/* ============================================================
   DC Yacht — Kurumsal Alternatif
   Denizcilik sektörüne özel yazılım çözümleri ve hizmetleri
   ============================================================ */

:root {
  --navy: #0F172A;
  --navy-deep: #0B1220;
  --teal: #2563EB;
  --tq: #3B82F6;
  --tq-light: #93C5FD;
  --ink: #0F172A;
  --mute: #64748B;
  --bg: #ffffff;
  --gray: #F8FAFC;
  --line: #E2E8F0;
  --white: #ffffff;

  --font-display: "Manrope", sans-serif;
  --font-body: "Inter", sans-serif;

  --radius: 14px;
  --container: 1180px;
  --header-h: 76px;
  --topbar-h: 38px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body { font-family: var(--font-body); font-size: 16.5px; line-height: 1.7; color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; }

::selection { background: var(--teal); color: #fff; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; letter-spacing: -0.015em; }

.overline { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; }
.section-title { font-size: clamp(28px, 3.8vw, 40px); color: var(--navy); margin-bottom: 14px; max-width: 720px; }
.section-lead { font-size: 17px; color: var(--mute); max-width: 660px; }

/* ---------- Topbar ---------- */

.topbar { background: var(--navy-deep); color: rgba(255,255,255,0.75); height: var(--topbar-h); display: flex; align-items: center; font-size: 12.5px; }
.topbar .container { display: flex; justify-content: space-between; gap: 16px; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 22px; }

/* ---------- Header ---------- */

.site-header { position: sticky; top: 0; z-index: 100; background: var(--white); border-bottom: 1px solid var(--line); height: var(--header-h); display: flex; align-items: center; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; }

.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 19px; font-weight: 800; color: var(--navy); }
.logo svg { height: 36px; width: 36px; }
.logo b { color: var(--tq); }
.logo small { display: block; font-family: var(--font-body); font-size: 9.5px; font-weight: 600; letter-spacing: 0.08em; color: var(--mute); text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { font-size: 14.5px; font-weight: 600; color: var(--ink); transition: color 0.2s ease; }
.main-nav a:hover { color: var(--teal); }

.header-actions { display: flex; align-items: center; gap: 14px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--font-display); font-size: 15px; font-weight: 700; padding: 13px 26px; border-radius: 8px; border: none; cursor: pointer; transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--navy); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--navy); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-outline:hover { box-shadow: inset 0 0 0 1.5px var(--navy); }
.btn-small { padding: 10px 20px; font-size: 14px; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 40px; height: 40px; position: relative; z-index: 110; color: var(--navy); }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 8px; width: 24px; height: 2px; background: currentColor; transition: transform 0.25s ease; }
.nav-toggle span { top: 19px; }
.nav-toggle span::before { top: -7px; left: 0; }
.nav-toggle span::after { top: 7px; left: 0; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero { padding: 72px 0 84px; background: linear-gradient(180deg, var(--gray) 0%, var(--white) 100%); }
.hero .container { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }

.hero h1 { font-size: clamp(34px, 4.6vw, 52px); color: var(--navy); margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--teal); }
.hero-lead { font-size: 18px; color: var(--mute); max-width: 540px; margin-bottom: 30px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.hero-trust { font-size: 13.5px; color: var(--mute); border-top: 1px solid var(--line); padding-top: 16px; max-width: 520px; }
.hero-trust strong { color: var(--navy); }

.hero-media { position: relative; }
.hero-media img { border-radius: var(--radius); box-shadow: 0 24px 60px rgba(15, 23, 42, 0.15); width: 100%; height: 430px; object-fit: cover; }
.hero-media .media-cap { position: absolute; left: 18px; bottom: 18px; background: rgba(9, 43, 58, 0.88); color: #fff; font-size: 12.5px; font-weight: 600; padding: 9px 14px; border-radius: 7px; display: flex; align-items: center; gap: 8px; }
.hero-media .media-cap i { width: 8px; height: 8px; border-radius: 50%; background: var(--tq-light); }

/* ---------- Bölümler ---------- */

.section { padding: 92px 0; }
.section.gray { background: var(--gray); }
.section-head { margin-bottom: 46px; }

/* ---------- Hizmet blokları ---------- */

.svc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.svc-block { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; display: grid; grid-template-columns: 56px 1fr; gap: 20px; transition: box-shadow 0.25s ease, transform 0.25s ease; }
.svc-block:hover { box-shadow: 0 16px 40px rgba(37, 99, 235, 0.09); transform: translateY(-3px); }
.svc-block .ico { width: 56px; height: 56px; border-radius: 14px; background: #EFF6FF; color: var(--teal); display: grid; place-items: center; }
.svc-block .ico svg { width: 26px; height: 26px; }
.svc-block h3 { font-size: 19px; color: var(--navy); margin-bottom: 7px; }
.svc-block p { font-size: 14.5px; color: var(--mute); margin-bottom: 10px; }
.svc-block ul { list-style: none; }
.svc-block li { font-size: 13.5px; color: var(--ink); padding: 4px 0 4px 20px; position: relative; }
.svc-block li::before { content: "✓"; position: absolute; left: 0; color: var(--tq); font-weight: 700; }

/* ---------- Çözüm alanları ---------- */

.domain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.domain { background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--teal); border-radius: 10px; padding: 22px 22px; }
.domain h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 5px; }
.domain p { font-size: 13.5px; color: var(--mute); }

/* ---------- Görsel band ---------- */

.band { position: relative; height: 380px; overflow: hidden; }
.band img { width: 100%; height: 100%; object-fit: cover; }
.band::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(9,43,58,0.82) 0%, rgba(9,43,58,0.35) 60%, transparent 100%); }
.band-inner { position: absolute; inset: 0; display: flex; align-items: center; z-index: 2; }
.band-inner h2 { font-size: clamp(24px, 3.2vw, 36px); color: #fff; max-width: 620px; }
.band-inner h2 em { font-style: normal; color: var(--tq-light); }

/* ---------- Süreç ---------- */

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: p; }
.p-step { position: relative; padding: 0 26px 0 0; }
.p-step + .p-step { padding-left: 26px; border-left: 1px solid var(--line); }
.p-step .no { width: 42px; height: 42px; border-radius: 50%; background: var(--navy); color: #fff; font-family: var(--font-display); font-weight: 800; font-size: 16px; display: grid; place-items: center; margin-bottom: 16px; }
.p-step:nth-child(2) .no { background: var(--teal); }
.p-step:nth-child(3) .no { background: var(--tq); }
.p-step:nth-child(4) .no { background: var(--tq-light); color: var(--navy-deep); }
.p-step h3 { font-size: 17.5px; color: var(--navy); margin-bottom: 7px; }
.p-step p { font-size: 14px; color: var(--mute); }

/* ---------- Ürün teaser ---------- */

.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 26px 24px; position: relative; overflow: hidden; }
.prod:nth-child(2) { background: var(--teal); }
.prod:nth-child(3) { background: var(--navy-deep); }
.prod .tag { font-size: 10.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--tq-light); display: block; margin-bottom: 10px; }
.prod h3 { font-size: 19px; margin-bottom: 6px; }
.prod p { font-size: 13.5px; color: rgba(255,255,255,0.75); }

/* ---------- Neden biz ---------- */

.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why { border-top: 3px solid var(--tq); padding-top: 18px; }
.why h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 6px; }
.why p { font-size: 14px; color: var(--mute); }

/* ---------- İletişim ---------- */

.contact-wrap { background: linear-gradient(140deg, #1D4ED8, #2563EB); border-radius: 16px; padding: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; color: #fff; }
.contact-wrap h2 { font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 12px; }
.contact-wrap h2 em { font-style: normal; color: var(--tq-light); }
.contact-wrap .c-lead { color: rgba(255,255,255,0.72); margin-bottom: 26px; font-size: 15.5px; }
.c-info { font-size: 14.5px; color: rgba(255,255,255,0.85); display: grid; gap: 8px; }
.c-info b { color: var(--tq-light); font-weight: 600; }

.quote-form { display: grid; gap: 12px; }
.quote-form input, .quote-form textarea { font-family: var(--font-body); font-size: 15px; padding: 13px 16px; border-radius: 8px; border: 1.5px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.06); color: #fff; outline: none; resize: vertical; }
.quote-form input::placeholder, .quote-form textarea::placeholder { color: rgba(255,255,255,0.45); }
.quote-form input:focus, .quote-form textarea:focus { border-color: var(--tq-light); }
.quote-form .btn { justify-self: start; background: #fff; color: var(--teal); }
.quote-form .btn:hover { background: #EFF6FF; color: #1D4ED8; }
.form-success { display: none; color: var(--tq-light); font-weight: 600; font-size: 15px; }

/* ---------- Footer ---------- */

.site-footer { background: var(--navy-deep); color: rgba(255,255,255,0.7); padding: 56px 0 34px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr 1fr; gap: 32px; margin-bottom: 40px; }
.site-footer .logo { color: #fff; font-size: 17px; }
.footer-brand p { font-size: 13.5px; color: rgba(255,255,255,0.55); max-width: 280px; margin-top: 14px; }
.footer-col h4 { font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.45); margin-bottom: 14px; }
.footer-col ul { list-style: none; display: grid; gap: 9px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,0.8); }
.footer-col a:hover { color: var(--tq-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 20px; display: flex; justify-content: space-between; gap: 14px; font-size: 12.5px; color: rgba(255,255,255,0.45); }

/* ---------- Yukarı dön / reveal ---------- */

.to-top { position: fixed; right: 24px; bottom: 24px; z-index: 90; width: 48px; height: 48px; border: none; border-radius: 50%; background: var(--teal); color: #fff; display: grid; place-items: center; cursor: pointer; box-shadow: 0 10px 26px rgba(37,99,235,0.3); opacity: 0; transform: translateY(14px); pointer-events: none; transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease; }
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--navy); }
.to-top svg { width: 20px; height: 20px; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* ---------- Responsive ---------- */

@media (max-width: 1020px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-media img { height: 340px; }
  .svc-grid { grid-template-columns: 1fr; }
  .domain-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .p-step + .p-step { border-left: none; padding-left: 0; }
  .prod-grid, .why-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; padding: 36px 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .topbar { display: none; }
  .nav-toggle { display: block; }
  .main-nav { position: fixed; inset: 0; background: var(--navy-deep); flex-direction: column; justify-content: center; gap: 26px; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; z-index: 105; }
  .main-nav a { font-size: 20px; color: #fff; }
  body.nav-open .main-nav { opacity: 1; pointer-events: auto; }
  body.nav-open { overflow: hidden; }
  .header-actions .btn { display: none; }
  .section { padding: 64px 0; }
  .svc-block { grid-template-columns: 1fr; }
  .domain-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .band { height: 260px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}


/* ---------- Videolu hero (kurumsal) ---------- */
.hero-video-wrap { position: relative; min-height: 78vh; display: flex; align-items: center; overflow: hidden; color: #fff; padding: calc(var(--header-h) + 30px) 0 70px; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-vscrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11, 18, 32, 0.78) 0%, rgba(11, 18, 32, 0.45) 50%, rgba(11, 18, 32, 0.15) 100%), linear-gradient(180deg, rgba(11,18,32,0.35) 0%, transparent 35%, transparent 70%, rgba(11,18,32,0.55) 100%); }
.hero-video-wrap .container { position: relative; z-index: 2; }
.hero-video-wrap .overline { color: var(--tq-light); }
.hero-video-wrap h1 { font-size: clamp(34px, 4.8vw, 54px); color: #fff; margin-bottom: 20px; max-width: 760px; }
.hero-video-wrap h1 em { font-style: normal; color: var(--tq-light); }
.hero-video-wrap .hero-lead { color: rgba(255,255,255,0.82); }
.hero-video-wrap .hero-trust { border-top-color: rgba(255,255,255,0.25); color: rgba(255,255,255,0.7); }
.hero-video-wrap .hero-trust strong { color: #fff; }
.hero-video-wrap .btn-outline { color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255,255,255,0.5); }
.hero-video-wrap .btn-outline:hover { box-shadow: inset 0 0 0 1.5px #fff; background: rgba(255,255,255,0.1); }
/* Video üzerinde header */
.site-header.on-video { position: fixed; inset: 0 0 auto 0; background: transparent; border-bottom: none; transition: background 0.3s ease, box-shadow 0.3s ease; }
.site-header.on-video.is-scrolled { background: rgba(255,255,255,0.96); backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--line); }
.site-header.on-video:not(.is-scrolled) .logo, .site-header.on-video:not(.is-scrolled) .main-nav a { color: #fff; }
.site-header.on-video:not(.is-scrolled) .logo b { color: var(--tq-light); }
.site-header.on-video:not(.is-scrolled) .logo small { color: rgba(255,255,255,0.6); }
.site-header.on-video:not(.is-scrolled) .main-nav a:hover { color: var(--tq-light); }
.site-header.on-video:not(.is-scrolled) .nav-toggle { color: #fff; }
body.has-video-hero { padding-top: 0; }

/* ---------- Yasal sayfalar ---------- */
.legal { padding: 56px 0 90px; }
.legal .container { max-width: 820px; }
.legal h1 { font-size: clamp(30px, 4vw, 42px); color: var(--navy); margin-bottom: 8px; }
.legal .updated { color: var(--mute); font-size: 14px; margin-bottom: 38px; }
.legal h2 { font-size: 21px; color: var(--navy); margin: 36px 0 12px; }
.legal p { margin-bottom: 14px; }
.legal ul { margin: 0 0 14px; padding-left: 24px; }
.legal li { margin-bottom: 8px; }
.legal a { color: var(--teal); text-decoration: underline; }