/* Ruben admin — calm, light, one green accent; follows the OS dark mode. */

:root {
    color-scheme: light dark;
    --bg: #f6f7f5;
    --surface: #ffffff;
    --surface-2: #f1f3ef;
    --border: #e3e6df;
    --text: #1b1f1c;
    --muted: #6b726c;
    --accent: #1f7a4d;
    --accent-hover: #186340;
    --accent-soft: #e5f2ea;
    --danger: #b42318;
    --danger-soft: #fdecea;
    --warn-soft: #fdf3e1;
    --warn: #8a5a00;
    --radius: 14px;
    --radius-sm: 9px;
    --shadow: 0 1px 2px rgb(16 24 18 / 4%), 0 4px 16px rgb(16 24 18 / 4%);
    --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --mono: ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #111412;
        --surface: #181c19;
        --surface-2: #1f2420;
        --border: #2a302b;
        --text: #eef1ed;
        --muted: #9aa39c;
        --accent: #4cc38a;
        --accent-hover: #6fd3a2;
        --accent-soft: #1b3326;
        --danger: #ff8a80;
        --danger-soft: #3a1d1b;
        --warn-soft: #3a2e14;
        --warn: #f2c46d;
        --shadow: none;
    }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font: 15px/1.55 var(--font);
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

h1, h2, h3 { margin: 0; line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: 26px; font-weight: 650; }
h2 { font-size: 16px; font-weight: 600; }

code { font: 13px var(--mono); }

.muted { color: var(--muted); }
.small { font-size: 13px; }

/* ---- Top bar ---------------------------------------------------------- */

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid var(--border);
}

.topbar-inner {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 650;
    font-size: 16px;
    color: var(--text);
}
.brand:hover { color: var(--text); }

.brand-dot {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 14px;
    font-weight: 700;
}

.nav { display: flex; gap: 4px; flex: 1; }

.nav a {
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    color: var(--muted);
    font-weight: 500;
}
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--text); background: var(--surface-2); }

.topbar form { margin: 0; }

/* ---- Layout ----------------------------------------------------------- */

.page {
    max-width: 1040px;
    margin: 0 auto;
    padding: 36px 20px 64px;
}

.page-head { margin-bottom: 28px; }
.page-head p { margin: 6px 0 0; color: var(--muted); }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-main { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); align-items: start; }

.stack > * + * { margin-top: 16px; }

/* ---- Cards ------------------------------------------------------------ */

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

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 20px 0;
}

.card-body { padding: 18px 20px 20px; }

.stat { padding: 18px 20px; }
.stat-label { color: var(--muted); font-size: 13px; font-weight: 500; }
.stat-value { font-size: 30px; font-weight: 650; letter-spacing: -0.02em; margin-top: 4px; }
.stat-value.is-danger { color: var(--danger); }
a.stat-link { color: var(--text); transition: border-color .15s; }
a.stat-link:hover { color: var(--text); border-color: var(--accent); }

.todo-title { font-weight: 550; }
.todo-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; align-items: center; }
.todo-id { color: var(--muted); font-variant-numeric: tabular-nums; min-width: 34px; }
.list li.is-done .todo-title { color: var(--muted); text-decoration: line-through; }

/* ---- Lists & tables --------------------------------------------------- */

.list { list-style: none; margin: 0; padding: 0; }
.list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-top: 1px solid var(--border);
}
.list li:first-child { border-top: 0; }

.table { width: 100%; border-collapse: collapse; }
.table th {
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
}
.table td { padding: 12px 20px; border-top: 1px solid var(--border); vertical-align: middle; }
.table tr:first-child td { border-top: 0; }
.table .time { white-space: nowrap; color: var(--muted); font-variant-numeric: tabular-nums; }
.table .target { max-width: 160px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.empty { padding: 28px 20px; text-align: center; color: var(--muted); }

/* ---- Badges ----------------------------------------------------------- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: var(--surface-2);
    color: var(--muted);
    white-space: nowrap;
}
.badge-ok { background: var(--accent-soft); color: var(--accent); }
.badge-error { background: var(--danger-soft); color: var(--danger); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }

/* ---- Forms & buttons -------------------------------------------------- */

label { display: block; margin: 14px 0 6px; font-weight: 600; font-size: 14px; }

input[type="email"], input[type="password"], input[type="text"], input:not([type]) {
    width: 100%;
    padding: 11px 13px;
    font: inherit;
    color: inherit;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color .15s, box-shadow .15s;
}
input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    font: inherit;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    transition: background .15s;
}
.btn:hover { background: var(--accent-hover); color: #fff; }
.btn-block { width: 100%; margin-top: 20px; }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--border); padding: 6px 12px; font-size: 13px; }
.btn-danger:hover { background: var(--danger-soft); color: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 13px; }

/* ---- Alerts ----------------------------------------------------------- */

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
}
.alert-error { background: var(--danger-soft); color: var(--danger); }
.alert-ok { background: var(--accent-soft); color: var(--accent); }

/* ---- Auth pages ------------------------------------------------------- */

.auth {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px 16px;
}
.auth-box { width: 100%; max-width: 400px; }
.auth-brand { display: flex; justify-content: center; margin-bottom: 24px; }
.auth .card { padding: 28px; }
.auth h1 { font-size: 22px; }
.auth p { color: var(--muted); margin: 6px 0 0; }

.qr { display: flex; justify-content: center; padding: 16px; background: #fff; border-radius: var(--radius-sm); margin: 16px 0; }
.codes { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 14px; background: var(--surface-2); border-radius: var(--radius-sm); }

/* ---- Pagination ------------------------------------------------------- */

.pager { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-top: 1px solid var(--border); }

/* ---- Responsive ------------------------------------------------------- */

@media (max-width: 760px) {
    .grid-main { grid-template-columns: 1fr; }
    .grid-3 { gap: 10px; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .stat { padding: 14px; }
    .stat-label { font-size: 12px; }
    .stat-value { font-size: 24px; }

    .topbar-inner { gap: 10px; padding: 0 16px; }
    .brand-name { display: none; }
    .nav { gap: 0; }
    .nav a { padding: 7px 9px; }

    .page { padding: 24px 16px 48px; }
    h1 { font-size: 22px; }

    .card { overflow: hidden; }
    .table th, .table td { padding: 10px 5px; }
    .table th:first-child, .table td:first-child { padding-left: 14px; }
    .table th:last-child, .table td:last-child { padding-right: 14px; }
    .table .hide-sm { display: none; }
    .table .tool { max-width: 96px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .table code { font-size: 12px; }
    .badge { padding: 2px 7px; font-size: 11px; }
    .list li { padding: 12px 14px; }
}