/* ============================================
   AI Generator SaaS - Premium Dark Theme
   Modern, Professional, Smart UI
   ============================================ */

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

:root {
    --bg-primary: #0a0a14;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: #151c2c;
    --bg-card-hover: #1a2332;
    --bg-glass: rgba(17, 24, 39, 0.8);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b;
    --warning-glow: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.15);
    --info: #3b82f6;
    --info-glow: rgba(59, 130, 246, 0.15);
    --border: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(99, 102, 241, 0.3);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow: 0 4px 24px rgba(0,0,0,0.2);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.08);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --sidebar-width: 270px;
}

/* ============ LIGHT THEME ============ */
:root[data-theme="light"] {
    --bg-primary: #f1f5f9;
    --bg-secondary: #ffffff;
    --bg-tertiary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-glow: rgba(99, 102, 241, 0.12);
    --border: rgba(15, 23, 42, 0.10);
    --border-light: rgba(15, 23, 42, 0.16);
    --border-accent: rgba(99, 102, 241, 0.35);
    --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 10px 40px rgba(15, 23, 42, 0.10);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.06);
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="light"] a:hover { color: var(--accent); }

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

html { font-size: 14px; scroll-behavior: smooth; color-scheme: dark; }
:root[data-theme="dark"] html, html[data-theme="dark"] { color-scheme: dark; }

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent-hover); text-decoration: none; transition: var(--transition); }
a:hover { color: #c4b5fd; }

img { max-width: 100%; height: auto; }

/* Typography */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); letter-spacing: -0.01em; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

/* Utility Classes */
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-accent { color: var(--accent-hover) !important; }
.mt-1 { margin-top: 12px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 12px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.fs-sm { font-size: 0.8rem; }
.d-flex { display: flex; }
.gap-1 { gap: 8px; }
.text-center { text-align: center; }

/* ============ LAYOUT ============ */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ============ SIDEBAR ============ */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    overflow-x: hidden;
    backdrop-filter: blur(20px);
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 14px;
}

.sidebar-header .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.sidebar-header .logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: contain;
}

.sidebar-header .system-name {
    font-size: 1.15rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: -0.02em;
}

.sidebar-nav { padding: 16px 12px; flex: 1; }

.sidebar-nav .nav-section {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    padding: 20px 14px 8px;
    font-weight: 700;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 2px;
    position: relative;
}

.sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    transform: translateX(2px);
}

.sidebar-nav a.active {
    background: var(--accent-glow);
    color: var(--accent-hover);
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--accent);
}

.sidebar-nav a .nav-icon {
    width: 22px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
    opacity: 0.8;
}

.sidebar-nav a.active .nav-icon { opacity: 1; }

.sidebar-close {
    display: none;
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    z-index: 10;
}

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

/* ============ MAIN CONTENT ============ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

/* ============ TOP BAR ============ */
.topbar {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 28px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.menu-toggle:hover { background: var(--bg-card); border-color: var(--border-light); }

.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover { background: var(--bg-card); border-color: var(--border-light); color: var(--text-primary); }

.topbar-title {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

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

.topbar-balance {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--success-glow);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.topbar-balance i { color: var(--success); }
.topbar-balance .amount { color: var(--success); }

.topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
    border: 1px solid transparent;
}

.topbar-user:hover { background: rgba(255,255,255,0.04); border-color: var(--border); }

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    min-width: 220px;
    padding: 8px;
    box-shadow: var(--shadow-lg);
    display: none;
    z-index: 200;
    backdrop-filter: blur(20px);
}

.user-dropdown.show { display: block; animation: fadeSlideDown 0.2s ease; }

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

.user-dropdown a:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
}

.user-dropdown .divider {
    height: 1px;
    background: var(--border);
    margin: 6px 0;
}

.user-dropdown a.danger { color: var(--danger); }
.user-dropdown a.danger:hover { background: var(--danger-glow); }

/* ============ PAGE CONTENT ============ */
.page-content {
    padding: 28px;
    flex: 1;
    max-width: 1400px;
    width: 100%;
}

/* ============ CARDS ============ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
}

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

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

.card-title {
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ============ STATS GRID ============ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99,102,241,0.04) 0%, transparent 70%);
    transform: translate(30%, -30%);
}

.stat-card:hover {
    border-color: var(--border-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-card .stat-info { flex: 1; min-width: 0; }

.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.stat-card .stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    font-family: var(--font);
    letter-spacing: -0.01em;
    position: relative;
    overflow: hidden;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover { 
    transform: translateY(-1px); 
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    color: #fff; 
}

.btn-success { background: var(--success); color: #fff; box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25); }
.btn-success:hover { background: #059669; color: #fff; transform: translateY(-1px); }

.btn-danger { background: var(--danger); color: #fff; box-shadow: 0 4px 14px rgba(239, 68, 68, 0.25); }
.btn-danger:hover { background: #dc2626; color: #fff; transform: translateY(-1px); }

.btn-warning { background: var(--warning); color: #000; box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25); }
.btn-warning:hover { background: #d97706; transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent-hover); background: var(--accent-glow); }

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 14px;
}
.btn-ghost:hover { background: rgba(255,255,255,0.04); color: var(--text-primary); }

.btn-sm { padding: 7px 14px; font-size: 0.8rem; border-radius: 8px; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-block { width: 100%; }

/* ============ FORMS ============ */
.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.form-control,
input[type="text"].form-control,
input[type="email"].form-control,
input[type="password"].form-control,
input[type="number"].form-control,
input[type="url"].form-control {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-tertiary) !important;
    background: var(--bg-tertiary) !important;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary) !important;
    font-size: 0.9rem;
    font-family: var(--font);
    transition: var(--transition);
    font-weight: 400;
    -webkit-appearance: none;
}

.form-control:focus,
input.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px rgba(99, 102, 241, 0.05);
    background-color: var(--bg-card) !important;
    background: var(--bg-card) !important;
}

.form-control::placeholder { color: var(--text-muted); font-weight: 400; }

/* Chrome autofill override */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px var(--bg-tertiary) inset !important;
    -webkit-text-fill-color: var(--text-primary) !important;
    background-color: var(--bg-tertiary) !important;
    border-color: var(--border) !important;
    transition: background-color 5000s ease-in-out 0s;
    caret-color: var(--text-primary);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.7;
}

.form-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* ============ TABLES ============ */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

table thead { background: var(--bg-tertiary); }

table th {
    padding: 14px 18px;
    text-align: left;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 1px;
    white-space: nowrap;
}

table td {
    padding: 14px 18px;
    border-top: 1px solid var(--border);
    vertical-align: middle;
    color: var(--text-secondary);
    font-weight: 400;
}

table tbody tr { transition: var(--transition); }
table tbody tr:hover { background: rgba(99, 102, 241, 0.03); }

/* ============ BADGES ============ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.badge-success { background: var(--success-glow); color: var(--success); border: 1px solid rgba(16,185,129,0.2); }
.badge-danger { background: var(--danger-glow); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }
.badge-warning { background: var(--warning-glow); color: var(--warning); border: 1px solid rgba(245,158,11,0.2); }
.badge-info { background: var(--info-glow); color: var(--info); border: 1px solid rgba(59,130,246,0.2); }
.badge-secondary { background: rgba(148,163,184,0.1); color: var(--text-secondary); border: 1px solid rgba(148,163,184,0.15); }

/* ============ ALERTS ============ */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.alert-info { background: var(--info-glow); border: 1px solid rgba(59,130,246,0.2); color: var(--info); }
.alert-success { background: var(--success-glow); border: 1px solid rgba(16,185,129,0.2); color: var(--success); }
.alert-warning { background: var(--warning-glow); border: 1px solid rgba(245,158,11,0.2); color: var(--warning); }
.alert-danger { background: var(--danger-glow); border: 1px solid rgba(239,68,68,0.2); color: var(--danger); }

/* ============ ANNOUNCEMENTS ============ */
.announcement {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    font-size: 0.85rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    animation: fadeSlideDown 0.3s ease;
}

.announcement .ann-title { font-weight: 700; margin-bottom: 4px; }

/* ============ TOAST ============ */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.85rem;
    min-width: 300px;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
    cursor: pointer;
    font-weight: 500;
    backdrop-filter: blur(20px);
}

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

/* ============ MODAL ============ */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show { opacity: 1; visibility: visible; }

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    max-width: 540px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95) translateY(10px);
    transition: var(--transition);
}

.modal-overlay.show .modal { transform: scale(1) translateY(0); }

.modal-header {
    padding: 24px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 1.1rem; font-weight: 700; }

.modal-close {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    line-height: 1;
    transition: var(--transition);
}

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

.modal-body { padding: 28px; }

.modal-footer {
    padding: 20px 28px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ============ PAGINATION ============ */
.pagination {
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
}

.page-link:hover { background: var(--accent-glow); color: var(--accent-hover); border-color: var(--border-accent); }
.page-link.active { background: var(--accent-gradient); color: #fff; border: none; font-weight: 700; box-shadow: 0 2px 8px rgba(99,102,241,0.3); }

/* ============ SKELETON LOADING ============ */
.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--border) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text { height: 14px; margin-bottom: 8px; }
.skeleton-title { height: 22px; width: 60%; margin-bottom: 12px; }
.skeleton-card { height: 120px; }
.skeleton-avatar { width: 40px; height: 40px; border-radius: 50%; }

/* ============ EMPTY STATE ============ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    opacity: 0.3;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.empty-state p {
    font-size: 0.85rem;
    max-width: 400px;
    margin: 0 auto 24px;
    line-height: 1.6;
}

/* ============ SERVICE CARDS ============ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow), var(--shadow-glow);
    color: inherit;
}

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

.service-card .service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 18px;
}

.service-card h3 { font-size: 1.1rem; margin-bottom: 8px; }

.service-card p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.6;
}

.service-card .service-rate {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-hover);
}

/* ============ WALLET ============ */
.wallet-display {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(135deg, rgba(99,102,241,0.08) 0%, rgba(139,92,246,0.05) 100%);
    border-radius: var(--radius);
    border: 1px solid var(--border-accent);
}

.wallet-display .balance-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    font-weight: 600;
}

.wallet-display .balance-amount {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #10b981, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
    letter-spacing: -0.03em;
}

.wallet-display .balance-currency {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ============ TOPUP PACKAGES ============ */
.topup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 14px;
}

.topup-package {
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.topup-package:hover,
.topup-package.selected {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.topup-package .pkg-name {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    font-weight: 600;
}

.topup-package .pkg-amount {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.topup-package .pkg-bonus {
    font-size: 0.78rem;
    color: var(--success);
    font-weight: 600;
}

/* ============ RESULT DISPLAY ============ */
.result-box {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
    margin-top: 16px;
}

.result-box pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-primary);
    margin: 0;
}

.result-box .copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 14px;
    font-size: 0.75rem;
}

.result-image {
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.result-video {
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: #000;
    display: block;
}

/* ============ QUEUE STATUS ============ */
.queue-status {
    text-align: center;
    padding: 50px 20px;
}

.queue-status .spinner {
    width: 52px;
    height: 52px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 24px;
}

.queue-status .queue-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============ LOW BALANCE WARNING ============ */
.low-balance-warning {
    background: var(--warning-glow);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: var(--radius-sm);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.88rem;
    color: var(--warning);
    margin-bottom: 20px;
    font-weight: 500;
}

/* ============ FILTER BAR ============ */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-bar .form-control {
    max-width: 200px;
    padding: 10px 14px;
    font-size: 0.85rem;
}

.search-input { position: relative; }

.search-input input { padding-left: 40px; }

.search-input .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* ============ CHART ============ */
.chart-container {
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: 24px;
    min-height: 220px;
    display: flex;
    align-items: flex-end;
    gap: 10px;
    justify-content: space-between;
    border: 1px solid var(--border);
}

.chart-bar {
    flex: 1;
    background: var(--accent-gradient);
    border-radius: 6px 6px 0 0;
    min-width: 24px;
    transition: var(--transition);
    position: relative;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
}

.chart-bar:hover { opacity: 0.85; filter: brightness(1.1); }

.chart-bar .chart-label {
    position: absolute;
    bottom: -28px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: var(--text-muted);
    white-space: nowrap;
    font-weight: 600;
}

.chart-bar .chart-value {
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.72rem;
    color: var(--text-secondary);
    white-space: nowrap;
    font-weight: 600;
}

/* ============ TABS ============ */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
    overflow-x: auto;
}

.tab {
    padding: 12px 24px;
    color: var(--text-muted);
    font-size: 0.88rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: var(--font);
    font-weight: 500;
}

.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent-hover); border-bottom-color: var(--accent); font-weight: 700; }

/* ============ CODE BLOCK ============ */
.code-block {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    overflow-x: auto;
    position: relative;
}

.code-block code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.8rem;
    line-height: 1.8;
    color: #e6edf3;
}

/* ============ AUTH PAGES ============ */
.auth-wrapper {
    min-height: 100vh;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 24px;
    background: #0a0a14;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.auth-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(99,102,241,0.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(139,92,246,0.05) 0%, transparent 40%);
    pointer-events: none;
}

.auth-card {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-light);
    border-radius: 24px;
    padding: 48px 40px;
    width: 100%;
    max-width: 460px !important;
    margin: 0 auto;
    box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 40px rgba(99, 102, 241, 0.08);
    position: relative;
    z-index: 1;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.auth-card .auth-logo {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.auth-card .auth-header {
    text-align: center;
    margin-bottom: 36px;
}

.auth-card .auth-header h1 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.auth-card .auth-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 400;
}

.auth-card .form-control {
    padding: 14px 18px;
    font-size: 0.95rem;
    border-radius: 12px;
    background: var(--bg-tertiary);
}

.auth-card .btn-primary {
    padding: 14px 28px;
    font-size: 1rem;
    border-radius: 12px;
}

.auth-card .auth-footer {
    text-align: center;
    margin-top: 28px;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.checkbox-group input[type="checkbox"] {
    accent-color: var(--accent);
    width: 17px;
    height: 17px;
    cursor: pointer;
}

.checkbox-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
}

/* ============ INSTALL PAGE ============ */
.install-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--bg-primary);
}

.install-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    width: 100%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
}

/* ============ ANIMATIONS ============ */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeSlideDown {
    from { transform: translateY(-8px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    :root { --sidebar-width: 0px; }

    .sidebar {
        transform: translateX(-100%);
        width: 300px;
    }

    .sidebar.open { transform: translateX(0); }
    .sidebar-close { display: block; }
    .menu-toggle { display: flex; }
    .main-content { margin-left: 0; }
    .page-content { padding: 18px; }
    .topbar { padding: 0 16px; }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card { padding: 16px; gap: 12px; }
    .stat-card .stat-value { font-size: 1.2rem; }
    .stat-card .stat-icon { width: 40px; height: 40px; font-size: 1rem; }

    .filter-bar { flex-direction: column; align-items: stretch; }
    .filter-bar .form-control { max-width: 100%; }
    .service-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .service-card { padding: 16px; }
    .service-card .service-icon { width: 44px; height: 44px; font-size: 1.1rem; }
    .service-card h3 { font-size: 0.95rem; }
    .topup-grid { grid-template-columns: repeat(2, 1fr); }
    .wallet-display .balance-amount { font-size: 2.2rem; }

    table { font-size: 0.8rem; }
    table th, table td { padding: 10px 14px; }

    .form-row { grid-template-columns: 1fr; }
    .auth-card { padding: 32px 24px; }
    .modal { margin: 10px; }
    .toast-container { top: 10px; right: 10px; left: 10px; }
    .toast { min-width: auto; }

    /* Prevent horizontal overflow and let headers/actions wrap on small screens */
    .page-content { max-width: 100%; overflow-x: hidden; }
    .card { padding: 18px; }
    .card-header { flex-wrap: wrap; gap: 8px; }
    .flex-between { flex-wrap: wrap; gap: 10px; }
    .card-header .d-flex { flex-wrap: wrap; }
    table { min-width: 520px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .topup-grid { grid-template-columns: 1fr; }
    .topbar-balance { display: none; }
    h1 { font-size: 1.3rem; }
}

/* ============ SIDEBAR OVERLAY ============ */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 99;
}

.sidebar-overlay.show { display: block; }

/* ============ PRINT ============ */
@media print {
    .sidebar, .topbar, .menu-toggle, .btn { display: none !important; }
    .main-content { margin-left: 0 !important; }
    body { background: #fff; color: #000; }
    .card { border: 1px solid #ddd; box-shadow: none; }
}