:root{
  --bg:        #07080f;
  --bg-2:      #0c0e1c;
  --surface:   #12152a;
  --line:      rgba(255,255,255,.08);
  --text:      #e9ecff;
  --muted:     #9aa0c4;
  --brand:     #7c8cff;
  --brand-2:   #b06bff;
  --blue:      #3b82f6;
  --violet:    #8b5cf6;
  --grad:      linear-gradient(120deg, #8b5cf6 0%, #6366f1 45%, #38bdf8 100%);
  --shadow:    0 24px 60px -18px rgba(99,102,241,.55);
  --radius:    18px;
  --maxw:      1180px;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family:'Montserrat', system-ui, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.grad{
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px; font-weight:600; font-size:14px;
  padding:11px 20px; border-radius:999px;
  cursor:pointer; transition:transform .18s ease, box-shadow .25s ease, background .2s ease;
  white-space:nowrap;
}
.btn--lg{ padding:15px 30px; font-size:16px; }
.btn--primary{ background:var(--grad); color:#fff; box-shadow:var(--shadow); }
.btn--primary:hover{ transform:translateY(-2px); box-shadow:0 28px 70px -16px rgba(124,140,255,.7); }
.btn--ghost{ background:rgba(255,255,255,.04); border:1px solid var(--line); color:var(--text); }
.btn--ghost:hover{ background:rgba(255,255,255,.09); transform:translateY(-2px); }

.pill{
  display:inline-flex; align-items:center; gap:6px;
  font-size:13px; font-weight:600; color:#cdd2ff;
  padding:7px 14px; border-radius:999px;
  background:rgba(124,140,255,.12); border:1px solid rgba(124,140,255,.25);
}
.pill--soft{ background:rgba(255,255,255,.05); border-color:var(--line); color:var(--muted); }

/* ---------- NAV ---------- */
.nav{
  position:fixed; inset:0 0 auto 0; z-index:50;
  transition:background .3s ease, border-color .3s ease, backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(7,8,15,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav__inner{
  max-width:var(--maxw); margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px;
}
.brand{ display:inline-flex; align-items:center; gap:10px; font-weight:800; font-size:20px; letter-spacing:.3px; }
.brand__mark{ display:grid; place-items:center; width:36px; height:36px; border-radius:11px;
  background:rgba(124,140,255,.12); border:1px solid rgba(124,140,255,.25); }
.brand__name b{ background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.nav__links{ display:flex; gap:30px; font-size:14px; font-weight:500; color:var(--muted); }
.nav__links a{ transition:color .2s; }
.nav__links a:hover{ color:var(--text); }
.nav__actions{ display:flex; gap:12px; }

/* ---------- HERO / STAGE ---------- */
.hero{ height:320vh; position:relative; }          /* scroll uzunluğu */
.hero__stage{
  position:sticky; top:0; height:100vh; overflow:hidden;
  display:grid; place-items:center;
  perspective:1400px;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(124,140,255,.18), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.stage__glow{
  position:absolute; width:760px; height:760px; border-radius:50%;
  background:radial-gradient(circle, rgba(139,92,246,.35), transparent 62%);
  filter:blur(20px); opacity:.8; pointer-events:none;
  transform:translateZ(-200px);
}
.stage__grid{
  position:absolute; inset:0; pointer-events:none; opacity:.35;
  background-image:
    linear-gradient(rgba(124,140,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,140,255,.07) 1px, transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(circle at 50% 45%, #000 30%, transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 50% 45%, #000 30%, transparent 75%);
}

/* hero copy */
.hero__copy{
  position:absolute; top:18vh; left:0; right:0;
  text-align:center; z-index:5; padding:0 20px;
  will-change:transform,opacity;
}
.hero__title{ font-size:clamp(34px,6vw,68px); font-weight:800; line-height:1.04; margin:18px 0 16px; letter-spacing:-1px; }
.hero__sub{ max-width:560px; margin:0 auto 26px; color:var(--muted); font-size:clamp(15px,1.6vw,18px); }
.hero__cta{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* 3D scene → Higgsfield video */
.scene{
  position:absolute; inset:0;
  display:grid; place-items:center;
}
.hero__video{
  width:min(105vw, 1280px); height:100%;
  object-fit:cover; object-position:center;
  pointer-events:none; user-select:none;
  /* kenarları zemine kaynat */
  -webkit-mask-image:radial-gradient(130% 90% at 50% 45%, #000 60%, transparent 100%);
  mask-image:radial-gradient(130% 90% at 50% 45%, #000 60%, transparent 100%);
}
.scene__vignette{
  position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(70% 50% at 50% 50%, transparent 55%, rgba(7,8,15,.55) 100%),
    linear-gradient(180deg, rgba(7,8,15,.4) 0%, transparent 22%, transparent 78%, var(--bg) 100%);
}

/* PHONE */
.phone{
  position:relative; transform-style:preserve-3d;
  will-change:transform;
  transform:translateY(8vh) rotateX(12deg) rotateY(0deg);
}
.phone__frame{
  position:relative; width:280px; height:570px; border-radius:42px;
  background:linear-gradient(160deg,#23263f,#0e1020);
  border:1px solid rgba(255,255,255,.12);
  padding:14px;
  box-shadow:
    0 40px 90px -30px rgba(0,0,0,.8),
    inset 0 0 0 2px rgba(255,255,255,.04);
}
.phone__notch{
  position:absolute; top:14px; left:50%; transform:translateX(-50%);
  width:118px; height:26px; background:#05060c; border-radius:0 0 16px 16px; z-index:3;
}
.phone__screen{
  position:relative; width:100%; height:100%; border-radius:30px; overflow:hidden;
  background:radial-gradient(120% 80% at 50% 0%, #1b1f3a 0%, #0a0c18 70%);
  padding:46px 16px 16px;
}
.screen__statusbar{ display:flex; justify-content:space-between; font-size:11px; color:#aeb4e0; font-weight:600; margin-bottom:18px; }
.screen__icons{ letter-spacing:1px; }
.screen__title{ font-size:26px; font-weight:800; margin:6px 4px 18px; }

/* SMS notification */
.sms{
  display:flex; gap:10px; align-items:flex-start;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.09);
  border-radius:18px; padding:12px;
  opacity:0; transform:translateY(24px) scale(.96);
  will-change:transform,opacity;
  box-shadow:0 14px 30px -14px rgba(124,140,255,.6);
}
.sms__avatar{
  flex:0 0 auto; width:38px; height:38px; border-radius:12px;
  display:grid; place-items:center; font-weight:800; color:#fff;
  background:var(--grad);
}
.sms__bubble{ flex:1; min-width:0; }
.sms__top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:3px; }
.sms__name{ font-weight:700; font-size:14px; }
.sms__time{ font-size:11px; color:var(--muted); }
.sms__text{ font-size:13px; color:#d7dbff; min-height:18px; }
.sms__text::after{ content:'▋'; color:var(--brand); animation:blink 1s steps(1) infinite; margin-left:1px; }
.sms.done .sms__text::after{ content:''; }
@keyframes blink{ 50%{ opacity:0; } }

.phone__shadow{
  position:absolute; left:50%; bottom:-46px; transform:translateX(-50%);
  width:230px; height:40px; border-radius:50%;
  background:radial-gradient(circle, rgba(0,0,0,.6), transparent 70%);
  filter:blur(6px);
}

/* ENVELOPE */
.envelope{
  position:absolute; top:50%; left:50%;
  margin:-42px 0 0 -60px;       /* svg 120x84 ortala */
  z-index:8; will-change:transform,opacity;
  filter:drop-shadow(0 24px 30px rgba(0,0,0,.5));
}
.envelope__trail{
  position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  width:160px; height:160px; border-radius:50%;
  background:radial-gradient(circle, rgba(124,140,255,.45), transparent 65%);
  filter:blur(14px); z-index:-1; opacity:.0;
}

/* scroll hint */
.scrollhint{
  position:absolute; bottom:26px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:8px;
  font-size:12px; color:var(--muted); letter-spacing:1px; text-transform:uppercase;
  z-index:6; transition:opacity .3s;
}
.scrollhint__mouse{ width:24px; height:38px; border:2px solid var(--muted); border-radius:14px; position:relative; }
.scrollhint__mouse i{ position:absolute; top:7px; left:50%; transform:translateX(-50%);
  width:4px; height:7px; border-radius:2px; background:var(--muted); animation:wheel 1.5s ease infinite; }
@keyframes wheel{ 0%{opacity:1; top:7px} 60%{opacity:0; top:18px} 100%{opacity:0} }

/* ---------- SECTION HEAD ---------- */
.section-head{ text-align:center; max-width:640px; margin:0 auto 56px; }
.section-head h2{ font-size:clamp(28px,4vw,44px); font-weight:800; letter-spacing:-.5px; margin:16px 0 12px; }
.section-head p{ color:var(--muted); }

/* ---------- FEATURES ---------- */
.features{ padding:120px 0; background:linear-gradient(180deg,var(--bg-2),var(--bg)); }
.grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
  border:1px solid var(--line); border-radius:var(--radius);
  padding:28px 24px; transition:transform .25s ease, border-color .25s, box-shadow .25s;
}
.card:hover{ transform:translateY(-6px); border-color:rgba(124,140,255,.4); box-shadow:var(--shadow); }
.card__icon{ font-size:32px; margin-bottom:14px; }
.card h3{ font-size:19px; font-weight:700; margin-bottom:8px; }
.card p{ color:var(--muted); font-size:14px; }

/* ---------- STATS ---------- */
.stats{ padding:90px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:radial-gradient(800px 300px at 50% 0,rgba(124,140,255,.10),transparent 70%); }
.stats__inner{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat b{ display:block; font-size:clamp(34px,5vw,52px); font-weight:800; background:var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat span{ color:var(--muted); font-size:14px; font-weight:500; }

/* ---------- CTA ---------- */
.cta{ padding:120px 0; }
.cta__box{
  text-align:center; padding:64px 32px; border-radius:32px;
  background:
    radial-gradient(600px 240px at 50% 0,rgba(139,92,246,.25),transparent 70%),
    linear-gradient(180deg,var(--surface),#0b0d1c);
  border:1px solid var(--line);
}
.cta__box h2{ font-size:clamp(26px,4vw,42px); font-weight:800; margin-bottom:14px; letter-spacing:-.5px; }
.cta__box p{ color:var(--muted); margin-bottom:28px; }

/* ---------- FOOTER ---------- */
.footer{ padding:64px 0 32px; border-top:1px solid var(--line); background:var(--bg-2); }
.footer__top{ display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:36px; border-bottom:1px solid var(--line); }
.footer__brand{ max-width:300px; }
.footer__brand .brand__name{ font-size:22px; font-weight:800; }
.footer__brand p{ color:var(--muted); font-size:14px; margin-top:10px; }
.footer__cols{ display:flex; gap:56px; flex-wrap:wrap; }
.footer__col h4{ font-size:14px; font-weight:700; margin-bottom:14px; }
.footer__col a{ display:block; color:var(--muted); font-size:14px; margin-bottom:9px; transition:color .2s; }
.footer__col a:hover{ color:var(--text); }
.footer__bottom{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px; padding-top:24px; }
.footer__bottom p{ color:var(--muted); font-size:13px; }
.footer__social{ display:flex; gap:10px; }
.footer__social a{ width:36px; height:36px; display:grid; place-items:center; border-radius:10px;
  background:rgba(255,255,255,.05); border:1px solid var(--line); color:var(--muted); transition:.2s; }
.footer__social a:hover{ color:#fff; border-color:rgba(124,140,255,.5); transform:translateY(-2px); }

/* ---------- SCROLL PROGRESS BAR ---------- */
.progress{ position:fixed; top:0; left:0; height:3px; width:0%; z-index:100;
  background:var(--grad); box-shadow:0 0 12px rgba(124,140,255,.7); transition:width .08s linear; }

/* ---------- TRUST STRIP ---------- */
.trust{ padding:46px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:var(--bg-2); text-align:center; }
.trust__label{ color:var(--muted); font-size:13px; font-weight:600; letter-spacing:.5px; margin-bottom:20px; text-transform:uppercase; }
.trust__logos{ display:flex; gap:40px; justify-content:center; flex-wrap:wrap;
  font-weight:700; font-size:18px; color:#5b6191; }
.trust__logos span{ transition:color .25s; }
.trust__logos span:hover{ color:var(--text); }

/* ---------- API / CODE ---------- */
.api{ padding:120px 0; background:linear-gradient(180deg,var(--bg),var(--bg-2)); }
.api__inner{ display:grid; grid-template-columns:1fr 1.1fr; gap:56px; align-items:center; }
.api__text h2{ font-size:clamp(28px,4vw,42px); font-weight:800; letter-spacing:-.5px; margin:16px 0 14px; }
.api__text>p{ color:var(--muted); margin-bottom:22px; max-width:440px; }
.api__list{ list-style:none; margin-bottom:26px; }
.api__list li{ color:#cdd2ff; font-size:15px; margin-bottom:10px; }
.code{ border-radius:16px; overflow:hidden; border:1px solid var(--line);
  background:#0a0c18; box-shadow:0 30px 70px -30px rgba(0,0,0,.8); }
.code__bar{ display:flex; align-items:center; gap:8px; padding:12px 16px; background:rgba(255,255,255,.03); border-bottom:1px solid var(--line); }
.code__bar .dot{ width:11px; height:11px; border-radius:50%; background:#3a3f63; }
.code__bar .dot:nth-child(1){ background:#ff5f57; } .code__bar .dot:nth-child(2){ background:#febc2e; } .code__bar .dot:nth-child(3){ background:#28c840; }
.code__file{ margin-left:10px; font-size:12px; color:var(--muted); }
.code__body{ margin:0; padding:22px; overflow-x:auto; font-size:13.5px; line-height:1.7;
  font-family:'SF Mono', ui-monospace, 'Cascadia Code', Consolas, monospace; color:#c7cbf0; }
.c-key{ color:#c792ea; } .c-str{ color:#7ee787; } .c-fn{ color:#79c0ff; } .c-com{ color:#6b7194; font-style:italic; }

/* button shine */
.btn--primary{ position:relative; overflow:hidden; }
.btn--primary::after{ content:''; position:absolute; top:0; left:-120%; width:60%; height:100%;
  background:linear-gradient(110deg, transparent, rgba(255,255,255,.35), transparent); transform:skewX(-18deg);
  transition:left .6s ease; }
.btn--primary:hover::after{ left:140%; }

/* reveal on scroll */
.reveal{ opacity:0; transform:translateY(30px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- RESPONSIVE ---------- */
@media (max-width:900px){
  .nav__links{ display:none; }
  .grid{ grid-template-columns:repeat(2,1fr); }
  .stats__inner{ grid-template-columns:repeat(2,1fr); row-gap:36px; }
  .hero__copy{ top:12vh; }
  .phone__frame{ width:240px; height:490px; }
  .api__inner{ grid-template-columns:1fr; gap:32px; }
  .footer__top{ flex-direction:column; gap:32px; }
  .footer__cols{ gap:36px; }
}
@media (max-width:560px){
  .grid{ grid-template-columns:1fr; }
  .stats__inner{ grid-template-columns:1fr; }
  .nav__actions .btn--ghost{ display:none; }
}
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
}