/* ============================================================
   Köse Mimarlık — Ortak Stil Dosyası
   ============================================================ */

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Jost', 'Segoe UI', sans-serif; color: #1a1a1a; background: #fff; }
img { display: block; max-width: 100%; }
a { color: inherit; }

/* ── NAVBAR ── */
nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 10px clamp(40px, 8vw, 160px);
  transition: background 0.35s, box-shadow 0.35s;
  border-bottom: 1px solid rgba(255,255,255,0.18);
}

/* Index: başta şeffaf, scroll'da koyulaşır */
nav.transparent { background: transparent; }
nav.scrolled    { background: rgba(12,12,12,0.96); backdrop-filter: blur(14px); box-shadow: 0 2px 24px rgba(0,0,0,0.4); border-bottom-color: rgba(255,255,255,0.07); }

/* İç sayfalar: baştan koyu */
nav.dark-nav    { background: #0f0f0f; border-bottom: 1px solid rgba(255,255,255,0.08); }

.nav-logo a { display: flex; align-items: center; }
.nav-logo img { height: 3.8rem; }

.nav-links {
  display: flex; list-style: none;
  gap: 40px; justify-content: center;
}
.nav-links a {
  text-decoration: none; color: #fff;
  font-size: 0.82rem; letter-spacing: 0.1em;
  text-transform: uppercase; font-weight: 600;
  transition: color 0.2s;
  position: relative; padding-bottom: 3px;
}
.nav-links a::after {
  content: ''; position: absolute;
  bottom: 0; left: 0; width: 0; height: 1px;
  background: #c9a96e; transition: width 0.25s;
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a:hover, .nav-links a.active { color: #c9a96e; }

.nav-right { display: flex; align-items: center; gap: 14px; justify-content: flex-end; }

.nav-contact-btn {
  text-decoration: none; color: #fff;
  font-size: 0.75rem; letter-spacing: 0.13em;
  text-transform: uppercase; font-weight: 400;
  border: 1px solid rgba(255,255,255,0.5);
  padding: 10px 22px;
  transition: background 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.nav-contact-btn:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.8); }

.nav-toggle {
  display: none; flex-direction: column;
  gap: 5px; cursor: pointer;
  background: none; border: none; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: #fff; transition: all 0.3s;
  transform-origin: center;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── FOOTER ── */
footer { background: #0f0f0f; color: #fff; padding: 80px 8vw 36px; }

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img { height: 3.2rem; margin-bottom: 22px; }
.footer-brand p {
  font-size: 0.85rem; line-height: 1.9;
  color: rgba(255,255,255,0.45); max-width: 270px;
  font-weight: 300;
}

.footer-col h4 {
  font-family: 'Jost', sans-serif; font-weight: 300;
  font-size: 0.7rem; letter-spacing: 0.26em;
  text-transform: uppercase; color: #c9a96e;
  margin-bottom: 22px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 13px; }
.footer-col ul li a {
  text-decoration: none;
  color: rgba(255,255,255,0.48);
  font-size: 0.85rem; font-weight: 300;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: #c9a96e; }

.footer-contact-info p {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.45);
  line-height: 2.1; font-weight: 300;
}
.footer-contact-info p span {
  display: block; color: rgba(255,255,255,0.65);
  margin-top: 2px;
}

.footer-bottom {
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 16px;
}
.footer-bottom p { font-size: 0.75rem; color: rgba(255,255,255,0.25); }

.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.4); text-decoration: none;
  font-size: 0.72rem; letter-spacing: 0.03em;
  font-family: 'Jost', sans-serif;
  transition: border-color 0.25s, color 0.25s;
}
.footer-social a:hover { border-color: #c9a96e; color: #c9a96e; }

/* ── SECTION HEADER ── */
.section-header { text-align: center; margin-bottom: 68px; }
.section-label {
  font-family: 'Jost', sans-serif; font-weight: 300;
  font-size: 0.73rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: #c9a96e;
  display: block; margin-bottom: 14px;
}
.section-header h2 {
  font-family: 'Playfair Display', serif;
  font-style: italic; font-weight: 700;
  font-size: clamp(2rem, 5vw, 3rem);
  color: #1a1a1a; line-height: 1.1;
}
.section-header h2.light { color: #fff; }
.section-line {
  display: block; width: 48px; height: 1px;
  background: #c9a96e; margin: 22px auto 0;
}

/* ── PAGE HERO (iç sayfalar) ── */
.page-hero {
  height: 55vh; min-height: 400px;
  position: relative;
  display: flex; align-items: flex-end;
  padding: 0 8vw 68px;
  overflow: hidden; background: #111;
}
.page-hero-bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0.38;
}
.page-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.72) 100%);
}
.page-hero-content { position: relative; z-index: 1; }
.hero-label {
  font-size: 0.7rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: #c9a96e;
  font-family: 'Jost', sans-serif; font-weight: 300;
  display: block; margin-bottom: 14px;
}
.page-hero-content h1 {
  font-family: 'Playfair Display', serif;
  font-style: italic; font-weight: 700;
  font-size: clamp(2.8rem, 7vw, 5rem);
  color: #fff; line-height: 1.05;
}
.page-hero-content p {
  font-size: 1rem; color: rgba(255,255,255,0.6);
  font-weight: 300; max-width: 540px;
  line-height: 1.7; margin-top: 18px; letter-spacing: 0.02em;
}

/* ── BUTONLAR ── */
.btn {
  display: inline-block; text-decoration: none;
  font-family: 'Jost', sans-serif;
  font-size: 0.78rem; letter-spacing: 0.16em;
  text-transform: uppercase; padding: 14px 36px;
  border: 1px solid currentColor;
  transition: background 0.25s, color 0.25s;
  cursor: pointer; background: none;
}
.btn.dark  { color: #1a1a1a; }
.btn.dark:hover  { background: #1a1a1a; color: #f5f3f0; }
.btn.light { color: #fff; }
.btn.light:hover { background: #fff; color: #1a1a1a; }
.btn.gold  { color: #c9a96e; border-color: #c9a96e; }
.btn.gold:hover  { background: #c9a96e; color: #fff; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 10px 20px; grid-template-columns: auto auto; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute; top: calc(3.8rem + 20px);
    left: 0; width: 100%;
    flex-direction: column; gap: 0;
    background: rgba(10,10,10,0.97); backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255,255,255,0.07);
    max-height: 0; overflow: hidden;
    transition: max-height 0.38s ease;
  }
  .nav-links.open { max-height: 500px; }
  .nav-links li a { display: block; padding: 16px 24px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav-contact-btn { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .page-hero { padding: 0 6vw 52px; }
}