/* ============================================================
   Vectonis — ana site kimliği (aydınlık / ızgara)
   Kullanan: index.html, hakkinda.html, iletisim.html, urunler/index.html
   ============================================================ */

:root{
  --ink:#050040;
  --ink-2:#3b3a5c;
  --ink-3:#6b6a85;
  --ink-4:#9694ac;
  --line:#e2e8f0;
  --line-2:#cbd5e1;
  --bg:#ffffff;
  --card:#ffffff;
  --btn:#1e293b;
  --accent:#6b71e8;
  --wrap:1200px;
  --pad:clamp(16px,4vw,32px);
  --r-md:14px; --r-lg:20px; --r-xl:26px;
  --ease:cubic-bezier(.22,1,.36,1);
  --shadow:0 1px 2px rgba(5,0,64,.04),0 12px 32px -18px rgba(5,0,64,.18);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3{margin:0;line-height:1.15;font-weight:500;letter-spacing:-.02em}
p{margin:0}
::selection{background:rgba(107,113,232,.2)}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}

/* ── Izgaralı zemin ──────────────────────────────────────── */
.grid-bg{position:relative;isolation:isolate}
.grid-bg::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(5,0,64,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(5,0,64,.055) 1px,transparent 1px);
  background-size:56px 56px;background-position:center top;
  -webkit-mask-image:radial-gradient(120% 80% at 50% 8%,#000 35%,transparent 78%);
          mask-image:radial-gradient(120% 80% at 50% 8%,#000 35%,transparent 78%);
}
.grid-bg::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(60% 45% at 50% 0%,rgba(107,113,232,.10),transparent 70%);
}

/* ── Gezinme ─────────────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.72);backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.is-stuck{border-bottom-color:var(--line);background:rgba(255,255,255,.9)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:14px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand__logo{width:34px;height:34px}
.brand__name{font-size:1.16rem;font-weight:600;letter-spacing:-.03em}
.brand__dot{color:var(--accent)}

.nav__menu{display:none;align-items:center;gap:32px;font-weight:500}
.nav__menu a{transition:color .2s}
.nav__menu a:hover{color:var(--ink-3)}
.nav__drop{position:relative;display:flex;align-items:center;gap:5px;cursor:pointer}
.nav__drop>svg{width:17px;height:17px;transition:transform .25s}
.nav__drop:hover>svg{transform:rotate(180deg)}
.nav__drop__panel{position:absolute;top:100%;left:-18px;padding-top:16px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .26s var(--ease)}
.nav__drop:hover .nav__drop__panel,.nav__drop:focus-within .nav__drop__panel{opacity:1;visibility:visible;transform:translateY(0)}
.nav__drop__inner{display:flex;flex-direction:column;gap:2px;min-width:230px;padding:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:0 18px 44px -20px rgba(5,0,64,.28);font-weight:400}
.nav__drop__inner a{display:flex;flex-direction:column;padding:9px 12px;border-radius:10px;transition:background .18s,transform .18s}
.nav__drop__inner a:hover{background:#f6f7fb;transform:translateX(2px)}
.nav__drop__inner b{font-weight:600;font-size:.92rem}
.nav__drop__inner span{font-size:.8rem;color:var(--ink-3)}

.nav__cta{display:none}
.nav__burger{display:inline-flex;padding:9px;border-radius:10px;background:var(--btn);color:#fff;transition:background .2s}
.nav__burger:hover{background:#000}
.nav__burger svg{width:22px;height:22px}
@media (min-width:900px){
  .nav__menu,.nav__cta{display:flex}
  .nav__burger{display:none}
}

/* Mobil menü */
.mobmenu{position:fixed;inset:0;z-index:80;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:26px;
  background:rgba(255,255,255,.9);backdrop-filter:blur(16px);font-size:1.2rem;font-weight:500;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s}
.mobmenu.is-open{opacity:1;visibility:visible}
.mobmenu__close{position:absolute;top:16px;right:var(--pad);padding:9px;border-radius:10px;background:var(--btn);color:#fff}
.mobmenu__close svg{width:22px;height:22px}

/* ── Düğmeler ────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 26px;border-radius:999px;
  font-size:.94rem;font-weight:500;white-space:nowrap;transition:background .22s,border-color .22s,transform .2s var(--ease),color .22s}
.btn:hover{transform:translateY(-1px)}
.btn--solid{background:var(--btn);color:#fff}
.btn--solid:hover{background:#000}
.btn--line{border:1px solid var(--line-2);color:var(--ink)}
.btn--line:hover{background:rgba(148,163,184,.14)}
.btn--sm{padding:10px 20px;font-size:.88rem}
.btn svg{width:16px;height:16px}
.btn__sub{opacity:.55;font-weight:400}

/* ── Kahraman ────────────────────────────────────────────── */
.hero{padding-bottom:clamp(70px,10vw,140px)}
.pill{margin:clamp(56px,9vw,120px) auto 0;display:flex;width:max-content;max-width:100%;align-items:center;gap:10px;
  padding:9px 18px;border:1px solid var(--line-2);border-radius:999px;background:rgba(255,255,255,.7);
  font-size:.86rem;transition:border-color .2s}
.pill:hover{border-color:#94a3b8}
.pill b{display:inline-flex;align-items:center;gap:6px;font-weight:500}
.pill svg{width:17px;height:17px}
.hero h1{margin:30px auto 0;max-width:880px;text-align:center;font-size:clamp(2.2rem,5.6vw,4.4rem);font-weight:500}
.hero h1 em{font-style:normal;background:linear-gradient(105deg,var(--accent),#e8871b);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__lead{margin:24px auto 0;max-width:640px;text-align:center;font-size:clamp(.95rem,1.4vw,1.05rem);color:var(--ink-2)}
.hero__cta{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px}

/* ── Bölümler ────────────────────────────────────────────── */
.section{padding-block:clamp(56px,8vw,104px)}
.section__head{max-width:680px;margin-inline:auto;text-align:center}
.eyebrow{display:inline-block;font-size:.76rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-4)}
.section__title{margin-top:12px;font-size:clamp(1.7rem,3.4vw,2.6rem)}
.section__title em{font-style:normal;color:var(--accent)}
.section__sub{margin-top:14px;color:var(--ink-3);font-size:1rem}

/* ── Proje kartları ──────────────────────────────────────── */
.projects{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.proj{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-xl);background:var(--card);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .3s var(--ease),box-shadow .3s,border-color .3s}
.proj:hover{transform:translateY(-5px);box-shadow:0 2px 4px rgba(5,0,64,.04),0 26px 50px -26px rgba(5,0,64,.3);border-color:var(--line-2)}
.proj__shot{position:relative;height:190px;overflow:hidden;background:#0b0b12;border-bottom:1px solid var(--line)}
.proj__shot img{width:100%;height:100%;object-fit:cover;object-position:top center}
.proj__body{padding:24px;display:flex;flex-direction:column;flex:1}
.proj__badge{display:inline-flex;align-items:center;gap:7px;align-self:flex-start;padding:5px 12px;border-radius:999px;
  background:rgba(107,113,232,.1);color:#4a50c8;font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.proj h3{margin-top:14px;font-size:1.24rem;font-weight:600}
.proj p{margin-top:9px;color:var(--ink-3);font-size:.92rem;flex:1}
.proj__link{margin-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:500;color:var(--ink)}
.proj__link svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.proj:hover .proj__link svg{transform:translateX(4px)}

/* ── Kart ızgarası (uzmanlık) ────────────────────────────── */
.cards{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(272px,1fr))}
.card{padding:26px 24px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--card);
  transition:transform .28s var(--ease),border-color .28s,box-shadow .28s}
.card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--shadow)}
.card__ic{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;
  background:rgba(107,113,232,.1);color:#4a50c8}
.card__ic svg{width:21px;height:21px}
.card h3{margin-top:16px;font-size:1.05rem;font-weight:600}
.card p{margin-top:8px;color:var(--ink-3);font-size:.9rem}
.tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:7px}
.tag{padding:5px 12px;border-radius:999px;border:1px solid var(--line);font-size:.76rem;color:var(--ink-3)}

/* ── İlkeler ─────────────────────────────────────────────── */
.principles{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.principle{padding-top:22px;border-top:2px solid var(--ink)}
.principle__no{font-size:.78rem;font-weight:600;letter-spacing:.2em;color:var(--accent)}
.principle h3{margin-top:10px;font-size:1.1rem;font-weight:600}
.principle p{margin-top:8px;color:var(--ink-3);font-size:.9rem}

/* ── CTA şeridi ──────────────────────────────────────────── */
.cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:clamp(28px,4vw,44px);border-radius:var(--r-xl);border:1px solid var(--line);
  background:linear-gradient(120deg,#f7f8fc,#ffffff 60%);box-shadow:var(--shadow)}
.cta h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.cta p{margin-top:8px;color:var(--ink-3);font-size:.95rem;max-width:52ch}

/* ── Şerit ───────────────────────────────────────────────── */
.strip{border-block:1px solid var(--line);background:#fafbfd}
.strip__inner{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 36px;padding-block:18px;font-size:.86rem;color:var(--ink-3)}
.strip__inner span{display:inline-flex;align-items:center;gap:9px}
.strip__inner i{width:5px;height:5px;border-radius:50%;background:var(--accent)}

/* ── İçerik sayfaları ────────────────────────────────────── */
.prose{max-width:720px;margin-inline:auto}
.prose h2{margin-top:36px;font-size:1.4rem;font-weight:600}
.prose h2:first-child{margin-top:0}
.prose p{margin-top:14px;color:var(--ink-2)}
.prose ul{margin:14px 0 0;padding-left:20px;color:var(--ink-2)}
.prose li{margin-top:8px}
.infogrid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.info{padding:24px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--card)}
.info__k{font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-4)}
.info__v{margin-top:8px;font-size:1.02rem;font-weight:500}
.info__v a:hover{color:var(--accent)}

/* ── Alt bilgi ───────────────────────────────────────────── */
.footer{border-top:1px solid var(--line);padding-block:30px;background:#fafbfd}
.footer__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:.86rem;color:var(--ink-3)}
.footer__brand{color:var(--ink);font-weight:600}
.footer__nav{display:flex;flex-wrap:wrap;gap:20px}
.footer__nav a:hover{color:var(--ink)}

/* ── Görünüme girme ──────────────────────────────────────── */
.js .reveal{opacity:0;transform:translateY(16px)}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}