:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --dark: #0f172a;
    --gray: #64748b;
    --light: #f1f5f9;
    --white: #ffffff;
    --sidebar-width: 280px;
    --header-height: 70px;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--white);
    min-height: 100vh;
    line-height: 1.6;
}

/* Login/Register Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

.auth-box {
    width: 100%;
    max-width: 420px;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--radius);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-logo {
    text-align: center;
    margin-bottom: 30px;
}

.auth-logo h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-logo p {
    color: var(--gray);
    margin-top: 8px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--light);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 8px;
    color: var(--white);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input::placeholder {
    color: var(--gray);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
}

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-warning {
    background: var(--warning);
    color: var(--dark);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.auth-footer {
    text-align: center;
    margin-top: 25px;
    color: var(--gray);
}

.auth-footer a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid var(--info);
    color: var(--info);
}

/* Sidebar Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(99, 102, 241, 0.2);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
}

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

.sidebar-brand h2 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.user-info {
    padding: 20px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
}

.user-balance {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(6, 182, 212, 0.2) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
}

.user-balance-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray);
    margin-bottom: 5px;
}

.user-balance-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
}

.nav-menu {
    padding: 20px 15px;
}

.nav-section {
    margin-bottom: 25px;
}

.nav-section-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray);
    margin-bottom: 12px;
    padding-left: 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: var(--light);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.3s ease;
}

.nav-item:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--white);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.nav-icon {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

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

.header {
    height: var(--header-height);
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-search {
    position: relative;
}

.header-search input {
    width: 300px;
    padding: 10px 15px 10px 40px;
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 8px;
    color: var(--white);
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

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

.header-user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
}

.header-user-info {
    text-align: right;
}

.header-user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.header-user-role {
    font-size: 0.75rem;
    color: var(--gray);
}

/* Page Content */
.page-content {
    padding: 30px;
}

.page-header {
    margin-bottom: 30px;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.page-subtitle {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius);
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.primary { background: rgba(99, 102, 241, 0.2); color: var(--primary); }
.stat-icon.success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.stat-icon.warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.stat-icon.danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.stat-info h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-info p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Cards */
.card {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-body {
    padding: 25px;
}

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

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

.data-table th,
.data-table td {
    padding: 15px 20px;
    text-align: left;
}

.data-table th {
    background: rgba(15, 23, 42, 0.8);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray);
}

.data-table tbody tr {
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    transition: background 0.3s ease;
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

.data-table td {
    font-size: 0.9rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary { background: rgba(99, 102, 241, 0.2); color: var(--primary-light); }
.badge-success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge-info { background: rgba(59, 130, 246, 0.2); color: var(--info); }
.badge-secondary { background: rgba(100, 116, 139, 0.2); color: var(--gray); }
.badge-dark { background: rgba(15, 23, 42, 0.8); color: var(--light); }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.service-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius);
    padding: 25px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 15px;
}

.service-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--primary-light);
}

.service-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
}

.service-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.service-desc {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.service-meta {
    display: flex;
    gap: 20px;
    font-size: 0.8rem;
    color: var(--gray);
}

.service-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

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

textarea.form-input {
    min-height: 120px;
    resize: vertical;
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--gray);
    pointer-events: none;
}

select.form-input {
    appearance: none;
    padding-right: 40px;
}

/* Payment Methods */
.payment-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.payment-method {
    position: relative;
    padding: 20px;
    background: rgba(30, 41, 59, 0.6);
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.payment-method:hover,
.payment-method.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.payment-method input {
    position: absolute;
    opacity: 0;
}

.payment-method-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.payment-method-title {
    font-weight: 600;
    margin-bottom: 5px;
}

.payment-method-desc {
    font-size: 0.8rem;
    color: var(--gray);
}

/* Order Progress */
.order-progress {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: 40px 0;
}

.order-progress::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: rgba(99, 102, 241, 0.2);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.progress-step-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 41, 59, 0.8);
    border: 2px solid rgba(99, 102, 241, 0.3);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.progress-step.active .progress-step-icon,
.progress-step.completed .progress-step-icon {
    background: var(--primary);
    border-color: var(--primary);
}

.progress-step.completed .progress-step-icon {
    background: var(--success);
    border-color: var(--success);
}

.progress-step-label {
    font-size: 0.8rem;
    color: var(--gray);
    font-weight: 500;
}

.progress-step.active .progress-step-label,
.progress-step.completed .progress-step-label {
    color: var(--white);
}

/* Ticket Chat */
.ticket-chat {
    max-height: 500px;
    overflow-y: auto;
    padding: 20px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 12px;
}

.chat-message {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.chat-message.own {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.chat-message.admin .chat-avatar {
    background: linear-gradient(135deg, var(--warning) 0%, var(--danger) 100%);
}

.chat-content {
    max-width: 70%;
}

.chat-bubble {
    padding: 15px;
    border-radius: 12px;
    background: rgba(30, 41, 59, 0.8);
    color: var(--light);
    line-height: 1.5;
}

.chat-message.own .chat-bubble {
    background: var(--primary);
    color: var(--white);
}

.chat-time {
    font-size: 0.75rem;
    color: var(--gray);
    margin-top: 5px;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .payment-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .header-search input {
        width: 200px;
    }
    
    .page-content {
        padding: 20px;
    }
}

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.5);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.modal {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}