/* ==========================================================================
   DOKTORLAR.CLUB - Kurumsal Tasarım Sistemi & CSS
   Türkiye Doktor Profesyonel Ağı + Yapay Zekâ Bilgi Platformu
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Renk Paleti */
  --color-primary: #0f172a;       /* Gece Laciverti / Slate */
  --color-primary-dark: #0a0f1d;  /* Derin Koyu */
  --color-navy-surface: #1e293b;  /* Yüzey Lacivert */
  --color-accent: #0284c7;       /* Medikal Mavi */
  --color-accent-light: #38bdf8; /* Açık Gökyüzü Mavi */
  --color-cyan: #06b6d4;         /* Canlı Turkuaz */
  --color-teal: #0d9488;         /* Medikal Zümrüt */
  --color-emerald: #10b981;      /* Doğrulanmış Yeşil */
  --color-warning: #f59e0b;      /* Uyarı / Kehribar */
  --color-danger: #ef4444;       /* Acil / Kırmızı */
  
  --color-bg: #f8fafc;           /* Arka Plan Açık Gri */
  --color-card: #ffffff;         /* Kart Beyaz */
  --color-text-main: #0f172a;    /* Ana Metin */
  --color-text-muted: #64748b;   /* İkincil Metin */
  --color-border: #e2e8f0;       /* Kenarlık */
  --color-border-dark: #334155;  /* Koyu Kenarlık */

  /* Tipografi */
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Plus Jakarta Sans', sans-serif;

  /* Gölgeler & Efektler */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.25);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-accent-light);
}

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

/* Kapsayıcı */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ==========================================================================
   HEADER & MENÜ (Masaüstünde Logo Üstte, Menü Tamamen Logo Altında)
   ========================================================================== */

.site-header {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Üst Bar: Logo + Arama + Telefon + Giriş/Kayıt */
.header-topbar {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Logo Alanı */
.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-symbol {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #0284c7 0%, #0d9488 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-size: 22px;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #ffffff;
  line-height: 1.1;
}

.brand-title span {
  color: var(--color-accent-light);
}

.brand-tagline {
  font-size: 11px;
  color: #94a3b8;
  font-weight: 500;
  letter-spacing: 0.2px;
}

/* Üst Hızlı Arama Kutusu */
.header-search-wrap {
  flex: 1;
  max-width: 420px;
  position: relative;
}

.header-search-form {
  position: relative;
  width: 100%;
}

.header-search-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 10px 42px 10px 16px;
  color: #ffffff;
  font-size: 13px;
  outline: none;
  transition: var(--transition);
}

.header-search-input:focus {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-accent-light);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.header-search-input::placeholder {
  color: #94a3b8;
}

.header-search-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.header-search-btn:hover {
  color: var(--color-accent-light);
}

/* Üst Sağ Eylemler: Telefon ve Kullanıcı */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-phone-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #f1f5f9;
  font-weight: 600;
  font-size: 13px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.header-phone-link svg {
  color: var(--color-emerald);
}

.header-phone-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-accent-light);
}

.header-auth-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-header-login {
  color: #e2e8f0;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.btn-header-login:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.btn-header-register {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(56, 189, 248, 0.3);
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.3);
  transition: var(--transition);
}

.btn-header-register:hover {
  background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
  color: #ffffff;
  transform: translateY(-1px);
}

/* ==========================================================================
   MASAÜSTÜ NAVİGASYON BARI (Tam Genişlikte, Logonun Altında)
   ========================================================================== */

.header-navbar-row {
  background: #0d1527;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  list-style: none;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.desktop-nav::-webkit-scrollbar {
  display: none;
}

.desktop-nav > li {
  white-space: nowrap;
}

.desktop-nav > li > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  color: #cbd5e1;
  font-size: 13.5px;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.desktop-nav > li > a:hover,
.desktop-nav > li.active > a {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.04);
  border-bottom-color: var(--color-accent-light);
}

.nav-badge-ai {
  background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  color: #ffffff;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   MOBİL HAMBURGER VE OFF-CANVAS ÇEKMECESİ
   ========================================================================== */

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 8px 10px;
  color: #ffffff;
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  height: 100vh;
  background: #0f172a;
  z-index: 2000;
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.5);
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1999;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-drawer-backdrop.active {
  display: block;
  opacity: 1;
}

.mobile-drawer-header {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-drawer-close {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
}

.mobile-drawer-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  color: #e2e8f0;
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  transition: var(--transition);
}

.mobile-nav-list a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-accent-light);
}

.mobile-drawer-footer {
  padding: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   ORTAK BUTONLAR & BİLEŞENLER
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(2, 132, 199, 0.35);
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #f8fafc;
  color: var(--color-accent);
  border-color: #cbd5e1;
}

.btn-dark {
  background: var(--color-primary);
  color: #ffffff;
}

.btn-dark:hover {
  background: var(--color-navy-surface);
  color: #ffffff;
}

.btn-emerald {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-emerald:hover {
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
}

/* Rozetler (Badges) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
}

.badge-verified {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-author {
  background: rgba(139, 92, 246, 0.12);
  color: #7c3aed;
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.badge-specialty {
  background: rgba(2, 132, 199, 0.08);
  color: #0284c7;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

/* ==========================================================================
   ANA SAYFA & BÖLÜMLER (17 BÖLÜM MİMARİSİ)
   ========================================================================== */

.hero-section {
  background: radial-gradient(circle at top right, #1e293b 0%, #0a0f1d 70%);
  color: #ffffff;
  padding: 70px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--color-accent-light);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.hero-title span {
  background: linear-gradient(135deg, #38bdf8 0%, #06b6d4 50%, #10b981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 17px;
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.metric-number {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
}

.metric-number span {
  color: var(--color-accent-light);
}

.metric-label {
  font-size: 12px;
  color: #94a3b8;
  font-weight: 500;
}

/* Hero Sağ Taraf: Canlı AI Vitrini Kartı */
.hero-ai-card {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.ai-badge-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.ai-pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-emerald);
  display: inline-block;
  margin-right: 6px;
}

.hero-ai-input-group {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.hero-ai-input {
  flex: 1;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: #ffffff;
  font-size: 14px;
  outline: none;
}

.hero-ai-input:focus {
  border-color: var(--color-accent-light);
}

.hero-ai-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.hero-ai-tag-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.hero-ai-tag-btn:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--color-accent-light);
  color: #ffffff;
}

/* Bölüm Başlıkları */
.section-padding {
  padding: 70px 0;
}

.section-header {
  margin-bottom: 45px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.section-title-wrap {
  max-width: 680px;
}

.section-subtitle-tag {
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 16px;
  margin-top: 10px;
}

/* Kart Gridleri */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* Doktor Kartı */
.doctor-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.doctor-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.doctor-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.doctor-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 20px;
  color: var(--color-primary);
  border: 2px solid #ffffff;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.doctor-meta-info {
  flex: 1;
  min-width: 0;
}

.doctor-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

.doctor-specialty-badge {
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 600;
}

.doctor-details-list {
  list-style: none;
  font-size: 13px;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  flex: 1;
}

.doctor-details-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Kitap Kartı */
.book-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.book-card-cover {
  height: 190px;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  position: relative;
  padding: 20px;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-bottom: 3px solid var(--color-accent);
}

.book-card-specialty {
  position: absolute;
  top: 15px;
  left: 15px;
  background: rgba(2, 132, 199, 0.85);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.book-card-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  color: #ffffff;
}

.book-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.book-author-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.book-summary-text {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

/* Topluluk Kartı (Uzmanlık Kulüpleri) */
.community-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
}

.community-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.community-icon {
  width: 48px;
  height: 48px;
  background: rgba(2, 132, 199, 0.08);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.community-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
}

.community-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Kitaplara Sor & RAG Arama Bölümü */
.ask-books-section {
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 50px;
  margin: 40px 0;
  box-shadow: var(--shadow-lg);
}

.citation-box {
  background: rgba(255, 255, 255, 0.06);
  border-left: 4px solid var(--color-accent-light);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-top: 15px;
}

.citation-header {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent-light);
  margin-bottom: 6px;
}

.citation-content {
  font-size: 14px;
  color: #e2e8f0;
  line-height: 1.6;
}

.citation-source {
  margin-top: 10px;
  font-size: 12px;
  color: #94a3b8;
  font-style: italic;
}

/* ==========================================================================
   FOOTER (İletişim +90 532 504 69 66)
   ========================================================================== */

.site-footer {
  background: #090e1a;
  color: #94a3b8;
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  margin-top: 14px;
  margin-bottom: 20px;
  color: #94a3b8;
}

.footer-phone-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  color: #ffffff;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: var(--transition);
}

.footer-phone-box:hover {
  background: rgba(2, 132, 199, 0.2);
  border-color: var(--color-accent-light);
  color: #ffffff;
}

.footer-phone-box svg {
  color: var(--color-emerald);
}

.footer-col h4 {
  font-family: var(--font-heading);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 13.5px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #64748b;
}

.footer-disclaimer {
  max-width: 680px;
  line-height: 1.5;
}

/* ==========================================================================
   RESPONSIVE MEDYA SORGULARI (MOBİL & TABLET UYUMU)
   ========================================================================== */

@media (max-width: 1024px) {
  /* Masaüstü Navigasyon Gizlenir, Hamburger Menü Devreye Girer */
  .header-navbar-row {
    display: none;
  }

  /* Mobil görünümde Giriş Yap ve Doktor Kayıt butonları header'dan gizlenir (hamburger menü içinde mevcuttur) */
  .header-auth-group {
    display: none !important;
  }

  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .header-search-wrap {
    display: none; /* Mobilde çekmecede veya modalda açılır */
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .grid-4, .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }

  .header-phone-link span {
    display: none; /* Küçük ekranda sadece ikon */
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .ask-books-section {
    padding: 24px;
  }
}