/* ============ TEKUIST ORTAK STİL ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

/* ============ METİN KOPYALAMA KORUMASI ============ */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

:root {
  --bg: #16181d;
  --bg-2: #1e2128;
  --bg-3: #232730;
  --bg-nav: rgba(22,24,29,0.96);
  --border: #2a2e36;
  --border-2: #2f343d;
  --text: #e8e8e8;
  --text-muted: #9aa3b0;
  --text-dim: #7a8390;
  --accent: #4db8ff;
  --accent-hover: #6fc6ff;
  --accent-soft: rgba(77,184,255,0.12);
  --accent-border: rgba(77,184,255,0.4);
}

[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-2: #ffffff;
  --bg-3: #eef1f5;
  --bg-nav: rgba(255,255,255,0.96);
  --border: #dde2e8;
  --border-2: #c8d0d9;
  --text: #1a1d22;
  --text-muted: #5a626d;
  --text-dim: #8a929c;
  --accent: #0088dd;
  --accent-hover: #006bb0;
  --accent-soft: rgba(0,136,221,0.1);
  --accent-border: rgba(0,136,221,0.4);
}

body {
  font-family: 'Segoe UI', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s, color 0.3s;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

nav {
  background: var(--bg-nav);
  height: 70px;                    /* ← Sabit yükseklik */
  padding: 0 40px;                 /* ← Dikey padding'i sıfırla */
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
  backdrop-filter: blur(10px);
  overflow: visible;
}
.logo {
  font-size: 22px; font-weight: 800;
  letter-spacing: 3px; color: var(--accent);
}
.logo span { color: var(--text); }

.nav-links {
  display: flex; gap: 26px;
  list-style: none; align-items: center;
}
.nav-links a {
  color: var(--text-muted);
  font-weight: 600; font-size: 14px;
  transition: color 0.2s; position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-links a.active::after {
  content: ''; position: absolute;
  bottom: -6px; left: 0;
  width: 100%; height: 2px; background: var(--accent);
}

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

.icon-btn {
  background: transparent;
  border: 1px solid var(--border-2);
  color: var(--text-muted);
  width: 38px; height: 38px;
  border-radius: 8px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.icon-btn svg { width: 18px; height: 18px; }

.lang-btn {
  width: auto;
  padding: 0 12px;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.5px;
}
.mobile-lang-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 20px;
  padding: 10px 0;
  background: transparent;
  border: 1px solid var(--border-2);
  color: var(--text-muted);
  border-radius: 8px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.mobile-lang-btn:hover { border-color: var(--accent); color: var(--accent); }

.hamburger { display: none; }

.mobile-menu {
  position: fixed;
  top: 0; right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--bg-2);
  border-left: 1px solid var(--border);
  z-index: 300;
  padding: 30px 25px;
  transition: right 0.3s ease;
  overflow-y: auto;
}
.mobile-menu.open { right: 0; }
.mobile-menu .close-btn {
  background: transparent; border: none;
  color: var(--text-muted); cursor: pointer;
  margin-bottom: 30px; padding: 5px;
}
.mobile-menu .close-btn svg { width: 24px; height: 24px; }
.mobile-menu ul { list-style: none; }
.mobile-menu ul li { margin-bottom: 8px; }
.mobile-menu ul li a {
  color: var(--text-muted);
  font-size: 16px; font-weight: 600;
  padding: 12px 0; display: block;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.2s;
}
.mobile-menu ul li a:hover, .mobile-menu ul li a.active {
  color: var(--accent); padding-left: 8px;
}

.mobile-contact {
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.mobile-contact-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  font-weight: 700;
  margin-bottom: 15px;
}
.mobile-contact-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  transition: color 0.2s, padding-left 0.2s;
  word-break: break-all;
}
.mobile-contact-link:hover {
  color: var(--accent);
  padding-left: 5px;
}
.mobile-contact-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--accent);
}

.overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 250;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}
.overlay.open { opacity: 1; pointer-events: auto; }

.btn {
  padding: 13px 26px; border-radius: 8px;
  font-weight: 700; font-size: 14px;
  transition: all 0.25s;
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer; border: none; font-family: inherit;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); color: #0f1115; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-3px); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--border-2);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-glass {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-3px);
}
[data-theme="light"] .btn-glass {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: var(--text);
}
[data-theme="light"] .btn-glass:hover {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.2);
}

.section { padding: 60px 40px; }
.section h2 {
  font-size: 26px; margin-bottom: 10px;
  border-left: 4px solid var(--accent);
  padding-left: 15px; color: var(--text);
}
.section .subtitle {
  color: var(--text-dim); margin-bottom: 35px;
  padding-left: 19px; font-size: 13px;
}

.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 18px;
  max-width: 500px; margin: 0 auto 35px;
  transition: border-color 0.2s;
}
.search-bar:focus-within { border-color: var(--accent); }
.search-bar svg { width: 18px; height: 18px; color: var(--text-dim); flex-shrink: 0; }
.search-bar input {
  background: transparent; border: none; outline: none;
  color: var(--text); font-size: 14px;
  width: 100%; font-family: inherit;
}
.search-bar input::placeholder { color: var(--text-dim); }

footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 50px 40px 25px;
  margin-top: 60px;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px; padding-bottom: 30px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo { display: inline-block; margin-bottom: 12px; }
.footer-brand p {
  color: var(--text-dim); font-size: 13px;
  line-height: 1.7; max-width: 320px;
}
.footer-col h4 {
  color: var(--text); font-size: 13px;
  text-transform: uppercase; letter-spacing: 1.5px;
  margin-bottom: 18px; font-weight: 700;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: var(--text-dim); font-size: 13px;
  transition: color 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
}
.footer-col ul li a:hover { color: var(--accent); }
.footer-col ul li a svg { width: 15px; height: 15px; }
.footer-bottom {
  max-width: 1100px; margin: 0 auto;
  padding-top: 25px; display: flex;
  justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 15px;
}
.footer-bottom p { color: var(--text-dim); font-size: 12px; }
.footer-bottom .disc {
  font-size: 11px; color: var(--text-dim);
  max-width: 500px; line-height: 1.6; opacity: 0.75;
}

.spinner {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: #000; z-index: 5;
}
.spinner.hidden { display: none; }
.spinner svg {
  width: 50px; height: 50px;
  animation: spin 1s linear infinite;
  color: var(--accent);
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 768px) {
  nav { padding: 14px 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 45px 20px; }
  footer { padding: 40px 20px 20px; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
  .search-bar { margin-bottom: 25px; }
}
/* ============ YORUM SİSTEMİ ============ */
.comments-section {
  margin-top: 40px;
  padding: 30px 20px;
  background: var(--bg-2);
  border-radius: 12px;
  border: 1px solid var(--border);
}
.comments-section h3 {
  font-size: 20px;
  margin-bottom: 20px;
  border-left: 4px solid var(--accent);
  padding-left: 15px;
  color: var(--text);
}