/**
 * itabo.bg Warranty System v2.0
 * Main Stylesheet
 * 
 * Table of Contents:
 * 1. CSS Variables
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout Components
 * 5. Sidebar & Navigation
 * 6. Forms & Inputs
 * 7. Tables
 * 8. Cards
 * 9. Buttons
 * 10. Utilities
 * 11. Responsive Design
 */

/* ========================================
   1. CSS VARIABLES
   ======================================== */
:root {
    /* Brand Colors */
    --primary-blue: #007FB0;
    --primary-blue-dark: #006190;
    --primary-green: #8DC63F;
    --primary-green-dark: #7AB62F;
    
    /* Status Colors */
    --success: #8DC63F;
    --warning: #FFC107;
    --danger: #DC3545;
    --info: #17A2B8;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --medium-gray: #E9ECEF;
    --dark-gray: #6C757D;
    --text-dark: #333333;
    --text-muted: #6C757D;
    
    /* Semantic Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F2F2;
    --bg-sidebar: #007FB0;
    --border-color: #DEE2E6;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --sidebar-width: 280px;
    --mobile-header-height: 60px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    --spacing-xl: 40px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-round: 50%;
    
    /* Fonts */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

/* ========================================
   2. RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background: var(--bg-secondary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Remove default link styles */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Lists */
ul, ol {
    list-style: none;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   3. TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-blue);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

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

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

.text-right {
    text-align: right;
}

/* ========================================
   4. LAYOUT COMPONENTS
   ======================================== */

/* Mobile Header (hidden on desktop) */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--mobile-header-height);
    background: var(--bg-sidebar);
    color: var(--white);
    align-items: center;
    padding: 0 var(--spacing-md);
    z-index: 1001;
    box-shadow: var(--shadow-md);
}

.hamburger-btn {
    background: none;
    border: none;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
    margin-right: var(--spacing-md);
    transition: transform var(--transition-fast);
}

.hamburger-btn:hover {
    transform: scale(1.1);
}

.mobile-title {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-heading);
    text-align: center;
    margin-right: 44px; /* Balance with hamburger button */
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

/* Main Content Container */
.main-content,
.form-container,
.dashboard-container {
    margin-left: var(--sidebar-width);
    padding: var(--spacing-lg);
    min-height: 100vh;
}

.page-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--primary-green);
}

.page-title i {
    font-size: 1.8rem;
}

/* Content Wrapper */
.content-wrapper {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

/* Section */
.section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ========================================
   5. SIDEBAR & NAVIGATION
   ======================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    color: var(--white);
    display: flex;
    flex-direction: column;
    z-index: 999;
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    transition: left var(--transition-normal);
}

.logo-box {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md);
    text-align: center;
}

.logo-mini {
    max-width: 180px;
    margin: 0 auto;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 0 var(--spacing-md);
}

.sidebar-nav ul {
    margin-bottom: var(--spacing-md);
}

.sidebar-nav li {
    margin-bottom: var(--spacing-xs);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 14px var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.sidebar-nav a.active {
    background: var(--primary-green);
    box-shadow: var(--shadow-sm);
}

.sidebar-nav a i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-divider {
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
    margin: var(--spacing-md) 0;
}

.sidebar-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.7);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.1);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-round);
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--white);
}

.user-details {
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 2px;
}

.user-role {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   6. FORMS & INPUTS
   ======================================== */
.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--medium-gray);
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.3rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-size: 14px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: var(--font-body);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 127, 176, 0.1);
}

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

/* Product Row */
.product-row {
    background: var(--light-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--medium-gray);
    position: relative;
}

.product-row-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.product-row-title {
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.remove-row-btn {
    background: var(--danger);
    color: var(--white);
    border: none;
    border-radius: var(--radius-round);
    width: 32px;
    height: 32px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-row-btn:hover {
    background: #C82333;
    transform: scale(1.1);
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--medium-gray);
}

/* Search Box */
.search-box {
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.search-box input[type="text"] {
    flex: 1;
    padding: 12px 20px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast);
}

.search-box input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-blue);
}

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

.alert i {
    font-size: 20px;
}

.alert-success {
    background: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
}

.alert-danger {
    background: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
}

.alert-warning {
    background: #FFF3CD;
    color: #856404;
    border: 1px solid #FFEAA7;
}

.alert-info {
    background: #D1ECF1;
    color: #0C5460;
    border: 1px solid #BEE5EB;
}

/* ========================================
   7. TABLES
   ======================================== */
.table-wrapper {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Make tables scrollable on smaller screens */
.table-wrapper > div {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px; /* Minimum width to show all columns */
}

table th,
table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--medium-gray);
    white-space: nowrap;
}

table th {
    position: sticky;
    top: 0;
    z-index: 10;
}

table thead th {
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

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

/* Status Row Colors */
table tbody tr.status-active {
    border-left: 4px solid var(--success);
}

table tbody tr.status-expiring {
    border-left: 4px solid var(--warning);
}

table tbody tr.status-expired {
    border-left: 4px solid var(--danger);
}

/* Table Actions */
.table-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.table-actions a {
    color: var(--primary-blue);
    font-size: 18px;
    transition: all var(--transition-fast);
}

.table-actions a:hover {
    color: var(--primary-blue-dark);
    transform: scale(1.2);
}

/* ========================================
   8. CARDS
   ======================================== */

/* Statistics Cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--white);
}

.stat-card.card-green .stat-icon { background: var(--success); }
.stat-card.card-yellow .stat-icon { background: var(--warning); }
.stat-card.card-red .stat-icon { background: var(--danger); }
.stat-card.card-blue .stat-icon { background: var(--info); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--text-dark);
    line-height: 1;
    margin-bottom: 5px;
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* Warranty Cards (Mobile View) */
.warranties-cards {
    display: none; /* Hidden by default, shown on mobile */
    flex-direction: column;
    gap: var(--spacing-md);
}

.warranty-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border-left: 5px solid var(--primary-blue);
    transition: all var(--transition-normal);
}

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

.warranty-card.status-active { border-left-color: var(--success); }
.warranty-card.status-expiring { border-left-color: var(--warning); }
.warranty-card.status-expired { border-left-color: var(--danger); }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-bottom: 1px solid var(--medium-gray);
}

.warranty-number {
    font-size: 18px;
    font-weight: bold;
    color: var(--primary-blue);
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.status-badge.success {
    background: #D4EDDA;
    color: #155724;
}

.status-badge.warning {
    background: #FFF3CD;
    color: #856404;
}

.status-badge.danger {
    background: #F8D7DA;
    color: #721C24;
}

.card-body {
    padding: var(--spacing-md);
}

.info-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--light-gray);
}

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

.info-row i {
    color: var(--primary-blue);
    width: 20px;
    text-align: center;
}

.info-row strong {
    min-width: 110px;
    color: var(--text-muted);
    font-size: 14px;
}

.info-row span {
    flex: 1;
    color: var(--text-dark);
}

.card-actions {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--light-gray);
    border-top: 1px solid var(--medium-gray);
}

/* Quick Actions */
.quick-actions {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.quick-actions h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.action-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-normal);
}

.action-btn i {
    font-size: 32px;
}

.action-btn span {
    font-size: 15px;
}

/* ========================================
   9. BUTTONS
   ======================================== */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
    text-decoration: none;
    min-height: 48px;
    font-family: var(--font-body);
}

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

.btn i {
    font-size: 16px;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-success:hover:not(:disabled) {
    background: var(--primary-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #545B62;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-danger:hover:not(:disabled) {
    background: #C82333;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-warning:hover:not(:disabled) {
    background: #E0A800;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-info:hover:not(:disabled) {
    background: #138496;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-add {
    width: 100%;
    background: var(--primary-blue);
    color: var(--white);
}

.btn-add:hover:not(:disabled) {
    background: var(--primary-blue-dark);
}

.btn-save {
    background: var(--success);
    color: var(--white);
    flex: 1;
}

.btn-save:hover:not(:disabled) {
    background: var(--primary-green-dark);
}

.btn-cancel {
    background: var(--dark-gray);
    color: var(--white);
}

.btn-cancel:hover:not(:disabled) {
    background: #545B62;
}

.btn-block {
    width: 100%;
    display: flex;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
    min-height: 36px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
    min-height: 56px;
}

/* ========================================
   10. UTILITIES
   ======================================== */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }

.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.fw-normal { font-weight: 400; }

.hidden { display: none; }

/* ========================================
   11. RESPONSIVE DESIGN
   ======================================== */

/* Tablet and below */
@media screen and (max-width: 1024px) {
    :root {
        --sidebar-width: 250px;
    }
    
    .stats-cards {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
    
    .stat-value {
        font-size: 28px;
    }
}

/* Mobile */
@media screen and (max-width: 768px) {
    /* Show mobile header */
    .mobile-header {
        display: flex;
    }
    
    /* Adjust sidebar for mobile */
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        width: 280px;
        height: 100vh;
        z-index: 999;
        transition: left var(--transition-normal);
    }
    
    .sidebar.active {
        left: 0;
    }
    
    /* Adjust main content */
    .main-content,
    .form-container,
    .dashboard-container {
        margin-left: 0;
        margin-top: calc(var(--mobile-header-height) + 10px);
        padding: var(--spacing-md);
    }
    
    /* Typography adjustments */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    /* Stats cards stack vertically */
    .stats-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Form adjustments */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column-reverse;
    }
    
    .btn {
        width: 100%;
    }
    
    .form-section h3 {
        font-size: 1.2rem;
    }
    
    .product-row {
        padding: var(--spacing-md);
    }
    
    /* Hide table, show cards */
    .desktop-view {
        display: none;
    }
    
    .mobile-view,
    .warranties-cards {
        display: flex;
    }
    
    .warranty-number {
        font-size: 16px;
    }
    
    .status-badge {
        font-size: 11px;
        padding: 4px 8px;
    }
    
    .card-actions {
        flex-wrap: wrap;
    }
    
    .card-actions .btn {
        flex: 1 1 calc(50% - 4px);
        font-size: 13px;
        padding: 8px 10px;
        min-height: 40px;
    }
    
    /* Quick actions */
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .action-btn {
        flex-direction: row;
        justify-content: center;
        padding: var(--spacing-md);
    }
    
    .action-btn i {
        font-size: 24px;
    }
    
    /* Search box */
    .search-box {
        flex-direction: column;
    }
    
    .search-box input[type="text"] {
        width: 100%;
    }
    
    .search-box .btn {
        width: 100%;
    }
}

/* Small mobile */
@media screen and (max-width: 480px) {
    :root {
        --spacing-md: 15px;
        --spacing-lg: 20px;
    }
    
    .mobile-logo {
        height: 30px;
    }
    
    .user-name-mobile {
        display: none;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .card-actions .btn {
        flex: 1 1 100%;
    }
}

/* ========================================
   12. LOGIN PAGE
   ======================================== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
}

.login-container {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    width: 100%;
    max-width: 420px;
    animation: fadeIn 0.5s ease;
}

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

.login-logo {
    max-width: 220px;
    margin: 0 auto var(--spacing-lg);
}

.login-title {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

.login-form .form-group {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.login-form input {
    width: 100%;
}

.login-form .btn {
    width: 100%;
    margin-top: var(--spacing-md);
}

.login-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--medium-gray);
    font-size: 14px;
    color: var(--text-muted);
}

/* ========================================
   13. ANIMATIONS
   ======================================== */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* ========================================
   14. LOADING SPINNER
   ======================================== */
.spinner {
    border: 3px solid var(--light-gray);
    border-top: 3px solid var(--primary-blue);
    border-radius: var(--radius-round);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ========================================
   15. PRINT STYLES
   ======================================== */
@media print {
    .sidebar,
    .mobile-header,
    .sidebar-overlay,
    .btn,
    .table-actions,
    .form-actions {
        display: none !important;
    }
    
    .main-content,
    .form-container,
    .dashboard-container {
        margin-left: 0;
        margin-top: 0;
        padding: 0;
    }
    
    body {
        background: white;
    }
}

/* ========================================
   16. SCROLLBAR STYLING
   ======================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--dark-gray);
    border-radius: 5px;
}

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

/* ========================================
   17. ADDITIONAL COMPONENTS
   ======================================== */

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
    color: var(--medium-gray);
}

.empty-state h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

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

.badge-success {
    background: #D4EDDA;
    color: #155724;
}

.badge-danger {
    background: #F8D7DA;
    color: #721C24;
}

.badge-warning {
    background: #FFF3CD;
    color: #856404;
}

.badge-info {
    background: #D1ECF1;
    color: #0C5460;
}

/* Tooltip */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    background-color: var(--text-dark);
    color: var(--white);
    text-align: center;
    border-radius: 6px;
    padding: 5px 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
    white-space: nowrap;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Modal (for future use) */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    animation: slideInLeft 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--medium-gray);
}

.modal-close {
    color: var(--text-muted);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

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

.pagination a,
.pagination span {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

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

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