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

:root {
    /* Colors */
    --ocean-midnight: #0a1628;
    --ocean-deep: #1e3a8a;
    --ocean-surface: #3b82f6;
    --wave-foam: #e0f2fe;
    --hull-white: #ffffff;
    --deck-gray: #64748b;
    --warning-orange: #f59e0b;
    --danger-red: #ef4444;
    --success-green: #10b981;
    --departing-pulse: #8b5cf6;

    /* Spacing (4px grid) */
    --xs: 0.25rem;
    --sm: 0.5rem;
    --md: 0.75rem;
    --lg: 1rem;
    --xl: 1.5rem;
    --2xl: 2rem;

    /* Type scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;

    /* Shadows */
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-floating: 0 4px 12px rgba(0, 0, 0, 0.08);

    /* Animation timing */
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
    background: linear-gradient(to bottom, var(--wave-foam), #f8fafc);
    color: var(--ocean-midnight);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    padding-bottom: 80px; /* space for bottom nav */
}

/* Header (hidden after scroll) */
header {
    position: fixed;
    top: var(--sm);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: var(--sm) var(--lg);
    box-shadow: var(--shadow-floating);
    z-index: 100;
    transition: opacity 0.3s ease;
    max-width: 320px;
}

header.hidden {
    opacity: 0;
    pointer-events: none;
}

header h1 {
    font-size: var(--text-base);
    font-weight: 600;
    text-align: center;
    color: var(--ocean-deep);
}

/* Bottom navigation */
.tab-nav {
    position: fixed;
    bottom: var(--lg);
    left: 50%;
    transform: translateX(-50%);
    background: var(--hull-white);
    border-radius: 50px;
    padding: var(--xs);
    box-shadow: var(--shadow-floating);
    display: flex;
    gap: var(--xs);
    z-index: 100;
}

.tab-button {
    padding: var(--md) var(--xl);
    border: none;
    background: transparent;
    border-radius: 50px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--deck-gray);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.tab-button.active {
    background: var(--ocean-deep);
    color: white;
}

/* Main container */
.next-sailings-container {
    padding: calc(60px + var(--xl)) var(--lg) calc(80px + var(--xl));
    max-width: 1200px;
    margin: 0 auto;
}

/* Route section */
.route-section {
    background: var(--hull-white);
    border-radius: var(--lg);
    margin-bottom: var(--xl);
    border: 1px solid rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.route-title {
    background: var(--ocean-deep);
    color: white;
    padding: var(--md) var(--lg);
    font-size: var(--text-base);
    font-weight: 600;
    text-align: center;
}

/* Terminal cards */
.terminals-grid {
    display: grid;
    gap: var(--lg);
}

/* Direction toggle */
.direction-toggle {
    display: flex;
    padding: var(--sm);
    gap: var(--xs);
    background: var(--wave-foam);
}

.direction-btn {
    flex: 1;
    padding: var(--sm) var(--md);
    border: none;
    background: transparent;
    border-radius: 8px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--deck-gray);
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
}

.direction-btn.active {
    background: var(--ocean-deep);
    color: white;
}

.terminal-card {
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--lg);
    background: white;
    overflow: hidden;
}

.terminal-card.direction-hidden {
    display: none;
}

/* Sailing list */
.sailings-list {
    display: flex;
    flex-direction: column;
}

/* Sailing item: collapsible details element */
.sailing-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.sailing-summary {
    display: flex;
    flex-direction: column;
    padding: var(--md) var(--lg);
    gap: 4px;
    cursor: pointer;
    list-style: none;
}

/* Hide the default disclosure triangle */
.sailing-summary::-webkit-details-marker { display: none; }
.sailing-summary::marker { display: none; content: ''; }

/* Expand hint chevron */
.has-details .sailing-row-main::after {
    content: '\25BE'; /* small down triangle */
    font-size: 0.65rem;
    color: var(--deck-gray);
    opacity: 0.4;
    flex-shrink: 0;
}

.has-details[open] .sailing-row-main::after {
    content: '\25B4'; /* small up triangle */
}

/* Row 1: countdown + times + alert */
.sailing-row-main {
    display: flex;
    align-items: baseline;
    gap: var(--md);
}

.time-until-prominent {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--ocean-deep);
    min-width: 60px;
}

.display-time {
    font-size: var(--text-sm);
    color: var(--deck-gray);
    flex: 1;
    text-align: right;
}

/* Scheduled time is the faded anchor; estimated is the actionable time */
.display-time .scheduled-part {
    color: var(--deck-gray);
    opacity: 0.6;
}

.display-time .arrow-part {
    opacity: 0.6;
}

.display-time .estimated-part {
    font-weight: 600;
    color: var(--ocean-midnight);
}

/* Delay severity: yellow 5-10m, orange 10-20m, red 20m+ */
.display-time.delay-moderate .estimated-part {
    color: var(--warning-orange);
}

.display-time.delay-significant .estimated-part {
    color: #ea580c; /* orange-600 */
}

.display-time.delay-severe .estimated-part {
    color: var(--danger-red);
}

/* Row 2: vessel status text */
.sailing-row-status {
    font-size: var(--text-xs);
    padding-left: 0;
}

.vessel-status {
    font-size: var(--text-xs);
    color: var(--deck-gray);
}

.vessel-at_dock {
    color: var(--warning-orange);
}

.vessel-en_route {
    color: var(--ocean-surface);
}

.vessel-overdue {
    color: var(--danger-red);
    font-weight: 600;
}

.overdue-alert {
    color: var(--danger-red);
    font-weight: 500;
    font-size: var(--text-xs);
}

.detail-overdue {
    color: var(--danger-red);
    text-decoration: line-through;
    opacity: 0.7;
}

/* Row 3: capacity */
.sailing-row-capacity {
    display: flex;
    align-items: center;
    gap: var(--sm);
}

/* Detail items in expand area */
.detail-item {
    display: block;
}

.confidence-range {
    font-size: 0.65rem;
    color: var(--deck-gray);
    font-weight: 400;
    font-style: italic;
}

/* Alert button — in details expand area */
.alert-btn {
    background: none;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    padding: 4px 8px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    color: var(--deck-gray);
    transition: all 0.2s ease;
    position: relative;
    font-size: var(--text-xs);
    margin-top: 2px;
}

.alert-btn-label {
    font-size: var(--text-xs);
}

.alert-btn:hover {
    background: var(--wave-foam);
    color: var(--ocean-deep);
    border-color: var(--ocean-surface);
}

.alert-btn.alert-active {
    background: var(--warning-orange);
    border-color: var(--warning-orange);
    color: white;
}

.alert-btn.alert-active:hover {
    background: #d97706;
    border-color: #d97706;
}

/* Alert picker dropdown */
.alert-picker {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: var(--xs);
    background: white;
    border-radius: var(--md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    z-index: 50;
    min-width: 180px;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.alert-picker-title {
    padding: var(--sm) var(--md);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--ocean-deep);
    background: var(--wave-foam);
    text-align: center;
}

.alert-picker-form {
    display: flex;
    align-items: center;
    gap: var(--sm);
    padding: var(--md);
}

.alert-picker-input {
    width: 52px;
    padding: var(--xs) var(--sm);
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 6px;
    font-size: var(--text-base);
    font-weight: 600;
    text-align: center;
    color: var(--ocean-deep);
    outline: none;
}

.alert-picker-input:focus {
    border-color: var(--ocean-surface);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Hide number input spinners */
.alert-picker-input::-webkit-inner-spin-button,
.alert-picker-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.alert-picker-input[type=number] {
    -moz-appearance: textfield;
}

.alert-picker-label {
    font-size: var(--text-xs);
    color: var(--deck-gray);
}

.alert-picker-set {
    display: block;
    width: 100%;
    padding: var(--sm) var(--md);
    border: none;
    background: var(--ocean-deep);
    color: white;
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.alert-picker-set:hover {
    background: var(--ocean-surface);
}

.alert-picker-cancel {
    display: block;
    width: 100%;
    padding: var(--sm) var(--md);
    border: none;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    background: none;
    text-align: center;
    font-size: var(--text-xs);
    color: var(--danger-red);
    cursor: pointer;
    font-weight: 600;
}

.alert-picker-cancel:hover {
    background: rgba(239, 68, 68, 0.05);
}

/* Alert toast notification */
.alert-toast {
    position: fixed;
    top: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--ocean-deep);
    color: white;
    padding: var(--sm) var(--lg);
    border-radius: 50px;
    font-size: var(--text-sm);
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    z-index: 200;
    opacity: 0;
    transition: all 0.3s var(--ease-out);
    pointer-events: none;
    white-space: nowrap;
}

.alert-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Fill risk badges */
.fill-risk {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 8px;
    white-space: nowrap;
}

.fill-risk-low {
    color: var(--success-green);
    background: rgba(16, 185, 129, 0.1);
}

.fill-risk-moderate {
    color: var(--warning-orange);
    background: rgba(245, 158, 11, 0.1);
}

.fill-risk-high {
    color: var(--danger-red);
    background: rgba(239, 68, 68, 0.1);
}

/* Departed sailing info */
.departed-info {
    font-size: var(--text-xs);
    color: var(--deck-gray);
    font-style: italic;
}

.vessel-live-info {
    font-size: var(--text-xs);
    color: var(--deck-gray);
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--sm) var(--lg) var(--md);
    border-top: 1px dashed rgba(0, 0, 0, 0.06);
}

/* Status indicators */
.status-departing {
    background: rgba(246, 228, 92, 0.04);
}
.status-departed {
    opacity: 0.6;
}

/* Drive-up capacity */
.capacity-info {
    display: flex;
    align-items: center;
    gap: var(--sm);
    margin-top: 2px;
}

.capacity-bar {
    flex: 1;
    height: 6px;
    background: rgba(0, 0, 0, 0.08);
    border-radius: 3px;
    max-width: 140px;
    overflow: hidden;
}

.capacity-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s var(--ease-out);
}

.capacity-ok   { background: var(--success-green); }
.capacity-low  { background: var(--warning-orange); }
.capacity-full { background: var(--danger-red); }

.capacity-text {
    font-size: 0.65rem;
    color: var(--deck-gray);
    white-space: nowrap;
}

/* Departed sailing: subtle but informative */
.sailing-departed {
    opacity: 0.55;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
}
.sailing-departed .time-until-prominent {
    font-size: var(--text-sm);
    color: var(--deck-gray);
}
.sailing-departed .departed-info {
    font-size: var(--text-xs);
    color: var(--deck-gray);
    font-style: italic;
}

/* Last updated */
.last-updated {
    text-align: center;
    font-size: var(--text-xs);
    color: var(--deck-gray);
    margin-top: var(--xl);
}

/* Responsive adjustments */
@media (min-width: 768px) {
    .terminals-grid {
        grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    }
    .time-until-prominent {
        text-align: left;
    }
}

.map-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.ferry-map {
    width: 100%;
    height: 100%;
}

/* Ferry info panel styles */
.ferry-info-panel {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 300px;
    max-height: 400px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-floating);
    z-index: 1000;
    overflow: hidden;
    transform: translateX(0);
}

.ferry-info-panel.hidden {
    display: none;
}

.panel-header {
    background: var(--ocean-deep);
    color: white;
    padding: var(--md) var(--lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin: 0;
}

.close-button {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.close-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.panel-content {
    padding: var(--lg);
    max-height: 320px;
    overflow-y: auto;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--deck-gray);
    font-size: var(--text-sm);
}

.route-status {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: var(--text-xs);
    font-weight: 600;
}

.route-status.status-on-time {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-green);
}

.route-status.status-delayed {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-red);
}

.route-status.status-early {
    background: rgba(59, 130, 246, 0.1);
    color: var(--ocean-surface);
}

.route-status.status-unknown {
    background: rgba(100, 116, 139, 0.1);
    color: var(--deck-gray);
}

.map-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    font-size: var(--text-lg);
    color: var(--ocean-deep);
}

.ferry-marker {
    cursor: pointer;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .ferry-info-panel {
        right: 10px;
        left: 10px;
        top: 80px;
        width: auto;
    }

    .ferry-info-panel.hidden {
        display: none;
    }
}

/* ===== Predictions Dashboard ===== */

.dashboard-container {
    padding: calc(60px + var(--xl)) var(--lg) calc(80px + var(--xl));
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--lg);
}

@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.dash-card {
    background: var(--hull-white);
    border-radius: var(--lg);
    border: 1px solid rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.dash-card-wide {
    grid-column: 1 / -1;
}

.dash-card-header {
    background: var(--ocean-deep);
    color: white;
    padding: var(--sm) var(--lg);
    font-size: var(--text-sm);
    font-weight: 600;
}

.dash-card-body {
    padding: var(--lg);
}

.chart-wrap {
    position: relative;
    height: 220px;
}

.chart-wrap-tall {
    height: 280px;
}

.stat-row {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: var(--lg);
    margin-bottom: var(--md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--ocean-deep);
}

.stat-positive {
    color: var(--success-green);
}

.stat-label {
    font-size: var(--text-xs);
    color: var(--deck-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--xs);
}

.stat-meta {
    text-align: center;
    font-size: var(--text-xs);
    color: var(--deck-gray);
    margin-top: var(--sm);
}