/* ============================================================================
   MikroTik Cloud Manager — Premium Dark Admin Theme
   Pure Vanilla CSS | Google Font: Inter
   ============================================================================ */

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

/* ── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
    --bg-root:       #070b14;
    --bg-sidebar:    #0c1020;
    --bg-card:       #111827;
    --bg-card-hover: #162033;
    --bg-input:      #0e1624;
    --bg-table-alt:  #0f1925;

    --border:        #1c2a3f;
    --border-focus:  #6366f1;

    --primary:       #6366f1;
    --primary-light: #818cf8;
    --primary-dark:  #4f46e5;
    --primary-glow:  rgba(99,102,241,0.25);

    --accent:        #06b6d4;
    --accent-glow:   rgba(6,182,212,0.2);

    --success:       #10b981;
    --success-bg:    rgba(16,185,129,0.12);
    --warning:       #f59e0b;
    --warning-bg:    rgba(245,158,11,0.12);
    --danger:        #ef4444;
    --danger-bg:     rgba(239,68,68,0.12);
    --info:          #38bdf8;
    --info-bg:       rgba(56,189,248,0.12);

    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:     #4b5a72;

    --sidebar-width:  255px;
    --header-h:       60px;
    --radius-sm:      6px;
    --radius-md:      10px;
    --radius-lg:      16px;

    --shadow-card:    0 4px 32px rgba(0,0,0,0.5);
    --shadow-btn:     0 4px 16px rgba(99,102,241,0.35);
    --transition:     0.18s ease;
}

/* ── Reset & Base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg-root);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }

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

/* ── Sidebar ───────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-logo {
    padding: 22px 20px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 11px;
}

.sidebar-logo .logo-icon {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    box-shadow: 0 0 18px var(--primary-glow);
}

.sidebar-logo .logo-text {
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.3;
    color: var(--text-primary);
}

.sidebar-logo .logo-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 400;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-section-label {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 10px 10px 6px;
    margin-top: 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.nav-item:hover {
    background: rgba(99,102,241,0.08);
    color: var(--text-primary);
    border-color: rgba(99,102,241,0.15);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(6,182,212,0.1));
    color: var(--primary-light);
    border-color: rgba(99,102,241,0.25);
    box-shadow: 0 0 12px rgba(99,102,241,0.1);
}

.nav-item .nav-icon { font-size: 1.05rem; width: 20px; text-align: center; flex-shrink: 0; }

.sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid var(--border);
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ── Main Content ──────────────────────────────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: var(--header-h);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
}

.topbar-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.topbar-user {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.page-content {
    flex: 1;
    padding: 28px;
    max-width: 1400px;
    width: 100%;
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.page-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 3px;
}

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.card-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 22px;
}

/* ── Stats Cards ────────────────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
}

.stat-card.primary::before   { background: linear-gradient(90deg, var(--primary), var(--accent)); }
.stat-card.success::before   { background: var(--success); }
.stat-card.warning::before   { background: var(--warning); }
.stat-card.danger::before    { background: var(--danger); }
.stat-card.info::before      { background: var(--info); }

.stat-card:hover { transform: translateY(-2px); border-color: var(--border-focus); }

.stat-icon {
    font-size: 1.6rem;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ── Tables ─────────────────────────────────────────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

thead {
    background: rgba(99,102,241,0.06);
    border-bottom: 1px solid var(--border);
}

thead th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    white-space: nowrap;
}

tbody tr {
    border-bottom: 1px solid rgba(28,42,63,0.7);
    transition: background var(--transition);
}

tbody tr:last-child { border-bottom: none; }

tbody tr:nth-child(even) { background: var(--bg-table-alt); }

tbody tr:hover { background: var(--bg-card-hover); }

tbody td {
    padding: 12px 16px;
    color: var(--text-primary);
    vertical-align: middle;
}

td.muted { color: var(--text-secondary); font-size: 0.82rem; }

td.mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--accent);
    word-break: break-all;
}

/* ── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: capitalize;
    white-space: nowrap;
}

.badge-success   { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16,185,129,0.25); }
.badge-warning   { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245,158,11,0.25); }
.badge-danger    { background: var(--danger-bg);  color: var(--danger);  border: 1px solid rgba(239,68,68,0.25); }
.badge-info      { background: var(--info-bg);    color: var(--info);    border: 1px solid rgba(56,189,248,0.25); }
.badge-secondary { background: rgba(148,163,184,0.1); color: var(--text-secondary); border: 1px solid rgba(148,163,184,0.2); }
.badge-primary   { background: var(--primary-glow); color: var(--primary-light); border: 1px solid rgba(99,102,241,0.3); }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: var(--shadow-btn);
    border-color: var(--primary-dark);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: #fff;
    box-shadow: 0 6px 24px rgba(99,102,241,0.45);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #0891b2);
    color: #fff;
    border-color: #0891b2;
    box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-accent:hover { filter: brightness(1.1); color: #fff; }

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: #fff;
    border-color: #059669;
}
.btn-success:hover { filter: brightness(1.1); color: #fff; }

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(239,68,68,0.3);
}
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-secondary {
    background: rgba(148,163,184,0.08);
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-secondary:hover { background: rgba(148,163,184,0.15); color: var(--text-primary); }

.btn-sm { padding: 5px 12px; font-size: 0.8rem; }
.btn-lg { padding: 11px 24px; font-size: 1rem; }
.btn-icon { padding: 7px; width: 34px; height: 34px; justify-content: center; }

/* ── Forms ───────────────────────────────────────────────────────────────────── */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

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

label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.form-control {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 9px 13px;
    font-size: 0.875rem;
    font-family: inherit;
    transition: all var(--transition);
    width: 100%;
    appearance: none;
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder { color: var(--text-muted); }

.form-control[readonly] { opacity: 0.7; cursor: default; }

select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

.form-hint { font-size: 0.75rem; color: var(--text-muted); }

.form-actions {
    display: flex;
    gap: 10px;
    padding-top: 8px;
    flex-wrap: wrap;
}

/* Token display field */
.token-field {
    display: flex;
    gap: 8px;
    align-items: center;
}

.token-field .form-control {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.03em;
}

/* ── Alerts ──────────────────────────────────────────────────────────────────── */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 20px;
    border-left: 3px solid;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.alert-success { background: var(--success-bg); color: var(--success); border-color: var(--success); }
.alert-error   { background: var(--danger-bg);  color: var(--danger);  border-color: var(--danger); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-color: var(--warning); }
.alert-info    { background: var(--info-bg);    color: var(--info);    border-color: var(--info); }

/* ── Action Buttons Cell ─────────────────────────────────────────────────────── */
.action-cell {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* ── Empty State ─────────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.4; }

.empty-state p { font-size: 0.9rem; }

/* ── Divider ─────────────────────────────────────────────────────────────────── */
.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0;
}

/* ── Login Page ──────────────────────────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at 20% 40%, rgba(99,102,241,0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 70%, rgba(6,182,212,0.08) 0%, transparent 50%),
                var(--bg-root);
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo .logo-icon-lg {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 14px;
    box-shadow: 0 0 32px var(--primary-glow);
}

.login-logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.login-logo p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ── Collapsible Form Panel ──────────────────────────────────────────────────── */
.panel {
    background: rgba(99,102,241,0.04);
    border: 1px solid rgba(99,102,241,0.2);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    overflow: hidden;
}

.panel-header {
    padding: 15px 20px;
    font-size: 0.925rem;
    font-weight: 600;
    color: var(--primary-light);
    border-bottom: 1px solid rgba(99,102,241,0.15);
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-body { padding: 22px; }

/* ── Status Dot ──────────────────────────────────────────────────────────────── */
.status-dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    margin-right: 5px;
    animation: pulse-dot 2s infinite;
}

.status-dot.online  { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline { background: var(--text-muted); animation: none; }

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
}

/* ── Animations ──────────────────────────────────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.card, .stat-card { animation: fadeIn 0.25s ease both; }

/* ── Voucher PDF Preview Table ───────────────────────────────────────────────── */
.voucher-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
    margin-top: 16px;
}

.voucher-card {
    background: linear-gradient(135deg, var(--bg-card), #0f1c2d);
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 18px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
}

.voucher-card:hover {
    border-color: var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
}

.voucher-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.voucher-card .vc-profile {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.voucher-card .vc-cred {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.05em;
}

.voucher-card .vc-label {
    font-size: 0.68rem;
    color: var(--text-muted);
    margin-top: 2px;
    margin-bottom: 8px;
}

.voucher-card .vc-pass { color: var(--accent); }