/* ============================================
   YILDIZPEN - Ana CSS Dosyası
   Tüm sayfalar bu dosyayı kullanır.
   Renk, font ve genel tasarım buradan yönetilir.
   ============================================ */

/* Google Fonts - Cormorant Garamond (başlıklar) + DM Sans (metin) */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500;600&display=swap');

/* --- CSS DEĞİŞKENLERİ (Renkleri buradan değiştirebilirsiniz) --- */
:root {
  --siyah: #0a0a0a;
  --koyu: #141414;
  --panel: #1a1a1a;
  --sinir: #2a2a2a;
  --altin: #c9a84c;
  --altin-acik: #e8c97a;
  --beyaz: #f5f0e8;
  --gri: #8a8a8a;
  --acik-gri: #d0ccc4;
  --font-baslik: 'Cormorant Garamond', serif;
  --font-metin: 'DM Sans', sans-serif;
  --gecis: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- GENEL SIFIRLAMA --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--siyah);
  color: var(--beyaz);
  font-family: var(--font-metin);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- NAVİGASYON (Header) --- */
/* Sayfanın üstündeki menü çubuğu */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 5%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sinir);
  transition: var(--gecis);
}

.nav.scrolled {
  height: 65px;
  background: rgba(10,10,10,0.98);
}

/* Logo yazısı */
.nav-logo {
  font-family: var(--font-baslik);
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--beyaz);
  text-transform: uppercase;
}

.nav-logo span {
  color: var(--altin);
}

/* Masaüstü menü linkleri */
.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--acik-gri);
  transition: var(--gecis);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--altin);
  transition: width 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--altin);
}

.nav-links a:hover::after, .nav-links a.active::after {
  width: 100%;
}

/* Mobil menü hamburger butonu - varsayılan gizli */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 25px; height: 2px;
  background: var(--beyaz);
  transition: var(--gecis);
}

/* Mobil menü açıkken hamburger animasyonu */
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobil açılır menü */
.nav-mobile {
  display: none;
  position: fixed;
  top: 80px; left: 0; right: 0;
  background: rgba(10,10,10,0.98);
  border-bottom: 1px solid var(--sinir);
  padding: 1.5rem 5%;
  flex-direction: column;
  gap: 0;
  z-index: 999;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  padding: 1rem 0;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--acik-gri);
  border-bottom: 1px solid var(--sinir);
  transition: var(--gecis);
}

.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--altin); padding-left: 10px; }

/* --- FOOTER (Alt bölüm) --- */
footer {
  background: var(--koyu);
  border-top: 1px solid var(--sinir);
  padding: 4rem 5% 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-baslik);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-logo span { color: var(--altin); }

.footer-desc {
  color: var(--gri);
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--altin);
  margin-bottom: 1.2rem;
}

.footer-col a, .footer-col p {
  display: block;
  color: var(--gri);
  font-size: 0.88rem;
  margin-bottom: 0.6rem;
  transition: var(--gecis);
}

.footer-col a:hover { color: var(--beyaz); }

.footer-bottom {
  border-top: 1px solid var(--sinir);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--gri);
  font-size: 0.78rem;
  letter-spacing: 1px;
}

/* --- ORTAK BÖLÜM BAŞLIKLARI --- */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--altin);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-baslik);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  color: var(--beyaz);
  line-height: 1.2;
}

.section-title em {
  font-style: italic;
  color: var(--altin);
}

/* --- BUTONLAR --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.5rem;
  background: var(--altin);
  color: var(--siyah);
  font-family: var(--font-metin);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--gecis);
}

.btn-primary:hover {
  background: var(--altin-acik);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.5rem;
  background: transparent;
  color: var(--beyaz);
  font-family: var(--font-metin);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--gecis);
}

.btn-outline:hover {
  border-color: var(--altin);
  color: var(--altin);
}

/* --- SAYFA İÇERİK ALANI --- */
/* Sayfaların içeriği navbarın altında başlasın diye */
.page-content {
  padding-top: 80px;
}

/* --- MOBİL RESPONSIVE --- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* --- FADE-IN ANİMASYONU --- */
/* Sayfaya girişte elemanlar yavaşça belirir */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  animation: fadeUp 0.8s ease forwards;
}

.fade-up-delay-1 { animation-delay: 0.1s; opacity: 0; animation-fill-mode: forwards; animation-name: fadeUp; animation-duration: 0.8s; }
.fade-up-delay-2 { animation-delay: 0.25s; opacity: 0; animation-fill-mode: forwards; animation-name: fadeUp; animation-duration: 0.8s; }
.fade-up-delay-3 { animation-delay: 0.4s; opacity: 0; animation-fill-mode: forwards; animation-name: fadeUp; animation-duration: 0.8s; }
.fade-up-delay-4 { animation-delay: 0.55s; opacity: 0; animation-fill-mode: forwards; animation-name: fadeUp; animation-duration: 0.8s; }

/* Scroll ile tetiklenen animasyon */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* Checkbox'ı normale döndür */
.form-group input[type="checkbox"] {
  -webkit-appearance: checkbox !important;
  appearance: checkbox !important;
  width: auto !important;
  cursor: pointer;
}

.form-group input[type="checkbox"]:focus {
  outline: none;
  box-shadow: none;
}