/* ARK Cloud — operational product shell */
:root {
    --bg: #f4f5f7;
    --surface: #ffffff;
    --border: #d8dde6;
    --border-strong: #c1c8d4;
    --text: #12151c;
    --muted: #5c6575;
    --quiet: #7a8494;
    --accent: #0099cc;
    --accent-ink: #007aa3;
    --danger: #b42318;
    --danger-bg: #fef3f2;
    --ok: #067647;
    --ok-bg: #ecfdf3;
    --warn: #b54708;
    --warn-bg: #fffaeb;
    --info-bg: #eff8ff;
    --rail: #0f1720;
    --rail-text: #c9d1dc;
    --rail-active: #ffffff;
    --radius: 3px;
    --font: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { height: 100%; }

body {
    margin: 0;
    min-height: 100%;
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.45;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

/* Auth */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    background: var(--bg);
}

.auth-panel {
    width: 100%;
    max-width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 28px 24px 24px;
}

.auth-brand {
    font-size: 1.125rem;
    font-weight: 650;
    letter-spacing: 0.01em;
    margin: 0 0 4px;
}

.auth-sub {
    color: var(--muted);
    margin: 0 0 22px;
    font-size: 13px;
}

.auth-links {
    margin-top: 18px;
    font-size: 13px;
    color: var(--muted);
}

.auth-links a { margin-right: 12px; }

/* App shell */
.app-shell {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    min-height: 100vh;
}

.app-rail {
    background: var(--rail);
    color: var(--rail-text);
    padding: 20px 0 28px;
    display: flex;
    flex-direction: column;
}

.app-rail-brand {
    color: var(--rail-active);
    font-weight: 650;
    font-size: 15px;
    letter-spacing: 0.02em;
    padding: 0 18px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 12px;
}

.app-rail-brand:hover { text-decoration: none; color: #fff; }

.app-rail nav { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; flex: 1; }

.app-rail a.nav-link {
    color: var(--rail-text);
    padding: 8px 10px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
}

.app-rail a.nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.06);
    text-decoration: none;
}

.app-rail a.nav-link.is-active {
    color: var(--rail-active);
    background: rgba(255,255,255,0.1);
}

.app-rail-section {
    margin: 16px 18px 6px;
    font-size: 10px;
    font-weight: 650;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #7d8899;
}

.app-rail-foot {
    padding: 14px 18px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    margin-top: 16px;
    font-size: 12px;
}

.app-rail-foot .who { color: #fff; font-weight: 550; margin-bottom: 8px; }

.app-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 24px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.app-top h1 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 650;
}

.app-content {
    padding: 22px 24px 48px;
    max-width: 1080px;
    width: 100%;
}

.lead { color: var(--muted); margin: 0 0 18px; max-width: 52rem; }

h2.section {
    font-size: 12px;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--quiet);
    margin: 28px 0 10px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 6px;
}

h2.section:first-child { margin-top: 0; }

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
}

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

.data-table th {
    background: #f8f9fb;
    color: var(--quiet);
    font-size: 11px;
    font-weight: 650;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

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

.data-table .primary { font-weight: 600; }

/* Forms */
label.field {
    display: block;
    margin-bottom: 4px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 550;
}

input[type=text],
input[type=email],
input[type=password],
select,
textarea {
    width: 100%;
    max-width: 420px;
    padding: 9px 10px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font: inherit;
    margin-bottom: 12px;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
    outline-offset: 1px;
    border-color: var(--accent);
}

.field-error { color: var(--danger); font-size: 12px; margin: -8px 0 10px; }

button, .btn {
    display: inline-block;
    border: 1px solid var(--text);
    background: var(--text);
    color: #fff;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 550;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
}

button:hover, .btn:hover { text-decoration: none; filter: brightness(1.05); }

button.secondary, .btn.secondary {
    background: #fff;
    color: var(--text);
    border-color: var(--border-strong);
}

button.danger, .btn.danger {
    background: #fff;
    color: var(--danger);
    border-color: #f3b0aa;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }

/* Status */
.status {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: #fff;
    color: var(--muted);
}

.status-ok { border-color: #abefc6; background: var(--ok-bg); color: var(--ok); }
.status-warn { border-color: #fedf89; background: var(--warn-bg); color: var(--warn); }
.status-danger { border-color: #fecdca; background: var(--danger-bg); color: var(--danger); }
.status-info { border-color: #b2ddff; background: var(--info-bg); color: #175cd3; }
.status-muted { color: var(--quiet); }

/* Flash / notice */
.flash {
    border: 1px solid var(--border);
    background: #f8f9fb;
    padding: 10px 12px;
    margin-bottom: 16px;
    border-radius: var(--radius);
}

.flash.ok { border-color: #abefc6; background: var(--ok-bg); color: var(--ok); }
.flash.err { border-color: #fecdca; background: var(--danger-bg); color: var(--danger); }

.notice-list { display: grid; gap: 8px; margin: 0 0 18px; }
.notice {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 10px 12px;
    border-radius: var(--radius);
}
.notice.warn { border-color: #fedf89; background: var(--warn-bg); }
.notice.info { border-color: #b2ddff; background: var(--info-bg); }

/* Overview status blocks */
.status-block {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 14px 16px;
    margin-bottom: 12px;
}

.status-block .kicker {
    font-size: 11px;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--quiet);
    margin: 0 0 4px;
}

.status-block .title {
    font-size: 1.05rem;
    font-weight: 650;
    margin: 0 0 8px;
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 28px;
    color: var(--muted);
    font-size: 13px;
}

.meta-row strong { color: var(--text); font-weight: 600; }

.empty {
    color: var(--muted);
    padding: 16px;
    border: 1px dashed var(--border);
    background: var(--surface);
}

.tech-details {
    margin-top: 16px;
    font-size: 12px;
    color: var(--muted);
}

.tech-details summary { cursor: pointer; font-weight: 550; color: var(--text); }

.mono { font-family: var(--mono); font-size: 12px; }

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}

.admin-stat {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 12px;
}

.admin-stat .n {
    font-size: 1.4rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    margin: 0;
}

.admin-stat .l {
    margin: 2px 0 0;
    color: var(--quiet);
    font-size: 11px;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.admin-badge {
    display: inline-block;
    margin-left: 8px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #fff;
    background: #334155;
    padding: 2px 6px;
    border-radius: var(--radius);
    vertical-align: middle;
}

.form-panel {
    max-width: 480px;
    margin-bottom: 8px;
}

.form-panel .field {
    display: block;
    margin: 12px 0 6px;
    font-size: 12px;
    font-weight: 650;
    color: var(--quiet);
}

.form-panel input,
.form-panel select,
.row-actions select {
    width: 100%;
    max-width: 480px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    color: var(--ink);
    font: inherit;
}

.plain-list {
    margin: 0 0 16px;
    padding-left: 18px;
}

.plain-list li {
    margin: 4px 0;
    color: var(--ink);
}

@media (max-width: 800px) {
    .app-shell { grid-template-columns: 1fr; }
    .app-rail {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .app-rail nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
    }
    .app-rail-section, .app-rail-foot .who { display: none; }
    .app-content { padding: 16px 14px 40px; }
    .data-table { display: block; overflow-x: auto; }
}