/* =========================================================
   ANB GRUP - Kurumsal Stiller
   Tailwind CSS'i tamamlayan özel tasarım katmanı
   ========================================================= */

:root {
  --anb-navy: #0b1f3a;
  --anb-navy-light: #123056;
  --anb-blue: #1d6fd1;
  --anb-sky: #38a3f0;
  --anb-gray: #f5f7fa;
  --anb-border: #e5eaf0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Roboto', sans-serif;
  color: #1f2a37;
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Başlık & Metin ---------- */
.font-display {
  font-family: 'Inter', 'Roboto', sans-serif;
  letter-spacing: -0.02em;
}

/* ---------- Renk Yardımcıları ---------- */
.text-navy { color: var(--anb-navy); }
.bg-navy { background-color: var(--anb-navy); }
.bg-navy-light { background-color: var(--anb-navy-light); }
.bg-anb-gray { background-color: var(--anb-gray); }
.text-anb-blue { color: var(--anb-blue); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--anb-border);
}

.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(11, 31, 58, 0.10);
}

.header-link {
  position: relative;
  font-weight: 500;
  color: var(--anb-navy);
  transition: color 0.25s ease;
  padding: 0.5rem 0.25rem;
}

.header-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--anb-blue), var(--anb-sky));
  transition: width 0.3s ease;
}

.header-link:hover,
.header-link.active {
  color: var(--anb-blue);
}

.header-link:hover::after,
.header-link.active::after {
  width: 100%;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  min-height: 88vh;
  display: flex;
  align-items: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(9, 25, 48, 0.88) 0%,
    rgba(11, 31, 58, 0.72) 40%,
    rgba(11, 31, 58, 0.45) 100%
  );
}

.hero-title {
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  line-height: 1.15;
}

/* ---------- Hero Slider ---------- */
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  will-change: opacity;
}

.hero-slide.active {
  opacity: 1;
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  width: 46px;
  height: 46px;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background-color 0.25s ease, transform 0.25s ease;
  cursor: pointer;
}

.hero-arrow:hover {
  background-color: var(--anb-blue);
  border-color: var(--anb-blue);
  transform: translateY(-50%) scale(1.08);
}

.hero-dots {
  position: absolute;
  bottom: 1.75rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-dots button {
  width: 10px;
  height: 10px;
  border-radius: 9999px;
  background-color: rgba(255, 255, 255, 0.45);
  transition: all 0.3s ease;
  cursor: pointer;
  padding: 0;
}

.hero-dots button:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

.hero-dots button.active {
  width: 28px;
  background-color: #ffffff;
}

/* ---------- Banner Şeridi ---------- */
.gradient-bar {
  background: linear-gradient(100deg, var(--anb-navy) 0%, var(--anb-blue) 60%, var(--anb-sky) 100%);
}

/* ---------- Kartlar ---------- */
.service-card {
  border: 1px solid var(--anb-border);
  border-radius: 1rem;
  background: #ffffff;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px rgba(11, 31, 58, 0.12);
  border-color: var(--anb-blue);
}

.service-icon {
  width: 58px;
  height: 58px;
  border-radius: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--anb-blue), var(--anb-sky));
  color: #ffffff;
  font-size: 1.4rem;
}

/* ---------- Butonlar ---------- */
.btn-anb {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(90deg, var(--anb-blue), var(--anb-sky));
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 1.8rem;
  border-radius: 9999px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
  box-shadow: 0 10px 25px rgba(29, 111, 209, 0.35);
}

.btn-anb:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 35px rgba(29, 111, 209, 0.45);
}

.btn-anb-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 2px solid #ffffff;
  color: #ffffff;
  font-weight: 600;
  padding: 0.8rem 1.8rem;
  border-radius: 9999px;
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.btn-anb-outline:hover {
  background-color: #ffffff;
  color: var(--anb-navy);
  transform: translateY(-2px);
}

.btn-navy {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--anb-navy);
  color: #ffffff;
  font-weight: 600;
  padding: 0.8rem 1.8rem;
  border-radius: 9999px;
  transition: background-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-navy:hover {
  background-color: var(--anb-blue);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(29, 111, 209, 0.35);
}

/* ---------- Section başlığı ---------- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--anb-blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
}

.section-label::before {
  content: "";
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--anb-blue), var(--anb-sky));
}

/* ---------- Süreç kartları ---------- */
.process-card {
  position: relative;
  border: 1px solid var(--anb-border);
  border-radius: 1rem;
  background: #ffffff;
  padding: 1.75rem 1.25rem;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(11, 31, 58, 0.12);
}

.process-number {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: #ffffff;
  background: linear-gradient(135deg, var(--anb-navy), var(--anb-blue));
}

/* ---------- Form ---------- */
.form-field {
  width: 100%;
  border: 1px solid var(--anb-border);
  border-radius: 0.75rem;
  padding: 0.85rem 1rem;
  background-color: #ffffff;
  color: #1f2a37;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  font-size: 0.95rem;
}

.form-field:focus {
  outline: none;
  border-color: var(--anb-blue);
  box-shadow: 0 0 0 4px rgba(29, 111, 209, 0.15);
}

/* ---------- Görünüm (Scroll) Animasyonları ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--anb-navy);
  color: #c7d2e0;
}

.site-footer a {
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: #ffffff;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--anb-gray);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--anb-blue), var(--anb-navy));
  border-radius: 8px;
}

/* ---------- Mobil menü açıkken gövde kilidi ---------- */
@media (max-width: 767px) {
  .mobile-nav {
    display: none;
  }
  .mobile-nav.open {
    display: block;
  }
}