:root {
  --primary-color: #0077cc;
  --primary-dark: #005fa3;
  --primary-light: #3399ee;
  --secondary-color: #ff9500;
  --secondary-dark: #e67e00;
  --secondary-light: #ffb74d;
  --dark-blue: #003366;
  --light-blue: #e6f7ff;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --white: #ffffff;
  --black: #000000;
  --font-primary: 'Montserrat', sans-serif;
  --font-secondary: 'Poppins', sans-serif;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --transition-speed: 0.3s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-100);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5em;
}

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

a:hover {
  color: var(--primary-dark);
}

ul {
  list-style: none;
}

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

button, .btn {
  cursor: pointer;
  font-family: var(--font-primary);
  font-weight: 500;
  border: none;
  border-radius: var(--border-radius-md);
  padding: 0.75rem 1.5rem;
  transition: all var(--transition-speed);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

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

.btn.primary:hover {
  background-color: var(--primary-dark);
}

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

.btn.secondary:hover {
  background-color: var(--secondary-dark);
}

.btn.outline {
  background-color: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

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

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
}

.logo i {
  font-size: 1.8rem;
}

.logo h1 {
  font-size: 1.8rem;
  margin-bottom: 0;
}

.tagline {
  color: var(--gray-600);
  font-size: 0.9rem;
  margin-left: 0.5rem;
}

nav ul {
  display: flex;
  gap: 1.5rem;
}

nav li {
  position: relative;
}

nav li.active::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  border-radius: 3px;
}

nav a {
  color: var(--gray-700);
  font-weight: 500;
}

nav a:hover {
  color: var(--primary-color);
}

main {
  flex: 1;
}

section {
  padding: 2rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 2rem;
  padding: 0 1rem;
}

.section-header h2 {
  font-size: 2.2rem;
  color: var(--dark-blue);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

footer {
  background-color: var(--dark-blue);
  color: var(--white);
  padding: 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.social-icon {
  color: var(--white);
  font-size: 1.2rem;
  transition: color var(--transition-speed);
}

.social-icon:hover {
  color: var(--secondary-color);
}

/* Hero Section */
#hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--dark-blue));
  color: var(--white);
  padding: 5rem 2rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-content h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.wave-animation {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100px;
  overflow: hidden;
}

.wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200%;
  height: 100px;
  background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1200 120" xmlns="http://www.w3.org/2000/svg"><path d="M0 0v46.29c47.79 22.2 103.59 32.17 158 28 70.36-5.37 136.33-33.31 206.8-37.5 73.84-4.36 147.54 16.88 218.2 35.26 69.27 18 138.3 24.88 209.4 13.08 36.15-6 69.85-17.84 104.45-29.34C989.49 25 1113-14.29 1200 52.47V0z" fill="%23ffffff" opacity=".25"/></svg>') repeat-x;
  animation: wave 25s cubic-bezier(0.36, 0.45, 0.63, 0.53) infinite;
  transform: translateZ(0);
}

.wave2 {
  bottom: 0;
  animation: wave 20s cubic-bezier(0.36, 0.45, 0.63, 0.53) -0.125s infinite, swell 7s ease -1.25s infinite;
  opacity: 0.5;
}

.wave3 {
  bottom: 0;
  animation: wave 15s cubic-bezier(0.36, 0.45, 0.63, 0.53) -0.25s infinite, swell 7s ease -2.5s infinite;
  opacity: 0.3;
}

@keyframes wave {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@keyframes swell {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* View Management */
.view {
  display: none;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.active-view {
  display: block;
}

/* Map View */
.map-container {
  display: flex;
  height: 600px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

#surf-map {
  flex: 1;
  height: 100%;
  z-index: 1;
}

.map-sidebar {
  width: 300px;
  background-color: var(--white);
  border-left: 1px solid var(--gray-300);
  display: flex;
  flex-direction: column;
}

.spot-list-header {
  padding: 1rem;
  border-bottom: 1px solid var(--gray-300);
}

.spot-list-header h3 {
  margin-bottom: 1rem;
}

.search-container {
  position: relative;
}

.search-container input {
  width: 100%;
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-primary);
}

.search-container i {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-500);
}

.spot-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.spot-item {
  padding: 0.75rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-speed);
  margin-bottom: 0.5rem;
}

.spot-item:hover {
  background-color: var(--gray-200);
}

.spot-item.active {
  background-color: var(--light-blue);
  border-left: 3px solid var(--primary-color);
}

.spot-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.spot-location {
  font-size: 0.85rem;
  color: var(--gray-600);
}

.spot-quality {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.quality-indicator {
  height: 8px;
  flex: 1;
  border-radius: 4px;
  background-color: var(--gray-300);
  overflow: hidden;
}

.quality-bar {
  height: 100%;
  background-color: var(--success-color);
}

.quality-text {
  font-size: 0.8rem;
  font-weight: 600;
}

/* Forecast View */
.forecast-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.select-styled {
  padding: 0.5rem 2rem 0.5rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-sm);
  background-color: var(--white);
  font-family: var(--font-primary);
  font-size: 1rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236c757d' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;
  cursor: pointer;
  min-width: 200px;
}

.view-toggle {
  display: flex;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.toggle-btn {
  padding: 0.5rem 1rem;
  background-color: var(--white);
  border: none;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.toggle-btn.active {
  background-color: var(--primary-color);
  color: var(--white);
}

.forecast-container {
  margin-top: 2rem;
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.forecast-display {
  display: none;
}

.forecast-display.active {
  display: block;
}

.chart-controls {
  margin-bottom: 1.5rem;
}

.metric-toggles {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.metric-btn {
  padding: 0.5rem 1rem;
  background-color: var(--gray-200);
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  transition: all var(--transition-speed);
}

.metric-btn.active {
  background-color: var(--primary-color);
  color: var(--white);
}

#forecast-chart {
  width: 100%;
  height: 400px;
}

#forecast-table {
  width: 100%;
  border-collapse: collapse;
}

#forecast-table th,
#forecast-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-300);
}

#forecast-table th {
  background-color: var(--gray-100);
  font-weight: 600;
}

#forecast-table tr:hover {
  background-color: var(--gray-100);
}

.quality-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.quality-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

/* Recommendations View */
.recommendation-filters {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-group label {
  font-size: 0.9rem;
  color: var(--gray-700);
  font-weight: 500;
}

.recommendations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.recommendation-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-speed);
}

.recommendation-card:hover {
  transform: translateY(-5px);
}

.recommendation-image {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.recommendation-date {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: rgba(0, 0, 0, 0.7);
  color: var(--white);
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
}

.recommendation-quality {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--success-color);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
}

.recommendation-content {
  padding: 1.5rem;
}

.recommendation-spot {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.recommendation-details {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.detail-item i {
  color: var(--primary-color);
}

/* About View */
.about-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.about-content h3 {
  margin-top: 1.5rem;
  color: var(--dark-blue);
}

.about-content ul {
  list-style: none;
  margin: 1rem 0;
}

.about-content li {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.about-content li i {
  color: var(--primary-color);
}

.about-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.tech-badge {
  background-color: var(--light-blue);
  color: var(--primary-dark);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.close-modal {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-600);
  transition: color var(--transition-speed);
}

.close-modal:hover {
  color: var(--gray-900);
}

.spot-detail {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.spot-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.spot-title h3 {
  font-size: 1.8rem;
  margin-bottom: 0.25rem;
}

.spot-location-detail {
  color: var(--gray-600);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.spot-actions {
  display: flex;
  gap: 0.75rem;
}

.spot-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.info-card {
  background-color: var(--gray-100);
  padding: 1rem;
  border-radius: var(--border-radius-md);
}

.info-card h4 {
  font-size: 1rem;
  color: var(--gray-700);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.info-card h4 i {
  color: var(--primary-color);
}

.spot-description {
  line-height: 1.7;
}

.forecast-preview {
  margin-top: 1rem;
}

.forecast-preview h4 {
  margin-bottom: 1rem;
}

.preview-days {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.preview-day {
  min-width: 100px;
  background-color: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-sm);
  padding: 0.75rem;
  text-align: center;
}

.preview-date {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.preview-wave {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.preview-wind {
  font-size: 0.85rem;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.preview-quality {
  width: 100%;
  height: 4px;
  background-color: var(--gray-300);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.preview-quality-bar {
  height: 100%;
  background-color: var(--success-color);
}

/* Responsive Styles */
@media (max-width: 992px) {
  header {
    padding: 1rem;
  }
  
  .map-container {
    flex-direction: column;
    height: auto;
  }
  
  #surf-map {
    height: 400px;
  }
  
  .map-sidebar {
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--gray-300);
    max-height: 300px;
  }
  
  .about-container {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  nav ul {
    width: 100%;
    justify-content: space-between;
  }
  
  .hero-content h2 {
    font-size: 2.2rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .forecast-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .recommendation-filters {
    flex-direction: column;
    align-items: center;
  }
  
  .filter-group {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 576px) {
  .section-header h2 {
    font-size: 1.8rem;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-logo {
    justify-content: center;
  }
  
  .modal-content {
    padding: 1.5rem;
  }
  
  .spot-header {
    flex-direction: column;
    gap: 1rem;
  }
  
  .spot-actions {
    width: 100%;
    justify-content: space-between;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 1.5rem;
}

.mb-1 {
  margin-bottom: 0.5rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-3 {
  margin-bottom: 1.5rem;
}

.quality-poor {
  background-color: var(--danger-color);
}

.quality-fair {
  background-color: var(--warning-color);
}

.quality-good {
  background-color: var(--success-color);
}

.hidden {
  display: none;
}