/* ========================================
   Octane Management System - Main Stylesheet
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --danger: #ef4444;
    --danger-dark: #dc2626;
    --warning: #f59e0b;
    --warning-dark: #d97706;
    --info: #06b6d4;
    --dark: #1e293b;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.2s ease;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Vazirmatn", 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    direction: rtl;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 260px;
    height: 100vh;
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
    z-index: 1000;
    overflow-y: auto;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.sidebar-header h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.sidebar-header h2 .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-header p {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}

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

.nav-section-title {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--gray-500);
    padding: 12px 12px 8px;
    letter-spacing: 1px;
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--gray-300);
    transition: var(--transition);
    margin-bottom: 2px;
    cursor: pointer;
    font-size: 14px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: var(--white);
}

.nav-item.active {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.nav-item .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.nav-item .nav-badge {
    margin-right: auto;
    margin-left: 0;
    background: var(--danger);
    color: var(--white);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

/* ===== Main Content ===== */
.main-content {
    margin-right: 260px;
    min-height: 100vh;
}

/* ===== Top Bar ===== */
.topbar {
    background: var(--white);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-title h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
}

.topbar-title p {
    font-size: 13px;
    color: var(--gray-500);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ===== Page Content ===== */
.page-content {
    padding: 32px;
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
}

.stat-card.blue::before { background: var(--primary); }
.stat-card.green::before { background: var(--secondary); }
.stat-card.orange::before { background: var(--warning); }
.stat-card.red::before { background: var(--danger); }
.stat-card.purple::before { background: #6366f1; }

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-card.blue .stat-card-icon { background: var(--primary-light); color: var(--primary); }
.stat-card.green .stat-card-icon { background: #d1fae5; color: var(--secondary); }
.stat-card.orange .stat-card-icon { background: #fef3c7; color: var(--warning); }
.stat-card.red .stat-card-icon { background: #fee2e2; color: var(--danger); }
.stat-card.purple .stat-card-icon { background: #ede9fe; color: #6366f1; }

.stat-card-label {
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 500;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--gray-900);
    margin-top: 4px;
}

.stat-card-sub {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}

/* ===== Card Component ===== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--gray-50);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
}

.card-body {
    padding: 24px;
}

.card-body-no-padding {
    padding: 0;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
    line-height: 1.4;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); }

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

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

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

.btn-outline {
    background: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}
.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--gray-800);
    background: var(--white);
    transition: var(--transition);
    direction: rtl;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

.form-control::placeholder {
    color: var(--gray-400);
}

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='%2364748b' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 12px center;
    padding-left: 32px;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-inline {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-inline .form-group {
    margin-bottom: 0;
}

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

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

.table thead {
    background: var(--gray-50);
}

.table thead th {
    padding: 14px 16px;
    text-align: right;
    font-size: 12px;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.table tbody td {
    padding: 14px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

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

.table-actions {
    display: flex;
    gap: 6px;
}

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #cffafe;
    color: #155e75;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.badge-gray {
    background: var(--gray-100);
    color: var(--gray-600);
}

/* ===== Search & Filter Bar ===== */
.filter-bar {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

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

.search-box .search-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

/* ===== Modal ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--gray-100);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    transition: var(--transition);
    font-size: 18px;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 12px;
    justify-content: flex-start;
    background: var(--gray-50);
}

/* ===== Alerts ===== */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: #cffafe;
    color: #155e75;
    border: 1px solid #a5f3fc;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
}

.empty-state .empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 20px;
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 24px;
    gap: 4px;
}

.tab {
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ===== Grid Layouts ===== */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* ===== Customer Balance Card ===== */
.balance-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
}

.balance-card h4 {
    font-size: 13px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.balance-card .balance-amount {
    font-size: 28px;
    font-weight: 800;
}

.balance-card .balance-label {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 4px;
}

/* ===== Quick Actions ===== */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 32px;
}

.quick-action-btn {
    background: var(--white);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.quick-action-btn:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.quick-action-btn .qa-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.quick-action-btn .qa-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
}

/* ===== Recent Sales ===== */
.recent-sale-item {
    display: flex;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-100);
    gap: 14px;
}

.recent-sale-item:last-child {
    border-bottom: none;
}

.recent-sale-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.recent-sale-info {
    flex: 1;
}

.recent-sale-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
}

.recent-sale-info p {
    font-size: 12px;
    color: var(--gray-500);
}

.recent-sale-amount {
    text-align: left;
}

.recent-sale-amount .amount {
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-800);
}

.recent-sale-amount .time {
    font-size: 11px;
    color: var(--gray-400);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 24px;
}

.pagination button {
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-300);
    background: var(--white);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--gray-700);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination button:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.pagination button.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination .page-info {
    padding: 0 16px;
    font-size: 13px;
    color: var(--gray-500);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--gray-400);
    font-size: 13px;
    border-top: 1px solid var(--gray-200);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .sidebar {
        width: 220px;
    }
    .main-content {
        margin-right: 220px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-right: 0;
    }
    
    .page-content {
        padding: 20px 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .form-inline {
        flex-direction: column;
    }
    
    .filter-bar {
        flex-direction: column;
    }
}

/* ===== Print Styles ===== */
@media print {
    .sidebar, .topbar, .btn, .filter-bar {
        display: none !important;
    }
    
    .main-content {
        margin-right: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

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

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

/* ===== Misc ===== */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-primary { color: var(--primary); }
.text-success { color: var(--secondary); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--gray-500); }
.fw-700 { font-weight: 700; }
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }