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

body {
    background-color: #f0ede5;
    color: #222;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    overflow: hidden;
    transition: background-color 0.4s, color 0.4s;
}

body.dark {
    background-color: #1a1a2e;
    color: #ddd;
}

#map {
    position: relative;
    width: 100vw;
    height: 100vh;
}

/* ── Clock ─────────────────────────────────────────────────── */

#clock {
    position: absolute;
    top: 16px;
    right: 20px;
    color: #555;
    font-size: 18px;
    font-weight: 400;
    letter-spacing: 1px;
    font-variant-numeric: tabular-nums;
    z-index: 10;
    transition: color 0.4s;
}

body.dark #clock {
    color: #aaa;
}

/* ── Status indicator ──────────────────────────────────────── */

#status {
    position: absolute;
    top: 18px;
    right: 120px;
    font-size: 12px;
    color: #888;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.4s;
}

#status .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #888;
    transition: background-color 0.3s;
}

#status .status-dot.ok {
    background: #3a3;
}

#status .status-dot.error {
    background: #d33;
    animation: error-blink 1s ease-in-out infinite;
}

#status .status-dot.sleeping {
    background: #888;
}

@keyframes error-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

body.dark #status {
    color: #777;
}

/* ── Tram counts ───────────────────────────────────────────── */

#tram-counts {
    position: absolute;
    top: 40px;
    right: 20px;
    font-size: 12px;
    color: #666;
    z-index: 10;
    text-align: right;
    font-variant-numeric: tabular-nums;
    transition: color 0.4s;
}

#tram-counts .tram-count-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    margin-bottom: 2px;
}

#tram-counts .count-swatch {
    width: 14px;
    height: 4px;
    border-radius: 2px;
}

body.dark #tram-counts {
    color: #999;
}

/* ── Legend ─────────────────────────────────────────────────── */

#legend {
    position: absolute;
    bottom: 16px;
    left: 20px;
    z-index: 10;
    transition: color 0.4s;
}

.legend-row {
    font-size: 13px;
    color: #555;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.4s;
}

body.dark .legend-row {
    color: #999;
}

.legend-swatch {
    display: inline-block;
    width: 24px;
    height: 6px;
    border-radius: 3px;
}

/* ── Theme toggle ──────────────────────────────────────────── */

#theme-toggle {
    position: absolute;
    top: 16px;
    left: 20px;
    width: 36px;
    height: 36px;
    border: 1px solid #ccc;
    border-radius: 50%;
    background: white;
    color: #555;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.4s, border-color 0.4s, color 0.4s;
}

#theme-toggle:hover {
    background: #eee;
}

body.dark #theme-toggle {
    background: #2a2a44;
    border-color: #555;
    color: #ddd;
}

body.dark #theme-toggle:hover {
    background: #3a3a55;
}

/* ── SVG route lines ───────────────────────────────────────── */

#lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ── Station stop — tube-map dot ───────────────────────────── */

.stop {
    position: absolute;
    width: 14px;
    height: 14px;
    background-color: white;
    border: 3px solid #222;
    border-radius: 50%;
    transform: translate(-7px, -7px);
    z-index: 5;
    transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

body.dark .stop {
    background-color: #2a2a44;
    border-color: #aaa;
}

/* Interchange: stop served by both lines */
.stop.interchange {
    width: 18px;
    height: 18px;
    border-width: 3px;
    transform: translate(-9px, -9px);
    border-radius: 4px;
}

/* ── Midpoint dots between stops ───────────────────────────── */

.midpoint {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: rgba(0, 0, 0, 0.08);
    border-radius: 50%;
    transform: translate(-3px, -3px);
    z-index: 4;
    transition: background-color 0.3s, box-shadow 0.3s;
}

body.dark .midpoint {
    background-color: rgba(255, 255, 255, 0.06);
}

/* ── Stop names ────────────────────────────────────────────── */

.stop-name {
    position: absolute;
    color: #444;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    z-index: 6;
    pointer-events: none;
    transition: color 0.3s;
}

body.dark .stop-name {
    color: #999;
}

.stop-name.above {
    transform: translate(-50%, -22px);
}

.stop-name.below {
    transform: translate(-50%, 12px);
}

/* Diagonal labels — placed to the right or left to avoid overlap */
.stop-name.diag-right {
    transform: translate(12px, -6px);
    text-align: left;
}

.stop-name.diag-left {
    transform: translate(-100%, -6px);
    text-align: right;
    margin-left: -12px;
}

.stop-name.active {
    color: #cc0000;
}

body.dark .stop-name.active {
    color: #ff4444;
}

/* ── Active stop: tram is here ─────────────────────────────── */

.stop.active {
    background-color: #dd1111;
    border-color: #dd1111;
    animation: stop-pulse 1.4s ease-in-out infinite;
    cursor: pointer;
}

/* Delayed tram at stop */
.stop.delayed {
    background-color: #cc5500;
    border-color: #cc5500;
    animation: stop-pulse-delay 1.4s ease-in-out infinite;
    cursor: pointer;
}

/* ── Active midpoint: tram is passing through ──────────────── */

.midpoint.active {
    background-color: #dd1111;
    animation: mid-pulse 1.4s ease-in-out infinite;
    cursor: pointer;
}

.midpoint.delayed {
    background-color: #cc5500;
    animation: mid-pulse-delay 1.4s ease-in-out infinite;
    cursor: pointer;
}

@keyframes stop-pulse {
    0%, 100% {
        box-shadow:
            0 0 0 3px rgba(220, 20, 20, 0.25),
            0 0 0 7px rgba(220, 20, 20, 0.08);
    }
    50% {
        box-shadow:
            0 0 0 5px rgba(220, 20, 20, 0.35),
            0 0 0 12px rgba(220, 20, 20, 0.12);
    }
}

@keyframes stop-pulse-delay {
    0%, 100% {
        box-shadow:
            0 0 0 3px rgba(204, 85, 0, 0.25),
            0 0 0 7px rgba(204, 85, 0, 0.08);
    }
    50% {
        box-shadow:
            0 0 0 5px rgba(204, 85, 0, 0.35),
            0 0 0 12px rgba(204, 85, 0, 0.12);
    }
}

@keyframes mid-pulse {
    0%, 100% {
        box-shadow:
            0 0 0 2px rgba(220, 20, 20, 0.25),
            0 0 0 5px rgba(220, 20, 20, 0.08);
    }
    50% {
        box-shadow:
            0 0 0 3px rgba(220, 20, 20, 0.35),
            0 0 0 8px rgba(220, 20, 20, 0.12);
    }
}

@keyframes mid-pulse-delay {
    0%, 100% {
        box-shadow:
            0 0 0 2px rgba(204, 85, 0, 0.25),
            0 0 0 5px rgba(204, 85, 0, 0.08);
    }
    50% {
        box-shadow:
            0 0 0 3px rgba(204, 85, 0, 0.35),
            0 0 0 8px rgba(204, 85, 0, 0.12);
    }
}

/* ── Tooltip ───────────────────────────────────────────────── */

.tooltip {
    position: absolute;
    background: white;
    border: 1px solid #ccc;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 12px;
    color: #222;
    white-space: nowrap;
    pointer-events: none;
    z-index: 100;
    transform: translate(-50%, -100%);
    margin-top: -14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    line-height: 1.5;
    transition: background-color 0.4s, border-color 0.4s, color 0.4s;
}

body.dark .tooltip {
    background: #2a2a44;
    border-color: #555;
    color: #ddd;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.tooltip .tooltip-dest {
    font-weight: 700;
    color: #111;
}

body.dark .tooltip .tooltip-dest {
    color: #eee;
}

.tooltip .tooltip-time {
    color: #dd1111;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.tooltip .tooltip-delay {
    color: #cc5500;
    font-weight: 700;
    font-size: 11px;
}

.tooltip .tooltip-label {
    color: #888;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tooltip .tooltip-direction {
    color: #666;
    font-size: 11px;
    font-style: italic;
}

body.dark .tooltip .tooltip-direction {
    color: #aaa;
}

.tooltip .tooltip-separator {
    border: none;
    border-top: 1px solid #eee;
    margin: 4px 0;
}

body.dark .tooltip .tooltip-separator {
    border-top-color: #444;
}

/* ── Departure panel ───────────────────────────────────────── */

#departure-panel {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border: 1px solid #ccc;
    border-radius: 10px;
    padding: 20px 24px;
    min-width: 280px;
    max-width: 400px;
    max-height: 70vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 200;
    font-size: 13px;
    line-height: 1.6;
    transition: background-color 0.4s, border-color 0.4s, color 0.4s;
}

body.dark #departure-panel {
    background: #2a2a44;
    border-color: #555;
    color: #ddd;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

#departure-panel h3 {
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 700;
}

#departure-panel .dep-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid #f0f0f0;
}

body.dark #departure-panel .dep-row {
    border-bottom-color: #3a3a55;
}

#departure-panel .dep-line {
    font-weight: 600;
    min-width: 50px;
}

#departure-panel .dep-dest {
    flex: 1;
    margin: 0 12px;
}

#departure-panel .dep-time {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    color: #555;
}

body.dark #departure-panel .dep-time {
    color: #aaa;
}

#departure-panel .dep-delay {
    color: #cc5500;
    font-size: 11px;
    font-weight: 600;
    margin-left: 6px;
}

#departure-panel .dep-close {
    position: absolute;
    top: 10px;
    right: 14px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: #999;
    line-height: 1;
}

#departure-panel .dep-close:hover {
    color: #333;
}

body.dark #departure-panel .dep-close:hover {
    color: #eee;
}

#departure-panel .dep-empty {
    color: #999;
    font-style: italic;
    padding: 8px 0;
}

/* ── Service gap overlay ───────────────────────────────────── */

.service-gap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #888;
    font-size: 16px;
    text-align: center;
    z-index: 50;
}

body.dark .service-gap {
    color: #777;
}