@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-deep: #060b14;
    --bg: #0d1526;
    --bg-surface: rgba(15, 25, 50, 0.72);
    --bg-surface-hover: rgba(20, 35, 68, 0.85);
    --border: rgba(99, 145, 255, 0.15);
    --border-glow: rgba(99, 145, 255, 0.35);
    --text: #e8edf8;
    --text-dim: #8fa3c8;
    --primary: #4f8bff;
    --primary-glow: rgba(79, 139, 255, 0.25);
    --primary-dark: #2f6de0;
    --accent: #6c63ff;
    --success: #22d3a0;
    --success-dim: rgba(34, 211, 160, 0.18);
    --warning: #f5a623;
    --warning-dim: rgba(245, 166, 35, 0.18);
    --danger: #ff5b6b;
    --danger-dim: rgba(255, 91, 107, 0.18);
    --info: #38bdf8;
    --info-dim: rgba(56, 189, 248, 0.15);
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,10,0.5), 0 1px 6px rgba(0,0,10,0.3);
    --shadow-glow: 0 0 30px rgba(79,139,255,0.12);
    --glass-blur: blur(20px);
    /* legacy compat */
    --surface: var(--bg-surface);
    --muted: var(--text-dim);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-deep);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated mesh background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(79,139,255,0.10) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 90%, rgba(108,99,255,0.10) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 60% 40%, rgba(34,211,160,0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(99,145,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99,145,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: #7dabff; }

.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 24px 36px 80px;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}
.container.wide {
    width: 100%;
    max-width: 100%;
}
.container.narrow {
    max-width: 680px;
    margin: 0 auto;
}
.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

/* ─── Header ─── */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
    padding: 18px 24px;
    margin-bottom: 36px;
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.06);
    animation: slideDown 0.5s ease both;
    position: relative;
    z-index: 1;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.brand {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    background: linear-gradient(135deg, #ffffff 30%, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 8px;
}
.brand::before {
    content: 'S';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px; height: 28px;
    background: var(--primary);
    border-radius: 8px;
    color: #fff;
    font-size: 0.85rem;
    font-weight: 900;
    box-shadow: 0 0 12px rgba(79,139,255,0.5);
    -webkit-text-fill-color: #fff;
}
.brand:hover { text-decoration: none; }

.site-header nav { display: flex; align-items: center; gap: 10px; font-size: 0.875rem; }
.nav-user { color: var(--text-dim); font-size: 0.82rem; }
.nav-user strong { color: var(--primary); }

/* ─── Main animation ─── */
main { animation: fadeUp 0.55s 0.1s ease both; position: relative; z-index: 1; }
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

main h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff 40%, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.lead { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 24px; }

.card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-top: 24px;
    transition: border-color 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}
.card:hover { border-color: var(--border-glow); box-shadow: var(--shadow), var(--shadow-glow); }
.card h2 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 14px; }

/* ─── Forms ─── */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    margin-bottom: 7px;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.search-form input[type="text"] {
    width: 100%;
    padding: 11px 15px;
    background: rgba(10,20,45,0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text);
    font-family: inherit;
    transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.form-group input:focus,
.search-form input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(10,20,55,0.9);
    box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-group input::placeholder { color: rgba(143,163,200,0.4); }
.hint { font-size: 0.78rem; color: var(--text-dim); margin-top: 5px; display: block; }

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.05);
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    letter-spacing: 0.02em;
}
.btn:hover {
    text-decoration: none;
    background: rgba(255,255,255,0.1);
    border-color: var(--border-glow);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 0 20px rgba(79,139,255,0.3);
}
.btn-primary:hover { background: #6b9fff; border-color: #6b9fff; box-shadow: 0 0 28px rgba(79,139,255,0.5); }

.btn-danger  { border-color: var(--danger);  color: var(--danger); background: transparent; }
.btn-danger:hover  { background: var(--danger-dim); border-color: var(--danger); }
.btn-approve { border-color: var(--success); color: var(--success); background: transparent; }
.btn-approve:hover { background: var(--success-dim); }
.btn-reject  { border-color: var(--warning); color: var(--warning); background: transparent; }
.btn-reject:hover  { background: var(--warning-dim); }
.btn-revoke  { border-color: var(--danger);  color: var(--danger);  background: transparent; }
.btn-revoke:hover  { background: var(--danger-dim); }

.btn-sm  { padding: 6px 14px;  font-size: 0.8rem; }
.btn-xs  { padding: 4px 10px;  font-size: 0.73rem; border-radius: 6px; }
.btn-block { display: flex; width: 100%; padding: 13px; font-size: 1rem; }

/* ─── Alerts ─── */
.alert {
    padding: 13px 18px;
    border-radius: var(--radius-sm);
    margin: 14px 0;
    font-size: 0.88rem;
    border: 1px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    animation: alertIn 0.35s ease both;
}
@keyframes alertIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.alert-success { background: var(--success-dim); color: #6effd8; border-color: rgba(34,211,160,0.3); }
.alert-danger  { background: var(--danger-dim);  color: #ff9daa; border-color: rgba(255,91,107,0.3); }
.alert-warning { background: var(--warning-dim); color: #ffd07a; border-color: rgba(245,166,35,0.3); }
.alert-info    { background: var(--info-dim);    color: #7dd9ff; border-color: rgba(56,189,248,0.3); }

/* ─── Status card ─── */
.status-card { border-left: 3px solid var(--border); }
.status-card.status-approved { border-left-color: var(--success); }
.status-card.status-pending  { border-left-color: var(--warning); }
.status-card.status-rejected { border-left-color: var(--danger); }
.status-card.status-revoked  { border-left-color: var(--text-dim); }

.badge, .status-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 0.73rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-left: none;
}
.badge.status-approved, .status-badge.status-approved {
    background: rgba(34,211,160,0.18); color: #4dffc8; border: 1px solid rgba(34,211,160,0.3);
}
.badge.status-pending, .status-badge.status-pending {
    background: rgba(245,166,35,0.18); color: #ffd07a; border: 1px solid rgba(245,166,35,0.3);
}
.badge.status-rejected, .status-badge.status-rejected {
    background: rgba(255,91,107,0.18); color: #ff9daa; border: 1px solid rgba(255,91,107,0.3);
}
.badge.status-revoked, .status-badge.status-revoked {
    background: rgba(143,163,200,0.12); color: #8fa3c8; border: 1px solid rgba(143,163,200,0.2);
}

.meta { font-size: 0.78rem; color: var(--text-dim); }
.meta.note { font-style: italic; }

/* ─── Summary bar ─── */
.summary-bar { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 16px; }
.summary-item {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    color: var(--text-dim);
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.2s;
}
.summary-item strong { margin-left: 5px; color: var(--primary); font-weight: 700; }
.summary-item.active {
    background: var(--primary); border-color: var(--primary); color: #fff;
    box-shadow: 0 0 16px rgba(79,139,255,0.4);
}
.summary-item.active strong { color: #fff; }
.summary-item:hover { border-color: var(--border-glow); text-decoration: none; color: var(--text); }

/* ─── Search ─── */
.search-form { display: flex; gap: 8px; margin: 16px 0; flex-wrap: wrap; }
.search-form input[type="text"] { max-width: 320px; flex: 1; }

/* ─── Table ─── */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-top: 8px;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.855rem;
    background: transparent;
}
.data-table th,
.data-table td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.data-table thead th {
    background: rgba(10,18,40,0.8);
    font-size: 0.73rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
    font-weight: 600;
    white-space: nowrap;
}
.data-table tbody tr { background: var(--bg-surface); transition: background 0.18s; }
.data-table tbody tr:hover { background: var(--bg-surface-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table code {
    background: rgba(79,139,255,0.12);
    color: #90c0ff;
    padding: 2px 8px;
    border-radius: 5px;
    font-size: 0.8rem;
    font-family: 'Consolas', 'Fira Code', monospace;
    border: 1px solid rgba(79,139,255,0.2);
}

/* ─── Row actions ─── */
.inline-actions { display: flex; flex-direction: column; gap: 6px; }
.note-input {
    width: 100%;
    min-width: 130px;
    padding: 6px 9px;
    font-size: 0.75rem;
    background: rgba(10,20,45,0.7);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.note-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-glow); }
.note-input::placeholder { color: rgba(143,163,200,0.35); }
.action-buttons { display: flex; flex-wrap: wrap; gap: 4px; }

/* ─── Footer ─── */
.site-footer {
    margin-top: 56px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 0.78rem;
    text-align: center;
    opacity: 0.7;
    position: relative;
    z-index: 1;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(79,139,255,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(79,139,255,0.5); }

/* ─── Gate / Blocked page ─── */
.gate-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    position: relative;
    z-index: 1;
}
.gate-card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow), var(--shadow-glow);
    padding: 48px 40px;
    max-width: 520px;
    width: 100%;
    text-align: center;
    animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
    position: relative;
    overflow: hidden;
}
.gate-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--danger), var(--primary), transparent);
}
@keyframes popIn {
    from { opacity: 0; transform: scale(0.88) translateY(20px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.gate-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: block;
    animation: pulsate 2.5s ease-in-out infinite;
}
@keyframes pulsate {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%       { transform: scale(1.08); opacity: 0.9; }
}
.gate-card h1 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    background: none;
    -webkit-text-fill-color: initial;
}
.gate-card p { color: var(--text-dim); margin-bottom: 8px; font-size: 0.92rem; line-height: 1.7; }
.gate-ip {
    display: inline-block;
    background: rgba(79,139,255,0.12);
    color: #90c0ff;
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-family: 'Consolas', monospace;
    border: 1px solid rgba(79,139,255,0.25);
    margin: 8px 0 20px;
}
.gate-card .btn { margin: 6px 4px; }

/* ─── Dashboard Navigation Tabs ─── */
.admin-tabs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    flex-wrap: wrap;
}
.tab-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-dim);
    background: transparent;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    text-decoration: none;
    cursor: pointer;
}
.tab-link:hover {
    color: var(--text);
    background: rgba(79, 139, 255, 0.08);
    border-color: rgba(79, 139, 255, 0.2);
}
.tab-link.active {
    color: #fff;
    background: linear-gradient(135deg, rgba(79, 139, 255, 0.25), rgba(108, 99, 255, 0.25));
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(79, 139, 255, 0.2);
}
.tab-link .badge-counter {
    background: rgba(255, 255, 255, 0.12);
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 700;
}
.tab-link.active .badge-counter {
    background: var(--primary);
    color: #fff;
}
.tab-actions {
    margin-left: auto;
    display: flex;
    gap: 10px;
}

/* ─── KPI / Metrics Grid ─── */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}
.metric-card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.metric-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow), 0 0 20px rgba(79, 139, 255, 0.08);
}
.metric-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--primary);
    opacity: 0.7;
}
.metric-card.danger::before { background: var(--danger); }
.metric-card.success::before { background: var(--success); }
.metric-card.accent::before { background: var(--accent); }
.metric-card.warning::before { background: var(--warning); }

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.metric-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    font-weight: 600;
}
.metric-icon {
    font-size: 1.25rem;
    opacity: 0.85;
}
.metric-value {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
    font-feature-settings: 'tnum';
}
.metric-sub {
    font-size: 0.78rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ─── Encode IP Form / Card ─── */
.encode-card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 28px;
    box-shadow: var(--shadow), var(--shadow-glow);
    animation: fadeIn 0.3s ease both;
}
.encode-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}
.encode-card-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.encode-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.encode-actions {
    margin-top: 20px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ─── Result Badges & Tags ─── */
.badge-allowed {
    background: var(--success-dim);
    color: var(--success);
    border: 1px solid rgba(34, 211, 160, 0.35);
}
.badge-blocked {
    background: var(--danger-dim);
    color: var(--danger);
    border: 1px solid rgba(255, 91, 107, 0.35);
}
.badge-pending {
    background: var(--warning-dim);
    color: var(--warning);
    border: 1px solid rgba(245, 166, 35, 0.35);
}
.badge-enforced {
    background: var(--success-dim);
    color: var(--success);
    border: 1px solid rgba(34, 211, 160, 0.4);
    font-weight: 700;
}
.badge-monitoring {
    background: var(--warning-dim);
    color: var(--warning);
    border: 1px solid rgba(245, 166, 35, 0.4);
    font-weight: 700;
}
.badge-bypassed {
    background: rgba(143, 163, 200, 0.15);
    color: var(--text-dim);
    border: 1px solid rgba(143, 163, 200, 0.25);
    font-weight: 700;
}
.host-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(79, 139, 255, 0.12);
    border: 1px solid rgba(79, 139, 255, 0.22);
    color: #90c0ff;
    font-size: 0.8rem;
    font-family: Consolas, monospace;
}
.ip-code {
    font-family: Consolas, monospace;
    font-size: 0.88rem;
    padding: 3px 8px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.path-code {
    font-family: Consolas, monospace;
    font-size: 0.8rem;
    color: var(--text-dim);
    max-width: 240px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

/* ─── Section Header & Filter Row ─── */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    flex-wrap: wrap;
    gap: 12px;
}
.section-title {
    font-size: 1.18rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}
.filter-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding: 14px 18px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.filter-row select, .filter-row input {
    background: rgba(13, 21, 38, 0.8);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    padding: 8px 12px;
    font-size: 0.86rem;
}
.filter-row select:focus, .filter-row input:focus {
    outline: none;
    border-color: var(--primary);
}

/* ─── Modal Dialog ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(4, 7, 14, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease both;
}
.modal-overlay.active {
    display: flex;
}
.modal-box {
    background: #0f1932;
    border: 1px solid var(--border-glow);
    border-radius: var(--radius);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.8), 0 0 35px rgba(79, 139, 255, 0.2);
    max-width: 580px;
    width: 100%;
    overflow: hidden;
    animation: popIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
}
.modal-header h3 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.4rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body {
    padding: 24px;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .admin-tabs { flex-direction: column; align-items: stretch; }
    .tab-actions { margin-left: 0; justify-content: flex-end; }
    .metrics-grid { grid-template-columns: 1fr; }
    .filter-row { flex-direction: column; align-items: stretch; }
    .filter-row input, .filter-row select { width: 100%; }
}

@media (max-width: 640px) {
    main h1 { font-size: 1.5rem; }
    .site-header { padding: 14px 16px; }
    .container { padding: 18px 14px 60px; }
    .gate-card { padding: 32px 22px; }
    .search-form input[type="text"] { max-width: 100%; }
    .data-table th, .data-table td { padding: 9px 10px; }
}