:root {
    --bg: #0b1220;
    --bg-elev: #131c2f;
    --bg-elev-2: #1b2541;
    --border: #25304d;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --accent: #22d3ee;
    --good: #22c55e;
    --warn: #f59e0b;
    --bad: #ef4444;
    --food: #34d399;
    --sport: #a78bfa;
    --activity: #fb923c;
    --sleep: #1e3a8a;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 14px;
}

a {
    color: var(--accent);
}

.topbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 12px 20px;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 5;
}

.topbar__left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar__left h1 {
    margin: 0;
    font-size: 16px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
}

.topbar__center {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar__right {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-end;
}

.topbar__right label {
    color: var(--muted);
}

.series-badge {
    background: var(--bg-elev-2);
    border: 1px solid var(--accent);
    border-radius: 6px;
    padding: 6px 12px;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.04em;
}

select,
input[type='date'] {
    background: var(--bg-elev-2);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 14px;
}

.btn {
    background: var(--bg-elev-2);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
}
.btn:hover {
    background: #243153;
}
.btn--icon {
    width: 32px;
    height: 32px;
    padding: 0;
    font-size: 18px;
}
.btn--ghost {
    background: transparent;
    border-color: transparent;
    color: var(--muted);
    font-size: 18px;
}
.btn--ghost:hover {
    color: var(--text);
}

.date-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.date-label {
    color: var(--muted);
    font-size: 12px;
}

main {
    padding: 16px 20px 32px;
    max-width: 1400px;
    margin: 0 auto;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}
.chip {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 12px;
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    min-width: 80px;
}
.chip__label {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--muted);
    letter-spacing: 0.06em;
}
.chip__value {
    font-size: 16px;
    font-weight: 600;
}
.chip--good {
    border-color: var(--good);
}
.chip--warn {
    border-color: var(--warn);
}
.chip--bad {
    border-color: var(--bad);
}

.chart-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 16px;
}
#chart {
    width: 100%;
    height: 540px;
}
.chart-hint {
    color: var(--muted);
    font-size: 12px;
    text-align: center;
    margin-top: 6px;
    min-height: 16px;
}

.bottom-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}
.card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
}
.card h2 {
    margin: 0 0 10px;
    font-size: 13px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.event-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 280px;
    overflow-y: auto;
}

.event-list li {
    display: flex;
    flex-direction: column;
    background: var(--bg-elev-2);
    border-left: 3px solid var(--border);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
}
.event-list li.food {
    border-left-color: var(--food);
}
.event-list li.sport {
    border-left-color: var(--sport);
}
.event-list li.activity {
    border-left-color: var(--activity);
}
.event-meta {
    color: var(--muted);
    font-size: 11px;
    margin-top: 2px;
}
.macro-row {
    display: flex;
    gap: 10px;
    margin-top: 4px;
    font-size: 11px;
    color: var(--muted);
}

#sleepBlock .sleep-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}
#sleepBlock .sleep-row:last-child {
    border-bottom: none;
}
#sleepBlock .sleep-key {
    color: var(--muted);
}

/* ---- Export dropdown ---- */
.export {
    position: relative;
}
.export__menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 280px;
    max-height: 70vh;
    overflow-y: auto;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
    padding: 6px;
    z-index: 30;
}
.export__group-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding: 8px 10px 4px;
}
.export__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border-radius: 6px;
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
}
.export__item:hover {
    background: var(--bg-elev-2);
}
.export__item--all {
    background: var(--bg-elev-2);
    border: 1px solid var(--accent);
    margin-bottom: 4px;
}
.export__item--all .export__name {
    color: var(--accent);
    font-weight: 600;
}
.export__name {
    word-break: break-all;
}
.export__meta {
    color: var(--muted);
    font-size: 11px;
    flex-shrink: 0;
}
.export__loading,
.export__empty,
.export__error {
    padding: 12px 10px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}
.export__error {
    color: var(--bad);
}

/* ---- Login page ---- */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at top, #1e293b 0%, var(--bg) 60%);
}
.login-wrap {
    width: 100%;
    max-width: 380px;
    padding: 20px;
}
.login-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 26px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.login-title {
    margin: 0;
    font-size: 20px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent);
    text-align: center;
}
.login-sub {
    margin: -6px 0 6px;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
}
.login-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.login-field span {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
}
.login-field input {
    background: var(--bg-elev-2);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 9px 11px;
    border-radius: 6px;
    font-size: 14px;
}
.login-field input:focus {
    outline: none;
    border-color: var(--accent);
}
.login-submit {
    margin-top: 6px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 600;
    border-color: var(--accent);
    color: var(--accent);
}
.login-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.login-banner {
    border-radius: 6px;
    padding: 9px 11px;
    font-size: 13px;
    border: 1px solid var(--border);
}
.login-banner--bad {
    border-color: var(--bad);
    color: #fecaca;
    background: rgba(239, 68, 68, 0.08);
}
.login-foot {
    margin: 8px 0 0;
    text-align: center;
    font-size: 11px;
    color: var(--muted);
}

@media (max-width: 720px) {
    .topbar {
        grid-template-columns: 1fr;
        row-gap: 8px;
    }
    .topbar__center,
    .topbar__right {
        justify-content: center;
    }
    #chart {
        height: 420px;
    }
    .export__menu {
        right: auto;
        left: 0;
        min-width: 240px;
    }
}