:root {
    --bg: #070a16;
    --panel: #101831;
    --panel-border: #425c9f;
    --text: #eef3ff;
    --muted: #a4b4df;
    --accent: #57f6d0;
    --accent-2: #ff8cc8;
    --alert: #ff7b85;
    --good: #97ff8f;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 14% 8%, rgba(87, 246, 208, 0.14), transparent 30%),
        radial-gradient(circle at 90% 2%, rgba(255, 140, 200, 0.16), transparent 36%),
        linear-gradient(180deg, #070a16 0%, #0d1631 100%);
}

.app {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1.3rem 1rem 2rem;
}

.back-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 700;
}

.back-link:hover {
    text-decoration: underline;
}

.hero {
    margin: 0.95rem 0 1.15rem;
}

.kicker {
    margin: 0;
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
}

h1 {
    margin: 0.32rem 0 0.36rem;
    font-size: clamp(1.75rem, 3.1vw, 2.65rem);
}

.subtitle {
    margin: 0;
    color: var(--muted);
    max-width: 68ch;
}

.layout {
    display: grid;
    gap: 1rem;
    grid-template-columns: minmax(260px, 290px) minmax(320px, 1fr) minmax(300px, 340px);
    align-items: start;
}

.panel {
    background: linear-gradient(180deg, rgba(16, 24, 49, 0.97), rgba(11, 18, 40, 0.99));
    border: 1px solid var(--panel-border);
    border-radius: 14px;
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.35);
    padding: 0.9rem;
}

.panel h2 {
    margin: 0 0 0.72rem;
    font-size: 1rem;
}

.controls-panel {
    display: grid;
    gap: 0.85rem;
}

.helper {
    margin: 0;
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.35;
}

.actions {
    display: grid;
    gap: 0.42rem;
}

.actions.primary {
    grid-template-columns: 1fr 1fr;
}

button {
    border: 1px solid #667fc5;
    border-radius: 10px;
    background: linear-gradient(180deg, #36589f, #253c71);
    color: var(--text);
    font-weight: 700;
    font-size: 0.84rem;
    padding: 0.62rem 0.7rem;
    cursor: pointer;
}

button:hover {
    transform: translateY(-1px);
}

button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

button.accent {
    border-color: #8dffe8;
    color: #071612;
    background: linear-gradient(180deg, #4de2bf, #2bab8a);
}

button.ghost {
    background: linear-gradient(180deg, #253354, #1a2645);
}

.stats {
    display: grid;
    gap: 0.45rem;
}

.stats > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid rgba(111, 135, 206, 0.5);
    border-radius: 9px;
    background: rgba(20, 30, 58, 0.7);
    padding: 0.44rem 0.56rem;
}

.stats span {
    color: var(--muted);
    font-size: 0.76rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.status {
    margin: 0;
    border: 1px solid rgba(92, 116, 190, 0.6);
    border-radius: 8px;
    padding: 0.55rem;
    background: rgba(11, 19, 39, 0.7);
    color: var(--muted);
    line-height: 1.35;
    font-size: 0.82rem;
}

.status strong {
    color: var(--text);
}

.shaft-panel {
    min-height: 560px;
}

.shaft {
    border: 1px solid rgba(116, 141, 216, 0.65);
    border-radius: 12px;
    overflow: hidden;
    background:
        linear-gradient(90deg, rgba(15, 24, 49, 0.96) 0%, rgba(18, 29, 57, 0.96) 60%, rgba(18, 29, 57, 0.96) 100%),
        repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.035) 2px, transparent 2px, transparent 24px);
}

.floor-row {
    display: grid;
    grid-template-columns: 70px 1fr 80px;
    align-items: center;
    min-height: 64px;
    border-bottom: 1px solid rgba(105, 131, 205, 0.32);
    padding: 0.3rem 0.5rem;
    gap: 0.45rem;
}

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

.floor-label {
    font-weight: 800;
    color: #cfe2ff;
}

.floor-calls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem;
    min-height: 20px;
}

.call-dot,
.drop-dot {
    width: 12px;
    height: 12px;
    border-radius: 999px;
    display: inline-block;
}

.call-dot {
    background: rgba(87, 246, 208, 0.28);
    border: 1px solid rgba(87, 246, 208, 0.55);
}

.drop-dot {
    background: rgba(255, 140, 200, 0.28);
    border: 1px solid rgba(255, 140, 200, 0.58);
}

.floor-row.has-calls .floor-label {
    color: var(--accent);
}

.floor-row.has-drops .floor-label {
    text-shadow: 0 0 8px rgba(255, 140, 200, 0.45);
}

.elevator-lane {
    position: relative;
    height: 42px;
    border: 1px solid rgba(106, 133, 208, 0.5);
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(8, 13, 29, 0.92), rgba(12, 20, 39, 0.92));
}

.elevator-car {
    position: absolute;
    inset: 3px;
    border-radius: 5px;
    border: 1px solid #9edfff;
    background: linear-gradient(180deg, #71d6ff, #4787cc);
    box-shadow: 0 0 14px rgba(113, 214, 255, 0.52);
}

.dispatch-panel .queues {
    display: grid;
    gap: 0.8rem;
}

.dispatch-panel h3 {
    margin: 0 0 0.45rem;
    font-size: 0.85rem;
    color: var(--muted);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.36rem;
}

.list li {
    border: 1px solid rgba(104, 129, 203, 0.5);
    border-radius: 8px;
    background: rgba(19, 28, 53, 0.76);
    padding: 0.46rem 0.54rem;
    font-size: 0.82rem;
    line-height: 1.3;
}

.list li.warning {
    border-color: rgba(255, 123, 133, 0.7);
    color: #ffd2d7;
}

.list li.empty {
    color: var(--muted);
    font-style: italic;
}

@media (max-width: 1080px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .shaft-panel {
        min-height: unset;
    }
}