:root {
    --bg: #0f1115;
    --bg-elev: #161a22;
    --bg-elev-2: #1d222c;
    --border: #2a2f3a;
    --text: #e6e9ef;
    --muted: #8b93a7;
    --primary: #00d084;
    --primary-hover: #00b873;
    --danger: #ff4d4f;
    --danger-hover: #e0393b;
    --accent: #74b9ff;
    --warning: #fbbf24;
    --radius: 8px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }

/* ============ Auth page ============ */
.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at top, #1a1f2e 0%, #0f1115 60%);
    padding: 20px;
}

.auth-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px 32px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.brand-logo {
    font-size: 32px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-logo-img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 2px 10px rgba(0, 208, 132, 0.25);
    flex-shrink: 0;
}

.brand-logo-lg {
    width: 96px;
    height: 96px;
    border-radius: 22px;
    box-shadow: 0 6px 24px rgba(0, 208, 132, 0.35);
}

.brand-stacked {
    flex-direction: column;
    text-align: center;
    gap: 6px;
    margin-bottom: 32px;
}

.brand-stacked .brand-name {
    font-size: 20px;
    margin-top: 8px;
}

.brand-name {
    font-size: 18px;
    font-weight: 700;
}

.brand-sub {
    font-size: 12px;
    color: var(--muted);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--muted);
}

.auth-form input,
.input,
.settings-form input[type="number"],
.settings-form input[type="text"] {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
}

.auth-form input:focus,
.input:focus {
    border-color: var(--primary);
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid var(--border);
    background: var(--bg-elev-2);
    color: var(--text);
    padding: 9px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.btn:hover { background: var(--bg-elev); }

.btn-primary {
    background: var(--primary);
    color: #041a12;
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

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

.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ============ Layout ============ */
.layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--bg-elev);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
}

.sidebar-brand { margin-bottom: 24px; }

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

.nav-item {
    display: block;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
}

.nav-item:hover { background: var(--bg-elev-2); color: var(--text); }

.nav-item.active {
    background: var(--bg-elev-2);
    color: var(--primary);
    font-weight: 600;
}

.sidebar-footer {
    padding-top: 14px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.admin-name {
    font-size: 13px;
    color: var(--muted);
    padding: 0 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.content {
    padding: 24px 32px;
    overflow-x: hidden;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.topbar h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
}

/* ============ Stats cards ============ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
}

.stat-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 28px; font-weight: 700; margin-top: 6px; }
.stat-sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ============ Toolbar ============ */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.toolbar .input { min-width: 260px; }

/* ============ Tables ============ */
.table-wrap {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table th,
.table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.table th {
    background: var(--bg-elev-2);
    color: var(--muted);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr:hover { background: var(--bg-elev-2); }
.table tbody tr:last-child td { border-bottom: none; }

.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    font-weight: 700;
    font-size: 13px;
    color: var(--text);
    vertical-align: middle;
}

.user-avatar-fallback {
    text-transform: uppercase;
}

.badge-success { background: rgba(0, 208, 132, 0.15); color: var(--primary); }
.badge-danger { background: rgba(255, 77, 79, 0.15); color: var(--danger); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }

/* ============ Pagination ============ */
.pagination {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-top: 20px;
    align-items: center;
}

.pagination button {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
}

.pagination button.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #041a12;
}

.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============ Settings form ============ */
.settings-form {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 18px;
}

.setting-item {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
}

.setting-label {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 10px;
}

.setting-label-name { font-weight: 500; }

.setting-label-value {
    color: var(--primary);
    font-family: "SF Mono", Menlo, monospace;
    font-weight: 600;
}

.setting-item input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
}

.setting-item .setting-range-hints {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--muted);
    margin-top: 4px;
}

.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s;
}

.toggle.active { background: var(--primary); }

.toggle::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: left 0.2s;
}

.toggle.active::after { left: 22px; }

.settings-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ============ Notifications ============ */
.notif-grid {
    display: grid;
    grid-template-columns: minmax(320px, 1fr) minmax(420px, 1.2fr);
    gap: 20px;
}

@media (max-width: 1024px) {
    .notif-grid { grid-template-columns: 1fr; }
}

.notif-compose,
.notif-history {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-header h2 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
}

.fcm-status {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.fcm-status.ready { background: rgba(0, 208, 132, 0.15); color: var(--primary); }
.fcm-status.off { background: rgba(255, 77, 79, 0.15); color: var(--danger); }

.notif-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.notif-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 600;
}

.notif-form input,
.notif-form textarea,
.notif-form select {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    text-transform: none;
    letter-spacing: normal;
    font-weight: normal;
    outline: none;
    transition: border-color 0.15s;
}

.notif-form input:focus,
.notif-form textarea:focus,
.notif-form select:focus {
    border-color: var(--primary);
}

.notif-form textarea { resize: vertical; min-height: 70px; }
.notif-form .mono { font-family: "SF Mono", Menlo, monospace; font-size: 12px; }

.notif-stats {
    display: flex;
    gap: 20px;
    padding: 10px 12px;
    background: var(--bg-elev-2);
    border-radius: var(--radius);
    font-size: 12px;
}

.notif-stats b { color: var(--text); }

.notif-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 4px;
}

/* ============ Competitions ============ */
.comp-grid {
    display: grid;
    grid-template-columns: minmax(340px, 1fr) minmax(420px, 1.3fr);
    gap: 20px;
    align-items: start;
}

@media (max-width: 1080px) {
    .comp-grid { grid-template-columns: 1fr; }
}

.comp-live-card,
.comp-history {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.comp-live-body {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}

.comp-metric {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
}

.comp-metric-label {
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.comp-metric-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-top: 4px;
    font-variant-numeric: tabular-nums;
}

.comp-metric-value.accent { color: var(--primary); }
.comp-metric-value.warn { color: var(--warning); }

.comp-metric-sub {
    font-size: 11px;
    color: var(--muted);
    margin-top: 2px;
}

.comp-tier-card {
    grid-column: 1 / -1;
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
}

.comp-tier-title {
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 8px;
}

.comp-tier-rows {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 4px 10px;
    font-size: 13px;
}

.comp-tier-rows .place {
    color: var(--muted);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.comp-tier-rows .reward {
    color: var(--primary);
    font-weight: 600;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.comp-live-actions {
    display: flex;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.comp-status-live {
    color: var(--primary);
    background: rgba(0, 208, 132, 0.15);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.comp-status-ended {
    color: var(--muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

/* Compose-style form used inside the "+ New Competition" modal. */
.comp-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.comp-form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 600;
}

.comp-form label input {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 9px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    text-transform: none;
    letter-spacing: normal;
    font-weight: normal;
    outline: none;
}

.comp-form label input:focus { border-color: var(--primary); }

.comp-form .full { grid-column: 1 / -1; }

.comp-form .form-section-title {
    grid-column: 1 / -1;
    color: var(--muted);
    font-size: 11px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    font-weight: 700;
    margin-top: 6px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

/* ============ Modal ============ */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    box-shadow: var(--shadow);
    max-height: 90vh;
    overflow: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 { margin: 0; font-size: 16px; }

.modal-close {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 18px;
    cursor: pointer;
}

.modal-body { padding: 20px; }

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.modal-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--muted);
}

.modal-form input,
.modal-form select {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 9px 12px;
    border-radius: var(--radius);
    font-size: 14px;
}

.modal-form .modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 10px;
}

/* ============ Messages ============ */
.error-msg {
    color: var(--danger);
    font-size: 13px;
    min-height: 18px;
    text-align: center;
}

.success-msg {
    color: var(--primary);
    font-size: 13px;
    min-height: 18px;
    margin-top: 12px;
}

/* ============ Toast ============ */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    color: var(--text);
    padding: 12px 18px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    font-size: 13px;
    z-index: 1100;
    max-width: 360px;
}

.toast.error { border-left-color: var(--danger); }

/* ============ Responsive ============ */
@media (max-width: 768px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar {
        flex-direction: row;
        align-items: center;
        padding: 10px 16px;
        overflow-x: auto;
    }
    .sidebar-brand { margin: 0 16px 0 0; }
    .nav { flex-direction: row; flex-shrink: 0; }
    .sidebar-footer { border-top: none; padding: 0 0 0 14px; border-left: 1px solid var(--border); flex-direction: row; align-items: center; }
    .content { padding: 16px; }
}