/* ═══════════════════════════════════════════════════════════════
   PayHub Admin Panel — Design System
   Dark mode, Glassmorphism, Premium UI
═══════════════════════════════════════════════════════════════ */

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

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
    --bg-primary:    #0d0f1a;
    --bg-secondary:  #141627;
    --bg-card:       rgba(255,255,255,0.04);
    --bg-card-hover: rgba(255,255,255,0.07);
    --bg-sidebar:    #0f1123;
    --border-color:  rgba(255,255,255,0.08);
    --border-glow:   rgba(99,102,241,0.4);

    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:     #64748b;

    --accent-1: #6366f1;  /* indigo */
    --accent-2: #8b5cf6;  /* violet */
    --accent-3: #06b6d4;  /* cyan */
    --accent-4: #10b981;  /* emerald */
    --accent-5: #f59e0b;  /* amber */
    --accent-danger: #ef4444;
    --accent-warning: #f59e0b;

    --gradient-brand:   linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
    --gradient-card:    linear-gradient(135deg, rgba(99,102,241,0.15) 0%, rgba(139,92,246,0.08) 100%);
    --gradient-danger:  linear-gradient(135deg, #ef4444, #dc2626);
    --gradient-success: linear-gradient(135deg, #10b981, #059669);
    --gradient-amber:   linear-gradient(135deg, #f59e0b, #d97706);
    --gradient-cyan:    linear-gradient(135deg, #06b6d4, #0891b2);

    --shadow-card: 0 4px 24px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 30px rgba(99,102,241,0.15);
    --shadow-hover: 0 8px 32px rgba(0,0,0,0.5);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --sidebar-width: 260px;
    --topbar-height: 64px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
    height: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

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

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
}

.sidebar-logo-icon {
    width: 40px; height: 40px;
    background: var(--gradient-brand);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(99,102,241,0.4);
}

.sidebar-logo-text {
    display: flex;
    flex-direction: column;
}

.sidebar-logo-text .brand-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-logo-text .brand-sub {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-section-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 12px 10px 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    transition: all var(--transition);
    position: relative;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(99,102,241,0.15);
    color: var(--accent-1);
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--gradient-brand);
    border-radius: 0 2px 2px 0;
}

.nav-item .nav-icon {
    font-size: 16px;
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-item .nav-badge {
    margin-left: auto;
    background: var(--accent-danger);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.sidebar-footer {
    padding: 12px 10px;
    border-top: 1px solid var(--border-color);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    cursor: pointer;
    transition: all var(--transition);
}

.user-card:hover { background: var(--bg-card-hover); }

.user-avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--gradient-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.user-info { flex: 1; overflow: hidden; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-muted); }

/* ── Main Layout ────────────────────────────────────────────── */
.main-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: rgba(13,15,26,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 28px;
    gap: 16px;
    z-index: 50;
}

.topbar-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.topbar-subtitle {
    font-size: 12px;
    color: var(--text-muted);
}

.topbar-spacer { flex: 1; }

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar-btn {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 16px;
}

.topbar-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-glow);
}

.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent-4);
    box-shadow: 0 0 8px rgba(16,185,129,0.6);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 8px rgba(16,185,129,0.6); }
    50% { box-shadow: 0 0 14px rgba(16,185,129,0.9); }
}

.page-content {
    flex: 1;
    padding: 28px;
}

/* ── Cards & Glassmorphism ──────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.card:hover {
    border-color: rgba(255,255,255,0.12);
    box-shadow: var(--shadow-card);
}

.card-glass {
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
}

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

.card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

.card-body { padding: 22px; }

/* ── Stat Cards ─────────────────────────────────────────────── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
    cursor: default;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--stat-gradient, var(--gradient-brand));
    opacity: 0;
    transition: opacity var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    border-color: rgba(255,255,255,0.12);
}

.stat-card:hover::before { opacity: 1; }

.stat-card-inner { display: flex; align-items: flex-start; justify-content: space-between; }

.stat-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    background: var(--stat-gradient, var(--gradient-brand));
    box-shadow: 0 4px 14px rgba(99,102,241,0.25);
}

.stat-content { flex: 1; }

.stat-value {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.8px;
    line-height: 1.1;
    margin-top: 12px;
}

.stat-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.stat-change {
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.up { color: var(--accent-4); }
.stat-change.down { color: var(--accent-danger); }

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

thead tr {
    border-bottom: 1px solid var(--border-color);
}

thead th {
    padding: 11px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    white-space: nowrap;
}

tbody tr {
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: background var(--transition);
}

tbody tr:hover { background: rgba(255,255,255,0.03); }
tbody tr:last-child { border-bottom: none; }

tbody td {
    padding: 13px 16px;
    color: var(--text-primary);
    vertical-align: middle;
}

/* ── Badges ─────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.badge::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    background: currentColor;
}

.badge-success  { background: rgba(16,185,129,0.15);  color: #34d399; }
.badge-danger   { background: rgba(239,68,68,0.15);   color: #f87171; }
.badge-warning  { background: rgba(245,158,11,0.15);  color: #fbbf24; }
.badge-info     { background: rgba(6,182,212,0.15);   color: #22d3ee; }
.badge-secondary{ background: rgba(148,163,184,0.15); color: #94a3b8; }
.badge-purple   { background: rgba(139,92,246,0.15);  color: #a78bfa; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-brand);
    color: white;
    box-shadow: 0 4px 14px rgba(99,102,241,0.35);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.5);
    color: white;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: rgba(255,255,255,0.15);
}

.btn-danger {
    background: var(--gradient-danger);
    color: white;
    box-shadow: 0 4px 14px rgba(239,68,68,0.3);
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(239,68,68,0.5);
}

.btn-sm { padding: 5px 11px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }

.btn:disabled, .btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ── Forms ──────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 9px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13.5px;
    font-family: inherit;
    transition: all var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-1);
    background: rgba(99,102,241,0.05);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

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

select.form-control option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* ── Modals ─────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.15s ease;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 480px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.6);
    animation: slideUp 0.2s ease;
}

.modal-lg { max-width: 680px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    transition: all var(--transition);
}

.modal-close:hover { background: var(--bg-card-hover); color: var(--text-primary); }

.modal-body { padding: 24px; }

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ── Toasts ─────────────────────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 30px rgba(0,0,0,0.4);
    min-width: 300px;
    max-width: 400px;
    pointer-events: all;
    animation: slideInRight 0.3s ease;
}

.toast-icon { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.toast-content { flex: 1; }
.toast-title { font-size: 13px; font-weight: 700; color: var(--text-primary); }
.toast-message { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.toast-success { border-left: 3px solid var(--accent-4); }
.toast-error   { border-left: 3px solid var(--accent-danger); }
.toast-warning { border-left: 3px solid var(--accent-warning); }
.toast-info    { border-left: 3px solid var(--accent-3); }

/* ── Loading ────────────────────────────────────────────────── */
.loading-spinner {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.15);
    border-top-color: var(--accent-1);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 60px;
    color: var(--text-muted);
    font-size: 14px;
}

/* ── Page Header ────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.page-header-left h1 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.page-header-left p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 3px;
}

/* ── Search ─────────────────────────────────────────────────── */
.search-box {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.search-box .search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 14px;
    pointer-events: none;
}

.search-box input {
    padding-left: 36px;
    width: 260px;
}

/* ── Divider ────────────────────────────────────────────────── */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: 20px 0;
}

/* ── Copy button ────────────────────────────────────────────── */
.copy-field {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--text-secondary);
    overflow: hidden;
}

.copy-field .copy-value {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--accent-1);
    cursor: pointer;
    font-size: 14px;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all var(--transition);
    flex-shrink: 0;
}
.copy-btn:hover { background: rgba(99,102,241,0.15); }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeIn    { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp   { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes spin      { to { transform: rotate(360deg); } }
@keyframes shimmer   {
    0%   { background-position: -200% 0; }
    100% { background-position:  200% 0; }
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* ── Utilities ──────────────────────────────────────────────── */
.text-primary   { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-muted) !important; }
.text-success   { color: var(--accent-4) !important; }
.text-danger    { color: var(--accent-danger) !important; }
.text-warning   { color: var(--accent-warning) !important; }
.text-accent    { color: var(--accent-1) !important; }

.fw-bold   { font-weight: 700 !important; }
.fw-medium { font-weight: 500 !important; }

.font-mono { font-family: 'Courier New', monospace; }

.d-flex { display: flex !important; }
.align-center { align-items: center !important; }
.gap-8  { gap: 8px !important; }
.gap-12 { gap: 12px !important; }
.gap-16 { gap: 16px !important; }
.mb-0   { margin-bottom: 0 !important; }
.mb-8   { margin-bottom: 8px !important; }
.mb-16  { margin-bottom: 16px !important; }
.mb-24  { margin-bottom: 24px !important; }

.mt-auto { margin-top: auto !important; }

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Blazor validation */
.blazor-error-boundary { display: none; }

/* Error page */
#blazor-error-ui {
    background: rgba(239,68,68,0.1);
    border-top: 2px solid var(--accent-danger);
    color: var(--text-primary);
    padding: 12px 20px;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 9999;
    display: none;
}

#blazor-error-ui .reload { color: var(--accent-3); cursor: pointer; text-decoration: underline; }
#blazor-error-ui .dismiss { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); cursor: pointer; }
/* ── Detail Modal Tabs & Panels ─────────────────────────────── */
.modal-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
    padding-bottom: 2px;
}

.modal-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 16px;
    cursor: pointer;
    position: relative;
    transition: all var(--transition);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.modal-tab:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.03);
}

.modal-tab.active {
    color: var(--accent-1);
}

.modal-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
    border-radius: 2px;
}

.dev-sub-tabs {
    display: flex;
    gap: 4px;
    background: rgba(0,0,0,0.2);
    padding: 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 12px;
}

.dev-sub-tab {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.dev-sub-tab:hover {
    color: var(--text-primary);
}

.dev-sub-tab.active {
    background: var(--accent-1);
    color: white;
    box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}

.code-container {
    position: relative;
    background: #090a12;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 8px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    line-height: 1.5;
    overflow-x: auto;
    max-height: 350px;
}

.code-container pre {
    margin: 0;
    padding: 0;
    color: #e2e8f0;
}

.code-container .copy-code-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: all var(--transition);
}

.code-container .copy-code-btn:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
    border-color: var(--border-glow);
}

.env-toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-bottom: 20px;
}

.env-badge-group {
    display: flex;
    gap: 8px;
}

.env-badge-btn {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.env-badge-btn.active.test {
    background: rgba(245,158,11,0.15);
    color: #fbbf24;
    border-color: rgba(245,158,11,0.4);
    box-shadow: 0 0 12px rgba(245,158,11,0.1);
}

.env-badge-btn.active.live {
    background: rgba(16,185,129,0.15);
    color: #34d399;
    border-color: rgba(16,185,129,0.4);
    box-shadow: 0 0 12px rgba(16,185,129,0.1);
}

/* Responsive */
@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); }
    .main-wrapper { margin-left: 0; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .stat-grid { grid-template-columns: 1fr; }
    .page-content { padding: 16px; }
}