/* ==========================================================================
   Bostan Tekstil — ortak stil dosyası
   Renkler firma logosundan örneklendi:
   Ana kırmızı #c8323f  |  Logo mavisi (soft) #7d93bb  |  Fonksiyonel lacivert #2c4570  |  Zemin: Beyaz
   ========================================================================== */

:root {
  --red: #c8323f;
  --red-dark: #a3252f;
  --blue-soft: #7d93bb;   /* logodaki pastel mavi — dekoratif kullanım */
  --blue: #2c4570;        /* okunabilir koyu mavi — başlık/nav/footer */
  --blue-dark: #1f3255;
  --white: #ffffff;
  --gray-50: #f8f7f6;
  --gray-100: #eeecea;
  --gray-300: #d8d4d0;
  --gray-500: #8f8983;
  --gray-700: #4e4a46;
  --gray-900: #201e1c;
  --shadow: 0 4px 18px rgba(44, 69, 112, 0.08);
  --radius: 10px;
  --container: 1180px;
  --font: 'Inter', "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Topbar ---------- */
.topbar {
  background: var(--blue);
  color: var(--white);
  font-size: 13px;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  padding-bottom: 8px;
  flex-wrap: wrap;
  gap: 6px;
}
.topbar a { opacity: 0.9; display: inline-flex; align-items: center; gap: 6px; }
.topbar a svg { flex-shrink: 0; }
.topbar a:hover { opacity: 1; text-decoration: underline; }
.topbar-links { display: flex; gap: 18px; }

.topbar-right { display: flex; align-items: center; gap: 14px; }
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.85);
  transition: color .15s;
}
.social-icon:hover { color: var(--white); }

.lang-switch { display: flex; gap: 4px; }
.lang-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.75);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 4px 9px;
  border-radius: 4px;
  cursor: pointer;
  transition: all .15s;
}
.lang-btn:hover { color: var(--white); border-color: rgba(255,255,255,0.4); }
.lang-btn.active { background: var(--white); color: var(--blue); border-color: var(--white); }

/* ---------- Header / Nav ---------- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  padding-bottom: 10px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo img.logo-full {
  height: 68px;
  width: auto;
}
.logo .logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 55%, var(--blue-soft) 55%, var(--blue) 100%);
  flex-shrink: 0;
}
.logo img.logo-mark { background: none; border-radius: 0; object-fit: contain; }
.logo span.accent { color: var(--red); }
.logo .tagline {
  font-size: 11px;
  font-weight: 500;
  color: var(--gray-500);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: block;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  margin: 0;
  padding: 0;
}
nav.main-nav a {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--gray-900);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--red);
  border-color: var(--red);
}

.nav-cta {
  background: var(--red);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
  transition: background .15s;
}
.nav-cta:hover { background: var(--red-dark); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span {
  width: 26px;
  height: 3px;
  background: var(--blue-dark);
  border-radius: 2px;
}

/* ---------- Hero (scroll ile ileri-geri saran video arka plan) ---------- */
.hero-scrub {
  position: relative;
  height: 300vh; /* scroll mesafesi = video'nun "saracağı" alan */
}
.hero-scrub-sticky {
  position: sticky;
  top: 89px; /* sticky header yüksekliği kadar boşluk bırak */
  height: calc(100vh - 89px);
  min-height: 480px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-dark);
}
.hero-scrub .scrub-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-scrub .scrub-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}
.hero-scrub-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(31,50,85,0.6) 0%, rgba(31,50,85,0.4) 45%, rgba(31,50,85,0.7) 100%);
}
.hero-scrub-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  text-align: center;
  padding: 0 24px;
}
.hero-scrub-content .hero-eyebrow {
  display: inline-block;
  color: #fff;
  background: rgba(193,39,45,0.85);
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 22px;
}
.hero-scrub-content h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 50px;
  line-height: 1.15;
  margin: 0 0 22px;
  color: var(--white);
  letter-spacing: -0.5px;
}
.hero-scrub-content h1 .accent { color: #ff8a8a; }
.hero-scrub-content p.lead {
  font-size: 17px;
  color: rgba(255,255,255,0.88);
  max-width: 560px;
  margin: 0 auto 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .15s;
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); }
.btn-outline { border-color: var(--blue); color: var(--blue); background: transparent; }
.btn-outline:hover { background: var(--blue); color: var(--white); }
.btn-outline-light { border-color: rgba(255,255,255,0.7); color: var(--white); background: transparent; }
.btn-outline-light:hover { background: var(--white); color: var(--blue); }

/* Hero altındaki tam genişlik istatistik şeridi (YAP-BOS Retail yapısına referansla) */
.hero-stats {
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
  position: relative;
  z-index: 2;
}
.hero-stats .container {
  max-width: var(--container);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
}
.hero-stats .stat {
  padding: 34px 20px;
  border-right: 1px solid var(--gray-100);
}
.hero-stats .stat:last-child { border-right: none; }
.hero-stats .stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  color: var(--blue);
}
.hero-stats .stat span {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gray-500);
}

@media (max-width: 720px) {
  .hero-scrub { height: 220vh; }
  .hero-scrub-sticky { top: 0; height: 100vh; }
  .hero-scrub-content h1 { font-size: 32px; }
}

/* ---------- Section generic ---------- */
section { padding: 80px 0; }
section.alt { background: var(--gray-50); }
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 50px;
}
.section-head .eyebrow {
  color: var(--red);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 32px;
  color: var(--blue);
  letter-spacing: -0.3px;
  margin: 0 0 12px;
}
.section-head p { color: var(--gray-700); }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .18s, box-shadow .18s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-thumb {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-300));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0;
  color: var(--gray-500);
  font-size: 13px;
  font-weight: 600;
}
.card-body { padding: 20px; }
.card-body h3 { margin: 0 0 8px; font-size: 16px; line-height: 1.3; color: var(--blue-dark); }
.card-body p { margin: 0; font-size: 14px; color: var(--gray-700); }
.card-body .swatch-note { margin-top: 6px; font-size: 12.5px; color: var(--gray-500); }
.kartela-grid .card-body { padding: 16px 18px; }
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--red);
  background: rgba(193,39,45,0.08);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

/* ---------- Fabric filter (product gallery) ---------- */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 44px;
}
.filter-btn {
  background: var(--white);
  border: 1.5px solid var(--gray-300);
  color: var(--gray-700);
  padding: 9px 20px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  transition: all .15s;
}
.filter-btn:hover { border-color: var(--red); color: var(--red); }
.filter-btn.active {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}
.product-item { transition: opacity .2s, transform .2s; }
.product-item.hidden { display: none; }

/* ---------- Timeline (Hakkımızda / tarihçe) ---------- */
.timeline {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding-left: 30px;
  border-left: 3px solid var(--gray-100);
}
.timeline-item { position: relative; padding-bottom: 42px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -39px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--red);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--red);
}
.timeline-item .year {
  color: var(--red);
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 4px;
}
.timeline-item h3 { margin: 0 0 6px; color: var(--blue-dark); font-size: 18px; }
.timeline-item p { margin: 0; color: var(--gray-700); font-size: 14.5px; }

.about-photos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}
.about-photos .ph {
  aspect-ratio: 1/1;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-300));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 12px;
  font-weight: 600;
  position: relative;
  overflow: hidden;
}
.about-photos .ph.has-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-photos .ph.has-photo .cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 10px 7px;
  background: linear-gradient(transparent, rgba(0,0,0,0.6));
  color: var(--white);
  font-size: 11.5px;
  font-weight: 700;
  text-align: left;
}

/* ---------- Values / icons ---------- */
.value-box { text-align: center; padding: 30px 20px; }
.value-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(27,58,99,0.08);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
  font-weight: 800;
}
.value-box h3 { font-size: 16px; margin: 0 0 8px; color: var(--blue-dark); }
.value-box p { font-size: 13.5px; color: var(--gray-700); margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--blue-dark), var(--blue));
  color: var(--white);
  text-align: center;
  padding: 60px 0;
}
.cta-band h2 { font-family: var(--font-display); font-weight: 600; font-size: 28px; margin: 0 0 14px; letter-spacing: -0.3px; }
.cta-band p { opacity: 0.85; margin: 0 0 26px; }
.cta-band .btn-primary { background: var(--red); }

/* ---------- Certificates ---------- */
.cert-card {
  text-align: center;
  padding: 34px 20px;
}
.cert-badge {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(193,39,45,0.08);
  color: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
}

/* ---------- Blog ---------- */
.blog-meta {
  font-size: 12.5px;
  color: var(--gray-500);
  margin-bottom: 8px;
}
.blog-meta .dot { margin: 0 6px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 26px;
}
.contact-info-item .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(193,39,45,0.08);
  color: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}
.contact-info-item h4 { margin: 0 0 4px; font-size: 15px; color: var(--blue-dark); }
.contact-info-item p { margin: 0; font-size: 14px; color: var(--gray-700); }

.map-box {
  margin-top: 10px;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--gray-100), var(--gray-300));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 13px;
}

form.contact-form {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--gray-100);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--red);
}
.form-group textarea { resize: vertical; min-height: 110px; }

/* ---------- Footer ---------- */
footer.site-footer {
  background: var(--blue-dark);
  color: rgba(255,255,255,0.85);
  padding: 60px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-grid h4 {
  color: var(--white);
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; font-size: 14px; }
.footer-grid a:hover { color: var(--white); text-decoration: underline; }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  color: var(--white);
  margin-bottom: 14px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 22px;
  display: flex;
  justify-content: center;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Breadcrumb / page header (inner pages) ---------- */
.page-header {
  background: var(--gray-50);
  padding: 44px 0;
  border-bottom: 1px solid var(--gray-100);
}
.page-header .eyebrow {
  color: var(--red);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.page-header h1 { margin: 0; color: var(--blue); font-family: var(--font-display); font-weight: 600; font-size: 34px; letter-spacing: -0.3px; }
.page-header p { color: var(--gray-700); margin: 10px 0 0; max-width: 600px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; height: 260px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-photos { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 720px) {
  nav.main-nav { display: none; }
  .menu-toggle { display: flex; }
  .nav-cta { display: none; }
  .hero h1 { font-size: 32px; }
  .grid-4, .grid-3 { grid-template-columns: 1fr 1fr; }
  .about-photos { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .topbar .container { justify-content: center; text-align: center; }
}

/* mobile nav open state */
nav.main-nav.open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  box-shadow: var(--shadow);
  padding: 10px 0;
}
nav.main-nav.open ul {
  flex-direction: column;
  gap: 0;
  padding: 0 24px;
}
nav.main-nav.open li { border-bottom: 1px solid var(--gray-100); }
nav.main-nav.open a { display: block; padding: 14px 0; }