:root {
    --bg-color: #0b1329;
    --card-bg: rgba(22, 33, 58, 0.75);
    --card-bg-hover: rgba(28, 43, 76, 0.9);
    --primary: #38bdf8;
    --primary-hover: #0284c7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #22d3ee;
    --arriving-color: #38bdf8;
    --arriving-bg: rgba(56, 189, 248, 0.15);
    --arriving-border: rgba(56, 189, 248, 0.35);
    --departing-color: #f59e0b;
    --departing-bg: rgba(245, 158, 11, 0.16);
    --departing-border: rgba(245, 158, 11, 0.4);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --glass-border: rgba(255, 255, 255, 0.1);
    --modal-bg: #0f172a;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 15% 20%, rgba(56, 189, 248, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 85% 60%, rgba(34, 211, 238, 0.08) 0%, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 1.5rem 1rem;
}

.app-container {
    width: 100%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
    gap: 1rem;
}

.header-content h1 {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.25rem;
}

.header-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.35);
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--glass-border);
    white-space: nowrap;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--danger);
    box-shadow: 0 0 8px var(--danger);
    transition: background-color 0.3s, box-shadow 0.3s;
}

.status-indicator.connected .dot {
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.stats-bar {
    display: flex;
    gap: 1rem;
}

.stat {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 1rem;
    text-align: center;
    backdrop-filter: blur(10px);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.2rem;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Future Google Ads Container */
.ad-slot-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    margin: 0.5rem 0;
}

.ad-placeholder {
    width: 100%;
    max-width: 728px;
    min-height: 50px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px dashed var(--glass-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ad-badge {
    position: absolute;
    top: 4px;
    right: 8px;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Filter Controls & Timeline Header */
.timeline-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.filter-group {
    display: flex;
    gap: 0.5rem;
    background: rgba(15, 23, 42, 0.6);
    padding: 0.35rem;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.filter-chip {
    flex: 1;
    min-width: fit-content;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.55rem 1rem;
    border-radius: 999px;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.filter-chip:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.filter-chip.active {
    background: var(--primary);
    color: #0b1329;
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.4);
}

.filter-chip.arriving-chip.active {
    background: var(--primary);
    color: #0b1329;
}

.filter-chip.departing-chip.active {
    background: var(--warning);
    color: #0b1329;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.4);
}

.chip-count {
    background: rgba(0, 0, 0, 0.25);
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 800;
}

.filter-chip.active .chip-count {
    background: rgba(0, 0, 0, 0.35);
    color: #ffffff;
}

.timeline-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding-left: 0.5rem;
}

.timeline-hint::before {
    content: "ⓘ";
    font-size: 0.85rem;
    color: var(--accent);
}

/* Timeline Feed */
.ships-list.timeline-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    min-height: 250px;
}

.ship-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 1.15rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    cursor: pointer;
    position: relative;
    backdrop-filter: blur(10px);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.ship-card:hover, .ship-card:focus-visible {
    transform: translateY(-2px);
    background: var(--card-bg-hover);
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* Direction Accent Borders */
.ship-card.direction-arriving {
    border-left: 4px solid var(--arriving-color);
}

.ship-card.direction-departing {
    border-left: 4px solid var(--departing-color);
}

.ship-card.scheduled-card {
    border-left: 4px solid var(--departing-color);
    background: linear-gradient(135deg, rgba(22, 33, 58, 0.85) 0%, rgba(245, 158, 11, 0.08) 100%);
}

.ship-top-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.direction-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
}

.direction-badge-pill.arriving {
    background: var(--arriving-bg);
    color: var(--arriving-color);
    border: 1px solid var(--arriving-border);
}

.direction-badge-pill.departing {
    background: var(--departing-bg);
    color: var(--departing-color);
    border: 1px solid var(--departing-border);
}

.tap-details-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.7;
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.ship-card:hover .tap-details-hint {
    opacity: 1;
    color: var(--accent);
}

.ship-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
}

.ship-name {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.2px;
    color: var(--text-main);
    word-break: break-word;
}

.ship-type {
    display: inline-block;
    font-size: 0.68rem;
    background: rgba(56, 189, 248, 0.15);
    color: var(--primary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-top: 0.25rem;
}

.ship-type.scheduled {
    background: rgba(245, 158, 11, 0.18);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.35);
}

.eta-box {
    text-align: right;
    white-space: nowrap;
}

.eta-time {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--accent);
}

.eta-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.ship-details {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* 3-Tier Vessel Size Indicator */
.size-indicator {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.size-icons-group {
    display: inline-flex;
    align-items: flex-end;
    gap: 4px;
    background: rgba(0, 0, 0, 0.35);
    padding: 3px 6px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.size-icon-box {
    display: inline-flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0.22;
    color: var(--text-muted);
    transition: opacity 0.25s ease, color 0.25s ease, filter 0.25s ease;
}

.size-icon-box.active {
    opacity: 1;
}

.size-icon-box.small.active {
    color: var(--primary);
    filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.7));
}

.size-icon-box.medium.active {
    color: var(--accent);
    filter: drop-shadow(0 0 6px rgba(34, 211, 238, 0.7));
}

.size-icon-box.large.active {
    color: var(--warning);
    filter: drop-shadow(0 0 7px rgba(245, 158, 11, 0.7));
}

.size-label {
    font-size: 0.82rem;
    font-weight: 600;
}

.size-label.small {
    color: var(--primary);
}

.size-label.medium {
    color: var(--accent);
}

.size-label.large {
    color: var(--warning);
}

.size-label.pending {
    color: var(--text-muted);
    font-style: italic;
    font-weight: 400;
}

.empty-state {
    text-align: center;
    padding: 3.5rem 1.5rem;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.15);
    border-radius: 14px;
    border: 1px dashed var(--glass-border);
    font-size: 0.95rem;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
    margin: 0 auto 0.75rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================================
   Ship Details Modal (Drawer / Popup)
   ============================================================ */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 10, 20, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--modal-bg);
    border: 1px solid rgba(56, 189, 248, 0.3);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    border-radius: 18px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.5rem;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.open .modal-card {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-title-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.modal-ship-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.2;
}

.modal-close-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    flex-shrink: 0;
}

.modal-close-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-main);
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Modal ETA Hero Box */
.modal-eta-hero {
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-eta-hero.departing {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.25);
}

.modal-eta-title {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-eta-val {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.modal-eta-hero.departing .modal-eta-val {
    color: var(--warning);
}

.modal-eta-sub {
    font-size: 0.85rem;
    color: var(--text-main);
    font-weight: 600;
}

/* Telemetry Grid */
.telemetry-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.telemetry-cell {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.telemetry-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.telemetry-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    word-break: break-word;
}

.telemetry-value.highlight {
    color: var(--primary);
}

.telemetry-cell.full-width {
    grid-column: 1 / -1;
}

/* Responsive Styles */
@media (max-width: 600px) {
    body {
        padding: 1rem 0.75rem;
    }

    .header-content h1 {
        font-size: 1.45rem;
    }

    .stats-bar {
        gap: 0.75rem;
    }

    .stat {
        padding: 0.85rem 0.5rem;
    }

    .stat-value {
        font-size: 1.65rem;
    }

    .filter-chip {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .ship-card {
        padding: 1rem;
    }

    .ship-name {
        font-size: 1.05rem;
    }

    .eta-time {
        font-size: 1.2rem;
    }

    .modal-card {
        padding: 1.25rem;
        border-radius: 16px;
    }

    .telemetry-grid {
        grid-template-columns: 1fr;
    }
}