/* Mehmet Usta Konveyör Bant — ortak stil dosyası */
:root {
  --bg: #fbf7ef;
  --surface: #efeae3;
  --ink: #161615;
  --ink-soft: #3a3936;
  --muted: #6b6862;
  --line: #ddd6cb;
  --accent: #e04a0c;
  --accent-dark: #b83a07;
  --accent-bar: #f04a0a;
  --white: #ffffff;
  --ok-bg: #e7f3ea; --ok-ink: #1d5b2e;
  --err-bg: #fbe9e5; --err-ink: #9a2b12;
  --container: 1240px;
  --radius: 6px;
  --font-head: "Archivo", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex; flex-direction: column; min-height: 100vh;
}
main { flex: 1; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.1; margin: 0; letter-spacing: -0.01em; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 100; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 247, 239, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 96px; }
.brand img { width: 170px; height: auto; }
.main-nav ul { list-style: none; display: flex; align-items: center; gap: 8px; margin: 0; padding: 0; }
.main-nav a {
  display: block; padding: 10px 18px; text-decoration: none;
  font-family: var(--font-head); font-weight: 700; font-size: 18px;
  border-bottom: 3px solid transparent;
}
.main-nav a:hover { color: var(--accent); }
.main-nav a[aria-current="page"] { border-bottom-color: var(--accent-bar); }
.main-nav .nav-cta a { background: var(--ink); color: #fff; padding: 12px 26px; border-radius: 2px; margin-left: 18px; border-bottom: 0; }
.main-nav .nav-cta a:hover { background: var(--accent); color: #fff; }
.main-nav .nav-cta a[aria-current="page"] { background: var(--accent); color: #fff; border-bottom: 0; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 4px 0; transition: transform .2s, opacity .2s; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--accent); color: #fff; border: 0; cursor: pointer;
  font-family: var(--font-head); font-weight: 700; font-size: 19px;
  padding: 16px 26px; text-decoration: none; border-radius: 2px;
  transition: background .15s, transform .15s;
}
.btn:hover { background: var(--accent-dark); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .65; cursor: progress; }
.btn .arrow { font-size: 1.1em; line-height: 1; }
.btn-rounded { border-radius: 6px; }

/* ---------- Page heading ---------- */
.accent-bar { display: block; width: 76px; height: 7px; background: var(--accent-bar); margin-bottom: 30px; }
.page-head { padding: 48px 0 40px; }
.page-head h1 { font-size: clamp(40px, 6vw, 68px); font-weight: 800; }
.page-head p { font-size: 20px; margin: 18px 0 0; color: var(--ink-soft); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; min-height: 490px; display: flex; align-items: center; }
.hero-img { position: absolute; inset: 0 0 0 auto; width: 70%; height: 100%; object-fit: cover; object-position: left center; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, var(--bg) 0%, var(--bg) 30%, rgba(251,247,239,.85) 38%, rgba(251,247,239,0) 52%);
}
.hero .container { position: relative; z-index: 2; }
.hero h1 { font-size: clamp(52px, 8vw, 90px); font-weight: 900; line-height: .95; letter-spacing: -0.02em; }
.hero p { font-weight: 700; font-size: 20px; margin: 24px 0 36px; max-width: 520px; }

/* ---------- Product cards ---------- */
.cards-section { padding: 48px 0 64px; }
.card-grid { display: grid; gap: 16px; }
.card-grid.home { grid-template-columns: repeat(5, 1fr); }
.card-grid.catalog { grid-template-columns: repeat(6, 1fr); }
.card-grid.catalog .card { grid-column: span 2; }
.card-grid.catalog .card:nth-child(4), .card-grid.catalog .card:nth-child(5) { grid-column: span 3; }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
  text-decoration: none; display: flex; flex-direction: column;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0,0,0,.10); }
.card-img { aspect-ratio: 1 / 1; overflow: hidden; background: #2a2a28; }
.card-grid.catalog .card-img { aspect-ratio: 16 / 9; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.card:hover .card-img img { transform: scale(1.04); }
.card-body { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 18px 20px; }
.card-title { font-family: var(--font-head); font-weight: 800; font-size: 22px; letter-spacing: -0.02em; line-height: 1.2; }
.card-grid.home .card-title { font-size: 19px; }
.card-grid.home .card-body { padding: 16px; }
.card-arrow { color: var(--accent); font-size: 26px; line-height: 1; flex-shrink: 0; transition: transform .2s; }
.card:hover .card-arrow { transform: translateX(4px); }

/* Skeleton while AJAX loads */
.skeleton { background: linear-gradient(90deg, #ece6dc 25%, #f5f0e8 50%, #ece6dc 75%); background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: 8px; min-height: 260px; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- Product detail ---------- */
.breadcrumb { padding: 36px 0 30px; font-size: 17px; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 12px; }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.product { display: grid; grid-template-columns: 1fr 0.9fr; gap: 48px; align-items: start; }
.product-img img { width: 100%; aspect-ratio: 795 / 554; object-fit: cover; }
.product-info .accent-bar { margin: 6px 0 36px; }
.product-info h1 { font-size: clamp(36px, 4.4vw, 56px); font-weight: 800; }
.product-info .lead { font-size: 21px; margin: 24px 0 34px; max-width: 560px; }
.quick-form .btn { margin-top: 40px; }

.other-products { padding: 56px 0 64px; }
.other-products h2 { font-size: 30px; margin-bottom: 22px; }
.other-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; list-style: none; margin: 0; padding: 0; }
.other-list a {
  display: block; background: var(--surface); padding: 24px 16px; text-decoration: none;
  font-family: var(--font-head); font-weight: 700; font-size: 19px; height: 100%;
  border-left: 3px solid transparent; transition: border-color .15s, background .15s;
}
.other-list a:hover { border-left-color: var(--accent); background: #e8e1d6; }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 10px; margin-bottom: 26px; }
.field label { font-family: var(--font-head); font-weight: 700; font-size: 19px; }
.field input, .field select, .field textarea {
  font: inherit; font-size: 18px; color: var(--ink);
  background: var(--white); border: 1px solid var(--line); border-radius: 0;
  padding: 15px 17px; width: 100%;
}
.field textarea { min-height: 120px; resize: vertical; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 22px) 50%, calc(100% - 16px) 50%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 44px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(224,74,12,.18); }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--err-ink); }
.field-error { color: var(--err-ink); font-size: 15px; min-height: 0; }
.field-error:empty { display: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; }
.req { color: var(--accent); }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin-top: 22px; padding: 14px 18px; border-radius: var(--radius); font-weight: 600; }
.form-status:empty { display: none; }
.form-status, .field { scroll-margin-top: 130px; }
.form-status.ok { background: var(--ok-bg); color: var(--ok-ink); }
.form-status.err { background: var(--err-bg); color: var(--err-ink); }
.spinner { width: 18px; height: 18px; border: 3px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; display: none; }
.btn.loading .spinner { display: inline-block; }
.btn.loading .arrow { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Content layouts ---------- */
.split { display: grid; gap: 60px; align-items: start; padding-bottom: 72px; }
.split.about { grid-template-columns: 1fr 1fr; }
.split.contact { grid-template-columns: 0.8fr 1fr; gap: 76px; }
.split.quote { grid-template-columns: 1.6fr 1fr; gap: 70px; }
.about-text h2 { font-size: clamp(30px, 3.4vw, 46px); font-weight: 800; margin: 30px 0 34px; }
.about-text p { font-size: 20px; margin: 0 0 16px; max-width: 540px; }
.about-text .btn { margin-top: 80px; }
.contact-aside h2 { font-size: 34px; margin: 52px 0 22px; }
.contact-aside p { font-size: 20px; margin: 0 0 36px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; list-style: none; margin: 0; padding: 0 0 80px; counter-reset: step; }
.step { background: var(--surface); display: flex; flex-direction: column; }
.step img { width: 100%; aspect-ratio: 489 / 232; object-fit: cover; }
.step-body { padding: 26px 21px 32px; display: flex; flex-direction: column; flex: 1; }
.step h2 { font-size: 30px; font-weight: 800; margin-bottom: 20px; }
.step h2::before { counter-increment: step; content: counter(step) ". "; color: var(--accent); }
.step p { margin: 0 0 32px; font-size: 18px; }
.step .btn { margin-top: auto; align-self: flex-start; }

.info-box { background: var(--surface); }
.info-box img { width: 100%; aspect-ratio: 563 / 288; object-fit: cover; }
.info-box div { padding: 26px 28px 38px; }
.info-box h2 { font-size: 30px; font-weight: 800; margin-bottom: 20px; }
.info-box ul { margin: 0; padding-left: 28px; font-size: 19px; }
.info-box li { margin-bottom: 12px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #fff; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 88px; flex-wrap: wrap; padding-top: 16px; padding-bottom: 16px; }
.footer-brand { font-family: var(--font-head); font-weight: 800; font-size: 25px; }
.footer-nav ul { list-style: none; display: flex; gap: 8px 64px; margin: 0; padding: 0; flex-wrap: wrap; }
.footer-nav a { text-decoration: none; font-size: 20px; color: #f0ece4; }
.footer-nav a:hover { color: var(--accent-bar); }
.footer-copy { width: 100%; border-top: 1px solid #2d2d2b; padding-top: 12px; font-size: 14px; color: #a7a39b; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .card-grid.home { grid-template-columns: repeat(3, 1fr); }
  .card-title { font-size: 20px; }
  .main-nav a { padding: 10px 12px; font-size: 17px; }
  .main-nav .nav-cta a { margin-left: 8px; }
}
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--line); display: none; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; padding: 8px 16px 18px; gap: 0; }
  .main-nav a { border-bottom: 1px solid var(--line); padding: 14px 4px; }
  .main-nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--line); }
  .main-nav .nav-cta a[aria-current="page"] { color: #fff; }
  .main-nav .nav-cta a { margin: 14px 0 0; text-align: center; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .header-inner { min-height: 76px; }
  .brand img { width: 130px; }
  .hero { min-height: 0; flex-direction: column; align-items: stretch; }
  .hero-img { position: static; width: 100%; height: 260px; order: 2; }
  .hero::before { display: none; }
  .hero .container { padding-top: 40px; padding-bottom: 32px; }
  .card-grid.catalog { grid-template-columns: 1fr 1fr; }
  .card-grid.catalog .card, .card-grid.catalog .card:nth-child(4), .card-grid.catalog .card:nth-child(5) { grid-column: auto; }
  .product, .split.about, .split.contact, .split.quote { grid-template-columns: 1fr; gap: 36px; }
  .other-list { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .about-text .btn { margin-top: 24px; }
  .contact-aside h2 { margin-top: 28px; }
  .footer-nav ul { gap: 8px 28px; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .container { padding: 0 16px; }
  .card-grid.home, .card-grid.catalog { grid-template-columns: 1fr 1fr; gap: 12px; }
  .card-body { padding: 12px; }
  .card-title { font-size: 16px; }
  .card-arrow { font-size: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .other-list { grid-template-columns: 1fr; }
  .page-head p, .product-info .lead, .about-text p, .contact-aside p { font-size: 18px; }
  .btn { font-size: 17px; padding: 14px 20px; }
  .footer-brand { font-size: 20px; }
  .footer-nav a { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}