:root {
    color-scheme: dark;
    --bg: #0b1220;
    --surface: #111b2e;
    --surface-2: #17243a;
    --border: #2a3a52;
    --text: #e7edf7;
    --muted: #91a0b6;
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --good: #22c55e;
    --warn: #f59e0b;
    --bad: #ef4444;
    --shadow: 0 18px 45px rgba(0, 0, 0, .28);
}
* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body { min-height: 100vh; margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
.hidden { display: none !important; }
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: min(440px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 32px; box-shadow: var(--shadow); }
.auth-card h1 { margin: 18px 0 8px; font-size: 1.55rem; }
.auth-card p { color: var(--muted); line-height: 1.55; }
.brand-mark { width: 50px; height: 50px; display: grid; place-items: center; background: var(--primary); color: white; border-radius: 10px; font-weight: 800; letter-spacing: -.04em; }
.brand-mark.small { width: 34px; height: 34px; border-radius: 8px; font-size: .8rem; }
.topbar { position: sticky; top: 0; z-index: 20; background: rgba(11, 18, 32, .95); border-bottom: 1px solid var(--border); backdrop-filter: blur(12px); }
.topbar-inner { max-width: 1320px; height: 66px; margin: auto; padding: 0 24px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; }
.brand, .user-actions { display: flex; align-items: center; gap: 10px; }
.user-actions { justify-content: flex-end; color: var(--muted); font-size: .9rem; }
.tabs { display: flex; height: 100%; }
.tab { border: 0; border-bottom: 3px solid transparent; background: transparent; color: var(--muted); padding: 0 18px; font-weight: 700; }
.tab:hover, .tab.active { color: var(--text); border-bottom-color: var(--primary); }
.page-shell { max-width: 1320px; margin: auto; padding: 28px 24px 60px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 22px; }
.stat-card, .panel, .server-card, .backup-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.stat-card { min-height: 120px; padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.stat-card > span { color: var(--muted); font-size: .74rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.stat-card strong { font-size: 1.45rem; }
.stat-card small { color: var(--muted); overflow-wrap: anywhere; }
.status.good, .badge.good { color: var(--good); }
.status.warn, .badge.warn { color: var(--warn); }
.status.bad, .badge.bad { color: var(--bad); }
.dashboard-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr); gap: 22px; align-items: start; }
.cards-stack { display: grid; gap: 16px; }
.server-card { padding: 20px; }
.server-card-header, .panel-heading, .section-heading, .modal-heading, .folders-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.server-card-header h2, .panel-heading h2, .section-heading h1, .modal-heading h2, .folders-heading h3 { margin: 0; }
.server-card-header p, .section-heading p, .folders-heading p { margin: 4px 0 0; color: var(--muted); }
.backup-list { display: grid; gap: 10px; margin-top: 16px; }
.backup-card { background: var(--surface-2); padding: 14px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; }
.backup-card h3 { margin: 0 0 4px; font-size: 1rem; }
.backup-card p { margin: 2px 0; color: var(--muted); font-size: .82rem; overflow-wrap: anywhere; }
.backup-card .progress { color: var(--primary-hover); }
.panel { padding: 20px; }
.panel-heading { margin-bottom: 18px; }
.history-list { max-height: 600px; overflow-y: auto; display: grid; gap: 10px; }
.history-entry { border-left: 3px solid var(--border); padding: 8px 0 8px 12px; }
.history-entry.good { border-left-color: var(--good); }
.history-entry.bad { border-left-color: var(--bad); }
.history-entry.warn { border-left-color: var(--warn); }
.history-entry strong, .history-entry span, .history-entry small { display: block; }
.history-entry span, .history-entry small { color: var(--muted); margin-top: 3px; }
.history-entry .error { color: #fca5a5; overflow-wrap: anywhere; }
.history-entry .warning { color: #fcd34d; overflow-wrap: anywhere; }
.section-heading { margin-bottom: 22px; }
.server-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.server-card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag, .badge { display: inline-flex; align-items: center; border: 1px solid var(--border); background: var(--surface-2); border-radius: 999px; padding: 5px 10px; font-size: .76rem; font-weight: 800; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.form-panel { padding: 24px; }
.form-stack { display: grid; gap: 16px; }
.form-grid { display: grid; gap: 14px; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.span-two { grid-column: 1 / -1; }
label { display: grid; gap: 7px; color: var(--muted); font-size: .86rem; font-weight: 700; }
input, select { width: 100%; background: #0b1424; color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 11px 12px; outline: none; }
select { min-height: 43px; }
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, .16); }
input[readonly] { opacity: .7; cursor: not-allowed; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { color: var(--muted); font-size: .86rem; font-weight: 700; margin-bottom: 9px; }
.switch-row { display: flex; justify-content: space-between; align-items: center; border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.switch-row input { width: 20px; height: 20px; }
.day-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 7px; }
.day-button { border: 1px solid var(--border); background: #0b1424; color: var(--muted); border-radius: 8px; padding: 9px 6px; font-weight: 800; }
.day-button.active { background: var(--primary); border-color: var(--primary); color: white; }
.button-row, .form-actions { display: flex; gap: 10px; align-items: center; }
.form-actions { justify-content: flex-end; margin-top: 22px; }
.button { border: 1px solid transparent; border-radius: 8px; padding: 10px 15px; color: var(--text); background: var(--surface-2); font-weight: 800; }
.button.primary { background: var(--primary); color: white; }
.button.primary:hover { background: var(--primary-hover); }
.button.secondary { background: #2563eb22; border-color: #3b82f666; color: #93c5fd; }
.button.danger-outline { background: transparent; border-color: #ef444466; color: #fca5a5; }
.button.ghost { background: transparent; border-color: var(--border); color: var(--muted); }
.button.compact { padding: 7px 10px; font-size: .82rem; }
.button.large { padding: 13px 22px; }
.button.full { width: 100%; }
.icon-button { border: 0; background: transparent; color: var(--muted); font-size: 1.8rem; line-height: 1; }
.help { margin: 0; color: var(--muted); line-height: 1.5; font-size: .82rem; }
.form-error { color: #fca5a5 !important; background: #7f1d1d33; border: 1px solid #ef444455; border-radius: 8px; padding: 10px 12px; }
.empty { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--border); border-radius: 10px; }
.modal { width: min(980px, calc(100% - 32px)); max-height: calc(100vh - 40px); overflow: auto; padding: 0; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); }
.modal::backdrop { background: rgba(0, 0, 0, .72); backdrop-filter: blur(4px); }
.modal form { padding: 24px; }
.modal-heading { margin-bottom: 20px; }
.folders-heading { margin: 24px 0 12px; }
.folder-list { display: grid; gap: 9px; }
.folder-row { display: grid; grid-template-columns: minmax(130px, 1fr) minmax(220px, 2fr) minmax(220px, 1.4fr) auto; gap: 8px; align-items: end; }
.folder-row button { margin-bottom: 1px; }
.toast { position: fixed; left: 50%; bottom: 26px; z-index: 100; transform: translateX(-50%); max-width: min(560px, calc(100% - 32px)); background: #1d4ed8; color: white; border-radius: 9px; box-shadow: var(--shadow); padding: 13px 18px; font-weight: 800; text-align: center; }
.toast.error { background: #991b1b; }
@media (max-width: 920px) {
    .topbar-inner { grid-template-columns: 1fr auto; height: auto; padding-top: 12px; }
    .tabs { grid-column: 1 / -1; order: 3; width: 100%; justify-content: center; height: 48px; }
    .user-actions { grid-column: 2; }
    .stats-grid, .settings-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid, .server-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
    .page-shell { padding: 20px 14px 40px; }
    .topbar-inner { padding-inline: 14px; }
    .user-actions span { display: none; }
    .tab { padding-inline: 10px; font-size: .86rem; }
    .stats-grid, .settings-grid, .form-grid.two { grid-template-columns: 1fr; }
    .span-two { grid-column: auto; }
    .day-grid { grid-template-columns: repeat(4, 1fr); }
    .section-heading, .folders-heading { align-items: flex-start; flex-direction: column; }
    .folder-row { grid-template-columns: 1fr; border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
}