/*
 * SPDX-License-Identifier: GPL-3.0-only
 * Copyright (C) 2026 twt-cloud contributors
 */

:root {
    color-scheme: light dark;
    --bg: #f4f6f9;
    --surface: #ffffff;
    --surface-2: #eef1f5;
    --fg: #1b2027;
    --muted: #667080;
    --border: #dbe1e9;
    --accent: #2563eb;
    --accent-fg: #ffffff;
    --success: #15803d;
    --danger: #b91c1c;
    --warning: #b45309;
    --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 8px 24px rgb(16 24 40 / 4%);
    --radius: 14px;
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1216;
        --surface: #181c22;
        --surface-2: #20252d;
        --fg: #e6eaf0;
        --muted: #98a2b3;
        --border: #2b323c;
        --accent: #6b96ff;
        --accent-fg: #0b1020;
        --success: #4ade80;
        --danger: #f87171;
        --warning: #fbbf24;
        --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 10px 30px rgb(0 0 0 / 25%);
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Author display rules (label { display: grid }) otherwise beat the UA
   display:none for [hidden], leaving disabled fields visible. */
[hidden] {
    display: none !important;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    margin: 0;
    line-height: 1.25;
    font-weight: 650;
    letter-spacing: -0.01em;
}

h1 { font-size: 1.55rem; }
h2 { font-size: 1.05rem; }
h3 { font-size: 0.95rem; }

p { margin: 0; }

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

code, .mono { font-family: var(--mono); font-size: 0.92em; }

.muted { color: var(--muted); }
.small { font-size: 0.88rem; }
.wrap { overflow-wrap: anywhere; }
.negative { color: var(--danger); }
.positive { color: var(--success); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- top bar ---------- */

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    padding: 12px clamp(16px, 4vw, 32px);
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.brand-large {
    font-size: 1.45rem;
    margin-bottom: 6px;
}

.brand-icon {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: var(--accent);
    color: var(--accent-fg);
    font-size: 1.15rem;
    line-height: 1;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 3px;
    background: var(--surface-2);
    border-radius: 11px;
}

.tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 550;
    padding: 7px 13px;
    border-radius: 8px;
    cursor: pointer;
}

.tab:hover { color: var(--fg); }

.tab.active {
    background: var(--surface);
    color: var(--fg);
    box-shadow: var(--shadow);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-wrap: wrap;
}

.clock-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--muted);
    white-space: nowrap;
}

.clock-indicator .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--muted);
}

.clock-indicator.in { color: var(--success); }
.clock-indicator.in .dot {
    background: var(--success);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 18%, transparent);
}

.sync-status { font-size: 0.8rem; white-space: nowrap; }

.user-sub {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.85rem;
    color: var(--muted);
    font-family: var(--mono);
}

/* ---------- layout ---------- */

.view-root {
    max-width: 1180px;
    margin: 0 auto;
    padding: 26px clamp(16px, 4vw, 32px) 64px;
}

.view-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.view-head p { margin-top: 4px; }

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

.inline-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.9rem;
    color: var(--muted);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.status-card { grid-row: 1 / span 2; }
.week-card { grid-column: 2; grid-row: 1; }
.today-card { grid-column: 2; grid-row: 2; }

.settings-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

@media (max-width: 900px) {
    .dashboard-grid,
    .settings-grid {
        grid-template-columns: minmax(0, 1fr);
    }
    .status-card,
    .week-card,
    .today-card {
        grid-column: 1;
        grid-row: auto;
    }
}

/* ---------- cards ---------- */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
}

.card h2 { margin-bottom: 12px; }

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

.card-head h2 { margin: 0; }

.loading-card {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted);
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ---------- status ---------- */

.status-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    border-left: 4px solid var(--border);
}

.status-card.is-in { border-left-color: var(--success); }
.status-card.is-out { border-left-color: var(--warning); }

.status-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.status-pill.in {
    color: var(--success);
    background: color-mix(in srgb, var(--success) 14%, transparent);
}

.status-pill.out {
    color: var(--warning);
    background: color-mix(in srgb, var(--warning) 14%, transparent);
}

.status-time {
    font-size: clamp(2.9rem, 8vw, 4.1rem);
    font-weight: 700;
    letter-spacing: -0.045em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.status-sub { color: var(--muted); font-size: 0.9rem; }

.status-balance {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 11px 13px;
    border-radius: 10px;
    background: var(--surface-2);
    font-size: 0.9rem;
    color: var(--muted);
}

.status-balance strong {
    font-size: 1.15rem;
    color: var(--fg);
    font-variant-numeric: tabular-nums;
}

.clock-actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.clock-fields {
    display: grid;
    gap: 10px;
}

/* ---------- buttons ---------- */

.btn {
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--surface);
    color: var(--fg);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 550;
    padding: 9px 14px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.12s ease, border-color 0.12s ease, opacity 0.12s ease;
}

.btn:hover { background: var(--surface-2); }

.btn:focus-visible,
.tab:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--accent-fg);
}

.btn.primary:hover { filter: brightness(1.06); }

.btn.danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.btn.ghost { background: transparent; }
.btn.ghost:hover { background: var(--surface-2); }

.btn.small { padding: 5px 9px; font-size: 0.82rem; border-radius: 7px; }
.btn.wide { width: 100%; }

.btn-group {
    display: inline-flex;
    gap: 4px;
}

.danger-text { color: var(--danger); }
.danger-text:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); }

.actions {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

/* ---------- tables ---------- */

/* position: relative keeps the absolutely positioned .sr-only header cells
   inside the scroll container instead of the initial containing block, where
   they would widen the document on narrow screens. */
.table-wrap {
    position: relative;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 9px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table thead th {
    font-size: 0.74rem;
    font-weight: 650;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}

.data-table thead th:first-child { border-top-left-radius: 9px; }
.data-table thead th:last-child { border-top-right-radius: 9px; }

.data-table tbody tr:hover { background: color-mix(in srgb, var(--surface-2) 65%, transparent); }

.data-table tfoot th,
.data-table tfoot td {
    font-weight: 650;
    border-bottom: 0;
    border-top: 2px solid var(--border);
}

.data-table tbody tr:last-child td { border-bottom: 0; }

.week-table { min-width: 560px; }
.week-table tbody tr.today {
    background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.week-table tbody tr.today th { color: var(--accent); }
.week-table tbody tr.future { opacity: 0.55; }
.week-table tbody th { font-weight: 550; white-space: nowrap; }

.day-separator th {
    padding-top: 16px;
    padding-bottom: 7px;
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--muted);
    background: transparent !important;
    border-bottom: 1px solid var(--border);
}

.comment-cell {
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---------- badges ---------- */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-in {
    color: var(--success);
    background: color-mix(in srgb, var(--success) 13%, transparent);
}

.badge-out {
    color: var(--warning);
    background: color-mix(in srgb, var(--warning) 13%, transparent);
}

.badge-on {
    color: var(--success);
    background: color-mix(in srgb, var(--success) 13%, transparent);
}

.badge-off {
    color: var(--muted);
    background: var(--surface-2);
}

.badge-default,
.badge-type {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 13%, transparent);
}

/* ---------- forms ---------- */

label {
    display: grid;
    gap: 5px;
    font-size: 0.86rem;
    font-weight: 550;
    color: var(--muted);
}

input,
select {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--surface);
    color: var(--fg);
    font: inherit;
    font-size: 0.92rem;
}

input:hover,
select:hover { border-color: color-mix(in srgb, var(--border) 55%, var(--muted)); }

.hint {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 400;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.checks {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin: 12px 0;
}

.check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--fg);
}

.check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    padding: 0;
}

.workdays {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin: 14px 0;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.workdays legend {
    padding: 0 6px;
    font-size: 0.8rem;
    font-weight: 650;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-error {
    color: var(--danger);
    font-size: 0.86rem;
    background: color-mix(in srgb, var(--danger) 9%, transparent);
    border: 1px solid color-mix(in srgb, var(--danger) 28%, transparent);
    border-radius: 8px;
    padding: 8px 10px;
}

.login-error { margin-top: 4px; }

.facts {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 7px 16px;
    margin: 0 0 16px;
    font-size: 0.88rem;
}

.facts dt { color: var(--muted); font-weight: 550; }
.facts dd { margin: 0; }

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 20px 0;
}

/* ---------- login ---------- */

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(440px, 100%);
    display: grid;
    gap: 14px;
    padding: 26px;
}

.login-card .muted { font-size: 0.9rem; }

.login-hint {
    border-top: 1px solid var(--border);
    padding-top: 12px;
    margin-top: 2px;
    line-height: 1.55;
}

.login-hint code {
    overflow-wrap: anywhere;
    color: var(--fg);
}

/* ---------- dialog ---------- */

.dialog {
    width: min(540px, calc(100vw - 32px));
    max-height: calc(100vh - 48px);
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--fg);
    box-shadow: 0 24px 64px rgb(0 0 0 / 30%);
}

.dialog::backdrop {
    background: rgb(9 12 17 / 55%);
    backdrop-filter: blur(2px);
}

.dialog-form {
    display: grid;
    gap: 14px;
    padding: 22px;
    margin: 0;
}

.dialog-title { font-size: 1.15rem; }

.dialog-body {
    display: grid;
    gap: 12px;
}

.dialog-message { color: var(--muted); }

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---------- empty / toast ---------- */

.empty-state {
    padding: 26px 8px;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

.toast {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 50;
    max-width: min(420px, calc(100vw - 40px));
    padding: 11px 15px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--fg);
    box-shadow: 0 12px 36px rgb(0 0 0 / 22%);
    font-size: 0.9rem;
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity 0.16s ease, transform 0.16s ease;
}

.toast.visible {
    opacity: 1;
    transform: translateY(0);
}

.toast-ok { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-info { border-left: 4px solid var(--accent); }

@media (max-width: 640px) {
    .topbar { padding: 10px 14px; }
    .topbar-right { width: 100%; justify-content: flex-start; }
    .user-sub { max-width: 140px; }
    .view-root { padding: 18px 14px 56px; }
    .view-head { align-items: flex-start; flex-direction: column; }
}