/* ===================================================================
   ETIKON PREFABRIK — Endustriyel Tasarim Sistemi
   =================================================================== */

:root {
  --color-bg: #f4f8fc;
  --color-bg-darker: #e6eef7;
  --color-bg-panel: #ffffff;
  --color-steel: #2c5282;
  --color-steel-light: #5b7c99;
  --color-light: #334155;
  --color-white: #0f2942;
  --color-accent: #2563eb;
  --color-accent-dark: #1d4ed8;
  --color-accent-text: #ffffff;
  --color-border: #dbe6f0;

  --font-heading: 'Oswald', 'Archivo Black', Arial, sans-serif;
  --font-body: 'Inter', 'Roboto', Arial, sans-serif;

  --container-max: 1280px;
  --radius: 2px;
  --shadow-panel: 0 10px 30px rgba(15, 41, 66, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-light);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-white);
  font-weight: 700;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.4rem; }

p { margin: 0 0 1em; color: var(--color-light); }

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-white); }

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

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }

.section { padding: 64px 0; }
.section--alt { background: var(--color-bg-darker); }
.section-eyebrow {
  color: var(--color-accent);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn--accent { background: var(--color-accent); color: var(--color-accent-text); }
.btn--accent:hover { background: var(--color-accent-dark); color: var(--color-accent-text); }
.btn--outline { background: transparent; border-color: var(--color-light); color: var(--color-light); }
.btn--outline:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 3px solid var(--color-accent);
  box-shadow: 0 2px 10px rgba(15, 41, 66, 0.06);
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  max-width: var(--container-max);
  margin: 0 auto;
}
.site-logo img { height: 52px; width: auto; }

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-white);
  white-space: nowrap;
}
.header-phone span { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--color-light);
  color: var(--color-white);
  font-size: 1.5rem;
  padding: 6px 12px;
  cursor: pointer;
}

.main-nav { background: var(--color-bg-darker); border-top: 1px solid var(--color-border); }
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  max-width: var(--container-max);
  margin: 0 auto;
}
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a {
  display: block;
  padding: 14px 18px;
  color: var(--color-light);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 3px solid transparent;
}
.main-nav > ul > li:hover > a,
.main-nav > ul > li.active > a {
  color: var(--color-white);
  border-bottom-color: var(--color-accent);
  background: rgba(37, 99, 235, 0.08);
}
.main-nav .submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background: var(--color-bg-panel);
  box-shadow: var(--shadow-panel);
  list-style: none;
  margin: 0;
  padding: 6px 0;
  display: none;
  flex-direction: column;
  border-top: 2px solid var(--color-accent);
}
.main-nav > ul > li:hover .submenu { display: flex; }
.main-nav .submenu a {
  padding: 10px 20px;
  display: block;
  color: var(--color-light);
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-transform: none;
  letter-spacing: normal;
}
.main-nav .submenu a:hover { background: rgba(37, 99, 235, 0.12); color: var(--color-accent); }

@media (max-width: 992px) {
  .nav-toggle { display: inline-block; }
  .header-phone span.phone-text { display: none; }
  .main-nav { display: none; }
  .main-nav.open { display: block; }
  .main-nav > ul { flex-direction: column; }
  .main-nav .submenu { position: static; display: none; border-top: none; box-shadow: none; padding-left: 14px; background: transparent; }
  .main-nav > ul > li.open-submenu .submenu { display: flex; }
}

/* ============ HERO ============ */
.hero {
  position: relative;
  aspect-ratio: 1250 / 270;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #eaf1fb 0%, #dbe8f7 100%);
  overflow: hidden;
  border-bottom: 4px solid var(--color-accent);
}
@media (max-width: 768px) {
  .hero { aspect-ratio: 625 / 270; }
}
@media (min-width: 769px) {
  .hero { min-height: 420px; }
}
.hero-carousel,
.hero-carousel .carousel-inner,
.hero-carousel .carousel-item {
  position: absolute;
  inset: 0;
  height: 100%;
}
.hero-carousel-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.page-hero {
  position: relative;
  padding: 90px 0 50px;
  background: linear-gradient(135deg, #eaf1fb, #dbe8f7);
  border-bottom: 4px solid var(--color-accent);
}
.page-hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.25; }
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { color: var(--color-steel-light); font-size: 0.85rem; margin-bottom: 10px; }
.breadcrumb a { color: var(--color-steel-light); }
.breadcrumb a:hover { color: var(--color-accent); }

/* ============ CARDS ============ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.service-card {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-panel); }
.service-card img { height: 200px; object-fit: cover; width: 100%; }
.service-card .body { padding: 20px; }
.service-card h3 { margin-bottom: 8px; font-size: 1.15rem; }
.service-card p { font-size: 0.92rem; color: var(--color-steel-light); margin-bottom: 12px; }
.service-card .more { font-family: var(--font-heading); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }

.project-card {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.project-card .img-wrap { aspect-ratio: 4/3; overflow: hidden; }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.project-card:hover img { transform: scale(1.06); }
.project-card .body { padding: 18px; border-top: 3px solid var(--color-accent); }
.project-card .tag { color: var(--color-accent); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; font-family: var(--font-heading); }
.project-card h3 { font-size: 1.05rem; margin: 6px 0; }
.project-card .loc { color: var(--color-steel-light); font-size: 0.85rem; }

/* ============ STATS STRIP ============ */
.stats-strip { background: var(--color-bg-darker); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); padding: 36px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; text-align: center; }
.stat-item .num { font-family: var(--font-heading); font-size: 2.2rem; color: var(--color-accent); display: block; }
.stat-item .label { color: var(--color-steel-light); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* ============ CTA BAND ============ */
.cta-band {
  background: var(--color-accent);
  color: var(--color-accent-text);
  padding: 36px 0;
}
.cta-band .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.cta-band h2 { color: var(--color-accent-text); margin: 0; font-size: 1.6rem; }
.cta-band .btn--outline { border-color: var(--color-accent-text); color: var(--color-accent-text); }
.cta-band .btn--outline:hover { background: var(--color-accent-text); color: var(--color-accent); }
.cta-band .phone-cta { font-family: var(--font-heading); font-size: 1.6rem; }

/* ============ GALLERY / LIGHTBOX ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.gallery-grid figure { margin: 0; overflow: hidden; border: 1px solid var(--color-border); aspect-ratio: 4/3; cursor: zoom-in; }
.gallery-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.gallery-grid figure:hover img { transform: scale(1.08); }

.lightbox-overlay {
  position: fixed; inset: 0; background: rgba(10,10,10,0.92);
  display: none; align-items: center; justify-content: center; z-index: 2000; padding: 40px;
}
.lightbox-overlay.open { display: flex; }
.lightbox-overlay img { max-width: 90vw; max-height: 85vh; border: 4px solid var(--color-accent); }
.lightbox-close { position: absolute; top: 20px; right: 30px; font-size: 2rem; color: #ffffff; cursor: pointer; background: none; border: none; }
.lightbox-nav { position: absolute; top: 50%; transform: translateY(-50%); font-size: 2.5rem; color: #ffffff; background: none; border: none; cursor: pointer; padding: 0 20px; }
.lightbox-prev { left: 0; }
.lightbox-next { right: 0; }

/* logo grid (referanslar) */
.logo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; margin-top: 24px; }
.logo-grid .logo-box { background: #ffffff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px; display: flex; align-items: center; justify-content: center; height: 100px; }
.logo-grid .logo-box img { max-height: 60px; width: auto; max-width: 100%; object-fit: contain; }

/* ============ FEATURE LIST / SPEC TABLE ============ */
.feature-list { list-style: none; padding: 0; margin: 24px 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.feature-list li {
  background: var(--color-bg-panel);
  border-left: 3px solid var(--color-accent);
  padding: 14px 16px;
  font-size: 0.95rem;
}

/* ============ FAQ / ACCORDION ============ */
.faq-list { margin-top: 24px; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; color: var(--color-white);
  font-family: var(--font-heading); text-transform: uppercase; letter-spacing: 0.03em;
  padding: 18px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 1rem;
}
.faq-q::after { content: "+"; color: var(--color-accent); font-size: 1.4rem; }
.faq-item.open .faq-q::after { content: "\2212"; }
.faq-a { display: none; padding-bottom: 16px; color: var(--color-steel-light); }
.faq-item.open .faq-a { display: block; }

/* ============ FORM ============ */
.form-control-group { margin-bottom: 18px; }
.form-control-group label { display: block; margin-bottom: 6px; font-size: 0.9rem; color: var(--color-light); }
.form-control-group input, .form-control-group select, .form-control-group textarea {
  width: 100%; padding: 12px 14px; background: var(--color-bg-panel); border: 1px solid var(--color-border);
  color: var(--color-white); font-family: var(--font-body); border-radius: var(--radius);
}
.form-control-group input:focus, .form-control-group select:focus, .form-control-group textarea:focus {
  outline: none; border-color: var(--color-accent);
}
.text-danger { color: #dc2626; font-size: 0.85rem; }
.alert-success { background: rgba(34,197,94,0.12); border: 1px solid #22c55e; color: #166534; padding: 16px; margin-bottom: 20px; }

/* ============ FOOTER ============ */
.site-footer { background: var(--color-bg-darker); border-top: 4px solid var(--color-accent); padding: 56px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; }
.footer-grid h4 { font-size: 1rem; margin-bottom: 16px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: var(--color-steel-light); font-size: 0.92rem; }
.footer-grid a:hover { color: var(--color-accent); }
.footer-logo img { height: 44px; margin-bottom: 14px; }
.social-icons { display: flex; gap: 12px; margin-top: 14px; }
.social-icons a { width: 36px; height: 36px; border: 1px solid var(--color-steel-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.social-icons a:hover { border-color: var(--color-accent); }
.footer-bottom { border-top: 1px solid var(--color-border); margin-top: 40px; padding: 20px 0; text-align: center; color: var(--color-steel-light); font-size: 0.85rem; }

/* ============ GENERIC CONTENT PAGE ============ */
.content-body p { font-size: 1.02rem; }
.content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
@media (max-width: 900px) { .content-grid { grid-template-columns: 1fr; } }
.side-cta-box { background: var(--color-bg-panel); border: 1px solid var(--color-border); border-top: 3px solid var(--color-accent); padding: 24px; }
.side-cta-box h4 { font-size: 1rem; }
.side-cta-box .phone { font-family: var(--font-heading); color: var(--color-accent); font-size: 1.4rem; display: block; margin: 10px 0; }

.section-menu { list-style: none; padding: 0; margin: 0 0 30px; }
.section-menu li { border-bottom: 1px solid var(--color-border); }
.section-menu a { display: block; padding: 12px 4px; color: var(--color-light); font-size: 0.92rem; }
.section-menu a:hover, .section-menu a.active { color: var(--color-accent); }

.map-frame { width: 100%; height: 420px; border: 0; filter: grayscale(0.3) contrast(1.1); }