/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ===== DESIGN TOKENS ===== */
:root {
  --bg:           #ffffff;
  --surface:      #f5f7fa;
  --surface-2:    #eef2f8;
  --border:       #e3e8ef;
  --text:         #0f172a;
  --text-muted:   #64748b;
  --primary:      #1e63d8;
  --primary-dark: #154aa1;
  --primary-light:#dbeafe;
  --accent:       #38bdf8;
  --shadow-sm:    0 2px 8px rgba(15,23,42,.06);
  --shadow:       0 6px 24px rgba(15,23,42,.10);
  --shadow-lg:    0 12px 40px rgba(15,23,42,.14);
  --radius:       10px;
  --radius-lg:    16px;
  --transition:   .22s ease;
  --max-w:        1200px;
}

/* ===== TYPOGRAPHY ===== */
h1,h2,h3,h4 {
  font-family: 'Manrope', 'Inter', Arial, sans-serif;
  font-weight: 800;
  line-height: 1.2;
}
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); }
p  { font-size: clamp(.95rem, 2vw, 1.05rem); color: var(--text-muted); }

/* ===== LAYOUT UTILS ===== */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section--alt { background: var(--surface); }
.section__header { text-align: center; margin-bottom: 56px; }
.section__header p { max-width: 600px; margin: 12px auto 0; }
.section__label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 12px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: .95rem;
  padding: 13px 28px;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}
.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(30,99,216,.30);
}
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,99,216,.35); }
.btn--outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn--outline:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn--white {
  background: #fff;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.btn--white:hover { background: var(--primary-light); transform: translateY(-2px); }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.logo img, .logo svg { height: 88px; width: auto; }
.logo { flex-shrink: 0; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  font-weight: 600;
  font-size: .9rem;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: var(--transition);
  color: var(--text);
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: .9rem;
  color: var(--primary);
  flex-shrink: 0;
}
.header-contact svg { flex-shrink: 0; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile nav */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .header-contact { display: none; }
  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    gap: 2px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; }
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 60%, #1e63d8 100%);
  color: #fff;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(56,189,248,.4);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
}
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero h1 span { color: var(--accent); }
.hero p { color: rgba(255,255,255,.75); font-size: clamp(1rem,2.2vw,1.2rem); max-width: 560px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Page hero (inner pages) */
.page-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #fff;
  padding: 64px 0 56px;
}
.page-hero h1 { color: #fff; margin-bottom: 10px; }
.page-hero p { color: rgba(255,255,255,.7); }
.breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; font-size: .85rem; color: rgba(255,255,255,.5); }
.breadcrumb a { color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: #fff; }

/* ===== CARDS ===== */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary-light); }
.card__icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}
.card__icon svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: 10px; }

/* ===== GRID SYSTEMS ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 24px; }
.grid-brands { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 20px; }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}

/* ===== CATEGORY CARDS ===== */
.cat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.cat-card:hover .cat-card__arrow { color: var(--primary); transform: translateX(4px); }
.cat-card__icon {
  width: 52px;
  height: 52px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}
.cat-card__icon svg { width: 26px; height: 26px; }
.cat-card h3 { font-size: 1rem; }
.cat-card p { font-size: .875rem; line-height: 1.5; flex: 1; }
.cat-card__arrow { font-size: .85rem; font-weight: 600; color: var(--text-muted); transition: var(--transition); display: flex; align-items: center; gap: 4px; }

/* ===== BRAND LOGO CARDS ===== */
.brand-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.brand-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--primary-light); }
.brand-card img {
  height: 72px;
  width: 100%;
  object-fit: contain;
  filter: grayscale(30%);
  transition: var(--transition);
}
.brand-card:hover img { filter: grayscale(0%); }
.brand-card span { font-size: .8rem; font-weight: 600; color: var(--text-muted); text-align: center; }

/* ===== STATS BAR ===== */
.stats-bar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 56px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; text-align: center; }
.stat-item__number { font-family: 'Manrope',sans-serif; font-size: 2.6rem; font-weight: 800; color: #fff; }
.stat-item__label { font-size: .9rem; color: rgba(255,255,255,.75); margin-top: 4px; }
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2,1fr); } }

/* ===== CTA BAND ===== */
.cta-band {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 56px 0;
}
.cta-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { margin-bottom: 8px; }
.cta-band-info { display: flex; gap: 32px; flex-wrap: wrap; margin-top: 4px; }
.cta-info-item { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--text-muted); }
.cta-info-item svg { color: var(--primary); flex-shrink: 0; }
@media (max-width: 640px) { .cta-band-inner { flex-direction: column; align-items: flex-start; } }

/* ===== FEATURES (3-up) ===== */
.features-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
@media (max-width: 900px) { .features-grid { grid-template-columns: 1fr; } }

/* ===== PRODUCTS PAGE ===== */
.cat-tabs {
  position: sticky;
  top: 68px;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.cat-tabs-inner { display: flex; gap: 0; white-space: nowrap; min-width: max-content; }
.cat-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 20px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
}
.cat-tab:hover { color: var(--primary); border-bottom-color: var(--primary-light); }
.cat-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.product-section { padding: 64px 0; border-bottom: 1px solid var(--border); }
.product-section:last-child { border-bottom: none; }
.product-section-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 32px; flex-wrap: wrap; }
.product-section-header h2 { margin-bottom: 8px; }
.product-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 16px; margin-top: 24px; }
.product-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: .9rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.product-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

/* ===== ABOUT PAGE ===== */
.about-story { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-story-text h2 { margin-bottom: 20px; }
.about-story-text p { margin-bottom: 16px; }
.about-values { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
@media (max-width: 900px) { .about-story { grid-template-columns: 1fr; } .about-values { grid-template-columns: 1fr; } }

.about-img-block {
  background: linear-gradient(135deg, var(--surface-2), var(--primary-light));
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.about-img-block svg { width: 120px; height: 120px; color: var(--primary); opacity: .35; }

/* ===== CONTACT PAGE ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}
.contact-info-card h3 { margin-bottom: 28px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 28px; }
.contact-item:last-child { margin-bottom: 0; }
.contact-item__icon {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}
.contact-item__label { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 4px; }
.contact-item__value { font-weight: 600; font-size: 1rem; color: var(--text); }
.contact-item__value a { transition: var(--transition); }
.contact-item__value a:hover { color: var(--primary); }

.hours-table { margin-top: 12px; }
.hours-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .9rem; }
.hours-row:last-child { border-bottom: none; }

.map-container { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.map-container iframe { display: block; width: 100%; height: 480px; border: none; }

/* ===== FOOTER ===== */
.site-footer {
  background: #0f172a;
  color: #e2e8f0;
  padding: 28px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; margin-bottom: 0; align-items: start; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }

.footer-brand img, .footer-brand svg { display: block; height: 100px; width: auto; max-width: 240px; margin-bottom: -38px; opacity: 0.9; }
.footer-brand p { font-size: .9rem; color: #94a3b8; line-height: 1.7; margin: 0; }

.footer-col h4 { font-size: .9rem; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: .04em; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: .875rem; color: #94a3b8; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: .875rem; color: #94a3b8; }
.footer-contact-item svg { color: var(--accent); margin-top: 2px; flex-shrink: 0; }
.footer-contact-item a { color: #94a3b8; }
.footer-contact-item a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 12px;
  padding: 10px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .82rem;
  color: #475569;
}

/* ===== BAYİ MODAL ===== */
.bayi-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-weight: 700;
  font-size: .82rem;
  padding: 8px 16px;
  border-radius: var(--radius);
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  letter-spacing: .03em;
  transition: var(--transition);
  flex-shrink: 0;
}
.bayi-btn:hover { background: var(--primary-dark); transform: translateY(-1px); }

.bayi-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15,23,42,.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.bayi-modal.open { display: flex; }
.bayi-modal__box {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  max-width: 1100px;
  height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.bayi-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--primary);
  color: #fff;
  flex-shrink: 0;
}
.bayi-modal__title { font-weight: 700; font-size: .95rem; display: flex; align-items: center; gap: 8px; }
.bayi-modal__close {
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.bayi-modal__close:hover { background: rgba(255,255,255,.3); }
.bayi-modal iframe {
  flex: 1;
  border: none;
  width: 100%;
}
@media (max-width: 480px) {
  .bayi-modal { padding: 0; }
  .bayi-modal__box { height: 100vh; border-radius: 0; }
}

/* ===== SCROLL REVEAL ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .55s ease, transform .55s ease; }
.reveal.in-view { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }
.reveal-delay-6 { transition-delay: .6s; }

/* ===== MISC ===== */
.divider { width: 56px; height: 4px; background: var(--primary); border-radius: 4px; margin: 16px auto 0; }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-0 { margin-bottom: 0 !important; }