/* ==========================================================================
   İş Dünyası Kitapları Ödülleri - Kurumsal Tasarım Sistemi
   Renk Paleti: Lacivert (#0B192C), Altın (#D4AF37), Antrasit (#1E293B), Beyaz
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --navy-dark: #07101E;
  --navy-primary: #0B192C;
  --navy-secondary: #1E3E62;
  --navy-light: #284B70;
  --gold-primary: #D4AF37;
  --gold-light: #F3C623;
  --gold-pale: #FBF6E2;
  --gold-dark: #996515;
  --gold-gradient: linear-gradient(135deg, #FDE047 0%, #D4AF37 50%, #996515 100%);
  --gold-glow: 0 0 25px rgba(212, 175, 55, 0.35);
  
  --dark-charcoal: #0F172A;
  --dark-slate: #1E293B;
  --dark-muted: #334155;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-light: #F8FAFC;
  
  --bg-light: #F8FAFC;
  --bg-white: #FFFFFF;
  --border-light: #E2E8F0;
  --border-gold: rgba(212, 175, 55, 0.4);
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 14px 34px rgba(11, 25, 44, 0.12);
  --shadow-gold: 0 8px 24px rgba(212, 175, 55, 0.2);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Tipografi */
h1, h2, h3, h4, .serif-heading {
  font-family: 'Cinzel', serif;
  color: var(--navy-dark);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
}

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

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   HEADER TASARIMI (Masaüstü: Menü Logo Altında | Mobil: Hamburger & Butonsuz)
   ========================================================================== */

/* Üst Duyuru ve İletişim Bandı */
.site-top-bar {
  background: var(--navy-dark);
  color: #94A3B8;
  font-size: 0.82rem;
  padding: 7px 0;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}
.site-top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 18px;
}
.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.top-bar-item i {
  color: var(--gold-primary);
}
.top-bar-item a:hover {
  color: var(--gold-light);
}
.top-badge {
  background: rgba(212, 175, 55, 0.15);
  color: var(--gold-light);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(212, 175, 55, 0.3);
}

/* Masaüstü Header */
.site-header {
  background: var(--navy-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  border-bottom: 2px solid var(--gold-primary);
}

/* 1. Kısım: Logo Alanı */
.header-logo-row {
  padding: 16px 0 12px 0;
  background: linear-gradient(180deg, rgba(7, 16, 30, 0.8) 0%, rgba(11, 25, 44, 0.95) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.header-logo-row .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}
.main-logo-img {
  height: 62px;
  width: auto;
}
.header-tagline-text {
  border-left: 2px solid var(--gold-primary);
  padding-left: 14px;
  color: #CBD5E1;
  font-size: 0.85rem;
  line-height: 1.3;
}
.header-tagline-text strong {
  display: block;
  color: var(--gold-light);
  font-family: 'Cinzel', serif;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}

/* Masaüstü Hızlı İletişim & Tarih Bilgisi */
.header-quick-info {
  display: flex;
  align-items: center;
  gap: 20px;
}
.info-pill {
  text-align: right;
}
.info-pill-label {
  display: block;
  font-size: 0.72rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.info-pill-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--gold-primary);
}

/* 2. Kısım: Menü LOGO ALTINDA (Masaüstü Çözümü) */
.desktop-nav-bar {
  background: rgba(11, 25, 44, 0.98);
  backdrop-filter: blur(10px);
}
.desktop-nav-bar .container {
  display: flex;
  justify-content: center;
  align-items: center;
}
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2px;
}
.nav-menu > li {
  position: relative;
}
.nav-menu > li > a {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #E2E8F0;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 12px;
  letter-spacing: 0.2px;
  white-space: nowrap;
}
.nav-menu > li > a:hover,
.nav-menu > li.active > a {
  color: var(--gold-light);
  background: rgba(212, 175, 55, 0.1);
}
.nav-menu > li.active > a {
  border-bottom: 2px solid var(--gold-primary);
}

/* Dropdown Menü (30 Kategori) */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--navy-dark);
  min-width: 320px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-gold);
  border-top: 2px solid var(--gold-primary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 1050;
  padding: 10px 0;
  max-height: 520px;
  overflow-y: auto;
}
.nav-menu > li:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-group-title {
  padding: 8px 18px 4px 18px;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--gold-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  color: #CBD5E1;
  font-size: 0.83rem;
  border-left: 2px solid transparent;
}
.nav-dropdown a i {
  color: var(--gold-primary);
  width: 16px;
  text-align: center;
}
.nav-dropdown a:hover {
  background: rgba(212, 175, 55, 0.12);
  color: #FFFFFF;
  border-left-color: var(--gold-primary);
}

/* Masaüstü Header Aksiyon Butonları */
.desktop-header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ==========================================================================
   MOBİL HEADER (Butonsuz, Sadece Logo ve Hamburger Menü)
   ========================================================================== */
.mobile-header-bar {
  display: none;
  background: var(--navy-primary);
  padding: 12px 16px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--gold-primary);
}
.mobile-logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mobile-logo-link img {
  height: 44px;
}
.mobile-brand-title {
  color: #FFFFFF;
  font-family: 'Cinzel', serif;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  line-height: 1.1;
}
.mobile-brand-title span {
  display: block;
  font-size: 0.75rem;
  color: var(--gold-primary);
  font-weight: 700;
}

/* Hamburger Tetikleyici Buton */
.hamburger-btn {
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid var(--gold-primary);
  color: var(--gold-primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  transition: var(--transition);
}
.hamburger-btn:active, .hamburger-btn:hover {
  background: var(--gold-primary);
  color: var(--navy-dark);
}

/* Mobil Hamburger Menü Çekmecesi (Drawer) */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 2000;
}
.mobile-drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -340px;
  width: 320px;
  max-width: 85%;
  height: 100vh;
  background: var(--navy-dark);
  box-shadow: -10px 0 35px rgba(0, 0, 0, 0.7);
  border-left: 2px solid var(--gold-primary);
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2001;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.mobile-drawer.active {
  right: 0;
}
.drawer-header {
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(11, 25, 44, 0.95);
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}
.drawer-title {
  color: var(--gold-primary);
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  font-weight: 700;
}
.drawer-close-btn {
  background: none;
  border: none;
  color: #94A3B8;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}
.drawer-close-btn:hover {
  color: #FFFFFF;
}

/* Mobil Menü İçindeki AKSİYON BUTONLARI (Kural: Header'da buton yok, buradalar) */
.drawer-actions-box {
  padding: 16px 20px;
  background: rgba(11, 25, 44, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.drawer-actions-box .btn {
  width: 100%;
  justify-content: center;
  padding: 12px 16px;
  font-size: 0.9rem;
}

/* Mobil Menü Linkleri */
.drawer-nav-list {
  list-style: none;
  padding: 12px 0;
  flex: 1;
}
.drawer-nav-list li a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 24px;
  color: #E2E8F0;
  font-size: 0.95rem;
  font-weight: 600;
  border-left: 3px solid transparent;
}
.drawer-nav-list li a i {
  color: var(--gold-primary);
  width: 20px;
  text-align: center;
}
.drawer-nav-list li a:hover,
.drawer-nav-list li.active a {
  background: rgba(212, 175, 55, 0.12);
  color: var(--gold-light);
  border-left-color: var(--gold-primary);
}
.drawer-contact-footer {
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  color: #94A3B8;
}
.drawer-contact-footer a {
  color: var(--gold-primary);
  font-weight: 600;
}

/* ==========================================================================
   BUTONLAR VE ETİKETLER
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
  line-height: 1;
  text-decoration: none;
}
.btn-gold {
  background: var(--gold-gradient);
  color: #07101E;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(212, 175, 55, 0.45);
  filter: brightness(1.05);
}
.btn-gold-sm {
  background: var(--gold-gradient);
  color: #07101E;
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
}
.btn-gold-sm:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.btn-outline-gold {
  background: transparent;
  color: var(--gold-light);
  border: 1.5px solid var(--gold-primary);
}
.btn-outline-gold:hover {
  background: rgba(212, 175, 55, 0.15);
  color: #FFFFFF;
  border-color: var(--gold-light);
}
.btn-outline-gold-sm {
  background: transparent;
  color: var(--gold-light);
  border: 1.5px solid var(--gold-primary);
  padding: 7px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
}
.btn-outline-gold-sm:hover {
  background: var(--gold-primary);
  color: var(--navy-dark);
}
.btn-navy {
  background: var(--navy-primary);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-navy:hover {
  background: var(--navy-secondary);
  color: #FFFFFF;
}
.btn-white {
  background: #FFFFFF;
  color: var(--navy-dark);
}
.btn-white:hover {
  background: var(--gold-pale);
}
.btn-lg {
  padding: 16px 34px;
  font-size: 1.05rem;
}
.btn-block {
  width: 100%;
  justify-content: center;
}

/* Rozetler */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-gold {
  background: rgba(212, 175, 55, 0.18);
  color: #B48A18;
  border: 1px solid rgba(212, 175, 55, 0.4);
}
.badge-navy {
  background: var(--navy-primary);
  color: #FFFFFF;
}
.badge-success {
  background: #DCFCE7;
  color: #15803D;
}
.badge-finalist {
  background: linear-gradient(135deg, #FEF08A, #FDE047);
  color: #854D0E;
  font-weight: 800;
}
.badge-winner {
  background: var(--gold-gradient);
  color: #07101E;
  font-weight: 900;
}

/* ==========================================================================
   HERO / TANITIM ALANI
   ========================================================================== */
.hero-section {
  position: relative;
  background: radial-gradient(circle at 50% 20%, #1E3E62 0%, #0B192C 45%, #07101E 100%);
  color: #FFFFFF;
  padding: 80px 0 90px 0;
  overflow: hidden;
  border-bottom: 3px solid var(--gold-primary);
}
.hero-overlay-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(212, 175, 55, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}
.hero-crest-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 50px;
  color: var(--gold-light);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  color: #FFFFFF;
  margin-bottom: 20px;
  line-height: 1.15;
}
.hero-title .gold-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-subtitle {
  font-size: 1.25rem;
  color: #CBD5E1;
  margin-bottom: 35px;
  line-height: 1.6;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}
.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}
.hero-price-hint {
  display: block;
  font-size: 0.8rem;
  color: var(--navy-dark);
  opacity: 0.8;
  font-weight: 600;
}
.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 40px;
  padding-top: 35px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.hero-stat-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  backdrop-filter: blur(8px);
}
.hero-stat-num {
  font-family: 'Cinzel', serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: 6px;
}
.hero-stat-label {
  font-size: 0.8rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   BÖLÜM BAŞLIKLARI VE KARTLAR
   ========================================================================== */
.section {
  padding: 70px 0;
}
.section-dark {
  background: var(--navy-primary);
  color: #FFFFFF;
}
.section-dark p {
  color: #CBD5E1;
}
.section-dark h2, .section-dark h3 {
  color: #FFFFFF;
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px auto;
}
.section-tag {
  display: inline-block;
  color: var(--gold-dark);
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.section-dark .section-tag {
  color: var(--gold-light);
}
.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 14px;
}
.section-desc {
  font-size: 1.05rem;
}

/* Grid Düzenleri */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

/* ==========================================================================
   KİTAP KATALOĞU KARTLARI
   ========================================================================== */
.book-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.book-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-primary);
}
.book-cover-wrap {
  position: relative;
  background: #0B192C;
  padding: 24px 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}
.book-cover-img {
  width: 160px;
  height: 230px;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  transition: var(--transition);
}
.book-card:hover .book-cover-img {
  transform: scale(1.04);
}
.book-badge-overlay {
  position: absolute;
  top: 12px;
  right: 12px;
}
.book-info {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.book-category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.book-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy-dark);
  margin-bottom: 4px;
  line-height: 1.3;
}
.book-author {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 12px;
}
.book-meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.meta-pill {
  background: #F1F5F9;
  padding: 2px 8px;
  border-radius: 4px;
}
.book-card-footer {
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.vote-count-box {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy-secondary);
}
.vote-count-box i {
  color: var(--gold-primary);
}

/* ==========================================================================
   HESAPLAYICI VE BAŞVURU PAKETLERİ
   ========================================================================== */
.pricing-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}
.pricing-card:hover {
  border-color: var(--gold-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.pricing-card.featured {
  border: 2px solid var(--gold-primary);
  box-shadow: var(--shadow-gold);
  background: linear-gradient(180deg, #FFFFFF 0%, #FDFBF4 100%);
}
.pricing-featured-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold-gradient);
  color: var(--navy-dark);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.pricing-title {
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.pricing-price {
  font-family: 'Cinzel', serif;
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--navy-dark);
  margin: 16px 0;
}
.pricing-features {
  list-style: none;
  margin: 20px 0 28px 0;
  flex: 1;
}
.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.pricing-features li i {
  color: #10B981;
  margin-top: 3px;
}

/* İnteraktif Hesaplayıcı Bileşeni */
.calculator-box {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 35px;
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-lg);
}
.calc-field-group {
  margin-bottom: 22px;
}
.calc-label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 8px;
  color: var(--navy-dark);
}
.calc-input, .calc-select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}
.calc-input:focus, .calc-select:focus {
  outline: none;
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}
.calc-result-panel {
  background: var(--navy-dark);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--gold-primary);
}
.calc-total-amount {
  font-family: 'Cinzel', serif;
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--gold-light);
  margin: 10px 0;
}

/* ==========================================================================
   DEĞERLENDİRME MOTORU & PUANLAMA ORANI
   ========================================================================== */
.formula-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}
.formula-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
}
.formula-percent {
  font-family: 'Cinzel', serif;
  font-size: 3rem;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: 8px;
}
.formula-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

/* ==========================================================================
   MODALLAR VE ALERTLER
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal-window {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 580px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-gold);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  padding: 30px;
}
.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  font-size: 1.3rem;
  color: #94A3B8;
  cursor: pointer;
}
.modal-close:hover {
  color: var(--navy-dark);
}

.alert {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-success {
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #86EFAC;
}
.alert-danger {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}
.alert-info {
  background: #E0F2FE;
  color: #075985;
  border: 1px solid #7DD3FC;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--navy-dark);
  color: #94A3B8;
  border-top: 3px solid var(--gold-primary);
  padding: 65px 0 25px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 35px;
  margin-bottom: 45px;
}
.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--gold-primary);
  padding-bottom: 8px;
  display: inline-block;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: #CBD5E1;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: var(--gold-light);
  transform: translateX(4px);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  font-size: 0.82rem;
}

/* ==========================================================================
   RESPONSIVE UYARLAMALAR
   ========================================================================== */
@media (max-width: 992px) {
  /* Masaüstü menü ve logo satırını gizle, mobil header'ı aktif et */
  .header-logo-row,
  .desktop-nav-bar {
    display: none !important;
  }
  .mobile-header-bar {
    display: flex !important;
  }
  
  .hero-title {
    font-size: 2.4rem;
  }
  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3, .grid-4, .formula-cards-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 1.85rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .grid-2, .grid-3, .grid-4, .formula-cards-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats-row {
    grid-template-columns: 1fr;
  }
  .hero-cta-group {
    flex-direction: column;
  }
  .hero-cta-group .btn {
    width: 100%;
  }
}