:root {
  --black: #0b0f13;
  --ink: #151a20;
  --muted: #5f6873;
  --paper: #fbfaf7;
  --white: #ffffff;
  --gold: #d5a545;
  --teal: #148c7b;
  --red: #b83b32;
  --line: rgba(21,26,32,.13);
  --line-dark: rgba(255,255,255,.14);
  --shadow: 0 24px 60px rgba(0,0,0,.22);
  --radius: 8px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: var(--ink); background: var(--white); line-height: 1.55; }
img { display: block; width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin-top: 0; }
.wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.top { background: var(--black); color: rgba(255,255,255,.88); font-size: 14px; }
.top .wrap { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.top a { color: var(--white); font-weight: 900; }
.nav { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.97); border-bottom: 1px solid #e8e3da; backdrop-filter: blur(12px); }
.nav .wrap { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: grid; gap: 1px; line-height: 1.2; }
.brand strong { font-size: 19px; }
.brand span { color: var(--muted); font-size: 13px; }
.nav-links { display: flex; align-items: center; gap: 18px; color: #25303a; font-size: 14px; font-weight: 900; }
.btn { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 18px; border-radius: var(--radius); border: 1px solid transparent; font-weight: 900; line-height: 1.15; text-align: center; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 14px 28px rgba(0,0,0,.18); }
.btn.whatsapp { background: var(--teal); color: var(--white); }
.btn.call { background: var(--black); color: var(--white); }
.btn.light { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.42); color: var(--white); }
.hero { min-height: 78vh; color: var(--white); display: grid; align-items: end; background: linear-gradient(90deg, rgba(11,15,19,.95), rgba(11,15,19,.72) 50%, rgba(11,15,19,.16)), var(--hero) center / cover no-repeat, var(--black); }
.hero .wrap { padding: 86px 0 70px; display: grid; grid-template-columns: minmax(0, 760px) minmax(280px, 380px); gap: 34px; align-items: end; }
.eyebrow { margin-bottom: 14px; color: #f0c46b; font-size: 13px; font-weight: 900; text-transform: uppercase; }
h1 { max-width: 780px; margin-bottom: 22px; font-size: clamp(38px, 6vw, 74px); line-height: .98; }
.lead { max-width: 720px; margin-bottom: 28px; color: rgba(255,255,255,.82); font-size: 19px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.quick { border: 1px solid var(--line-dark); border-radius: var(--radius); background: rgba(11,15,19,.76); box-shadow: var(--shadow); padding: 22px; }
.quick h2 { margin-bottom: 10px; color: var(--white); font-size: 24px; line-height: 1.14; }
.quick p { margin-bottom: 18px; color: rgba(255,255,255,.75); }
.quick-list { margin: 0 0 20px; padding: 0; list-style: none; display: grid; gap: 9px; color: rgba(255,255,255,.9); font-weight: 700; }
.quick-list li { padding-left: 22px; position: relative; }
.quick-list li::before { content: ""; position: absolute; left: 0; top: .55em; width: 10px; height: 10px; background: var(--gold); border-radius: 50%; }
.proof { background: #111820; color: var(--white); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.proof .wrap { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.proof-item { padding: 22px; border-right: 1px solid var(--line-dark); }
.proof-item:first-child { border-left: 1px solid var(--line-dark); }
.proof-item strong { display: block; margin-bottom: 4px; color: var(--gold); font-size: 25px; line-height: 1; }
section { padding: 74px 0; }
.paper { background: var(--paper); }
.dark { background: var(--black); color: var(--white); }
.section-head { display: flex; justify-content: space-between; gap: 28px; align-items: end; margin-bottom: 32px; }
.section-head h2 { max-width: 780px; margin-bottom: 0; font-size: clamp(28px, 4vw, 48px); line-height: 1.06; }
.section-head p { max-width: 430px; margin-bottom: 0; color: var(--muted); }
.dark .section-head p, .dark .muted { color: rgba(255,255,255,.72); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); overflow: hidden; }
.card img { aspect-ratio: 16 / 10; object-fit: cover; }
.card-body { padding: 24px; }
.tag { display: inline-flex; margin-bottom: 12px; padding: 6px 10px; border-radius: 999px; background: rgba(20,140,123,.12); color: #0d7465; font-size: 13px; font-weight: 900; }
.card h3, .faq-item h3 { margin-bottom: 10px; font-size: 22px; line-height: 1.18; }
.card p, .faq-item p { margin-bottom: 0; color: var(--muted); }
.split { display: grid; grid-template-columns: 1.03fr .97fr; gap: 34px; align-items: center; }
.large-photo { min-height: 520px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); position: relative; background: #d8d0c2; }
.large-photo img { height: 100%; min-height: 520px; object-fit: cover; }
.photo-label { position: absolute; left: 18px; right: 18px; bottom: 18px; padding: 16px; border-radius: var(--radius); background: rgba(11,15,19,.84); color: var(--white); font-weight: 900; }
.checks { display: grid; gap: 13px; margin: 24px 0 0; padding: 0; list-style: none; }
.checks li { position: relative; padding-left: 30px; color: #2a333d; font-weight: 800; }
.checks li::before { content: ""; position: absolute; left: 0; top: .38em; width: 17px; height: 17px; border-radius: 50%; background: var(--teal); box-shadow: inset 0 0 0 5px #dff5f1; }
.dark .checks li { color: rgba(255,255,255,.86); }
.gallery { display: grid; grid-template-columns: 1.1fr .95fr .95fr; gap: 12px; }
.gallery figure { min-height: 260px; margin: 0; border-radius: var(--radius); overflow: hidden; position: relative; background: #222; }
.gallery figure:first-child { grid-row: span 2; min-height: 532px; }
.gallery img { height: 100%; object-fit: cover; }
.gallery figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 48px 16px 14px; background: linear-gradient(transparent, rgba(0,0,0,.78)); color: var(--white); font-weight: 900; }
.district-links { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.district-links a { border: 1px solid var(--line-dark); border-radius: var(--radius); background: rgba(255,255,255,.07); padding: 14px; color: var(--white); font-weight: 900; }
.faq { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); padding: 24px; }
.cta { color: var(--white); background: linear-gradient(90deg, rgba(11,15,19,.96), rgba(11,15,19,.82), rgba(11,15,19,.45)), url("images/bahce-dugun-ses-sistemi-kurulumu.jpeg") center / cover no-repeat, var(--black); }
.cta-box { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; }
.cta h2 { margin-bottom: 12px; font-size: clamp(30px, 4.4vw, 54px); line-height: 1.04; max-width: 840px; }
.cta p { max-width: 760px; margin-bottom: 0; color: rgba(255,255,255,.78); }
footer { padding: 30px 0; background: #070a0d; color: rgba(255,255,255,.65); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.mobile-sticky { display: none; }
@media (max-width: 980px) {
  .nav-links { display: none; }
  .hero { min-height: 74vh; background: linear-gradient(180deg, rgba(11,15,19,.97), rgba(11,15,19,.66)), var(--hero) center / cover no-repeat, var(--black); }
  .hero .wrap, .proof .wrap, .grid-3, .split, .faq, .cta-box { grid-template-columns: 1fr; }
  .proof-item, .proof-item:first-child { border-left: 1px solid var(--line-dark); border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
  .section-head { display: block; }
  .section-head h2 { margin-bottom: 12px; }
  .gallery { grid-template-columns: 1fr; }
  .gallery figure, .gallery figure:first-child { min-height: 280px; grid-row: auto; }
  .district-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mobile-sticky { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 10px; background: rgba(7,10,13,.95); border-top: 1px solid rgba(255,255,255,.12); }
  body { padding-bottom: 76px; }
}
@media (max-width: 560px) {
  .top .wrap { align-items: flex-start; flex-direction: column; gap: 4px; padding: 10px 0; }
  .nav .wrap { min-height: 68px; }
  .brand strong { font-size: 16px; }
  .brand span { font-size: 12px; }
  .nav .btn { display: none; }
  .hero .wrap { padding: 54px 0 50px; }
  .actions .btn, .quick .btn, .card .btn, .cta .btn { width: 100%; }
  section { padding: 56px 0; }
  .district-links { grid-template-columns: 1fr; }
}