/* ==========================================================================
   Meltem Çal Book - Modern, Canlı & Editoryal Tasarım Sistemi
   Gelişmiş Tipografi, Zengin Renk Paleti, Glassmorphism & WCAG 2.2 AA
   ========================================================================== */

:root {
  /* Renk Paleti - Canlı ve Harmonik Tonlar */
  --color-midnight: #0f131c;
  --color-midnight-card: #151923;
  --color-plum: #281726;
  --color-plum-light: #381f35;
  --color-yellow: #FFE000;
  --color-yellow-glow: #ffd000;
  --color-pear: #B8C94A;
  --color-pear-bright: #c8dc47;
  --color-apple: #A82432;
  --color-apple-bright: #d12e40;
  --color-violet: #8432a8;
  --color-cream: #F8F5EE;
  --color-cream-light: #FFFFFF;
  --color-text-dark: #1e1d24;
  --color-text-muted: #5e5a6a;
  --color-border-light: rgba(30, 29, 36, 0.1);
  --color-border-dark: rgba(255, 255, 255, 0.14);

  /* Modern Tipografi (Google Fonts Plus Jakarta Sans & Playfair Display) */
  --font-serif: "Playfair Display", "Georgia", serif;
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --container-max: 1220px;
  --container-narrow: 880px;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  --shadow-subtle: 0 8px 30px rgba(15, 19, 28, 0.06);
  --shadow-card: 0 14px 40px rgba(15, 19, 28, 0.1);
  --shadow-hover: 0 20px 50px rgba(15, 19, 28, 0.16);
  --shadow-glow-yellow: 0 0 35px rgba(255, 224, 0, 0.45);
  --shadow-glow-red: 0 0 35px rgba(168, 36, 50, 0.35);
  --shadow-glow-green: 0 0 35px rgba(184, 201, 74, 0.35);
  --shadow-book: -12px 18px 45px rgba(0, 0, 0, 0.6), -4px 6px 15px rgba(0, 0, 0, 0.3);

  --transition-smooth: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: all 0.15s ease-in-out;
}

/* Reset & Temel Ayarlar */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-dark);
  background-color: var(--color-cream);
  line-height: 1.7;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: inherit;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

p {
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

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

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-yellow);
  outline-offset: 3px;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* ==========================================================================
   Modern Tipografi & Etiket Rozetleri
   ========================================================================== */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-pear);
  margin-bottom: 1rem;
  padding: 0.35rem 0.9rem;
  background: rgba(184, 201, 74, 0.12);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(184, 201, 74, 0.3);
}

.section-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-yellow);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-yellow);
}

.section-title {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  margin-bottom: 1.25rem;
  color: var(--color-midnight);
}

.section-subtitle {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  max-width: 680px;
  line-height: 1.75;
}

/* ==========================================================================
   Modern & Parlak Butonlar
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.95rem 2rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-smooth);
  text-align: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, #FFE000 0%, #FFC400 100%);
  color: var(--color-midnight);
  border-color: #FFE000;
  box-shadow: 0 8px 24px rgba(255, 224, 0, 0.38);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FFF04D 0%, #FFD000 100%);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(255, 224, 0, 0.55);
}

.btn-glow {
  box-shadow: 0 0 25px rgba(255, 224, 0, 0.45), 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-glow:hover {
  box-shadow: 0 0 35px rgba(255, 224, 0, 0.65), 0 12px 28px rgba(0, 0, 0, 0.3);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--color-yellow);
  color: var(--color-yellow);
  transform: translateY(-3px);
}

.btn-outline-dark {
  background: #ffffff;
  color: var(--color-midnight);
  border: 1.5px solid var(--color-border-light);
  box-shadow: var(--shadow-subtle);
}

.btn-outline-dark:hover {
  background: var(--color-midnight);
  color: #ffffff;
  border-color: var(--color-midnight);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: linear-gradient(135deg, #30e574 0%, #15a090 100%);
  color: #FFFFFF;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.45);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   1. ÜST DUYURU ŞERİDİ (Announcement Bar)
   ========================================================================== */
.announcement-bar {
  background: linear-gradient(90deg, #1f1424 0%, #2e1a32 50%, #151923 100%);
  color: #FFFFFF;
  font-size: 0.875rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid rgba(255, 224, 0, 0.2);
  position: relative;
  z-index: 1010;
}

.announcement-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.announcement-text {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
}

.announcement-link {
  color: var(--color-yellow);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.announcement-link:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ==========================================================================
   2. SABİT ÜST MENÜ (Header & Glassmorphism)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 19, 28, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition-smooth);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  gap: 1.5rem;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.site-logo-img {
  max-height: 68px;
  width: auto;
  display: block;
  filter: drop-shadow(0 4px 16px rgba(255, 224, 0, 0.35));
  transition: var(--transition-smooth);
}

.site-logo-img:hover {
  transform: scale(1.04);
  filter: drop-shadow(0 8px 24px rgba(255, 224, 0, 0.6));
}

.footer-logo-img {
  max-height: 56px;
  width: auto;
  display: block;
  filter: drop-shadow(0 3px 12px rgba(255, 224, 0, 0.3));
}

.main-navigation {
  display: flex;
  align-items: center;
}

.main-navigation ul,
.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.main-navigation li,
.nav-menu li {
  list-style: none;
  display: inline-block;
  margin: 0;
  padding: 0;
}

.main-navigation a,
.nav-menu li a,
.nav-menu a,
.nav-link {
  color: #F8F5EE !important;
  font-size: 0.95rem;
  font-weight: 600;
  position: relative;
  padding: 0.4rem 0.5rem;
  display: inline-block;
  text-decoration: none;
  letter-spacing: 0.01em;
  opacity: 0.9;
  transition: var(--transition-smooth);
}

.main-navigation a:hover,
.nav-menu li a:hover,
.nav-menu a:hover,
.nav-link:hover,
.nav-menu li.current-menu-item a,
.nav-menu li.current_page_item a {
  color: var(--color-yellow) !important;
  opacity: 1;
}

.main-navigation a::after,
.nav-menu li a::after,
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0.5rem;
  right: 0.5rem;
  height: 2px;
  background: var(--color-yellow);
  transition: var(--transition-smooth);
  transform: scaleX(0);
  border-radius: 2px;
}

.main-navigation a:hover::after,
.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ==========================================================================
   3. HERO BÖLÜMÜ (Modern Aurora Glow & 3D Kitap)
   ========================================================================== */
.hero-section {
  background: radial-gradient(circle at 80% 20%, rgba(168, 36, 50, 0.22) 0%, transparent 45%),
              radial-gradient(circle at 10% 80%, rgba(184, 201, 74, 0.16) 0%, transparent 45%),
              linear-gradient(140deg, #0d111a 0%, #1c1524 60%, #121620 100%);
  color: #FFFFFF;
  padding: clamp(4rem, 7vw, 6.5rem) 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-dark);
}

.hero-ambient-glow {
  position: absolute;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.45;
  z-index: 1;
}

.hero-glow-red {
  top: -100px;
  right: 15%;
  background: radial-gradient(circle, #A82432 0%, transparent 70%);
}

.hero-glow-green {
  bottom: -100px;
  left: 5%;
  background: radial-gradient(circle, #B8C94A 0%, transparent 70%);
}

.hero-glow-yellow {
  top: 40%;
  left: 35%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 224, 0, 0.25) 0%, transparent 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
  position: relative;
  z-index: 2;
}

/* 3D Kitap Sunumu & Floating Sticker */
.book-3d-wrapper {
  perspective: 1400px;
  display: flex;
  justify-content: center;
  position: relative;
  padding: 2rem;
}

.book-3d {
  position: relative;
  width: clamp(250px, 32vw, 370px);
  aspect-ratio: 1 / 1.5;
  transform: rotateY(-16deg) rotateX(4deg);
  transform-style: preserve-3d;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
  border-radius: 6px;
  box-shadow: var(--shadow-book);
}

.book-3d:hover {
  transform: rotateY(-8deg) rotateX(2deg) translateY(-8px);
  box-shadow: -16px 26px 55px rgba(0, 0, 0, 0.75), -6px 8px 20px rgba(0, 0, 0, 0.4);
}

.book-3d img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px 8px 8px 4px;
  display: block;
}

.book-3d::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 100%;
  background: linear-gradient(90deg, rgba(255,255,255,0.3) 0%, rgba(0,0,0,0.1) 35%, rgba(0,0,0,0.7) 100%);
  border-radius: 4px 0 0 4px;
  pointer-events: none;
}

/* Yüzen Rozet (Floating Badge) */
.floating-book-badge {
  position: absolute;
  top: -15px;
  right: -15px;
  z-index: 10;
  background: rgba(15, 19, 28, 0.9);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--color-yellow);
  color: var(--color-yellow);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), 0 0 15px rgba(255, 224, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #25D366;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #25D366;
  animation: pulseGlow 1.8s infinite;
}

@keyframes pulseGlow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
  70% { transform: scale(1.15); box-shadow: 0 0 0 8px rgba(37, 211, 102, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 224, 0, 0.3);
  border-radius: var(--radius-pill);
  color: var(--color-yellow);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  width: fit-content;
  margin-bottom: 1.25rem;
  backdrop-filter: blur(6px);
}

.pill-sparkle {
  color: var(--color-yellow);
  font-size: 0.95rem;
}

.hero-title {
  font-size: clamp(2.75rem, 5vw, 4.5rem);
  color: #FFFFFF;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.hero-statement {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  color: var(--color-yellow);
  font-style: italic;
  margin-bottom: 1.25rem;
  padding-left: 1.25rem;
  border-left: 4px solid var(--color-pear);
}

.hero-desc {
  font-size: 1.1875rem;
  color: rgba(248, 245, 238, 0.85);
  margin-bottom: 2rem;
  line-height: 1.75;
  max-width: 580px;
}

/* Modern Lansman Fiyat Kutusu */
.hero-price-box {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  width: fit-content;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.price-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(248, 245, 238, 0.65);
  margin-bottom: 0.2rem;
}

.hero-price {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-yellow);
}

.price-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
}

.hero-stock-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-pear-bright);
  font-weight: 700;
}

.stock-indicator {
  width: 10px;
  height: 10px;
  background: var(--color-pear);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-pear);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.trust-badges {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: rgba(248, 245, 238, 0.8);
  flex-wrap: wrap;
}

.trust-badges span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   4. DUYGUSAL GİRİŞ (Emotional Editorial)
   ========================================================================== */
.section-editorial {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
  background-color: var(--color-cream);
  color: var(--color-text-dark);
  position: relative;
}

.editorial-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.editorial-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  line-height: 1.4;
  color: var(--color-midnight);
  position: relative;
  padding-left: 1.75rem;
  border-left: 5px solid var(--color-apple);
  font-style: italic;
}

.editorial-body {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
}

/* ==========================================================================
   5. KİTAP KİME HİTAP EDİYOR (Colorful Audience Cards)
   ========================================================================== */
.section-audience {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background: #FFFFFF;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.audience-card {
  background: var(--color-cream);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  box-shadow: var(--shadow-subtle);
  position: relative;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.audience-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
}

.audience-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.audience-icon svg {
  width: 26px;
  height: 26px;
}

.card-badge {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
}

.audience-card h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-midnight);
  line-height: 1.45;
}

/* 4 Farklı Renk Varyasyonu */
/* 1. Yakut Kırmızı (Ruby) */
.card-ruby .icon-ruby {
  background: rgba(168, 36, 50, 0.12);
  color: var(--color-apple);
}
.card-ruby .badge-ruby {
  background: rgba(168, 36, 50, 0.12);
  color: var(--color-apple);
}
.card-ruby:hover {
  transform: translateY(-8px);
  border-color: var(--color-apple);
  box-shadow: var(--shadow-glow-red), var(--shadow-hover);
  background: #FFFFFF;
}
.card-ruby:hover .icon-ruby {
  background: var(--color-apple);
  color: #FFFFFF;
}

/* 2. Zümrüt Armut (Emerald) */
.card-emerald .icon-emerald {
  background: rgba(184, 201, 74, 0.18);
  color: #5d6f1a;
}
.card-emerald .badge-emerald {
  background: rgba(184, 201, 74, 0.18);
  color: #5d6f1a;
}
.card-emerald:hover {
  transform: translateY(-8px);
  border-color: var(--color-pear);
  box-shadow: var(--shadow-glow-green), var(--shadow-hover);
  background: #FFFFFF;
}
.card-emerald:hover .icon-emerald {
  background: var(--color-pear);
  color: #0f131c;
}

/* 3. Güneş Sarısı (Amber) */
.card-amber .icon-amber {
  background: rgba(255, 224, 0, 0.25);
  color: #8c7300;
}
.card-amber .badge-amber {
  background: rgba(255, 224, 0, 0.25);
  color: #8c7300;
}
.card-amber:hover {
  transform: translateY(-8px);
  border-color: #FFC400;
  box-shadow: var(--shadow-glow-yellow), var(--shadow-hover);
  background: #FFFFFF;
}
.card-amber:hover .icon-amber {
  background: #FFE000;
  color: #0f131c;
}

/* 4. Mürdüm Moru (Violet) */
.card-violet .icon-violet {
  background: rgba(132, 50, 168, 0.12);
  color: var(--color-violet);
}
.card-violet .badge-violet {
  background: rgba(132, 50, 168, 0.12);
  color: var(--color-violet);
}
.card-violet:hover {
  transform: translateY(-8px);
  border-color: var(--color-violet);
  box-shadow: 0 0 35px rgba(132, 50, 168, 0.35), var(--shadow-hover);
  background: #FFFFFF;
}
.card-violet:hover .icon-violet {
  background: var(--color-violet);
  color: #FFFFFF;
}

/* ==========================================================================
   6. ARKA KAPAKTAN (Back Cover & Ambient Light)
   ========================================================================== */
.section-back-cover {
  padding: clamp(5rem, 8vw, 8rem) 0;
  background: radial-gradient(circle at 20% 50%, rgba(184, 201, 74, 0.14) 0%, transparent 40%),
              radial-gradient(circle at 80% 80%, rgba(168, 36, 50, 0.2) 0%, transparent 45%),
              linear-gradient(150deg, #121622 0%, #281726 100%);
  color: #FFFFFF;
  border-bottom: 1px solid var(--color-border-dark);
  position: relative;
}

.back-cover-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.back-cover-image {
  max-width: 400px;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  box-shadow: -15px 20px 45px rgba(0, 0, 0, 0.65);
  transition: var(--transition-smooth);
}

.back-cover-image:hover {
  transform: scale(1.03) rotate(-1deg);
}

.back-cover-text blockquote {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  line-height: 1.7;
  color: #F8F5EE;
  margin-bottom: 2.5rem;
  border-left: 4px solid var(--color-yellow);
  padding-left: 1.75rem;
}

.back-cover-text blockquote p {
  margin-bottom: 1.5rem;
}

.back-cover-text .highlight {
  color: var(--color-yellow);
  font-weight: 700;
}

/* ==========================================================================
   7. KİTAPTAN KISA PARÇALAR (Quotes Section)
   ========================================================================== */
.section-quotes {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background-color: var(--color-cream);
}

.quotes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.quote-card {
  background: #ffffff;
  padding: 2.75rem 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition-smooth);
  overflow: hidden;
}

.quote-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-apple) 0%, var(--color-pear) 50%, var(--color-yellow) 100%);
  opacity: 0.8;
}

.quote-card:hover {
  border-color: var(--color-pear);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.quote-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.quote-num {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--color-apple);
  background: rgba(168, 36, 50, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
}

.quote-chapter {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.quote-body {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.75;
  color: var(--color-midnight);
  font-style: italic;
  margin-bottom: 2rem;
}

.quote-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border-light);
  padding-top: 1.25rem;
}

.btn-copy-quote, .btn-share-quote {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition-fast);
}

.btn-copy-quote:hover, .btn-share-quote:hover {
  color: var(--color-apple);
  transform: translateY(-1px);
}

/* ==========================================================================
   8. KİTAP BİLGİLERİ (Specs Table)
   ========================================================================== */
.section-specs {
  padding: clamp(4.5rem, 8vw, 6.5rem) 0;
  background-color: #FFFFFF;
  border-top: 1px solid var(--color-border-light);
}

.specs-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color 0.2s ease;
}

.specs-table tr:hover {
  background-color: var(--color-cream);
}

.specs-table tr:last-child {
  border-bottom: none;
}

.specs-table th, .specs-table td {
  padding: 1.25rem 2rem;
  text-align: left;
}

.specs-table th {
  width: 35%;
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-text-muted);
  background: rgba(15, 19, 28, 0.02);
}

.specs-table td {
  font-weight: 600;
  color: var(--color-midnight);
}

/* ==========================================================================
   9. SATIŞ KUTUSU (High-Conversion Sales Box)
   ========================================================================== */
.section-sales-box {
  padding: clamp(5rem, 9vw, 8rem) 0;
  background: radial-gradient(circle at 10% 20%, rgba(255, 224, 0, 0.15) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(168, 36, 50, 0.25) 0%, transparent 45%),
              linear-gradient(135deg, #1e1322 0%, #111520 100%);
  color: #FFFFFF;
}

.sales-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px solid rgba(255, 224, 0, 0.3);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), 0 0 40px rgba(255, 224, 0, 0.15);
  backdrop-filter: blur(16px);
}

.sales-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.sales-image {
  max-width: 340px;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  box-shadow: -15px 20px 45px rgba(0, 0, 0, 0.6);
  transition: transform 0.35s ease;
}

.sales-image:hover {
  transform: scale(1.03) translateY(-4px);
}

.sales-edition-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 224, 0, 0.15);
  border: 1px solid var(--color-yellow);
  color: var(--color-yellow);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.badge-fire {
  color: #FFA000;
}

.badge-dot {
  color: rgba(255, 255, 255, 0.4);
}

.sales-details h2 {
  font-size: clamp(2rem, 3.8vw, 3rem);
  color: #FFFFFF;
  margin-bottom: 0.4rem;
}

.sales-author {
  font-size: 1.1875rem;
  color: rgba(248, 245, 238, 0.8);
  margin-bottom: 1rem;
}

.sales-rating-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.75rem;
  font-size: 0.9375rem;
}

.stars-glow {
  color: var(--color-yellow);
  letter-spacing: 2px;
  text-shadow: 0 0 10px rgba(255, 224, 0, 0.6);
}

.rating-number {
  font-weight: 800;
  color: #FFFFFF;
}

.rating-sub {
  color: rgba(248, 245, 238, 0.65);
}

.sales-price-wrap {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.sales-current-price {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--color-yellow);
}

.sales-badge-free-shipping {
  background: rgba(184, 201, 74, 0.18);
  border: 1px solid var(--color-pear);
  color: var(--color-pear-bright);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
}

.signed-copy-option {
  margin-bottom: 2rem;
  padding: 1.25rem;
  background: rgba(255, 224, 0, 0.08);
  border: 1.5px dashed var(--color-yellow);
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.signed-copy-option:hover {
  background: rgba(255, 224, 0, 0.14);
}

.signed-copy-option label {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  cursor: pointer;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1.0625rem;
}

.signed-copy-option input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-yellow);
}

.signed-desc {
  font-size: 0.875rem;
  color: rgba(248, 245, 238, 0.75);
  margin-top: 0.4rem;
  margin-left: 32px;
  font-weight: 400;
}

.sales-action-row {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.qty-input-wrap {
  display: flex;
  align-items: center;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.qty-btn {
  background: transparent;
  border: none;
  color: #FFFFFF;
  font-size: 1.4rem;
  width: 46px;
  height: 52px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.qty-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.qty-field {
  width: 50px;
  text-align: center;
  background: transparent;
  border: none;
  color: #FFFFFF;
  font-weight: 800;
  font-size: 1.25rem;
}

/* ==========================================================================
   10. OKUR YORUMLARI (Colorful Testimonials)
   ========================================================================== */
.section-testimonials {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background-color: #FFFFFF;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--color-cream);
  padding: 2.75rem 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: rgba(184, 201, 74, 0.5);
  background: #FFFFFF;
}

.testimonial-stars {
  color: #FFA000;
  margin-bottom: 1.25rem;
  font-size: 1.25rem;
  letter-spacing: 3px;
  text-shadow: 0 0 8px rgba(255, 160, 0, 0.4);
}

.testimonial-text {
  font-family: var(--font-serif);
  font-size: 1.1875rem;
  line-height: 1.75;
  color: var(--color-midnight);
  margin-bottom: 2rem;
  font-style: italic;
}

.testimonial-author-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border-light);
  padding-top: 1.25rem;
}

.testimonial-name {
  font-weight: 800;
  color: var(--color-midnight);
  font-size: 1.0625rem;
}

.testimonial-meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.sample-badge {
  display: inline-block;
  font-size: 0.75rem;
  background: rgba(30, 29, 36, 0.08);
  color: var(--color-text-muted);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
}

/* ==========================================================================
   11. YAZAR BÖLÜMÜ (Author Showcase)
   ========================================================================== */
.section-author {
  padding: clamp(5rem, 8vw, 7.5rem) 0;
  background-color: var(--color-cream);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.author-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.author-portrait-wrap {
  max-width: 440px;
  margin: 0 auto;
  position: relative;
}

.author-portrait-wrap img {
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(15, 19, 28, 0.2);
  transition: var(--transition-smooth);
}

.author-portrait-wrap:hover img {
  transform: scale(1.02);
}

.author-bio {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 2.25rem;
}

.author-socials {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.author-social-link {
  color: var(--color-midnight);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.5rem 1.25rem;
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
}

.author-social-link:hover {
  background: var(--color-apple);
  color: #FFFFFF;
  border-color: var(--color-apple);
  transform: translateY(-2px);
}

/* ==========================================================================
   12. SSS (FAQ Accordion)
   ========================================================================== */
.section-faq {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background-color: #FFFFFF;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-item {
  background: var(--color-cream);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: var(--color-pear);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.5rem 2rem;
  background: transparent;
  border: none;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-midnight);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-icon {
  width: 32px;
  height: 32px;
  background: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-subtle);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  background: var(--color-yellow);
  color: var(--color-midnight);
}

.faq-answer {
  display: none;
  padding: 0 2rem 1.75rem 2rem;
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ==========================================================================
   13. BLOG BÖLÜMÜ (Latest Posts)
   ========================================================================== */
.section-blog {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
  background-color: var(--color-cream);
  border-top: 1px solid var(--color-border-light);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.25rem;
  margin-bottom: 3rem;
}

.blog-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-pear);
}

.blog-card-thumb {
  aspect-ratio: 16 / 9;
  background-color: var(--color-midnight);
  overflow: hidden;
}

.blog-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.blog-card:hover .blog-card-thumb img {
  transform: scale(1.05);
}

.blog-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0.85rem;
  display: flex;
  gap: 0.75rem;
  font-weight: 600;
}

.blog-card-title {
  font-size: 1.35rem;
  color: var(--color-midnight);
  margin-bottom: 0.85rem;
  line-height: 1.4;
}

.blog-card-excerpt {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
  flex: 1;
  line-height: 1.7;
}

.blog-card-link {
  font-weight: 800;
  color: var(--color-apple);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   14. ALT SATIŞ ÇAĞRISI (Bottom CTA)
   ========================================================================== */
.section-bottom-cta {
  padding: clamp(5.5rem, 9vw, 8.5rem) 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 224, 0, 0.18) 0%, transparent 50%),
              linear-gradient(135deg, #0f131c 0%, #281726 100%);
  color: #FFFFFF;
  text-align: center;
  border-top: 1px solid var(--color-border-dark);
}

.bottom-cta-title {
  font-size: clamp(2.25rem, 4.2vw, 3.5rem);
  color: #FFFFFF;
  margin-bottom: 1.75rem;
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.25;
}

.bottom-cta-title span {
  color: var(--color-yellow);
}

/* ==========================================================================
   15. FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-midnight);
  color: #FFFFFF;
  border-top: 1px solid var(--color-border-dark);
  padding: 4.5rem 0 2.5rem 0;
  font-size: 0.9375rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-yellow);
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(248, 245, 238, 0.75);
}

.footer-links a:hover {
  color: var(--color-yellow);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
  color: rgba(248, 245, 238, 0.6);
}

/* Mobilde Sabit Alt Satın Alma Çubuğu */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(15, 19, 28, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0.85rem 1.5rem;
  border-top: 1px solid rgba(255, 224, 0, 0.25);
  z-index: 999;
  box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.4);
  align-items: center;
  justify-content: space-between;
}

.sticky-bar-price {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-yellow);
}

/* WhatsApp Kayan Butonu */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 990;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #fff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.65);
}

.floating-whatsapp svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

/* ==========================================================================
   Responsive Medya Sorguları
   ========================================================================== */
@media (max-width: 991px) {
  .hero-grid, .editorial-grid, .back-cover-grid, .sales-grid, .author-grid, .footer-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .main-navigation {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-midnight);
    border-bottom: 1px solid var(--color-border-dark);
    padding: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .main-navigation.is-open {
    display: flex;
  }

  .nav-menu {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 1rem;
  }

  .menu-toggle {
    display: block;
  }

  .mobile-sticky-bar {
    display: flex;
  }

  body {
    padding-bottom: 60px;
  }

  .floating-whatsapp {
    bottom: 5.5rem;
  }
}

/* Hareket Azaltma Tercihi (prefers-reduced-motion) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .book-3d {
    transform: none !important;
  }
}