/* ── Design tokens ─────────────────────────────────────────────────────────
   Light, slate-based admin theme matching the original SignageOS UI. */
:root {
    --bg: #f6f7f9;
    --card: #ffffff;
    --fg: #0f172a;
    --fg-muted: #64748b;
    --fg-faint: #94a3b8;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-fg: #ffffff;
    --good: #16a34a;
    --good-bg: #dcfce7;
    --warn: #d97706;
    --warn-bg: #fef3c7;
    --bad: #dc2626;
    --bad-bg: #fee2e2;
    --pending: #64748b;
    --pending-bg: #f1f5f9;
    --radius: 4px;
    --radius-sm: 4px;
    --shadow: 0 1px 2px rgba(15,23,42,.05), 0 1px 3px rgba(15,23,42,.06);
    font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
/* The hidden attribute must win over component display rules (modals, toggled
   fields). Without this, `.modal-overlay{display:grid}` keeps modals on screen. */
[hidden] { display: none !important; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--fg); font-size: 14px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: .85em; background: var(--pending-bg); padding: 1px 5px; border-radius: 4px; }

/* ── App shell ──────────────────────────────────────────────────────────── */
.app { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px; flex-shrink: 0; background: var(--card);
    border-right: 1px solid var(--border); position: sticky; top: 0; height: 100vh;
    display: flex; flex-direction: column;
}
.brand { display: flex; align-items: center; gap: 9px; padding: 18px 16px; border-bottom: 1px solid var(--border); }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; background: var(--primary); color: #fff; display: grid; place-items: center; }
.brand-name { font-weight: 650; }
.nav { flex: 1; padding: 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav-item { display: flex; align-items: center; gap: 11px; padding: 9px 11px; border-radius: var(--radius-sm); color: var(--fg-muted); font-weight: 500; transition: background .12s, color .12s; }
.nav-item:hover { background: var(--bg); color: var(--fg); }
.nav-item.active { background: var(--primary); color: var(--primary-fg); box-shadow: var(--shadow); }
.sidebar-foot { border-top: 1px solid var(--border); padding: 12px; }
.who { margin-bottom: 8px; }
.who-name { font-weight: 600; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.who-role { color: var(--fg-faint); font-size: 12px; text-transform: capitalize; }

.content { flex: 1; min-width: 0; padding: 28px 32px; }

/* ── Page header ────────────────────────────────────────────────────────── */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.page-title { font-size: 24px; font-weight: 700; margin: 0; }
.page-sub { color: var(--fg-muted); margin: 4px 0 0; }

/* ── Cards & grids ──────────────────────────────────────────────────────── */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-head h2 { font-size: 15px; font-weight: 650; margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 980px) { .grid-2 { grid-template-columns: 1fr; } }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 18px; }
@media (max-width: 980px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 18px; }
.stat-label { color: var(--fg-muted); font-size: 13px; font-weight: 500; }
.stat-value { font-size: 30px; font-weight: 750; margin: 4px 0 6px; }
.stat-foot { color: var(--fg-faint); font-size: 12.5px; }
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 4px; vertical-align: middle; }
.dot-good { background: var(--good); } .dot-bad { background: var(--bad); }

/* ── Tables ─────────────────────────────────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 12px; font-weight: 600; color: var(--fg-faint); text-transform: uppercase; letter-spacing: .04em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.table td { padding: 11px 10px; border-bottom: 1px solid var(--border); }
.table tr:last-child td { border-bottom: none; }
.muted { color: var(--fg-muted); }
.link { color: var(--primary); font-weight: 500; }
.link:hover { text-decoration: underline; }
.empty { color: var(--fg-muted); padding: 20px; text-align: center; }

/* ── Status pills ───────────────────────────────────────────────────────── */
.pill { display: inline-block; padding: 2px 9px; border-radius: 4px; font-size: 12px; font-weight: 600; text-transform: capitalize; }
.pill-online, .pill-executed, .pill-active { color: var(--good); background: var(--good-bg); }
.pill-offline, .pill-failed { color: var(--bad); background: var(--bad-bg); }
.pill-warning, .pill-sent { color: var(--warn); background: var(--warn-bg); }
.pill-pending, .pill-draft, .pill-inactive { color: var(--pending); background: var(--pending-bg); }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 8px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--card); color: var(--fg); font-weight: 550; font-size: 14px; cursor: pointer; transition: background .12s, border-color .12s; }
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn-ghost { border-color: transparent; background: transparent; color: var(--fg-muted); }
.btn-ghost:hover { background: var(--bg); color: var(--fg); }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 10px; font-size: 13px; }

/* ── Forms ──────────────────────────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: 13px; font-weight: 550; color: var(--fg); }
input, select, textarea { width: 100%; padding: 9px 11px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: var(--card); color: var(--fg); font: inherit; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.15); }

.alert { padding: 10px 13px; border-radius: var(--radius-sm); font-size: 13.5px; margin-bottom: 6px; }
.alert-error { color: var(--bad); background: var(--bad-bg); border: 1px solid #fecaca; }

/* ── Auth pages ─────────────────────────────────────────────────────────── */
.auth-body { display: grid; place-items: center; min-height: 100vh; background: linear-gradient(180deg, #f8fafc, #eef2f7); }
.auth-card { width: 100%; max-width: 400px; background: var(--card); border: 1px solid var(--border); border-radius: 4px; box-shadow: 0 10px 30px rgba(15,23,42,.08); padding: 30px 28px; }
.auth-head { text-align: center; margin-bottom: 20px; }
.auth-head h1 { font-size: 21px; margin: 8px 0 4px; }
.auth-head p { color: var(--fg-muted); margin: 0; font-size: 14px; }
.auth-mark { width: 46px; height: 46px; border-radius: 12px; background: var(--primary); color: #fff; display: grid; place-items: center; margin: 0 auto; }

/* ── Toolbar / layout helpers ───────────────────────────────────────────── */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.toolbar .spacer { flex: 1; }
.row { display: flex; gap: 10px; align-items: center; }
.row-wrap { flex-wrap: wrap; }
.muted-sm { color: var(--fg-faint); font-size: 12.5px; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.section-gap { margin-top: 22px; }
.inline-form { display: inline; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 720px) { .field-row { grid-template-columns: 1fr; } }
.help { color: var(--fg-faint); font-size: 12px; }
.tag { display: inline-block; padding: 1px 8px; border-radius: 4px; background: var(--pending-bg); color: var(--fg-muted); font-size: 12px; margin: 2px 2px 0 0; }

/* ── Flash + toast ──────────────────────────────────────────────────────── */
.flash-stack { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.flash { padding: 11px 14px; border-radius: var(--radius-sm); font-size: 13.5px; border: 1px solid transparent; }
.flash-success { color: var(--good); background: var(--good-bg); border-color: #bbf7d0; }
.flash-error { color: var(--bad); background: var(--bad-bg); border-color: #fecaca; }

.toast-host { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 1000; }
.toast { padding: 11px 15px; border-radius: var(--radius-sm); color: #fff; background: #0f172a; box-shadow: 0 8px 24px rgba(15,23,42,.18); font-size: 13.5px; opacity: 0; transform: translateY(8px); transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { background: var(--good); } .toast-error { background: var(--bad); } .toast-info { background: #0f172a; }

/* ── Modal ──────────────────────────────────────────────────────────────── */
.modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.45); backdrop-filter: blur(2px); display: grid; place-items: center; z-index: 1100; padding: 20px; }
.modal-card { background: var(--card); border-radius: 4px; box-shadow: 0 20px 50px rgba(15,23,42,.25); width: 100%; max-width: 560px; overflow: hidden; }
.modal-card.modal-sm { max-width: 420px; }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 650; }
.modal-body { padding: 20px; max-height: 70vh; overflow-y: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Misc list items ────────────────────────────────────────────────────── */
.list-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 18px; display: flex; flex-direction: column; gap: 6px; }
.list-card h3 { margin: 0; font-size: 15px; }
.card-actions { display: flex; gap: 8px; margin-top: auto; padding-top: 10px; }
.thumb { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: var(--radius-sm); background: #0f172a; }
details.adv > summary { cursor: pointer; color: var(--fg-muted); font-size: 13px; margin: 6px 0; }

/* ── Playlist editor rows ───────────────────────────────────────────────── */
.pl-row { display: flex; align-items: center; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.pl-row:last-child { border-bottom: none; }
.pl-thumb { width: 84px; height: 48px; border-radius: 4px; overflow: hidden; background: #0f172a; color: #fff; display: grid; place-items: center; flex-shrink: 0; }
.pl-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pl-meta { flex: 1; min-width: 0; }
.pl-name { font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pl-dur { display: flex; flex-direction: column; gap: 3px; width: 110px; flex-shrink: 0; }
.pl-dur input { padding: 6px 8px; }
.pl-actions { display: flex; gap: 5px; flex-shrink: 0; }

/* ── Media library ──────────────────────────────────────────────────────── */
.folder-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; align-items: center; }
.folder-chip { display: inline-block; padding: 5px 12px; border-radius: 4px; background: var(--card); border: 1px solid var(--border-strong); color: var(--fg-muted); font-size: 13px; font-weight: 500; }
.folder-chip:hover { background: var(--bg); color: var(--fg); }
.folder-chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.folder-chip-wrap { display: inline-flex; align-items: center; gap: 2px; }
.folder-x { border: none; background: none; color: var(--fg-faint); cursor: pointer; font-size: 16px; line-height: 1; padding: 0 4px; }
.folder-x:hover { color: var(--bad); }

.up-item { margin-top: 10px; }
.up-row { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.up-name { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.up-bar { height: 6px; background: var(--pending-bg); border-radius: 4px; overflow: hidden; }
.up-fill { height: 100%; background: var(--primary); width: 0; transition: width .2s; }

/* ── Layout editor ──────────────────────────────────────────────────────── */
.layout-editor { display: grid; grid-template-columns: 1fr 320px; gap: 18px; align-items: start; }
@media (max-width: 980px) { .layout-editor { grid-template-columns: 1fr; } }
.canvas-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.canvas { position: relative; background: #0f172a repeating-linear-gradient(45deg, #141a26 0 10px, #0f172a 10px 20px); border-radius: 4px; overflow: hidden; user-select: none; touch-action: none; }
.zone-box { position: absolute; border: 2px solid var(--primary); background: rgba(79,70,229,.18); box-sizing: border-box; cursor: move; display: flex; align-items: flex-start; }
.zone-box.selected { border-color: var(--accent, #f59e0b); box-shadow: 0 0 0 2px rgba(245,158,11,.4); z-index: 999 !important; }
.zone-label { font-size: 11px; color: #fff; background: rgba(0,0,0,.45); padding: 2px 6px; border-radius: 0 0 4px 0; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; pointer-events: none; }
.zone-handle { position: absolute; right: -1px; bottom: -1px; width: 14px; height: 14px; background: var(--primary); border: 2px solid #fff; border-radius: 4px; cursor: se-resize; }
.zone-panel { position: sticky; top: 18px; }

/* ── Group / floor plan ─────────────────────────────────────────────────── */
.member-list { max-height: 180px; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px; }
.floorplan { position: relative; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--bg); touch-action: none; user-select: none; display: none; }
.fp-img { display: block; width: 100%; height: auto; pointer-events: none; }
.fp-marker { position: absolute; transform: translate(-50%, -50%); background: var(--primary); color: #fff; font-size: 11px; font-weight: 600; padding: 3px 8px; border-radius: 4px; white-space: nowrap; cursor: move; box-shadow: 0 2px 6px rgba(0,0,0,.3); border: 2px solid #fff; }

/* ── Permissions matrix ─────────────────────────────────────────────────── */
.perm-table { width: 100%; border-collapse: collapse; }
.perm-table th, .perm-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.perm-table td.center, .perm-table th.center { text-align: center; }
.perm-section { font-weight: 650; margin: 18px 0 8px; }