/* CaterPro - Modern Material Design Theme */

/* ========================================
   CSS Variables (Material Design 3)
   ======================================== */
:root {
    /* Primary Colors */
    --primary-50: #e8f0fe;
    --primary-100: #c5dafc;
    --primary-200: #a0c4fa;
    --primary-300: #7aaaf6;
    --primary-400: #548df1;
    --primary-500: #1976d2;
    --primary-600: #1565c0;
    --primary-700: #0d47a1;
    --primary-800: #0a3d8f;
    --primary-900: #072f70;

    /* Secondary Colors */
    --secondary-50: #e0f2f1;
    --secondary-100: #b2dfdb;
    --secondary-200: #80cbc4;
    --secondary-300: #4db6ac;
    --secondary-400: #26a69a;
    --secondary-500: #009688;
    --secondary-600: #00897b;
    --secondary-700: #00796b;
    --secondary-800: #00695c;
    --secondary-900: #004d40;

    /* Neutral Colors */
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;

    /* Semantic Colors */
    --success: #10b981;
    --success-bg: #d1fae5;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --error: #ef4444;
    --error-bg: #fee2e2;
    --info: #3b82f6;
    --info-bg: #dbeafe;

    /* Background Colors */
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-sidebar: #ffffff;

    /* Text Colors */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --text-inverse: #ffffff;

    /* Shadows (Elevation) */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* Sidebar */
    --sidebar-width: 260px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Oxygen', 'Ubuntu', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-700);
}

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

/* ========================================
   Sidebar Styles
   ======================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block !important;
    opacity: 1 !important;
}

.sidebar-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-primary);
    text-decoration: none;
}

.sidebar-logo-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: var(--shadow-md);
}

.sidebar-logo-text h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-logo-text span {
    font-size: 11px;
    color: var(--text-tertiary);
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    margin-bottom: var(--space-1);
    font-weight: 500;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--gray-200);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--gray-100);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.user-role {
    color: var(--text-tertiary);
    font-size: 11px;
}

.logout-btn {
    color: var(--error) !important;
}

.logout-btn:hover {
    background: var(--error-bg) !important;
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    margin-left: var(--sidebar-width);
    padding: var(--space-6);
    min-height: 100vh;
    background: var(--bg-primary);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.page-title {
    color: var(--text-primary);
    font-size: 28px;
    font-weight: 600;
    line-height: 1.2;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: var(--space-1);
}

/* ========================================
   Cards (Material Design)
   ======================================== */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    padding: var(--space-6);
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--gray-200);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 14px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-600);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-700);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

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

.btn-success:hover {
    background: #059669;
    color: white;
}

.btn-danger {
    background: var(--error);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-danger:hover {
    background: #dc2626;
    color: white;
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: 13px;
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: 16px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ========================================
   Form Elements
   ======================================== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--gray-300);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

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

.form-control.is-invalid {
    border-color: var(--error);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--error-bg);
}

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='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

/* ========================================
   Stats Cards
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    transition: all var(--transition-normal);
}

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

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-card-icon.green {
    background: var(--success-bg);
}

.stat-card-icon.orange {
    background: var(--warning-bg);
}

.stat-card-icon.blue {
    background: var(--info-bg);
}

.stat-card-icon.purple {
    background: #f3e8ff;
}

.stat-card-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-card-label {
    margin-top: 3px !important;
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: var(--space-1);
}

/* ========================================
   Tables
   ======================================== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th {
    padding: var(--space-4);
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.table td {
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    color: var(--text-primary);
}

.table tbody tr {
    transition: background var(--transition-fast);
}

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

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

/* ========================================
   Badges
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-pending {
    background: var(--warning-bg);
    color: #92400e;
}

.badge-confirmed {
    background: var(--info-bg);
    color: #1e40af;
}

.badge-completed {
    background: var(--success-bg);
    color: #065f46;
}

.badge-cancelled {
    background: var(--error-bg);
    color: #991b1b;
}

/* ========================================
   Search & Filters
   ======================================== */
.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-box input {
    padding-left: 44px;
}

.search-box svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    width: 20px;
    height: 20px;
}

.filter-bar {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: var(--space-5);
    align-items: center;
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
    animation: fadeIn var(--transition-fast);
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp var(--transition-normal);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5);
    border-bottom: 1px solid var(--gray-200);
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: var(--space-5);
}

.modal-footer {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ========================================
   Login Page
   ======================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    text-align: center;
}

.login-logo {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    font-size: 32px;
    box-shadow: var(--shadow-md);
}

.login-title {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.login-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    font-size: 14px;
}

.login-form {
    text-align: left;
}

/* ========================================
   Steps Indicator
   ======================================== */
.steps-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.step {
    display: flex;
    align-items: center;
}

.step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition-normal);
}

.step-circle-pending {
    background: var(--gray-200);
    color: var(--text-tertiary);
}

.step-circle-active {
    background: var(--primary-600);
    color: white;
    box-shadow: var(--shadow-md);
}

.step-circle-completed {
    background: var(--success);
    color: white;
}

.step-line {
    width: 40px;
    height: 3px;
    border-radius: 2px;
    margin: 0 var(--space-1);
}

.step-line-pending {
    background: var(--gray-200);
}

.step-line-completed {
    background: var(--success);
}

/* ========================================
   Category Cards
   ======================================== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
}

.category-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    box-shadow: var(--shadow-sm);
}

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

.category-card.active {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.category-icon {
    font-size: 40px;
    margin-bottom: var(--space-3);
}

.category-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

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

/* ========================================
   Item Grid
   ======================================== */
.item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-3);
}

.item-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    box-shadow: var(--shadow-xs);
}

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

.item-card.selected {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.item-image {
    width: 100%;
    height: 70px;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: var(--space-3);
}

.item-name {
    font-weight: 500;
    font-size: 13px;
    color: var(--text-primary);
}

/* ========================================
   Action Buttons (Table Actions)
   ======================================== */
.action-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--gray-200);
    color: var(--text-primary);
}

.action-btn.delete-btn:hover {
    background: var(--error-bg);
    color: var(--error);
}

.action-btn svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   Invoice Preview
   ======================================== */
.invoice-preview {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: 1002;
    }

    /* When body has sidebar-open class, show sidebar */
    body.sidebar-open .sidebar {
        transform: translateX(0);
    }

    .main-content {
        padding-top: 72px !important;
        margin-left: 0;
    }

    .mobile-menu-toggle {
        display: flex !important;
    }
    
    /* Show overlay when sidebar is open */
    .sidebar-overlay.active {
        display: block !important;
        opacity: 1 !important;
    }
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

    .main-content {
        padding-top: 72px !important;
        padding-left: var(--space-4) !important;
        padding-right: var(--space-4) !important;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-bar .search-box {
        min-width: 100%;
    }

    .filter-bar select,
    .filter-bar .btn {
        width: 100%;
    }

    .table-container {
        margin: 0 calc(-1 * var(--space-5));
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .login-card {
        padding: var(--space-6);
    }
}

@media (max-width: 480px) {
    .main-content {
        padding-top: 72px !important;
        padding-left: var(--space-4) !important;
        padding-right: var(--space-4) !important;
    }

    .card {
        padding: var(--space-4);
    }

    .stat-card {
        padding: var(--space-4);
    }

    .stat-card-value {
        font-size: 20px;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

.animate-fadeIn {
    animation: fadeIn var(--transition-normal);
}

.animate-slideUp {
    animation: slideUp var(--transition-normal);
}

/* ========================================
   Mobile Menu Toggle
   ======================================== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: var(--space-4);
    left: var(--space-4);
    z-index: 999;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle svg {
    color: var(--text-primary);
}

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

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ========================================
   Notifications
   ======================================== */
#notifications {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.notification {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary-500);
    animation: slideDown var(--transition-normal);
    max-width: 350px;
}

.notification.success {
    border-left-color: var(--success);
}

.notification.error {
    border-left-color: var(--error);
}

.notification.warning {
    border-left-color: var(--warning);
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    text-align: center;
    padding: var(--space-10) var(--space-6);
}

.empty-state-icon {
    font-size: 56px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-state-text {
    color: var(--text-secondary);
    margin-bottom: var(--space-5);
}

/* ========================================
   Quick Stats Row
   ======================================== */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    text-align: center;
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

.quick-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.quick-stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}

.quick-stat-value.completed {
    color: var(--success);
}

.quick-stat-value.confirmed {
    color: var(--info);
}

.quick-stat-value.pending {
    color: var(--warning);
}

/* ========================================
   Summary Cards (Payment Section)
   ======================================== */
.summary-card {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    color: white;
    margin-bottom: var(--space-5);
}

.summary-card h3 {
    font-size: 14px;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: var(--space-3);
}

.summary-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-4);
}

.summary-item {
    text-align: center;
}

.summary-item-value {
    font-size: 20px;
    font-weight: 700;
}

.summary-item-label {
    font-size: 12px;
    opacity: 0.8;
    margin-top: var(--space-1);
}

/* ========================================
   Balance Display
   ======================================== */
.balance-display {
    background: var(--gray-100);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    margin: var(--space-5) 0;
}

.balance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    text-align: center;
}

.balance-item {
    padding: var(--space-3);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
}

.balance-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.balance-value.total {
    color: var(--text-primary);
}

.balance-value.advance {
    color: var(--success);
}

.balance-value.due {
    color: var(--error);
}

.balance-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}

/* ========================================
   Selected Items List
   ======================================== */
.selected-items-list {
    margin-top: var(--space-5);
}

.selected-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
}

.selected-item-name {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}

.selected-item-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.quantity-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--gray-200);
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 16px;
    transition: all var(--transition-fast);
}

.quantity-btn:hover {
    background: var(--gray-300);
}

.quantity-input {
    width: 50px;
    text-align: center;
    padding: var(--space-2);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.remove-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--error-bg);
    border: none;
    color: var(--error);
    cursor: pointer;
    font-size: 18px;
    transition: all var(--transition-fast);
}

.remove-btn:hover {
    background: var(--error);
    color: white;
}

/* ========================================
   Icon Buttons (Category Selection)
   ======================================== */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: var(--space-2);
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--gray-100);
    border: 2px solid transparent;
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.icon-btn:hover {
    background: var(--gray-200);
}

.icon-btn.selected {
    background: var(--primary-100);
    border-color: var(--primary-500);
}

/* ========================================
   Review Content
   ======================================== */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.review-card {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--space-4);
}

.review-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--gray-200);
}

.review-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
}

.review-row:last-child {
    border-bottom: none;
}

.review-row strong {
    color: var(--text-secondary);
    font-weight: 500;
}

.review-row span:last-child {
    font-weight: 500;
    color: var(--text-primary);
}

/* ========================================
   Misc Items
   ======================================== */
.misc-items {
    margin-top: var(--space-5);
}

.misc-item-row {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.misc-item-row input[type="text"] {
    flex: 2;
}

.misc-item-row input[type="number"] {
    flex: 1;
}

.misc-remove-btn {
    width: 40px;
    background: var(--error-bg);
    border: none;
    border-radius: var(--radius-md);
    color: var(--error);
    cursor: pointer;
    font-size: 20px;
    transition: all var(--transition-fast);
}

.misc-remove-btn:hover {
    background: var(--error);
    color: white;
}

/* ========================================
   View Invoice Specific Styles
   ======================================== */
.invoice-header {
    text-align: center;
    padding-bottom: var(--space-5);
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: var(--space-5);
}

.invoice-company {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.invoice-company-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.invoice-company h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.invoice-company-details {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}

.invoice-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-600);
    margin: var(--space-4) 0 var(--space-2);
}

.invoice-number {
    font-family: monospace;
    font-size: 14px;
    color: var(--text-secondary);
}

.invoice-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-5);
    padding: var(--space-5) 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.invoice-detail-section h3 {
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-2);
}

.invoice-detail-value {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
}

.invoice-detail-value.name {
    font-size: 17px;
}

.invoice-detail-row {
    margin-top: var(--space-1);
    font-size: 14px;
    color: var(--text-secondary);
}

.invoice-totals {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-top: var(--space-5);
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
}

.total-row.grand-total {
    border-top: 2px solid var(--gray-300);
    margin-top: var(--space-2);
    padding-top: var(--space-3);
    font-weight: 700;
    font-size: 16px;
}

.total-row.advance {
    color: var(--success);
}

.total-row.balance {
    border-top: 2px solid var(--gray-300);
    margin-top: var(--space-2);
    padding-top: var(--space-3);
    font-weight: 700;
    font-size: 18px;
    color: var(--error);
}

.invoice-footer {
    text-align: center;
    padding-top: var(--space-6);
    margin-top: var(--space-6);
    border-top: 1px solid var(--gray-200);
}

.invoice-footer p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: var(--space-5);
}

.signature-area {
    display: flex;
    justify-content: space-between;
    max-width: 300px;
    margin: 0 auto;
}

.signature-box {
    text-align: center;
}

.signature-line {
    width: 120px;
    border-top: 1px solid var(--gray-400);
    margin-bottom: var(--space-2);
    padding-top: var(--space-2);
    font-size: 11px;
    color: var(--text-secondary);
}

/* Alert Styles */
.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    font-size: 14px;
    animation: slideDown 0.3s ease;
}

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

.alert .material-icons {
    font-size: 22px;
    flex-shrink: 0;
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
}

.alert-warning {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #d97706;
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #16a34a;
}

.alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #2563eb;
}

/* Field Error Styles */
.field-error {
    display: none;
    color: var(--error);
    font-size: 12px;
    margin-top: 6px;
    align-items: center;
    gap: 4px;
}

.field-error::before {
    content: '⚠';
    font-size: 12px;
}

/* Form Section Title */
.form-section-title {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 0px;
}

.subsection-title {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

/* Review Card Stats */
.review-stat {
    text-align: center;
    padding: 16px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.review-stat:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.review-stat-success {
    background: #dcfce7;
}

.review-stat-success .review-stat-label {
    color: #166534;
}

.review-stat-success .review-stat-value {
    color: #16a34a;
}

.review-stat-danger {
    background: #fee2e2;
}

.review-stat-danger .review-stat-label {
    color: #991b1b;
}

.review-stat-danger .review-stat-value {
    color: #dc2626;
}

.review-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.review-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.review-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.review-card h3 {
    display: flex;
    align-items: center;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.review-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px solid var(--gray-100);
}

.review-row:last-child {
    border-bottom: none;
}

.review-row strong {
    color: var(--text-secondary);
    font-weight: 500;
}

.review-row span {
    color: var(--text-primary);
    font-weight: 500;
    text-align: right;
    max-width: 60%;
    word-break: break-word;
}

/* Step Indicator Labels */
.steps-indicator .step-label {
    color: var(--text-secondary);
    margin-left: 8px;
    font-size: 14px;
    font-weight: 500;
}

@media (max-width: 640px) {
    .steps-indicator .step-label {
        display: none;
    }
}

/* Steps indicator mobile responsive */
@media (max-width: 640px) {
    .steps-indicator {
        justify-content: center;
    }
    
    .steps-indicator .step:not(:last-child) {
        margin-right: 8px;
    }
}



/* FORCE Font Awesome to use the correct font family */
.fa, .fas, .fa-solid, .fa-regular, .fa-brands {
    font-family: "Font Awesome 6 Free" !important;
    font-weight: 900 !important; /* Solid icons require weight 900 */
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    line-height: 1;
}

/* Hide the hamburger button when the sidebar is open */
body.sidebar-open .mobile-menu-toggle {
    display: none !important;
}