/* ==========================================================================
   variables
   ========================================================================== */
   :root {
    --color-bg: #f4f5f7;
    --color-surface: #ffffff;
    --color-text: #1a2233;
    --color-text-sub: #8b93a1;
    --color-border: #e5e7eb;
    --color-primary: #4568FF;
    --color-primary-text: #ffffff;
    --color-tab-bg: #e9eaed;
    --color-tab-active-bg: #ffffff;
    --color-chip-bg: #f1f2f4;
    --color-chip-text: #5b6270;
    --color-tag-bg: #f1f2f4;
    --color-tag-text: #6b7280;
    --color-arrow: #c3c7cf;
  
    --color-backdrop: rgba(0, 0, 0, 0.5);
    --color-sheet-bg: #ffffff;
    --color-handle: #d9dbe0;
    --color-info-bg: #f4f5f7;
    --color-copy-bg: #e9eaed;
    --color-copy-text: #3a3f47;
    --color-bustago: #FF5E00;
    --color-tmoney: #0D1C2D;
    --color-close-bg: #f1f2f4;
    --color-close-text: #6b7280;
    --color-toast-bg: #1a2233;
    --color-toast-text: #ffffff;
    --color-success: #2ecc71;
  
    --fs-24: 2.4rem;
    --fs-18: 1.8rem;
    --fs-16: 1.6rem;
    --fs-14: 1.4rem;
  }
  
  @media (prefers-color-scheme: dark) {
    :root {
      --color-bg: #121212;
      --color-surface: #1c1c1e;
      --color-text: #f2f2f2;
      --color-text-sub: #9a9fa8;
      --color-border: #ffffff2a;
      --color-primary: #D5FF40;
      --color-primary-text: #000;
      --color-tab-bg: #1E201E;
      --color-tab-active-bg: #3a3a3c;
      --color-chip-bg: #2c2c2e;
      --color-chip-text: #c7c9cd;
      --color-tag-bg: #2c2c2e;
      --color-tag-text: #b4b7bd;
      --color-arrow: #55565a;
  
      --color-backdrop: rgba(0, 0, 0, 0.6);
      --color-sheet-bg: #1a1c1a;
      --color-handle: #48484a;
      --color-info-bg: #2c2c2e;
      --color-copy-bg: #3a3a3c;
      --color-copy-text: #f2f2f2;
      --color-bustago: #ff7a1a;
      --color-tmoney: #3a3a3c;
      --color-close-bg: #2c2c2e;
      --color-close-text: #c7c9cd;
      --color-toast-bg: #3a3a3c;
      --color-toast-text: #ffffff;
      --color-success: #2ecc71;
    }
  }
  
  /* ==========================================================================
     layout
     ========================================================================== */
  html,
  body {
    min-height: 100%;
    background: var(--color-bg);
  }

  main {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--color-bg);
  }

  html.is-locked,
  html.is-locked body {
    overflow: hidden;
  }
  
  .container {
    padding: 0 2rem;
  }
  
  /* ==========================================================================
     departure-title
     ========================================================================== */
  .departure-title {
    padding-top: 4.5rem;
    padding-bottom: 2.4rem;
  }
  
  .departure-title h1 {
    font-size: var(--fs-24);
    font-weight: 700;
    color: var(--color-text);
  }
  
  /* ==========================================================================
     terminal-tabs
     ========================================================================== */
  .terminal-tabs {
    padding-bottom: 2.4rem;
  }
  
  .tab-list {
    position: relative;
    display: flex;
    background: var(--color-tab-bg);
    border-radius: 1.2rem;
  }
  
  .tab-indicator {
    position: absolute;
    top: 0.4rem;
    left: 0.4rem;
    bottom: 0.4rem;
    width: calc((100% - 0.8rem) / 3);
    background: var(--color-tab-active-bg);
    border-radius: 1rem;
    transform: translateX(0);
    transition: transform 0.25s ease;
  }
  
  .tab-item {
    position: relative;
    z-index: 1;
    flex: 1;
  }
  
  .tab-item button {
    width: 100%;
    padding: 1.2rem 0;
    font-size: var(--fs-14);
    font-weight: 500;
    color: var(--color-text-sub);
    background: transparent;
    border: 0;
    border-radius: 1rem;
    transition: color 0.25s ease;
  }
  
  .tab-item.is-active button {
    color: var(--color-text);
  }

  @media (prefers-color-scheme: dark) {
    .tab-indicator {
      background: var(--color-primary);
    }
    .tab-item.is-active button {
      color: var(--color-primary-text);
    }
    .bottom-sheet{border: 2px solid var(--color-border);}
  }

  /* ==========================================================================
     search-area
     ========================================================================== */
  .search-area {
    background: var(--color-surface);
    padding-top: 2.4rem;
    padding-bottom: 2rem;
    border-radius: 2rem 2rem 0 0;
  }
  
  .search-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--color-bg);
    border-radius: 1.2rem;
    padding: 1.2rem 1.6rem;
    margin-bottom: 1.6rem;
  }
  
  .search-box .ico-search {
    width: 2.5rem;
    flex-shrink: 0;
  }
  
  .search-box input {
    flex: 1;
    border: 0;
    background: transparent;
    font-size: var(--fs-16);
    color: var(--color-text);
  }
  .search-box input:focus{outline: none;}
  .search-box input::placeholder {
    color: var(--color-text-sub);
  }
  
  .region-chip-list {
    display: flex;
    gap: 0.8rem;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  
  .region-chip-list::-webkit-scrollbar {
    display: none;
  }
  
  .chip-item button {
    white-space: nowrap;
    padding: 0.8rem 1.5rem;
    font-size: var(--fs-14);
    font-weight: 500;
    color: var(--color-chip-text);
    background: var(--color-chip-bg);
    border: 0;
    border-radius: 1.2rem;
  }
  
  .chip-item.is-active button {
    color: var(--color-primary-text);
    background: var(--color-primary);
  }
  
  /* ==========================================================================
     departure-list
     ========================================================================== */
  .departure-list {
    flex: 1;
    background: var(--color-surface);
    padding-bottom: 4rem;
  }
  
  .departure-list h2 {
    font-size: var(--fs-18);
    font-weight: 700;
    color: var(--color-text);
    padding-bottom: 1.6rem;
  }
  
  .card-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
  }
  
  .card-item {
    border: 1px solid var(--color-border);
    border-radius: 1.6rem;
  }
  
  .card-link {
    position: relative;
    display: block;
    padding: 2rem;
  }
  
  .card-tag {
    display: inline-block;
    font-size: var(--fs-14);
    font-weight: 500;
    color: var(--color-tag-text);
    background: var(--color-tag-bg);
    border-radius: 0.6rem;
    padding: 0.4rem 1rem;
    margin-bottom: 1.2rem;
  }
  
  .card-name {
    display: block;
    font-size: var(--fs-18);
    font-weight: 700;
    color: var(--color-text);
  }
  
  .card-link .ico-arrow {
    position: absolute;
    top: 50%;
    right: 2rem;
    width: 2rem;
    height: 2rem;
    transform: translateY(-50%);
  }

  .empty-message {
    padding-bottom: 6rem;
    font-size: var(--fs-16);
    color: var(--color-text);
    font-weight: bold;
  }

  .is-hidden {
    display: none !important;
  }

  /* ==========================================================================
     btn-top
     ========================================================================== */
  .btn-top {
    position: fixed;
    left: 50%;
    bottom: 2.4rem;
    z-index: 100;
    padding: 1.2rem 1.5rem 1.2rem 2.4rem;
    font-size: var(--fs-14);
    font-weight: 600;
    color: var(--color-primary-text);
    background: var(--color-primary);
    border: 0;
    border-radius: 2rem;
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 1rem);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    display: flex;
    align-items: center;
    gap: 0.7rem;
  }
  
  .btn-top.is-show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }

  .btn-top .ico-up {
    width: 2rem;
  }

  /* ==========================================================================
     toast
     ========================================================================== */
  .toast {
    width: 90%;
    position: fixed;
    top: 2.4rem;
    left: 50%;
    z-index: 300;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.4rem 2rem;
    font-size: var(--fs-16);
    color: var(--color-toast-text);
    background: var(--color-toast-bg);
    border-radius: 1.5rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -1rem);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }
  
  .toast.is-show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }
  
  .toast .ico-check {
    width: 2rem;
    height: 2rem;
    flex-shrink: 0;
  }

  @media (prefers-color-scheme: dark) {
    .toast {
      color: var(--color-primary-text);
      background: var(--color-primary);
    }
  }
  
  /* ==========================================================================
     sheet-backdrop
     ========================================================================== */
  .sheet-backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--color-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
  }
  
  .sheet-backdrop.is-open {
    opacity: 1;
    visibility: visible;
  }
  
  /* ==========================================================================
     bottom-sheet
     ========================================================================== */
  .bottom-sheet {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 201;
    background: var(--color-sheet-bg);
    border-radius: 2rem;
    padding-bottom: 3.2rem;
    transform: translateY(calc(100% + 2rem));
    transition: transform 0.3s ease;
    margin: 2rem;
  }
  
  .bottom-sheet.is-open {
    transform: translateY(0);
  }
  
  .sheet-handle {
    display: block;
    width: 4rem;
    height: 0.4rem;
    margin: 1.6rem auto;
    background: var(--color-handle);
    border-radius: 10rem;
  }
  
  .sheet-body {
    padding: 0 2rem;
  }
  
  .sheet-body h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    padding-bottom: 1rem;
  }
  
  .sheet-desc {
    font-size: var(--fs-14);
    line-height: 1.5;
    color: var(--color-text-sub);
    padding-bottom:1.5rem;
  }
  
  .sheet-info {
    background: var(--color-info-bg);
    border-radius: 1.6rem;
    padding: 1.5rem;
    margin-bottom: 2.4rem;
  }
  
  .sheet-info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 0;
  }
  
  .sheet-info-label {
    display: block;
    font-size: var(--fs-14);
    color: var(--color-text-sub);
    padding-bottom: 0.4rem;
  }
  
  .sheet-info-value {
    display: block;
    font-size: var(--fs-18);
    font-weight: 700;
    color: var(--color-text);
  }

  #sheet-departure-value {
    cursor: pointer;
  }

  .sheet-info-divider {
    height: 1px;
    background: var(--color-border);
    margin: 1.2rem 0;
  }
  
  .btn-copy {
    padding: 0.8rem 1.3rem;
    font-size: var(--fs-14);
    font-weight: 600;
    color: var(--color-copy-text);
    background: var(--color-copy-bg);
    border: 0;
    border-radius: 1rem;
  }
  
  .sheet-actions {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
  }
  
  .btn-action {
    display: block;
    text-align: center;
    padding: 1.4rem 0;
    font-size: var(--fs-16);
    font-weight: 500;
    border: 0;
    border-radius: 1.2rem;
  }
  
  .btn-action--bustago {
    color: #ffffff;
    background: var(--color-bustago);
  }
  
  .btn-action--tmoney {
    color: #ffffff;
    background: var(--color-tmoney);
  }
  
  .btn-action--close {
    color: var(--color-close-text);
    background: var(--color-close-bg);
  }

  @media (prefers-color-scheme: dark) {
    .btn-copy,
    .btn-action--bustago,
    .btn-action--tmoney {
      color: var(--color-primary-text);
      background: var(--color-primary);
    }
  }