/* ==========================================================================
   Istanbul Curated Sequential Route - Modern Design System
   ========================================================================== */

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(18, 26, 43, 0.75);
  --bg-card-hover: rgba(26, 38, 64, 0.9);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 180, 216, 0.3);
  
  --primary: #00b4d8;
  --primary-glow: rgba(0, 180, 216, 0.4);
  --secondary: #f77f00;
  --accent-red: #e63946;
  --accent-gold: #ffd166;
  --accent-green: #06d6a0;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;

  --font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(0, 180, 216, 0.25);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(0, 180, 216, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(247, 127, 0, 0.06) 0%, transparent 40%);
  background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: #ffffff;
}

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

a:hover {
  color: #38bdf8;
}

/* Header & Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.85);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glow);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* Language Toggle Switch */
.lang-switch {
  display: flex;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  padding: 4px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: linear-gradient(135deg, var(--primary), #0284c7);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 180, 216, 0.4);
}

.tip-modal-trigger {
  background: rgba(247, 127, 0, 0.15);
  border: 1px solid rgba(247, 127, 0, 0.4);
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.tip-modal-trigger:hover {
  background: var(--secondary);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(247, 127, 0, 0.4);
}

/* Hero Section */
.hero {
  padding: 3.5rem 2rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 180, 216, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 40%, #a5f3fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 2.5rem;
}

/* Stats Counter Grid */
.hero-stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.25rem 2rem;
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  min-width: 170px;
  text-align: center;
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Map Section ("Kroki") */
.map-section {
  max-width: 1280px;
  margin: 0 auto 3.5rem;
  padding: 0 2rem;
}

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

.section-title {
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.map-container {
  height: 480px;
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  overflow: hidden;
  position: relative;
  z-index: 10;
}

#leaflet-map {
  height: 100%;
  width: 100%;
  background: #0f172a;
}

/* Custom Leaflet Map Controls */
.leaflet-popup-content-wrapper {
  background: #0f172a !important;
  color: #fff !important;
  border: 1px solid var(--primary);
  border-radius: var(--radius-md) !important;
}
.leaflet-popup-tip {
  background: #0f172a !important;
}

/* Day Selector & Filters Bar */
.filter-section {
  max-width: 1280px;
  margin: 0 auto 2.5rem;
  padding: 0 2rem;
}

.day-selector-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.day-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-sub);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.day-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.day-btn.active {
  background: linear-gradient(135deg, var(--secondary), #d97706);
  color: #ffffff;
  border-color: rgba(247, 127, 0, 0.5);
  box-shadow: 0 4px 14px rgba(247, 127, 0, 0.3);
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}

.filter-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), #0284c7);
  color: #ffffff;
  border-color: rgba(0, 180, 216, 0.5);
  box-shadow: 0 4px 14px rgba(0, 180, 216, 0.3);
}

.search-box {
  position: relative;
  min-width: 240px;
}

.search-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  padding: 10px 16px 10px 40px;
  border-radius: var(--radius-pill);
  color: #fff;
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* Sequential Route Stepper & Cards */
.route-section {
  max-width: 1000px;
  margin: 0 auto 5rem;
  padding: 0 1.5rem;
}

.timeline-container {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Individual Location Card */
.route-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: grid;
  grid-template-columns: 320px 1fr;
  backdrop-filter: blur(12px);
  position: relative;
}

.route-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 180, 216, 0.15);
}

.card-media {
  position: relative;
  height: 100%;
  min-height: 240px;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.route-card:hover .card-media img {
  transform: scale(1.08);
}

.card-step-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(9, 13, 22, 0.85);
  border: 1px solid var(--primary);
  color: var(--primary);
  font-weight: 900;
  font-size: 1.1rem;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.card-day-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, var(--secondary), #d97706);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  text-transform: uppercase;
}

.card-region-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  background: rgba(9, 13, 22, 0.8);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(6px);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-header-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.category-tag.historic {
  background: rgba(247, 127, 0, 0.15);
  color: var(--secondary);
  border: 1px solid rgba(247, 127, 0, 0.3);
}

.category-tag.food {
  background: rgba(6, 214, 160, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(6, 214, 160, 0.3);
}

.category-tag.nightlife {
  background: rgba(230, 57, 70, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(230, 57, 70, 0.3);
}

.card-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: #ffffff;
}

/* Personal Tip / Note Box */
.tip-box {
  background: rgba(255, 209, 102, 0.08);
  border-left: 4px solid var(--accent-gold);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 1.25rem;
}

.tip-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.tip-text {
  font-size: 0.95rem;
  color: var(--text-sub);
}

/* Action Footer */
.card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-maps {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
  transition: var(--transition);
}

.btn-maps:hover {
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-focus-map {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.btn-focus-map:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Inter-step Transit Card */
.transit-step {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: rgba(0, 180, 216, 0.05);
  border: 1px stroke var(--border-glow);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  margin: 0.5rem 0 0.5rem 2rem;
  backdrop-filter: blur(8px);
}

.transit-step.ferry {
  background: rgba(247, 127, 0, 0.08);
  border-left-color: var(--secondary);
}

.transit-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 180, 216, 0.2);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.transit-step.ferry .transit-icon {
  background: rgba(247, 127, 0, 0.2);
  color: var(--secondary);
}

.transit-info {
  flex-grow: 1;
}

.transit-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}

.transit-type {
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--primary);
}

.transit-step.ferry .transit-type {
  color: var(--secondary);
}

.transit-time {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-sub);
}

.transit-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Modal Drawer for Tips */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #0f172a;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--accent-red);
}

.modal-body-section {
  margin-bottom: 1.5rem;
}

.modal-body-section h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-body-section p {
  color: var(--text-sub);
  font-size: 0.95rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border-color);
  background: rgba(9, 13, 22, 0.9);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsive Breakpoints */
@media (max-width: 868px) {
  .route-card {
    grid-template-columns: 1fr;
  }
  .card-media {
    height: 220px;
  }
  .transit-step {
    margin-left: 0;
  }
  .navbar {
    padding: 0.85rem 1rem;
  }
  .hero {
    padding: 2rem 1rem;
  }
}