:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #111638;
    --bg-card: #161b42;
    --bg-sidebar: #0d1130;
    --bg-input: #1a2050;
    --border-color: #1e2a6a;
    --border-light: #2a3580;
    --text-primary: #e8eaff;
    --text-secondary: #8892c4;
    --text-muted: #5a64a0;
    --accent-blue: #3b82f6;
    --accent-blue-dark: #2563eb;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-orange: #f59e0b;
    --accent-pink: #ec4899;
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

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

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-cyan);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-blue); }

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #0f1642 50%, #1a1060 100%);
    padding: 20px;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    max-width: 420px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.login-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(59,130,246,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.login-logo {
    font-size: 42px;
    margin-bottom: 8px;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

.telegram-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #0088cc, #0066aa);
    color: #fff;
    border: none;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
}

.telegram-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,136,204,0.3);
}

.telegram-btn svg {
    width: 24px;
    height: 24px;
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-brand-text {
    font-size: 20px;
    font-weight: 700;
}

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

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: var(--transition);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}

.nav-item:hover {
    background: rgba(59,130,246,0.1);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(139,92,246,0.15));
    color: var(--accent-blue);
    border: 1px solid rgba(59,130,246,0.2);
}

.nav-item svg, .nav-item i {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

.nav-item.active svg, .nav-item.active i {
    opacity: 1;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-credits {
    font-size: 12px;
    color: var(--accent-cyan);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
}

.topbar {
    height: 64px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

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

.topbar-title {
    font-size: 18px;
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
}

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

.credit-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(6,182,212,0.1);
    border: 1px solid rgba(6,182,212,0.2);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-cyan);
}

.page-content {
    padding: 24px;
    max-width: 1400px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

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

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

.card-title {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-icon.blue { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.stat-icon.green { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.stat-icon.purple { background: rgba(139,92,246,0.15); color: var(--accent-purple); }
.stat-icon.cyan { background: rgba(6,182,212,0.15); color: var(--accent-cyan); }
.stat-icon.orange { background: rgba(245,158,11,0.15); color: var(--accent-orange); }
.stat-icon.pink { background: rgba(236,72,153,0.15); color: var(--accent-pink); }

.stat-value {
    font-size: 24px;
    font-weight: 700;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}

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

.btn-secondary:hover {
    border-color: var(--accent-blue);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-green), #059669);
    color: #fff;
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-red), #dc2626);
    color: #fff;
}

.btn-cyan {
    background: linear-gradient(135deg, var(--accent-cyan), #0891b2);
    color: #fff;
}

.btn-purple {
    background: linear-gradient(135deg, var(--accent-purple), #7c3aed);
    color: #fff;
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

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

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
    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='%238892c4' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(0,0,0,0.2);
}

.table tbody tr:hover {
    background: rgba(59,130,246,0.05);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--accent-red); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--accent-orange); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.badge-purple { background: rgba(139,92,246,0.15); color: var(--accent-purple); }

/* Checker */
.checker-container {
    max-width: 800px;
}

.gateway-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.gateway-option {
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.gateway-option.selected {
    border-color: var(--accent-blue);
    background: rgba(59,130,246,0.1);
}

.gateway-option .icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.gateway-option .name {
    font-weight: 600;
    font-size: 14px;
}

.gateway-option .desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.result-box {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 20px;
    display: none;
}

.result-box.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

.result-box.approved {
    border-color: var(--accent-green);
    background: rgba(16,185,129,0.05);
}

.result-box.declined {
    border-color: var(--accent-red);
    background: rgba(239,68,68,0.05);
}

.result-box.error {
    border-color: var(--accent-orange);
    background: rgba(245,158,11,0.05);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Spin Wheel */
.spin-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.wheel-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
}

.wheel-pointer {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 16px solid transparent;
    border-right: 16px solid transparent;
    border-top: 28px solid var(--accent-red);
    z-index: 10;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.wheel-canvas {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 4px solid var(--border-light);
    box-shadow: var(--shadow-lg), inset 0 0 30px rgba(0,0,0,0.3);
}

.spin-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: 3px solid var(--bg-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(59,130,246,0.4);
}

.spin-btn:hover:not(:disabled) {
    transform: translate(-50%, -50%) scale(1.05);
}

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

.spin-info {
    text-align: center;
}

.spin-info .label {
    font-size: 13px;
    color: var(--text-secondary);
}

.spin-info .value {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-cyan);
}

.spin-result {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    display: none;
}

.spin-result.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

.spin-result .amount {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Announcements */
.announcement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 12px;
    border-left: 4px solid var(--accent-blue);
}

.announcement-card.info { border-left-color: var(--accent-blue); }
.announcement-card.success { border-left-color: var(--accent-green); }
.announcement-card.warning { border-left-color: var(--accent-orange); }
.announcement-card.danger { border-left-color: var(--accent-red); }

.announcement-title {
    font-weight: 600;
    margin-bottom: 6px;
}

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

.announcement-date {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Shop */
.shop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

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

.shop-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-blue);
}

.shop-card .icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.shop-card .name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.shop-card .desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.shop-card .price {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 16px;
}

/* API Page */
.api-key-display {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    word-break: break-all;
}

.api-key-display .key {
    flex: 1;
    user-select: all;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--accent-blue);
    cursor: pointer;
    padding: 4px;
    font-size: 16px;
}

/* Toast */
.toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 20px;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

.toast.success { border-left: 4px solid var(--accent-green); }
.toast.error { border-left: 4px solid var(--accent-red); }
.toast.info { border-left: 4px solid var(--accent-blue); }

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

/* Loading Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10,14,39,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .page-content {
        padding: 16px;
    }
    
    .topbar {
        padding: 0 16px;
    }
    
    .gateway-selector {
        grid-template-columns: 1fr;
    }
    
    .wheel-wrapper {
        width: 280px;
        height: 280px;
    }
    
    .shop-grid {
        grid-template-columns: 1fr;
    }
    
    .login-box {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .stat-value {
        font-size: 20px;
    }
}

/* Mobile sidebar overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
}

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

/* Animations */
.fade-in {
    animation: fadeIn 0.3s ease;
}

.slide-up {
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Auth Forms */
.auth-form {
    width: 100%;
}

.auth-form .form-input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.auth-form .form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

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

.auth-form .form-group {
    margin-bottom: 16px;
}

.auth-form .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.auth-form .btn-primary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
}