:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --ink: #172033;
    --muted: #657084;
    --line: #d9e2ef;
    --brand: #0f766e;
    --brand-ink: #ffffff;
    --danger: #b42318;
    --ok: #15803d;
    --warn: #b45309;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
}

a {
    color: #1d4ed8;
}

.topbar {
    align-items: center;
    background: #0b1220;
    color: #fff;
    display: flex;
    justify-content: space-between;
    padding: 24px clamp(16px, 4vw, 40px);
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.main-nav a {
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    padding: 10px 12px;
    text-decoration: none;
}

.topbar h1,
.hero h2,
.panel h2,
.login-card h1 {
    margin: 0;
}

.eyebrow {
    color: #0f766e;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    margin: 0 0 8px;
    text-transform: uppercase;
}

.topbar .eyebrow {
    color: #7dd3fc;
}

.layout {
    display: grid;
    gap: 18px;
    margin: 0 auto;
    max-width: 1180px;
    padding: 24px 16px 48px;
}

.hero,
.panel,
.login-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 20px;
}

.hero {
    align-items: center;
    display: grid;
    gap: 20px;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
}

.hero p,
.muted,
.hint {
    color: var(--muted);
    line-height: 1.55;
}

.metrics {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(3, 1fr);
}

.metrics article {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
}

.metrics span {
    display: block;
    font-size: 30px;
    font-weight: 800;
}

.metrics small {
    color: var(--muted);
}

.grid.two {
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
}

.grid.two.compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 18px;
}

.grid.three {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.subpanel {
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
}

.subpanel h3,
.song-library h3 {
    margin: 0 0 12px;
}

.panel-head {
    align-items: center;
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-bottom: 16px;
}

.compact-head {
    margin-bottom: 8px;
}

.pill,
.status {
    border-radius: 999px;
    display: inline-flex;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 10px;
}

.pill {
    background: #e0f2fe;
    color: #075985;
}

.status.on {
    background: #dcfce7;
    color: var(--ok);
}

.status.off {
    background: #fef3c7;
    color: var(--warn);
}

.details {
    display: grid;
    gap: 10px;
    margin: 0 0 16px;
}

.details div {
    display: flex;
    justify-content: space-between;
}

.details dt {
    color: var(--muted);
}

.details dd {
    margin: 0;
    text-align: right;
}

.table-wrap {
    overflow-x: auto;
}

.apply-box {
    align-items: center;
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 8px;
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 18px;
    padding: 14px;
}

.apply-box p {
    color: var(--muted);
    margin: 6px 0 0;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 12px 10px;
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
}

code {
    background: #edf2f7;
    border-radius: 6px;
    padding: 2px 6px;
}

.stack,
.form-grid {
    display: grid;
    gap: 12px;
}

.form-grid {
    grid-template-columns: repeat(4, minmax(160px, 1fr)) auto;
    margin-bottom: 18px;
}

.schedule-form {
    grid-template-columns: repeat(6, minmax(130px, 1fr)) auto;
}

label {
    color: var(--muted);
    display: grid;
    font-size: 13px;
    gap: 6px;
}

input {
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    font: inherit;
    min-height: 42px;
    padding: 10px 12px;
}

select {
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    font: inherit;
    min-height: 42px;
    padding: 10px 12px;
    width: 100%;
}

input[type="file"] {
    background: #fff;
}

input[type="checkbox"] {
    min-height: auto;
}

td input {
    min-width: 150px;
    width: 100%;
}

td select {
    min-width: 150px;
}

.inline-edit {
    margin: 0;
}

.time-pair {
    display: grid;
    gap: 8px;
    min-width: 210px;
}

button {
    align-self: end;
    background: var(--brand);
    border: 0;
    border-radius: 8px;
    color: var(--brand-ink);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    min-height: 42px;
    padding: 10px 14px;
}

button.ghost {
    background: #e2e8f0;
    color: var(--ink);
}

button.danger {
    background: #fee2e2;
    color: var(--danger);
}

.actions {
    display: flex;
    gap: 8px;
}

.actions form {
    margin: 0;
}

.playlist-add {
    grid-template-columns: minmax(220px, .8fr) minmax(260px, 1.2fr) auto;
}

.song-library {
    margin-bottom: 18px;
}

.track-list {
    display: grid;
    gap: 8px;
}

.track-chip {
    align-items: center;
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 8px;
    display: flex;
    gap: 8px;
    justify-content: space-between;
    padding: 8px 10px;
}

.track-meta {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.track-meta small {
    color: var(--muted);
    font-size: 11px;
    word-break: break-all;
}

.setting-row {
    align-items: end;
    display: grid;
    gap: 12px;
    grid-template-columns: minmax(160px, .8fr) minmax(120px, .6fr);
}

.checkline {
    align-items: center;
    color: var(--ink);
    display: flex;
    font-weight: 700;
    gap: 8px;
}

.interlude-lists,
.interlude-preview {
    margin-top: 18px;
}

.interlude-preview p {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.45;
    margin: 6px 0 0;
}

button.mini {
    font-size: 12px;
    min-height: 30px;
    padding: 6px 8px;
}

.alert {
    border-radius: 8px;
    padding: 12px 14px;
}

.alert.success {
    background: #dcfce7;
    color: var(--ok);
}

.alert.error {
    background: #fee2e2;
    color: var(--danger);
}

.login-page {
    display: grid;
    place-items: center;
}

.login-shell {
    width: min(420px, calc(100% - 32px));
}

.login-card {
    box-shadow: 0 18px 50px rgba(15, 23, 42, .12);
}

.text-link {
    font-weight: 700;
    text-decoration: none;
}

@media (max-width: 900px) {
    .hero,
    .grid.two,
    .grid.two.compact,
    .grid.three,
    .form-grid,
    .schedule-form,
    .playlist-add {
        grid-template-columns: 1fr;
    }

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

    .apply-box {
        align-items: stretch;
        flex-direction: column;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
        gap: 14px;
    }
}