/* BelloTreno 网站通用样式 */

:root {
    --md-sys-color-primary: #006a6a;
    --md-sys-color-surface: #f4fbfa;
    --train-green: #2e7d32;
    --train-grey: #cfd8dc;
    --train-red: #d32f2f;
    --text-grey: #90a4ae;
    --alert-bg: #fffde7;
    --alert-text: #f57f17;
    --text-primary: #233975;
    --bg-primary: #f4fbfa;
}

[data-theme="dark"] {
    --text-primary: #a2e6fb;
    --bg-primary: #0d131e;
    --md-sys-color-surface: #0d131e;
    --md-sys-color-primary: #4db6ac;
    --train-grey: #455a64;
    --text-grey: #78909c;
    --alert-bg: #1a2332;
    --alert-text: #ffd54f;
}

body { 
    font-family: 'Roboto', 'Noto Sans SC', sans-serif; 
    margin: 0; 
    background-color: var(--bg-primary); 
    color: var(--text-primary); 
    transition: background-color 0.3s, color 0.3s; 
    min-height: 100vh; 
    display: flex; 
    flex-direction: column; 
    overflow-x: hidden; 
}

* { box-sizing: border-box; }

/* Material Design 3 Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none; /* 关键：让点击穿透 */
    z-index: 0;
}

[data-theme="light"] .ripple::after {
    background: rgba(0, 0, 0, 0.1);
}

.ripple:active::after {
    width: 300px;
    height: 300px;
    transition: width 0s, height 0s;
}

/* 导航栏 */
.navbar { 
    position: fixed; 
    top: 0; 
    left: 0; 
    right: 0; 
    background: var(--bg-primary); 
    border-bottom: 1px solid rgba(0,0,0,0.1); 
    padding: 12px 20px; 
    display: flex; 
    justify-content: flex-end; 
    align-items: center; 
    gap: 15px; 
    z-index: 1000; 
    box-shadow: 0 2px 4px rgba(0,0,0,0.05); 
}

[data-theme="dark"] .navbar { border-bottom-color: rgba(255,255,255,0.1); }

.navbar a { 
    color: var(--text-primary); 
    text-decoration: none; 
    font-weight: 500; 
    font-size: 0.95rem; 
    transition: opacity 0.2s; 
    padding: 6px 12px; 
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    z-index: 1;
}

.navbar a:hover { opacity: 0.7; }

.theme-switch, .lang-switch { 
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    gap: 5px; 
    padding: 6px 12px; 
    border-radius: 20px; 
    background: rgba(0,0,0,0.05); 
    transition: background 0.2s; 
    position: relative;
}

[data-theme="dark"] .theme-switch, [data-theme="dark"] .lang-switch { background: rgba(255,255,255,0.1); }

.theme-switch:hover, .lang-switch:hover { background: rgba(0,0,0,0.1); }

[data-theme="dark"] .theme-switch:hover, [data-theme="dark"] .lang-switch:hover { background: rgba(255,255,255,0.15); }

.theme-switch .material-symbols-outlined, .lang-switch .material-symbols-outlined { 
    font-size: 20px; 
    color: var(--text-primary);
}

/* 下拉菜单 */
.dropdown-menu { 
    display: none; 
    position: absolute; 
    top: 100%; 
    right: 0; 
    margin-top: 8px; 
    background: var(--bg-primary); 
    border: 1px solid rgba(0,0,0,0.1); 
    border-radius: 12px; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.15); 
    min-width: 150px; 
    overflow: hidden;
    z-index: 10;
}

[data-theme="dark"] .dropdown-menu { border-color: rgba(255,255,255,0.2); }

.dropdown-menu.show { display: block; }

.dropdown-item { 
    padding: 12px 16px; 
    cursor: pointer; 
    color: var(--text-primary); 
    transition: background 0.2s; 
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.dropdown-item:hover { background: rgba(0,0,0,0.05); }

[data-theme="dark"] .dropdown-item:hover { background: rgba(255,255,255,0.1); }

.dropdown-item.active { 
    background: rgba(0,106,106,0.1); 
    font-weight: 600; 
}

.container { 
    width: 100%; 
    max-width: 950px; 
    margin: 0 auto; 
    padding: 80px 16px 16px; 
    box-sizing: border-box; 
    flex: 1; 
    overflow-x: hidden; 
}

/* 搜索区 */
.search-section { 
    margin: 40px 0 20px; 
    text-align: center; 
}

.logo-link { 
    color: var(--md-sys-color-primary); 
    text-decoration: none; 
}

.logo-link:hover { opacity: 0.8; }

md-filled-text-field { 
    width: 100%; 
    max-width: 100%; 
    --md-filled-text-field-container-shape: 28px; 
}

[data-theme="dark"] md-filled-text-field { 
    --md-filled-text-field-input-text-color: #000000; 
    --md-filled-text-field-label-text-color: #000000; 
}

.disclaimer { 
    margin-top: 12px; 
    font-size: 0.75rem; 
    color: var(--text-grey); 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    gap: 6px; 
    flex-wrap: wrap; 
}

/* 最近搜索记录 - 使用导航栏胶囊样式 */
.recent-searches-container {
    margin-top: 16px;
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.recent-searches-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-grey);
    font-weight: 500;
    flex-shrink: 0;
}

.recent-searches-label .material-symbols-outlined {
    font-size: 18px;
}

.recent-searches-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    flex: 1;
}

/* 历史记录胶囊 - 使用和导航栏相同的样式 */
.assist-chip {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px 6px 12px;
    border-radius: 20px;
    background: rgba(0,0,0,0.05);
    transition: background 0.2s;
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    user-select: none;
}

[data-theme="dark"] .assist-chip {
    background: rgba(255,255,255,0.1);
}

.assist-chip:hover {
    background: rgba(0,0,0,0.1);
}

[data-theme="dark"] .assist-chip:hover {
    background: rgba(255,255,255,0.15);
}

.assist-chip .chip-label {
    flex: 1;
}

.assist-chip .chip-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: transparent;
    transition: background 0.2s;
}

.assist-chip .chip-remove .material-symbols-outlined {
    font-size: 16px;
    color: var(--text-primary);
    opacity: 0.7;
}

.assist-chip .chip-remove:hover {
    background: rgba(0,0,0,0.15);
}

[data-theme="dark"] .assist-chip .chip-remove:hover {
    background: rgba(255,255,255,0.2);
}

.assist-chip .chip-remove:hover .material-symbols-outlined {
    opacity: 1;
}

/* 歧义选择面板 */
#disambiguation { 
    display: none; 
    background: var(--bg-primary); 
    border-radius: 24px; 
    padding: 24px; 
    margin: 0 auto 24px; 
    box-shadow: 0 8px 32px rgba(0,0,0,0.12); 
    border: 2px solid var(--md-sys-color-primary); 
    max-width: 950px; 
}

.choice-item { 
    cursor: pointer; 
    padding: 16px; 
    border-bottom: 1px solid rgba(0,0,0,0.1); 
    transition: background 0.2s; 
    border-radius: 12px; 
    margin-bottom: 8px;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .choice-item { border-bottom-color: rgba(255,255,255,0.1); }

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

.choice-item:hover { background: rgba(0,106,106,0.1); }

/* 头部卡片 */
.train-header { 
    background: var(--bg-primary); 
    padding: 24px; 
    border-radius: 24px; 
    margin: 0 auto 24px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.08); 
    border: 1px solid rgba(0,0,0,0.1); 
    position: relative; 
    max-width: 950px; 
    overflow-x: hidden; 
}

[data-theme="dark"] .train-header { border-color: rgba(255,255,255,0.2); }

.op-cat-row { 
    font-weight: 700; 
    color: var(--md-sys-color-primary); 
    margin-bottom: 8px; 
    font-size: 1.1rem; 
}

.op-cat-row a { transition: opacity 0.2s; }

.op-cat-row a:hover { opacity: 0.7; }

.op-cat-row img { 
    display: inline-block; 
    vertical-align: middle; 
    height: 1.3rem; 
    margin-left: 4px; 
}

.refresh-btn { 
    position: absolute; 
    top: 20px; 
    right: 20px; 
    cursor: pointer; 
    padding: 8px; 
    border-radius: 50%; 
    background: rgba(0,0,0,0.05); 
    transition: all 0.3s;
    overflow: hidden;
}

[data-theme="dark"] .refresh-btn { background: rgba(255,255,255,0.1); }

.refresh-btn:hover { 
    background: rgba(0,106,106,0.2); 
    transform: rotate(90deg); 
}

.refresh-btn .material-symbols-outlined { 
    font-size: 24px; 
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.train-info-wrapper { 
    display: flex; 
    justify-content: space-between; 
    align-items: flex-end; 
    gap: 20px; 
    flex-wrap: wrap; 
}

.train-route { 
    font-size: 2rem; 
    font-weight: 800; 
    color: var(--text-primary); 
    letter-spacing: -0.5px; 
    word-wrap: break-word; 
}

.train-meta { 
    font-size: 1rem; 
    color: var(--text-grey); 
    margin-top: 8px; 
    word-wrap: break-word; 
}

.train-status-section { text-align: right; }

.train-delay { 
    color: var(--train-green); 
    font-size: 1.6rem; 
    font-weight: 800; 
}

.train-delay.late { color: var(--train-red); }

.train-last-position { 
    font-size: 0.95rem; 
    color: var(--text-grey); 
    margin-top: 4px; 
}

/* 公告框 */
.alert-box { 
    background: var(--alert-bg); 
    color: var(--alert-text); 
    padding: 14px 18px; 
    border-radius: 14px; 
    margin-top: 16px; 
    font-size: 0.95rem; 
    display: flex; 
    align-items: flex-start; 
    gap: 10px; 
    border: 1px solid rgba(255,245,157,0.5); 
    line-height: 1.5; 
}

/* Timeline 布局 - Material Design 3 Segment 风格 */
.timeline-container { 
    position: relative; 
    margin: 20px auto 0; 
    padding: 40px 20px; 
    background: var(--bg-primary); 
    border-radius: 24px; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
    border: 1px solid rgba(0,0,0,0.1); 
    max-width: 950px; 
    overflow-x: hidden; 
}

[data-theme="dark"] .timeline-container { border-color: rgba(255,255,255,0.2); }

/* 站点项目 - 每个站点是一个Segment（圆点 + 下方轨道线 + 卡片） */
.station-item { 
    position: relative; 
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

/* 站点圆点和轨道容器 */
.station-dot-wrapper {
    flex-shrink: 0;
    width: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    align-self: stretch; /* 让容器撑满整个高度 */
}

/* 站点圆点 - M3 标准样式 */
.station-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 4px solid var(--train-grey);
    flex-shrink: 0;
    z-index: 2;
    transition: all 0.3s ease;
    margin-top: 10px; /* 与站名对齐 */
}

/* 轨道线段 - 从圆点下方延伸到下一站圆点 */
.segment-line {
    width: 5px;
    flex: 1; /* 填满剩余空间，自动延伸到下一站 */
    min-height: 20px;
    background: var(--train-grey);
    border-radius: 2px;
    margin-top: 2px; /* 与圆点微微间隔 */
}

/* 绿色轨道线段 - 已通过的路段 */
.segment-line.segment-active {
    background: var(--train-green);
}

/* 最后一站不显示轨道线 */
.station-item:last-child .segment-line {
    display: none;
}

/* 已通过的站点圆点 - 实心绿色小圆点 */
.station-item.dot-passed .station-dot {
    width: 14px;
    height: 14px;
    border: none;
    background: var(--train-green);
}

/* 当前站点圆点 - 绿色且放大，带脉动动画 */
.station-item.dot-current .station-dot {
    border-color: var(--train-green);
    background: var(--train-green);
    transform: scale(1.3);
    animation: pulse 2s ease-in-out infinite;
}

/* 脉动动画 */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(46, 125, 50, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(46, 125, 50, 0);
    }
}

/* 未到达的站点圆点 - 灰色空心 */
.station-item.dot-future .station-dot {
    border-color: var(--train-grey);
    background: var(--bg-primary);
}

.station-card { 
    background: rgba(0,0,0,0.02); 
    padding: 18px 24px; 
    border-radius: 16px; 
    border: 1px solid rgba(0,0,0,0.05); 
    color: #1f1f1f; 
    flex: 1; 
    margin-bottom: 20px; 
}

.station-item:last-child .station-card { margin-bottom: 0; }

[data-theme="dark"] .station-card { 
    background: rgba(255,255,255,0.05); 
    border-color: rgba(255,255,255,0.1); 
    color: #ffffff; 
}

.station-name { 
    font-weight: 700; 
    font-size: 1.25rem; 
    margin-bottom: 12px; 
    color: var(--text-primary); 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    flex-wrap: wrap; 
    word-wrap: break-word; 
}

.station-link {
    cursor: pointer;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-decoration-color: var(--md-sys-color-primary);
    transition: all 0.2s;
    position: relative;
    z-index: 2;
    display: inline-block;
}

.station-link:hover {
    color: var(--md-sys-color-primary);
    text-decoration-style: solid;
}

.station-link:active {
    opacity: 0.7;
}

.direction-badge { 
    display: inline-flex; 
    align-items: center; 
    padding: 4px 12px; 
    background: rgba(128,128,128,0.2); 
    border-radius: 8px; 
    font-size: 0.85rem; 
    font-weight: 500; 
    color: inherit; 
    white-space: nowrap; 
}

[data-theme="dark"] .direction-badge { background: rgba(128,128,128,0.3); }

.info-row { 
    display: flex; 
    gap: 35px; 
    font-size: 0.95rem; 
    margin-bottom: 8px; 
    flex-wrap: wrap; 
}

.info-row.secondary { 
    border-top: 1px dashed var(--train-grey); 
    padding-top: 12px; 
    margin-top: 12px; 
    color: var(--text-grey); 
}

.time-label { color: inherit; }

.time-item { color: inherit; }

.time-val-sched { 
    text-decoration: line-through red; 
    color: var(--text-grey); 
    margin-right: 8px; 
}

.time-val-real.late { 
    color: var(--train-red); 
    font-weight: 700; 
}

.time-val-real.early { 
    color: var(--train-green); 
    font-weight: 700; 
}

.plat-old { 
    text-decoration: line-through red; 
    color: var(--text-grey); 
    margin-right: 8px; 
}

.plat-new { 
    color: var(--train-green); 
    font-weight: 900; 
}

.plat-normal { 
    font-weight: 800; 
    color: var(--text-primary); 
}

/* 回到顶部按钮 */
.back-to-top { 
    position: fixed; 
    bottom: 30px; 
    right: 30px; 
    width: 50px; 
    height: 50px; 
    background: #233975; 
    color: white; 
    border-radius: 50%; 
    display: none; 
    justify-content: center; 
    align-items: center; 
    cursor: pointer; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.3); 
    transition: all 0.3s; 
    z-index: 999;
    overflow: hidden;
}

.back-to-top:hover { 
    background: #1a2a5a; 
    transform: translateY(-5px); 
}

.back-to-top.show { display: flex; }

.back-to-top .material-symbols-outlined { 
    font-size: 28px;
    position: relative;
    z-index: 1;
}

footer { 
    margin-top: auto; 
    padding: 20px 16px; 
    text-align: center; 
    font-size: 0.85rem; 
    color: var(--text-grey); 
    width: 100%; 
}

footer span { 
    display: block; 
    max-width: 950px; 
    margin: 0 auto; 
    word-wrap: break-word; 
    line-height: 1.6; 
}

#results { display: none; }

/* 响应式设计 - 移动端优化 */
@media (max-width: 768px) {
    .navbar { padding: 10px 12px; gap: 8px; flex-wrap: wrap; }
    .navbar a { font-size: 0.85rem; padding: 4px 8px; }
    .theme-switch, .lang-switch { padding: 4px 8px; font-size: 0.85rem; }
    .theme-switch .material-symbols-outlined, .lang-switch .material-symbols-outlined { font-size: 18px; }
    
    .container { padding: 70px 12px 12px; }
    .search-section { margin: 20px 0 15px; }
    .search-section h1 { font-size: 2rem !important; }
    .disclaimer { font-size: 0.7rem; padding: 0 8px; }
    
    .recent-searches-container { 
        margin-top: 12px; 
        padding: 10px 0; 
        gap: 8px;
    }
    .recent-searches-label { 
        font-size: 0.8rem;
    }
    .recent-searches-chips { 
        gap: 6px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
        padding-bottom: 4px;
    }
    .recent-searches-chips::-webkit-scrollbar {
        display: none; /* Chrome, Safari, Edge */
    }
    .assist-chip { 
        font-size: 0.8rem; 
        padding: 4px 6px 4px 10px;
        flex-shrink: 0;
    }
    
    #disambiguation { padding: 16px; margin: 0 8px 16px; }
    .choice-item { padding: 12px; }
    
    .train-header { padding: 16px; margin: 0 8px 16px; }
    .refresh-btn { top: 12px; right: 12px; padding: 6px; }
    .refresh-btn .material-symbols-outlined { font-size: 20px; }
    .op-cat-row { font-size: 0.95rem; }
    .train-info-wrapper { flex-direction: column; align-items: flex-start; gap: 12px; }
    .train-route { font-size: 1.4rem; }
    .train-meta { font-size: 0.85rem; }
    .train-status-section { text-align: left; width: 100%; }
    .train-delay { font-size: 1.2rem; }
    .train-last-position { font-size: 0.8rem; }
    
    .timeline-container { padding: 30px 15px; margin: 16px 8px 0; }
    
    /* 移动端站点和轨道调整 */
    .station-item { gap: 12px; }
    
    .station-dot-wrapper { width: 30px; }
    
    .station-dot {
        width: 14px;
        height: 14px;
        border: 3px solid var(--train-grey);
        margin-top: 8px;
    }
    
    .segment-line { width: 4px; }
    
    .station-item.dot-passed .station-dot {
        width: 10px;
        height: 10px;
    }
    
    .station-item.dot-current .station-dot {
        transform: scale(1.2);
    }
    .station-card { padding: 14px 16px; }
    .station-name { font-size: 1.1rem; gap: 8px; }
    .direction-badge { font-size: 0.75rem; padding: 3px 8px; }
    .info-row { gap: 20px; font-size: 0.85rem; }
    .info-row.secondary { font-size: 0.8rem; }
    
    .back-to-top { width: 45px; height: 45px; bottom: 20px; right: 20px; }
    .back-to-top .material-symbols-outlined { font-size: 24px; }
    
    footer { font-size: 0.7rem; padding: 16px 10px; }
    footer span { font-size: 0.7rem; padding: 0 5px; }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .navbar { gap: 6px; }
    .navbar a { font-size: 0.8rem; padding: 4px 6px; white-space: nowrap; }
    .theme-switch span:not(.material-symbols-outlined), 
    .lang-switch span:not(.material-symbols-outlined) { display: none; }
    
    .search-section h1 { font-size: 1.8rem !important; }
    .train-route { font-size: 1.2rem; }
    .train-meta { font-size: 0.8rem; }
    .info-row { gap: 15px; font-size: 0.8rem; }
    
    .recent-searches-label { font-size: 0.75rem; }
    .recent-searches-label .material-symbols-outlined { font-size: 16px; }
    .assist-chip { font-size: 0.75rem; padding: 4px 6px 4px 8px; }
    .assist-chip .chip-remove .material-symbols-outlined { font-size: 14px; }
    
    footer { font-size: 0.65rem; padding: 14px 8px; }
    footer span { font-size: 0.65rem; padding: 0 4px; }
}