/* ============================================
   DIJITAL SAĞLIK - PROFESSIONAL DESIGN SYSTEM
   ============================================ */

/* ===== CSS VARIABLES ===== */
:root {
  /* Primary Brand Colors - Professional Green */
  --primary-50: #f0fdf4;
  --primary-100: #dcfce7;
  --primary-200: #bbf7d0;
  --primary-300: #86efac;
  --primary-400: #4ade80;
  --primary-500: #22c55e;
  --primary-600: #16a34a;
  --primary-700: #15803d;
  --primary-800: #166534;
  --primary-900: #14532d;
  
  /* Main Primary */
  --primary: #10b981;
  --primary-dark: #059669;
  --primary-light: #d1fae5;
  
  /* Success/Accent Colors - Emerald Green */
  --success-50: #ecfdf5;
  --success-100: #d1fae5;
  --success-200: #a7f3d0;
  --success-300: #6ee7b7;
  --success-400: #34d399;
  --success-500: #10b981;
  --success-600: #059669;
  --success-700: #047857;
  --success-800: #065f46;
  --success-900: #064e3b;
  
  /* Main Success */
  --success: #10b981;
  --success-dark: #059669;
  --success-light: #d1fae5;
  
  /* Neutral Gray Scale */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Semantic Colors */
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --bg-white: #ffffff;
  --bg-light: #f9fafb;
  --bg-lighter: #f3f4f6;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  
  /* Hero Gradient Colors */
  --hero-dark-1: #0f172a;
  --hero-dark-2: #1e293b;
  --hero-dark-3: #334155;
  
  /* Shadows - Consistent System */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
  
  /* Spacing System (8px base) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 80px;
  --space-9: 96px;
  --space-10: 128px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

html {
  scroll-behavior: smooth;
}

/* ===== TYPOGRAPHY SYSTEM ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

/* Hero Title */
.hero-title {
  font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: white;
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 400;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
}

/* Section Titles */
.section-title {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.section-title-alt {
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

.section-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 720px;
}

.section-description-alt {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Section Badge */
.section-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  background: var(--success-light);
  color: var(--success-dark);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-full);
}

/* ===== HERO SECTION ===== */
.hero {
  background: linear-gradient(135deg, var(--hero-dark-1) 0%, var(--hero-dark-2) 50%, var(--hero-dark-1) 100%);
  position: relative;
  overflow: hidden;
  padding: var(--space-4) 0 var(--space-9);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
}

/* Navigation */
.navbar {
  padding: var(--space-2) 0 var(--space-4);
}

/* Brand Icon, Title & Author */
.brand-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(16, 185, 129, 0.3);
  flex-shrink: 0;
}

.brand-icon i {
  font-size: 1.75rem;
  color: var(--success);
}

.brand-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: white;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.brand-author {
  font-family: 'WindSong', cursive;
  font-size: 1.05rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1;
  margin-top: -2px;
}

.tracking-wide {
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  font-weight: 500;
}

.text-muted-300 {
  color: rgba(255, 255, 255, 0.6);
}

/* Trust Badges */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-4);
  margin-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  font-weight: 500;
}

.trust-badge i {
  color: var(--success);
  font-size: 1.125rem;
}

/* ===== INFO CARD (Hero Right Side) ===== */
.info-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  color: white;
}

.info-card-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.info-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-4);
  display: grid;
  gap: var(--space-3);
  max-height: 480px;
  overflow-y: auto;
  padding-right: var(--space-1);
}

.info-list::-webkit-scrollbar {
  width: 4px;
}

.info-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
}

.info-list::-webkit-scrollbar-thumb {
  background: rgba(16, 185, 129, 0.3);
  border-radius: 2px;
}

.info-item {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}

.info-number {
  min-width: 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.info-content {
  flex: 1;
}

.info-content strong {
  display: block;
  color: white;
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: var(--space-1);
  line-height: 1.4;
}

.info-content p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0;
}

/* ===== BUTTONS ===== */
.btn {
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition);
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  padding: var(--space-2) var(--space-4);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-success {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.btn-success:hover {
  background: var(--success-dark);
  border-color: var(--success-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.3);
  color: white;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
}

.btn-outline-dark {
  border-color: var(--gray-800);
  color: var(--gray-800);
  background: transparent;
}

.btn-outline-dark:hover {
  background: var(--gray-800);
  border-color: var(--gray-800);
  color: white;
}

.btn-outline-success {
  border-color: var(--success);
  color: var(--success);
  background: transparent;
}

.btn-outline-success:hover {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.btn-light {
  background: white;
  border-color: white;
  color: var(--gray-800);
}

.btn-light:hover {
  background: var(--gray-100);
  border-color: var(--gray-100);
  color: var(--gray-800);
  transform: translateY(-2px);
}

.btn-lg {
  padding: var(--space-2) var(--space-4);
  font-size: 1rem;
}

/* ===== FEATURE CARDS ===== */
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.feature-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.feature-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

/* ===== CONTENT CARDS ===== */
.content-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  height: 100%;
}

.content-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: var(--space-3);
  display: block;
}

.content-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.content-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.content-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.content-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.content-list i {
  color: var(--success);
  font-size: 1.125rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Market Cards */
.market-card {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.market-card strong {
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: var(--space-1);
}

.market-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ===== TARGET CARDS ===== */
.target-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: var(--transition);
  height: 100%;
}

.target-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.target-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: var(--space-2);
  display: block;
}

.target-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.target-card p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* ===== RESULT CARDS ===== */
.result-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  transition: var(--transition);
  height: 100%;
}

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

.result-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: var(--space-3);
  display: block;
}

.result-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.result-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

/* ===== PRICING CARDS ===== */
.pricing-card {
  background: var(--bg-white);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.pricing-card h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.pricing-card p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.pricing-card .display-6 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-4);
  display: grid;
  gap: var(--space-2);
  flex: 1;
}

.pricing-card ul li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.pricing-card ul li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.pricing-card.premium {
  background: linear-gradient(135deg, var(--hero-dark-1) 0%, var(--hero-dark-2) 100%);
  border-color: var(--success);
}

.pricing-card.premium h3,
.pricing-card.premium p,
.pricing-card.premium ul li {
  color: white;
}

.pricing-card.premium ul li strong {
  color: white;
  font-weight: 700;
}

.pricing-card.premium .btn-success {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.pricing-card.premium .btn-success:hover {
  background: var(--success-dark);
  border-color: var(--success-dark);
  color: white;
}

.pricing-card.premium .display-6 {
  color: var(--success);
}

/* Package Divider */
.package-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-3) 0;
}

.pricing-card.premium .package-divider {
  background: rgba(255, 255, 255, 0.2);
}

/* Package Subtitle */
.package-subtitle {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.pricing-card.premium .package-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.dot-success {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
  flex-shrink: 0;
  margin-top: 6px;
}

/* ===== REFERENCE TILES ===== */
.reference-tile {
  height: 100px;
  border-radius: var(--radius-md);
  background: var(--bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  transition: var(--transition);
  line-height: 1.3;
}

.reference-tile:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ===== CONTACT CARD ===== */
.contact-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}

/* Form Controls */
.form-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.form-control-lg {
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border);
  background: var(--bg-white);
  transition: var(--transition);
  font-size: 1rem;
}

.form-control-lg:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
  outline: none;
}

/* WhatsApp floating button removed - JivoChat added */

/* ===== SECTION SPACING ===== */
section {
  scroll-margin-top: 80px;
}

.py-5 {
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

.py-lg-6 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.bg-light {
  background: var(--bg-light);
}

.bg-gradient-subtle {
  background: linear-gradient(180deg, rgba(249, 250, 251, 0.5) 0%, rgba(255, 255, 255, 1) 100%);
}

/* ===== FOOTER ===== */
footer {
  background: var(--gray-900);
  color: white;
  padding: var(--space-5) 0;
}

.footer-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  flex-shrink: 0;
}

.footer-icon i {
  font-size: 1.5rem;
  color: var(--success);
}

.footer-brand {
  flex: 1;
}

.footer-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: white;
  line-height: 1.3;
  margin-bottom: var(--space-2);
}

.footer-author {
  font-family: 'WindSong', cursive;
  font-size: 1.225rem;
  font-weight: 500;
  color: var(--success);
  line-height: 1;
}

footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9375rem;
}

footer a:hover {
  color: white;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 991px) {
  .hero {
    padding-bottom: var(--space-7);
  }
  
  .info-card {
    padding: var(--space-4);
  }
  
  .py-lg-6 {
    padding-top: var(--space-7);
    padding-bottom: var(--space-7);
  }
}

@media (max-width: 768px) {
  :root {
    --space-5: 32px;
    --space-6: 40px;
    --space-7: 48px;
    --space-8: 64px;
  }
  
  .hero {
    padding-bottom: var(--space-6);
  }
  
  .info-card,
  .pricing-card,
  .contact-card {
    padding: var(--space-4);
  }
  
  .feature-card,
  .content-card,
  .result-card {
    padding: var(--space-4);
  }
  
  .trust-badges {
    gap: var(--space-2);
  }
  
  .pricing-card .display-6 {
    font-size: 2rem;
  }
  
  .pricing-card h3 {
    font-size: 1.5rem;
  }
  
  .brand-icon {
    width: 48px;
    height: 48px;
  }
  
  .brand-icon i {
    font-size: 1.5rem;
  }
  
  .brand-title {
    font-size: 1rem;
  }
  
  .brand-author {
    font-size: 0.875rem;
  }
  
  .footer-title {
    font-size: 1.125rem;
  }
  
  .footer-author {
    font-size: 1.05rem;
  }
  
  .book-mockup-placeholder {
    min-height: 300px;
    padding: var(--space-5) var(--space-3);
  }
  
  .book-mockup-placeholder i {
    font-size: 3rem;
  }
  
  .book-mockup {
    position: relative;
    top: auto;
  }
}

/* ===== BOOK MOCKUP ===== */
.book-mockup {
  position: sticky;
  top: var(--space-4);
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  align-self: flex-start;
}

.book-cover-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  transition: var(--transition);
}

.book-cover-image:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

.book-mockup-placeholder {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  border: 2px dashed var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 400px;
  transition: var(--transition);
}

.book-mockup-placeholder:hover {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--gray-100) 100%);
}

.book-mockup-placeholder i {
  font-size: 4rem;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.book-mockup-placeholder p {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.book-mockup-placeholder span {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 200px;
}

/* ===== ACCORDION (KITAP İÇERİĞİ) ===== */
.accordion-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
}

.accordion-button {
  background: var(--bg-white);
  color: var(--text-primary);
  font-size: 1.0625rem;
  font-weight: 600;
  padding: var(--space-4);
  border: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
  box-shadow: none;
}

.accordion-button:hover {
  background: var(--gray-50);
}

.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
  border-color: var(--primary);
}

.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2310b981'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-left: auto;
}

.accordion-button:not(.collapsed)::after {
  transform: rotate(-180deg);
}

.accordion-button i {
  color: var(--primary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.accordion-body {
  padding: var(--space-4);
  background: var(--bg-white);
}

.chapter-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.chapter-list li {
  padding-left: var(--space-4);
  position: relative;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.9375rem;
}

.chapter-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* ===== ACCESSIBILITY ===== */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== UTILITIES ===== */
.text-white-50 {
  color: rgba(255, 255, 255, 0.7) !important;
}

.text-body-secondary {
  color: var(--text-secondary) !important;
}

.text-success {
  color: var(--success) !important;
}

.text-primary {
  color: var(--primary) !important;
}