/* Netsahibi Kooperatif Sistemi — kurumsal tanıtım sitesi
   Marka: lacivert #0C2340 + altın #C5A572 (denizci kimlik). */
:root {
  --navy:#0C2340; --navy-700:#143257; --navy-900:#07192f;
  --gold:#C5A572; --gold-600:#b2925b; --gold-100:#f3ebdd;
  --paper:#f7f6f1; --soft:#eef2f8; --white:#fff;
  --ink:#172230; --muted:#5d6b7b; --line:#e4e9f1;
  --ok-bg:#e7f5ec; --ok:#1d7a44; --err-bg:#fdeaea; --err:#b4322c;
  --sh-sm:0 1px 3px rgba(12,35,64,.08); --sh:0 10px 30px rgba(12,35,64,.10);
  --sh-lg:0 24px 60px rgba(12,35,64,.18); --r:14px; --r-sm:10px;
  --wrap:1160px; --font:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;
}
* { box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body { margin:0; font-family:var(--font); color:var(--ink); background:var(--white);
  font-size:17px; line-height:1.65; -webkit-font-smoothing:antialiased; }
img { max-width:100%; display:block; }
a { color:var(--navy); text-decoration:none; }
h1,h2,h3,h4 { margin:0 0 .5em; line-height:1.18; color:var(--navy); font-weight:800;
  letter-spacing:-.01em; }
p { margin:0 0 1rem; }
.wrap { max-width:var(--wrap); margin:0 auto; padding:0 22px; }
.center { text-align:center; }
.muted { color:var(--muted); }

/* ---------- Butonlar ---------- */
.btn { display:inline-flex; align-items:center; gap:.5rem; justify-content:center;
  background:linear-gradient(135deg,#dcbd82 0%,#c9a970 48%,#b89355 100%); color:var(--navy); font-weight:700; font-size:1.02rem;
  border:0; border-radius:999px; padding:.75rem 1.6rem; cursor:pointer;
  transition:transform .14s, box-shadow .25s, filter .2s; box-shadow:0 8px 22px rgba(150,115,60,.42), inset 0 1px 0 rgba(255,255,255,.5);
  text-align:center; font-family:inherit; }
.btn:hover { transform:translateY(-2px); filter:brightness(1.06) saturate(1.05); box-shadow:0 14px 32px rgba(150,115,60,.52), inset 0 1px 0 rgba(255,255,255,.55); }
.btn-ghost { background:transparent; color:var(--navy); border:1.6px solid rgba(12,35,64,.25); box-shadow:none; }
.btn-ghost:hover { background:var(--navy); color:#fff; border-color:var(--navy); box-shadow:none; }
.btn-light { background:#fff; color:var(--navy); box-shadow:none; }
.btn-light:hover { background:var(--gold-100); }
.btn-outline-light { background:rgba(255,255,255,.14); color:#fff; border:1.5px solid rgba(255,255,255,.62);
  box-shadow:0 6px 18px rgba(4,12,24,.18); backdrop-filter:blur(7px); -webkit-backdrop-filter:blur(7px); }
.btn-outline-light:hover { background:rgba(255,255,255,.26); border-color:#fff; transform:translateY(-2px); }
.btn-lg { padding:.95rem 2rem; font-size:1.08rem; }
.btn-block { width:100%; }

/* ---------- Üst menü ---------- */
.site-head { position:sticky; top:0; z-index:50; background:rgba(255,255,255,.96);
  backdrop-filter:saturate(1.3) blur(8px); border-bottom:1px solid transparent; transition:box-shadow .25s,border-color .25s; }
.site-head.scrolled { box-shadow:var(--sh-sm); border-bottom-color:var(--line); }
.nav { display:flex; align-items:center; gap:1.4rem; height:72px; }
.nav-logo img { height:56px; width:auto; }
.nav-links { display:flex; align-items:center; gap:.3rem; margin-left:auto; }
.nav-links a { color:var(--ink); font-weight:600; font-size:.97rem; padding:.5rem .7rem;
  border-radius:8px; white-space:nowrap; }
.nav-links a:hover { color:var(--navy); background:var(--soft); }
.nav-links a.on { color:var(--navy); }
.nav-cta { display:flex; align-items:center; gap:.55rem; margin-left:.6rem; }
.nav-cta .btn, .nav-cta .btn-ghost { padding:.52rem 1.05rem; font-size:.95rem; }
/* açılır menü */
.has-sub { position:relative; }
.has-sub > a::after { content:"▾"; font-size:.7em; margin-left:.3rem; color:var(--muted); }
.sub { position:absolute; top:calc(100% + 6px); left:0; min-width:240px; background:#fff;
  border:1px solid var(--line); border-radius:12px; box-shadow:var(--sh); padding:.5rem;
  opacity:0; visibility:hidden; transform:translateY(6px); transition:.18s; }
.has-sub:hover .sub, .has-sub:focus-within .sub { opacity:1; visibility:visible; transform:none; }
.sub a { display:flex; flex-direction:column; gap:.1rem; padding:.6rem .7rem; border-radius:8px; }
.sub a span { font-size:.82rem; color:var(--muted); font-weight:500; }
.sub a:hover { background:var(--soft); }
.nav-burger { display:none; margin-left:auto; background:none; border:0; cursor:pointer;
  width:44px; height:44px; border-radius:10px; }
.nav-burger span { display:block; width:24px; height:2px; background:var(--navy); margin:5px auto; border-radius:2px; transition:.2s; }

/* ---------- Hero ---------- */
.hero { position:relative; overflow:hidden; color:#eaf0f8;
  background:linear-gradient(100deg, rgba(6,15,28,.52) 0%, rgba(8,20,38,.28) 48%, rgba(10,28,50,.02) 100%),
             url('/tanitim/hero-bg.jpg?v=3') center center/cover no-repeat; }
.hero::after { content:none; }
.hero-txt { position:relative; text-shadow:0 1px 10px rgba(4,12,24,.5); }
.hero-cta .btn:not(.btn-outline-light) { text-shadow:none; }
.hero-in { display:grid; grid-template-columns:1fr 1.3fr; gap:2rem; align-items:center;
  padding:1.5rem 0 2rem; }
.eyebrow { display:inline-flex; align-items:center; gap:.5rem; color:var(--gold);
  font-weight:700; font-size:.82rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:1rem; }
.eyebrow::before { content:""; width:26px; height:2px; background:var(--gold); }
.hero h1 { color:#fff; font-size:clamp(2.1rem,4.4vw,3.35rem); margin-bottom:.7rem; }
.hero h1 .g { color:var(--gold); }
.hero-lead { font-size:1.15rem; color:#c3d0e2; max-width:36ch; margin-bottom:1.2rem; }
.hero-cta { display:flex; flex-wrap:wrap; gap:.8rem; margin-bottom:1.2rem; }
.hero-trust { display:flex; flex-wrap:wrap; gap:1.2rem; font-size:.92rem; color:#9fb2cc; }
.hero-trust b { color:#fff; }
.hero-trust span { display:inline-flex; align-items:center; gap:.45rem; }
.hero-trust span::before { content:"✓"; color:var(--gold); font-weight:900; }
/* hero görsel kartı */
.hero-art { position:relative; }
.hero-card { background:#fff; border-radius:16px; box-shadow:var(--sh-lg); overflow:hidden;
  border:1px solid rgba(255,255,255,.2); transform:rotate(-0.5deg); }
.hero-card .bar { height:34px; background:var(--soft); display:flex; align-items:center; gap:6px; padding:0 12px; border-bottom:1px solid var(--line); }
.hero-card .bar i { width:10px; height:10px; border-radius:50%; background:#cfd8e6; display:block; }
.hero-card img { width:100%; display:block; }
.hero-phone { position:absolute; right:-18px; bottom:-30px; width:150px; border-radius:22px;
  box-shadow:var(--sh-lg); border:5px solid #0f223c; background:#0f223c; transform:rotate(4deg); }

/* ---------- Bölümler ---------- */
section { padding:4.5rem 0; }
.sec-soft { background:var(--soft); }
.sec-paper { background:var(--paper); }
.sec-navy { background:var(--navy); color:#dfe8f3; }
.sec-navy h2, .sec-navy h3 { color:#fff; }
.sec-head { max-width:720px; margin:0 auto 2.6rem; text-align:center; }
.sec-head .eyebrow { color:var(--gold-600); justify-content:center; }
.sec-navy .sec-head .eyebrow { color:var(--gold); }
.sec-head h2 { font-size:clamp(1.7rem,3vw,2.3rem); }
.sec-head p { font-size:1.1rem; color:var(--muted); }
.sec-navy .sec-head p { color:#b9c7dc; }

/* değer kartları */
.cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:1.3rem; }
.card { background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:1.6rem;
  box-shadow:var(--sh-sm); transition:transform .15s, box-shadow .2s; }
.card:hover { transform:translateY(-3px); box-shadow:var(--sh); }
.card .ic { width:50px; height:50px; border-radius:13px; display:grid; place-items:center;
  background:var(--gold-100); color:var(--gold-600); margin-bottom:1rem; }
.card .ic svg { width:26px; height:26px; }
.card h3 { font-size:1.18rem; margin-bottom:.4rem; }
.card p { color:var(--muted); font-size:.98rem; margin:0; }

/* modül listesi */
.mods { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1rem; }
.mod { display:flex; gap:.85rem; align-items:flex-start; background:#fff; border:1px solid var(--line);
  border-radius:12px; padding:1.1rem 1.2rem; box-shadow:var(--sh-sm); }
.mod .d { width:40px; height:40px; flex:none; border-radius:11px; background:var(--navy); color:var(--gold);
  display:grid; place-items:center; }
.mod .d svg { width:21px; height:21px; }
.mod h4 { font-size:1.03rem; margin:0 0 .15rem; }
.mod p { margin:0; font-size:.9rem; color:var(--muted); }

/* split (web + mobil) */
.split { display:grid; grid-template-columns:1fr 1fr; gap:3rem; align-items:center; }
.split.rev .split-art { order:-1; }
.split-txt h2 { font-size:clamp(1.6rem,2.6vw,2.1rem); }
.split-txt ul { list-style:none; padding:0; margin:1.2rem 0 0; }
.split-txt li { position:relative; padding:.4rem 0 .4rem 2rem; color:var(--ink); }
.split-txt li::before { content:"✓"; position:absolute; left:0; top:.4rem; width:22px; height:22px;
  background:var(--gold-100); color:var(--gold-600); border-radius:50%; display:grid; place-items:center;
  font-size:.75rem; font-weight:900; }
.split-art img { border-radius:var(--r); box-shadow:var(--sh); border:1px solid var(--line); }

/* adımlar */
.steps { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1.5rem; counter-reset:s; }
.step { text-align:center; position:relative; }
.step .n { width:58px; height:58px; margin:0 auto 1rem; border-radius:50%; background:var(--navy);
  color:var(--gold); font-size:1.5rem; font-weight:800; display:grid; place-items:center;
  box-shadow:0 8px 20px rgba(12,35,64,.25); }
.step h3 { font-size:1.12rem; }
.step p { color:var(--muted); font-size:.96rem; margin:0; }

/* ---------- Ekran görüntüsü galerisi + lightbox ---------- */
.gallery { display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:1.1rem; }
.shot { margin:0; background:#fff; border:1px solid var(--line); border-radius:12px; overflow:hidden;
  box-shadow:var(--sh-sm); cursor:zoom-in; transition:transform .15s, box-shadow .2s; }
.shot:hover { transform:translateY(-3px); box-shadow:var(--sh); }
.shot .thumb { aspect-ratio:16/10; overflow:hidden; background:var(--soft); }
.shot .thumb img { width:100%; height:100%; object-fit:cover; object-position:top center; }
.shot figcaption { padding:.7rem .9rem; font-size:.9rem; color:var(--muted); font-weight:600; }
.shot.phone .thumb { aspect-ratio:9/16; background:#0f223c; }
.shot.phone .thumb img { object-fit:contain; }
.lb { position:fixed; inset:0; z-index:100; background:rgba(7,18,32,.9); display:none;
  align-items:center; justify-content:center; padding:24px; cursor:zoom-out; }
.lb.open { display:flex; animation:fade .2s ease; }
@keyframes fade { from { opacity:0; } to { opacity:1; } }
.lb img { max-width:94vw; max-height:84vh; border-radius:12px; box-shadow:var(--sh-lg); cursor:default; }
.lb-cap { position:absolute; bottom:18px; left:0; right:0; text-align:center; color:#dfe8f3; font-size:.95rem; }
.lb-x { position:absolute; top:16px; right:20px; width:46px; height:46px; border-radius:50%;
  background:rgba(255,255,255,.12); color:#fff; border:0; font-size:1.5rem; cursor:pointer; }
.lb-x:hover { background:rgba(255,255,255,.25); }
.lb-nav { position:absolute; top:50%; transform:translateY(-50%); width:52px; height:52px; border-radius:50%;
  background:rgba(255,255,255,.12); color:#fff; border:0; font-size:1.6rem; cursor:pointer; }
.lb-nav:hover { background:rgba(255,255,255,.25); }
.lb-prev { left:18px; } .lb-next { right:18px; }

/* ---------- CTA band ---------- */
.band { background:linear-gradient(130deg,var(--navy),var(--navy-700)); color:#fff; border-radius:20px;
  padding:3rem; text-align:center; box-shadow:var(--sh); }
.band h2 { color:#fff; font-size:clamp(1.6rem,2.6vw,2.2rem); }
.band p { color:#c3d0e2; max-width:52ch; margin:0 auto 1.6rem; font-size:1.08rem; }
.band .hero-cta { justify-content:center; }

/* ---------- İletişim ---------- */
.contact { display:grid; grid-template-columns:.9fr 1.1fr; gap:2.5rem; align-items:start; }
.info-card { background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:1.8rem; box-shadow:var(--sh-sm); }
.info-row { display:flex; gap:.9rem; align-items:flex-start; padding:.9rem 0; border-bottom:1px solid var(--line); }
.info-row:last-child { border-bottom:0; }
.info-row .d { width:42px; height:42px; flex:none; border-radius:11px; background:var(--gold-100);
  color:var(--gold-600); display:grid; place-items:center; }
.info-row .d svg { width:21px; height:21px; }
.info-row .t small { display:block; color:var(--muted); font-size:.82rem; text-transform:uppercase; letter-spacing:.04em; }
.info-row .t b { font-size:1.05rem; color:var(--navy); }
.info-row .t a { color:var(--navy); font-weight:700; }

/* ---------- Formlar ---------- */
.form-card { background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:1.8rem; box-shadow:var(--sh-sm); }
.field { margin-bottom:1rem; }
.field label { display:block; font-size:.9rem; font-weight:600; color:var(--navy); margin-bottom:.35rem; }
.field label .req { color:var(--err); }
.field input, .field select, .field textarea { width:100%; padding:.72rem .9rem; border:1.4px solid var(--line);
  border-radius:var(--r-sm); font-family:inherit; font-size:1rem; color:var(--ink); background:#fdfdfe; transition:border .15s, box-shadow .15s; }
.field input:focus, .field select:focus, .field textarea:focus { outline:0; border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(197,165,114,.2); background:#fff; }
.field textarea { min-height:120px; resize:vertical; }
.field-2 { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-note { font-size:.85rem; color:var(--muted); margin:.3rem 0 1rem; }
.alert { padding:.9rem 1.1rem; border-radius:var(--r-sm); margin-bottom:1.3rem; font-weight:600; }
.alert-ok { background:var(--ok-bg); color:var(--ok); }
.alert-err { background:var(--err-bg); color:var(--err); }
.alert-err ul { margin:.3rem 0 0; padding-left:1.2rem; font-weight:500; }

/* ---------- Giriş kutusu ---------- */
.auth-sahne { min-height:calc(100vh - 72px); display:grid; place-items:center; padding:3rem 22px;
  background:radial-gradient(900px 400px at 50% -10%, #16365c 0, transparent 60%), linear-gradient(160deg,var(--navy),var(--navy-900)); }
.auth-box { width:100%; max-width:420px; background:#fff; border-radius:18px; box-shadow:var(--sh-lg); padding:2.2rem; }
.auth-box .lead { text-align:center; margin-bottom:1.5rem; }
.auth-box .lead img { height:48px; width:auto; margin:0 auto .9rem; }
.auth-box h1 { font-size:1.4rem; text-align:center; margin-bottom:.3rem; }
.auth-box .sub { text-align:center; color:var(--muted); font-size:.95rem; }

/* ---------- İçerik / yasal sayfa ---------- */
.page-hero { background:linear-gradient(160deg,var(--navy),var(--navy-900)); color:#fff; padding:3.4rem 0; }
.page-hero .eyebrow { color:var(--gold); }
.page-hero h1 { color:#fff; font-size:clamp(1.8rem,3.2vw,2.6rem); margin:0; }
.page-hero p { color:#c3d0e2; margin:.6rem 0 0; max-width:60ch; }
.prose { max-width:760px; }
.prose h2 { margin-top:1.8rem; font-size:1.3rem; }
.prose p, .prose li { color:var(--ink); }

/* ---------- Footer ---------- */
.site-foot { background:var(--navy-900); color:#9fb2cc; padding:3.5rem 0 1.5rem; font-size:.95rem; }
.foot-grid { display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:2rem; padding-bottom:2.5rem; border-bottom:1px solid rgba(255,255,255,.1); }
.foot-brand img { height:52px; width:auto; margin-bottom:1rem; }
.foot-brand p { max-width:34ch; color:#8ca1bd; }
.foot-col h4 { color:#fff; font-size:.95rem; text-transform:uppercase; letter-spacing:.06em; margin-bottom:1rem; }
.foot-col a { display:block; color:#9fb2cc; padding:.3rem 0; }
.foot-col a:hover { color:var(--gold); }
.foot-col .line { display:flex; gap:.5rem; padding:.3rem 0; color:#9fb2cc; }
.foot-col .line b { color:#cdd9e8; font-weight:600; }
.foot-bottom { display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; padding-top:1.3rem; font-size:.88rem; color:#7e93b0; }
.foot-bottom a { color:#9fb2cc; }

/* ---------- Duyarlı ---------- */
@media (max-width:980px) {
  .hero-in { grid-template-columns:1fr; gap:2rem; padding:2.2rem 0 2.6rem; }
  .hero-art { max-width:460px; }
  .split, .contact { grid-template-columns:1fr; gap:2rem; }
  .split.rev .split-art { order:0; }
  .foot-grid { grid-template-columns:1fr 1fr; gap:1.6rem; }
}
@media (max-width:760px) {
  body { font-size:16px; }
  .nav-links { position:fixed; inset:72px 0 auto; flex-direction:column; align-items:stretch;
    background:#fff; border-bottom:1px solid var(--line); padding:1rem 22px 1.4rem; gap:.2rem;
    box-shadow:var(--sh); transform:translateY(-130%); transition:transform .25s; }
  .nav-links.open { transform:none; }
  .nav-links a { padding:.8rem .6rem; font-size:1.05rem; border-bottom:1px solid var(--soft); }
  .has-sub > a::after { float:right; }
  .sub { position:static; opacity:1; visibility:visible; transform:none; box-shadow:none; border:0;
    padding:.2rem 0 .2rem 1rem; min-width:0; }
  .nav-cta { margin:1rem 0 0; }
  .nav-cta .btn, .nav-cta .btn-ghost { flex:1; }
  .nav-burger { display:block; }
  section { padding:3.2rem 0; }
  .band { padding:2.2rem 1.4rem; }
  .foot-grid { grid-template-columns:1fr; }
  .field-2 { grid-template-columns:1fr; }
}