:root {
    --bg-primary: #0d0d12;
    --bg-secondary: #13131a;
    --bg-tertiary: #1a1a24;
    --bg-card: #16161f;
    --border: rgba(255, 255, 255, 0.07);
    --border-accent: rgba(123, 67, 161, 0.4);
    --accent: #7b43a1;
    --accent-hover: #9962c4;
    --accent-glow: rgba(123, 67, 161, 0.25);
    --text-primary: #e8e8f0;
    --text-secondary: #888899;
    --text-muted: #55556a;
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --warn: #f59e0b;
    --warn-bg: rgba(245, 158, 11, 0.12);
    --neutral-bg: rgba(255,255,255,0.06);
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --radius: 10px;
    --radius-sm: 6px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ------- LOGIN ------- */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at 50% 0%, rgba(123, 67, 161, 0.18) 0%, transparent 70%), var(--bg-primary);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 24px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: 16px;
    padding: 48px 40px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 0 0 1px rgba(123,67,161,0.1);
}

.login-brand {
    text-align: center;
    margin-bottom: 40px;
}

.brand-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent), #5d2f87);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 8px 24px var(--accent-glow);
}

.brand-icon svg {
    width: 28px;
    height: 28px;
    color: #fff;
}

.brand-name {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--text-primary);
}

.brand-sub {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ------- ADMIN LAYOUT ------- */
.admin-body { background: var(--bg-primary); }

.navbar {
    height: 60px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}

.navbar-icon {
    width: 22px;
    height: 22px;
    color: var(--accent);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-user {
    font-size: 13px;
    color: var(--text-secondary);
}

.admin-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 32px;
}

/* ------- STATS ------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: border-color 0.2s;
}

.stat-card:hover { border-color: var(--border-accent); }

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -1px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-top: 6px;
    font-weight: 500;
}

/* ------- PANELS ------- */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 24px;
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.panel-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.panel-body { padding: 24px; }

/* ------- FORMS ------- */
.form-row {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 140px;
}

.form-group-wide { flex: 2; min-width: 220px; }
.form-group-action { flex: 0 0 auto; min-width: auto; }

.form-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.label-hint { font-weight: 400; text-transform: none; opacity: 0.7; }

.form-input {
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 14px;
    padding: 0 12px;
    outline: none;
    width: 100%;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ------- BUTTONS ------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 18px;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s, box-shadow 0.15s;
    white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 4px 16px var(--accent-glow); }

.btn-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(34,197,94,0.25); }
.btn-success:hover { background: rgba(34,197,94,0.2); }

.btn-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239,68,68,0.25); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-warn { background: var(--warn-bg); color: var(--warn); border: 1px solid rgba(245,158,11,0.25); }
.btn-warn:hover { background: rgba(245,158,11,0.2); }

.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text-primary); border-color: rgba(255,255,255,0.15); }

.btn-sm { height: 32px; padding: 0 12px; font-size: 12px; }
.btn-xs { height: 26px; padding: 0 8px; font-size: 11px; }
.btn-block { width: 100%; margin-top: 8px; }

/* ------- TABLE ------- */
.table-scroll { overflow-x: auto; }

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

.data-table th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover { background: rgba(255,255,255,0.025); }

.row-inactive { opacity: 0.55; }

.actions-cell {
    display: flex;
    gap: 6px;
    align-items: center;
}

.license-key {
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 0.5px;
    background: rgba(123,67,161,0.08);
    padding: 3px 7px;
    border-radius: 4px;
}

.hwid {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    color: var(--text-secondary);
    word-break: break-all;
}

.device-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
}
.device-link:hover { color: var(--accent); }

/* ------- BADGES ------- */
.badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger);  }
.badge-warn    { background: var(--warn-bg);    color: var(--warn);    }
.badge-neutral { background: var(--neutral-bg); color: var(--text-secondary); }

/* ------- ALERTS ------- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    border: 1px solid;
}

.alert-success { background: var(--success-bg); color: var(--success); border-color: rgba(34,197,94,0.3); }
.alert-error   { background: var(--danger-bg);  color: var(--danger);  border-color: rgba(239,68,68,0.3); }
.alert-warn    { background: var(--warn-bg);    color: var(--warn);    border-color: rgba(245,158,11,0.3); }

/* ------- MISC ------- */
.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
    font-size: 14px;
}

@media (max-width: 860px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .admin-main { padding: 20px 16px; }
    .form-row { flex-direction: column; }
    .form-group { min-width: 100%; }
    .navbar { padding: 0 16px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .login-card { padding: 36px 24px; }
}