:root {
    --primary: #eb5c20;
    --primary-rgb: 235, 92, 32;
    --on-primary: #ffffff;
    --primary-dark: #c44a18;
    --primary-light: #ff7a3d;

    --bg-primary: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #242424;
    --bg-card: #1e1e1e;
    --bg-hover: #2a2a2a;

    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #737373;

    --border-color: #333333;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.5);
    --shadow-xl: 0 16px 32px rgba(0,0,0,0.6);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --transition-base: 250ms ease;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 2rem;
}

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

body {
    font-family: 'Vazirmatn', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Topbar */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-xl);
}

.logo b {
    color: var(--primary);
    font-weight: 700;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.hamburger {
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

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

/* Sidebar */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 150;
}

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

.sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background: var(--bg-secondary);
    transform: translateX(100%);
    transition: var(--transition-base);
    z-index: 200;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

.sidebar.active {
    transform: translateX(0);
}

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

.sidebar-close {
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.sidebar-close:hover {
    background: var(--bg-hover);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.version-info {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.admin-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: rgba(var(--primary-rgb), 0.2);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: var(--font-sm);
    font-weight: 600;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: 4px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
}

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

.sidebar-item.active {
    background: rgba(var(--primary-rgb), 0.15);
    color: var(--primary);
}

/* Main Content */
.main-content {
    margin-top: 60px;
    margin-bottom: 70px;
    padding: var(--spacing-lg) 0;
    min-height: calc(100vh - 130px);
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.card-header {
    font-size: var(--font-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: var(--font-base);
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    font-family: inherit;
    min-height: 44px;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: scale(0.98);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: rgba(var(--primary-rgb), 0.1);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
}

.btn-ghost:hover {
    background: var(--bg-hover);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-sm);
    min-height: 36px;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-base);
    transition: var(--transition-base);
}

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

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

.form-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

select.form-input {
    cursor: pointer;
}

.form-help {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

/* OTP Input */
.otp-container {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.otp-input {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: var(--font-2xl);
    font-weight: 600;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition-base);
}

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

/* Timer */
.timer {
    text-align: center;
    font-size: var(--font-lg);
    color: var(--primary);
    font-weight: 600;
    margin: var(--spacing-md) 0;
}

.timer.expired {
    color: #ef4444;
}

/* Counter */
.char-counter {
    text-align: left;
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.char-counter.warning {
    color: #fbbf24;
}

.char-counter.danger {
    color: #ef4444;
}

/* Table */
.table-wrapper {
    overflow-x: auto;
    margin-top: var(--spacing-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
}

th, td {
    padding: var(--spacing-md);
    text-align: right;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--bg-tertiary);
    font-weight: 600;
    white-space: nowrap;
}

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

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

/* Search & Filter */
.search-box {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-box input {
    padding-right: 40px;
}

.search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
}

.badge-warning {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-base);
    font-family: inherit;
}

.page-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: var(--on-primary);
    border-color: var(--primary);
}

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

/* Toast */
.toast-container {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 400;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 300px;
    animation: slideInDown 0.3s ease;
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--on-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.btn .spinner {
    margin-left: var(--spacing-sm);
}

/* Loading */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
}

.loading .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--primary);
    margin: 0 auto var(--spacing-md);
}

/* Bottom Nav */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 100;
    box-shadow: 0 -4px 8px rgba(0,0,0,0.4);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    transition: var(--transition-base);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    min-width: 60px;
}

.nav-item:hover {
    color: var(--text-primary);
}

.nav-item.active {
    color: var(--primary);
}

.nav-item svg {
    width: 24px;
    height: 24px;
}

.fab {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--on-primary);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition-base);
    margin-top: -28px;
    border: 4px solid var(--bg-primary);
}

.fab:hover {
    transform: scale(1.1) rotate(90deg);
}

.fab svg {
    width: 28px;
    height: 28px;
}

/* Auth */
.auth-container {
    min-height: calc(100vh - 130px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-card {
    max-width: 500px;
    width: 100%;
    min-width: 400px;
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo svg {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
}

.stat-value {
    font-size: var(--font-2xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-sm);
    color: var(--text-muted);
}

/* Gauge */
.gauge-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl) 0;
    position: relative;
}

.gauge {
    position: relative;
    width: 200px;
    height: 120px;
}

.gauge-value {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-2xl);
    font-weight: 700;
    color: var(--primary);
}

.gauge-label {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-md);
}

.gauge-credit {
    font-size: var(--font-base);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.gauge-needle {
    transform-origin: 100px 100px;
    transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Service Grid */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    justify-items: center;
}

.service-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-base);
    border: 1px solid transparent;
    width: 100%;
    max-width: 120px;
}

.service-item:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.service-icon {
    width: 48px;
    height: 48px;
    background: rgba(var(--primary-rgb), 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.service-name {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    text-align: center;
}

/* Info Box */
.info-box {
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.info-box p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

/* Alert */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
}

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    border-right: 4px solid #22c55e;
    color: #22c55e;
}

.alert-warning {
    background: rgba(251, 191, 36, 0.15);
    border-right: 4px solid #fbbf24;
    color: #fbbf24;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    border-right: 4px solid #ef4444;
    color: #ef4444;
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    border-right: 4px solid #3b82f6;
    color: #3b82f6;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

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

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition-base);
}

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

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

.modal-title {
    font-size: var(--font-xl);
    font-weight: 600;
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-start;
}

/* Utility */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.w-full { width: 100%; }

.hidden { display: none !important; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 85%;
    }

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

    .otp-input {
        width: 45px;
        height: 55px;
        font-size: var(--font-xl);
    }

    .modal {
        width: 95%;
    }

    table {
        font-size: var(--font-sm);
    }

    th, td {
        padding: var(--spacing-sm);
    }
}