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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px 0;
  color: #333;
}

/* HEADER */
.header {
  text-align: center;
  padding: 40px 20px 30px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  margin-bottom: 30px;
  border-radius: 0 0 20px 20px;
}

.header-content h1 {
  font-size: 3em;
  color: #667eea;
  margin-bottom: 10px;
  animation: slideDown 0.6s ease-out;
}

.header-content p {
  font-size: 1.2em;
  color: #666;
  margin-bottom: 15px;
  animation: slideDown 0.8s ease-out;
}

.trip-info {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.info-badge {
  display: inline-block;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 0.95em;
  animation: slideUp 1s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* TABS */
.tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 0 20px 20px;
  flex-wrap: wrap;
}

.tab {
  padding: 12px 24px;
  border: 2px solid transparent;
  background: white;
  margin: 5px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1em;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: #666;
}

.tab:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.tab.active {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  font-weight: bold;
  border-color: transparent;
}

/* CONTENT */
.content {
  display: none;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.content.active {
  display: block;
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* STATS */
.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: white;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

.stat-number {
  font-size: 2.5em;
  font-weight: bold;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}

.stat-label {
  font-size: 0.95em;
  color: #666;
  font-weight: 500;
}

/* TIMELINE */
.day {
  background: white;
  margin-bottom: 20px;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: all 0.3s ease;
}

.day:hover {
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
  transform: translateY(-3px);
}

.day-header {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.day-header:hover {
  background: linear-gradient(135deg, #764ba2, #667eea);
}

.day-header h2 {
  font-size: 1.5em;
  margin: 0;
  flex: 1;
}

.day-toggle {
  font-size: 1.2em;
  transition: transform 0.3s ease;
  user-select: none;
}

.day-header.collapsed .day-toggle {
  transform: rotate(-90deg);
}

.day-items {
  max-height: 10000px;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.day.collapsed .day-items {
  max-height: 0;
}

.item {
  display: flex;
  gap: 15px;
  padding: 12px 20px;
  border-bottom: 1px solid #eee;
  transition: all 0.3s ease;
  cursor: pointer;
  align-items: flex-start;
}

.item:last-child {
  border-bottom: none;
}

.item:hover {
  background: #f8f9ff;
  padding-left: 25px;
}

.item span:first-child {
  min-width: 140px;
  font-weight: 600;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.item span:nth-child(2) {
  color: #555;
  flex-grow: 1;
}

.item::before {
  content: '○';
  color: #667eea;
  font-weight: bold;
  margin-right: 8px;
  transition: all 0.3s ease;
}

.item.completed::before {
  content: '✓';
  color: #4caf50;
  font-weight: bold;
}

.item.completed span:nth-child(2) {
  text-decoration: line-through;
  color: #999;
}

/* GALLERY */
#gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 15px;
  padding: 20px 0;
}

#gallery img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

#gallery img:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* TIPS */
.tips-container {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.tips-header {
  text-align: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 3px solid rgba(102, 126, 234, 0.2);
}

.tips-header h2 {
  font-size: 1.8em;
  color: #667eea;
  margin-bottom: 8px;
}

.tips-header p {
  font-size: 1.1em;
  color: #666;
  font-weight: 500;
}

.tips-intro {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
  padding: 15px 20px;
  border-radius: 10px;
  border-left: 4px solid #667eea;
  margin-bottom: 30px;
  font-style: italic;
  color: #555;
}

.tips-link {
  display: inline-block;
  color: #667eea;
  text-decoration: none;
  font-weight: 600;
  padding: 8px 15px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 6px;
  transition: all 0.3s ease;
  border: 1px solid #667eea;
  font-style: normal;
}

.tips-link:hover {
  background: #667eea;
  color: white;
  transform: translateX(3px);
}

.tips-section {
  margin-bottom: 25px;
}

.tips-section h3 {
  font-size: 1.3em;
  color: #667eea;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(102, 126, 234, 0.2);
}

.tips-list {
  list-style: none;
  padding: 0;
}

.tips-list li {
  padding: 10px 0;
  padding-left: 30px;
  position: relative;
  color: #555;
  line-height: 1.6;
}

.tips-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #667eea;
  font-weight: bold;
  font-size: 1.2em;
}

.tips-day {
  background: rgba(102, 126, 234, 0.03);
  padding: 15px 20px;
  border-radius: 10px;
  margin-bottom: 15px;
  border-left: 4px solid #667eea;
}

.tips-day h4 {
  color: #667eea;
  margin: 0 0 12px 0;
  font-size: 1.1em;
}

.tips-day .tips-list {
  margin: 0;
}

.tips-day .tips-list li {
  padding: 8px 0;
  padding-left: 25px;
  font-size: 0.95em;
}

.tips-note {
  margin-top: 10px;
  padding-left: 25px;
  color: #764ba2;
  font-weight: 500;
  font-size: 0.95em;
}

.tips-note::before {
  content: '→ ';
  color: #764ba2;
  font-weight: bold;
}

.tips-conclusion {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
  padding: 20px;
  border-radius: 10px;
  border: 2px solid rgba(102, 126, 234, 0.2);
  text-align: center;
}

.tips-conclusion p {
  font-size: 1.05em;
  color: #555;
  margin: 0;
  line-height: 1.8;
}

/* LIGHTBOX */
.lightbox {
  display: none;
  position: fixed;
  z-index: 1000;
  padding-top: 50px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.9);
  animation: fadeIn 0.3s ease;
}

.lightbox.show {
  display: flex;
  justify-content: center;
  align-items: center;
}

#lightbox-img {
  max-width: 90%;
  max-height: 80vh;
  border-radius: 10px;
  animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 40px;
  font-weight: bold;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 1001;
}

.close:hover {
  color: #ccc;
  transform: scale(1.2);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .header-content h1 {
    font-size: 2em;
  }

  .day-header h2 {
    font-size: 1.2em;
  }

  .tabs {
    flex-direction: column;
    align-items: stretch;
  }

  .tab {
    width: 100%;
  }

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

  .item {
    flex-wrap: wrap;
  }

  .item span:first-child {
    min-width: 100%;
  }

  #gallery {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  #gallery img {
    height: 120px;
  }
}