reset: s; }
.step { position: relative; padding: 30px 28px 28px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: -18px; left: 26px; width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, var(--brand), #2f7bff); color: #fff; font-weight: 800; box-shadow: 0 8px 20px var(--glow); }
.step h3 { margin: 6px 0 8px; font-size: 19px; }
.step p { margin: 0; color: var(--ink-2); font-size: 15.5px; }

/* Güvenlik bandı */
.secure { background: linear-gradient(160deg, #06102b, #0b2a78 60%, #0a4fff); color: #eaf0ff; overflow: hidden; }
.secure::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(70% 80% at 70% 30%, #000, transparent 75%); -webkit-mask-image: radial-gradient(70% 80% at 70% 30%, #000, transparent 75%); }
.secure .wrap { position: relative; }
.secure .eyebrow { color: #7fb2ff; }
.secure .sub { color: #b9c8ee; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
.fact { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 20px; padding: 24px; backdrop-filter: blur(8px); }
.fact b { display: block; font-size: 19px; margin-bottom: 8px; }
.fact span { color: #b9c8ee; font-size: 15px; }

/* Planlar */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 46px; max-width: 880px; margin-inline: auto; }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: 26px; padding: 32px; }
.plan.pro { border: 2px solid var(--brand); box-shadow: 0 20px 50px var(--glow); position: relative; }
.plan.pro .badge { position: absolute; top: -14px; right: 24px; background: linear-gradient(135deg, var(--brand), #2f7bff); color: #fff; font-weight: 800; font-size: 12px; padding: 6px 14px; border-radius: 999px; letter-spacing: .06em; }
.plan h3 { margin: 0 0 6px; font-size: 24px; }
.plan > p { margin: 0 0 18px; color: var(--ink-2); }
.plan ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.plan li::before { content: "✓"; color: #1fb86a; font-weight: 900; margin-right: 10px; }

/* SSS */
.faq { max-width: 800px; margin: 44px auto 0; display: grid; gap: 12px; }
details { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 4px 22px; }
summary { cursor: pointer; font-weight: 700; padding: 18px 0; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-size: 24px; color: var(--brand); transition: transform .25s; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 0 0 18px; color: var(--ink-2); }

.final { text-align: center; }
.final .box { background: linear-gradient(135deg, var(--brand), #2f7bff 60%, var(--brand-2)); border-radius: 34px; padding: 64px 28px; color: #fff; box-shadow: 0 30px 70px var(--glow); }
.final h2 { margin-top: 0; }
.final p { color: rgba(255,255,255,.85); font-size: 18px; max-width: 560px; margin: 0 auto 26px; }
.final .btn.soon { background: rgba(255,255,255,.14); color: #fff; border: 1px dashed rgba(255,255,255,.5); }

/* Alt bilgi */
footer { border-top: 1px solid var(--line); padding: 44px 0 56px; color: var(--ink-2); font-size: 14.5px; }
footer .cols { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
footer h4 { color: var(--ink); margin: 0 0 12px; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; }
footer a { color: var(--ink-2); display: block; padding: 4px 0; }
footer a:hover { color: var(--brand); }
footer .fine { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; }

/* Yasal / destek sayfaları */
.doc { padding: 56px 0 90px; }
.doc .wrap { width: min(820px, 100% - 40px); }
.doc h1 { font-size: clamp(32px, 4.4vw, 46px); letter-spacing: -.03em; margin: 12px 0 8px; line-height: 1.1; }
.doc .meta { color: var(--ink-2); margin-bottom: 36px; }
.doc section { padding: 0; margin: 0 0 30px; }
.doc h2 { font-size: 22px; margin: 0 0 10px; letter-spacing: -.01em; }
.doc p, .doc li { color: var(--ink-2); }
.doc ul { padding-left: 22px; margin: 8px 0 0; }
.doc .toc { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.doc .toc a { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); font-weight: 600; font-size: 14px; }
.doc .toc a:hover, .doc .toc a[aria-current] { color: var(--brand); border-color: var(--brand); text-decoration: none; }
.notice { background: color-mix(in srgb, var(--brand) 8%, var(--surface)); border: 1px solid color-mix(in srgb, var(--brand) 30%, var(--line)); border-radius: 18px; padding: 18px 22px; color: var(--ink); }

/* Görünme animasyonu */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s } .reveal.d2 { transition-delay: .16s } .reveal.d3 { transition-delay: .24s }

@media (max-width: 960px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .grid3, .steps { grid-template-columns: 1fr 1fr; }
  .facts { grid-template-columns: 1fr 1fr; }
  footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .menu { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--bg); border-bottom: 1px solid var(--line); padding: 12px 20px 18px; }
  .menu.open { display: flex; }
  .burger { display: grid; margin-left: 0; }
  #theme { margin-left: auto; }
  .nav .wrap { gap: 12px; }
  section { padding: 64px 0; }
  .hero { padding-top: 54px; }
  .grid3, .steps, .facts, .plans { grid-template-columns: 1fr; }
  .final .box { padding: 46px 20px; border-radius: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .mini.out, .mini.in, .fly, .fly .plain, .fly .cipher, .copy, .copy i, .f-lock, .f-ring { animation: none; }
  .mini.out { width: calc(var(--u) * 58); opacity: 1; }
  .fly { opacity: 1; transform: translate(calc(var(--u) * 116), calc(var(--u) * -48)) scale(.5); }
}