/* Estilos base iOS */
/* :root {
    --primary-color: #007AFF;
    --secondary-color: #5AC8FA;
    --tertiary-color: #34C759;
    --background-color: #F2F2F7;
    --card-color: #FFFFFF;
    --text-primary: #000000;
    --text-secondary: #8E8E93;
    --border-radius: 16px;
    --shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  } */
  
  /* * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-primary);
    transition: all 0.3s ease;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
   */
  /* Container principal */
  /* .container {
    max-width: 100%;
    padding: 16px;
    margin: 0 auto;
  }
   */
  /* Cabeçalho */
  .app-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 24px;
  }
  
  .app-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
  }
  
  .app-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    font-weight: 400;
  }
  
  /* Seletor de data */
  .date-display {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
  }
  
  .date-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 122, 255, 0.2), transparent);
  }
  
  .nav-button {
    background-color: transparent;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-appearance: none;
  }
  
  .nav-button:active {
    background-color: rgba(0, 122, 255, 0.1);
    transform: scale(0.95);
  }
  
  .current-date-container {
    flex: 1;
    text-align: center;
  }
  
  .current-date {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
  }
  
  /* Gráfico de marés */
  .tide-container {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    overflow: hidden;
  }
  
  .tide-graph-container {
    position: relative;
    height: 220px;
    margin-bottom: 24px;
  }
  
  .tide-graph {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }
  
  .wave-path {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 4px 10px rgba(0, 122, 255, 0.2));
  }
  
  .wave-area {
    fill-opacity: 0.2;
  }
  
  .tide-point {
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
  }
  
  .tide-point:hover, .tide-point-active {
    transform: scale(1.5);
    filter: drop-shadow(0 0 8px rgba(0, 122, 255, 0.6));
  }
  
  /* Eixos do gráfico */
  .time-axis {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
  }
  
  .level-axis {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    padding-right: 8px;
  }
  
  /* Tooltip */
  .tide-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translate(-50%, -100%) scale(0.9);
    margin-top: -10px;
    z-index: 10;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  }
  
  .tide-tooltip.visible {
    opacity: 1;
    transform: translate(-50%, -100%) scale(1);
  }
  
  .tide-tooltip:after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: rotate(45deg) translateX(-50%);
  }
  
  /* Indicadores de dia */
  .day-indicator {
    display: flex;
    justify-content: center;
    margin: 16px 0;
    gap: 8px;
  }
  
  .day-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(0, 122, 255, 0.3);
    transition: all 0.3s ease;
  }
  
  .day-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.3);
  }
  
  /* Cartões de informação de maré */
  .tide-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    margin-top: 16px;
  }
  
  .tide-card {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border-left: none;
    position: relative;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 50px;
  }
  
  .tide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    transition: all 0.3s ease;
  }
  
  .tide-card.high::before {
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
  }
  
  .tide-card.low::before {
    background: linear-gradient(to bottom, var(--secondary-color), var(--tertiary-color));
  }
  
  .tide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  }
  
  .tide-card .tide-type {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 500;
    flex: 1;
  }
  
  .tide-card .tide-level {
    font-size: 16px !important;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 8px;
  }
  
  .tide-card .tide-time {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
    min-width: 60px;
    text-align: right;
  }
  
  /* Instruções */
  .instructions {
    background-color: rgba(0, 122, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-top: 24px;
  }
  
  .instructions h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 8px;
  }
  
  .instructions ul {
    list-style-type: none;
    padding-left: 0;
  }
  
  .instructions li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 15px;
  }
  
  .instructions li:before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23007AFF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
  }
  
  /* Animação de swipe */
  .swipe-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: rgba(0, 122, 255, 0.3);
    font-size: 24px;
    pointer-events: none;
    animation: swipeHint 2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    opacity: 0;
  }
  
  @keyframes swipeHint {
    0% { opacity: 0; transform: translate(-70%, -50%); }
    50% { opacity: 1; transform: translate(-50%, -50%); }
    100% { opacity: 0; transform: translate(-30%, -50%); }
  }
  
  /* Responsividade */
  @media (max-width: 768px) {
    .tide-graph-container {
      height: 180px;
    }
    
    .tide-info {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .level-axis, .time-axis {
      font-size: 11px;
    }
    
    .app-title {
      font-size: 28px;
    }
    
    .current-date {
      font-size: 18px;
    }
    
    .tide-container {
      padding: 16px;
    }
  }
  
  @media (max-width: 480px) {
    .container {
      padding: 12px;
    }
    
    .tide-graph-container {
      height: 160px;
      margin-bottom: 16px;
    }
    
    .tide-info {
      grid-template-columns: 1fr;
    }
    
    .app-title {
      font-size: 24px;
    }
    
    .app-subtitle {
      font-size: 15px;
    }
    
    .tide-container {
      padding: 16px 12px;
    }
    
    .date-display {
      padding: 12px;
    }
    
    .instructions {
      padding: 12px;
    }
    
    .instructions li {
      font-size: 14px;
    }
    
    .tide-card {
      padding: 10px 14px;
      min-height: 45px;
    }
    
    .tide-card .tide-level {
      font-size: 16px;
    }
    
    .tide-card .tide-time {
      font-size: 14px;
    }
    
    .tide-card .tide-type {
      font-size: 11px;
    }
  }
  
  .tide-card.baixo .tide-level,
  .tide-card.baixo .tide-time {
    color: #007AFF;
  }
  .tide-card.alto .tide-level,
  .tide-card.alto .tide-time {
    color: #FF3B30;
  }