/**
 * Main Stylesheet
 * Cat Tree Factory Official Website
 * Design System: Natural Wood + Forest Green + Warm Orange
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Primary Colors */
    --color-primary: #D2B48C;      /* Tan/Wood */
    --color-secondary: #2E8B57;     /* Forest Green */
    --color-background: #F5F5DC;     /* Beige */
    --color-accent: #FFA500;        /* Orange CTA */
    --color-accent-hover: #FF8C00;  /* Dark Orange */
    
    /* Neutral Colors */
    --color-text: #333333;          /* Dark Gray */
    --color-text-light: #666666;    /* Light Gray */
    --color-border: #E8E8E8;        /* Border Gray */
    --color-white: #FFFFFF;
    --color-dark: #1a1a1a;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 12px 48px rgba(0,0,0,0.15);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 20px;
    
    /* Z-Index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Chinese Font Support */
:lang(zh-CN) body,
:lang(zh) body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

a:hover {
    color: var(--color-secondary);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

ul, ol {
    list-style: none;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

@media (min-width: 768px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
    h3 { font-size: 1.75rem; }
}

p {
    margin-bottom: 1rem;
}

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

/* ==================== Layout ==================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: 2rem;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-text-light);
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-4xl) 0;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-6 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .grid-6 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .grid-6 { grid-template-columns: 1fr; }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Spacing Utilities */
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

/* ==================== Navigation ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-secondary);
}

.navbar-brand img {
    height: 40px;
    width: auto;
}

.navbar-menu {
    display: none;
    align-items: center;
    gap: var(--space-xl);
}

.navbar-menu.active {
    display: flex;
}

.navbar-link {
    font-size: 0.9375rem;
    color: var(--color-text);
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: width var(--transition-base);
}

.navbar-link:hover,
.navbar-link.active {
    color: var(--color-secondary);
}

.navbar-link:hover::after,
.navbar-link.active::after {
    width: 100%;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-toggle:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.lang-toggle img {
    width: 20px;
    height: 14px;
    object-fit: cover;
    border-radius: 2px;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 1024px) {
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: var(--color-white);
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }
    
    .navbar-menu.active {
        transform: translateX(0);
    }
    
    .menu-toggle {
        display: flex;
    }
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 12px 24px;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: #257a48;
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ==================== Cards ==================== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

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

.card-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.card-text {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-slider {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}

.hero-slide-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 700px;
    color: var(--color-white);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-white);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-sm);
    z-index: 10;
}

.hero-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.hero-dot.active {
    background: var(--color-accent);
    width: 36px;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

/* ==================== Product Cards ==================== */
.product-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card .card-image {
    flex-shrink: 0;
}

.product-card .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-sku {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
}

.product-card-price {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-md);
}

.product-card-actions {
    margin-top: auto;
    display: flex;
    gap: var(--space-sm);
}

/* ==================== Advantage Cards ==================== */
.advantage-card {
    text-align: center;
    padding: var(--space-xl);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-full);
    color: var(--color-white);
    font-size: 2rem;
}

.advantage-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.advantage-text {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.9375rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: #dc3545;
}

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

.form-error {
    font-size: 0.75rem;
    color: #dc3545;
    margin-top: var(--space-xs);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

/* ==================== Modal ==================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}

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

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

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

/* ==================== Footer ==================== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-col-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-link {
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-accent);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    color: rgba(255,255,255,0.7);
}

.footer-contact-item i {
    color: var(--color-primary);
    margin-top: 4px;
}

.footer-social {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.5);
}

/* ==================== Back to Top ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

/* ==================== Toast Notifications ==================== */
.toast-container {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transform: translateX(120%);
    transition: transform var(--transition-base);
    max-width: 350px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left: 4px solid #28a745;
}

.toast.error {
    border-left: 4px solid #dc3545;
}

.toast.info {
    border-left: 4px solid var(--color-secondary);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast.success .toast-icon { color: #28a745; }
.toast.error .toast-icon { color: #dc3545; }
.toast.info .toast-icon { color: var(--color-secondary); }

.toast-message {
    flex: 1;
    font-size: 0.875rem;
}

/* ==================== Quote Sidebar ==================== */
.quote-sidebar {
    position: fixed;
    right: -400px;
    top: 0;
    bottom: 0;
    width: 400px;
    max-width: 100vw;
    background: var(--color-white);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    transition: right var(--transition-base);
}

.quote-sidebar.active {
    right: 0;
}

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

.quote-sidebar-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.quote-sidebar-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}

.quote-sidebar-close:hover {
    background: var(--color-border);
}

.quote-sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
}

.quote-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.quote-item-image {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.quote-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.quote-item-info {
    flex: 1;
}

.quote-item-name {
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.quote-item-sku {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.quote-item-remove {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.quote-item-remove:hover {
    color: #dc3545;
}

.quote-empty {
    text-align: center;
    padding: var(--space-3xl) 0;
    color: var(--color-text-light);
}

.quote-empty i {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.quote-sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* ==================== Badge ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.badge-primary { background: var(--color-primary); color: var(--color-white); }
.badge-secondary { background: var(--color-secondary); color: var(--color-white); }
.badge-accent { background: var(--color-accent); color: var(--color-white); }
.badge-success { background: #28a745; color: var(--color-white); }
.badge-warning { background: #ffc107; color: var(--color-dark); }
.badge-danger { background: #dc3545; color: var(--color-white); }
.badge-info { background: #17a2b8; color: var(--color-white); }

/* ==================== Quote Floating Button ==================== */
.quote-float-btn {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.quote-float-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.quote-float-btn .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--color-secondary);
}

/* ==================== Loading Spinner ==================== */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-secondary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

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

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease forwards;
}

/* Stagger Animation */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* ==================== Responsive Utilities ==================== */
@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
    .hide-desktop { display: none !important; }
}

/* ==================== Image Lazy Loading ==================== */
img.lazy {
    opacity: 0;
    transition: opacity var(--transition-base);
}

img.lazy.loaded {
    opacity: 1;
}

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

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

.table th,
.table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-weight: 600;
    background: var(--color-background);
    white-space: nowrap;
}

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

/* ==================== Pagination ==================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.pagination-btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

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

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

/* ==================== Breadcrumb ==================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.breadcrumb a {
    color: var(--color-text-light);
}

.breadcrumb a:hover {
    color: var(--color-secondary);
}

.breadcrumb-separator {
    color: var(--color-border);
}

/* ==================== Tabs ==================== */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
}

.tab-btn {
    padding: var(--space-md) var(--space-lg);
    font-size: 0.9375rem;
    color: var(--color-text-light);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--color-secondary);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ==================== Chat Widget ==================== */
.chat-widget {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: var(--z-fixed);
}

.chat-btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.5rem;
}

.chat-btn:hover {
    transform: scale(1.1);
    background: var(--color-accent);
}

.chat-status {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 12px;
    height: 12px;
    background: #28a745;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-white);
}

/* ==================== Admin Styles ==================== */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--color-dark);
    color: var(--color-white);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: var(--z-sticky);
}

.admin-sidebar-logo {
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.admin-sidebar-logo h1 {
    font-size: 1.125rem;
    color: var(--color-white);
}

.admin-nav {
    padding: var(--space-md);
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    color: rgba(255,255,255,0.7);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xs);
    transition: all var(--transition-fast);
}

.admin-nav-item:hover,
.admin-nav-item.active {
    background: rgba(255,255,255,0.1);
    color: var(--color-white);
}

.admin-nav-item.active {
    background: var(--color-secondary);
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    background: var(--color-background);
    min-height: 100vh;
}

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

.admin-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.admin-page-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.admin-content {
    padding: var(--space-xl);
}

.admin-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

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

.admin-card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

@media (max-width: 1200px) {
    .admin-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .admin-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.active {
        transform: translateX(0);
    }
    
    .admin-main {
        margin-left: 0;
    }
}

.admin-stat-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.admin-stat-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
}

.admin-stat-icon.blue { background: rgba(0,123,255,0.1); color: #007bff; }
.admin-stat-icon.green { background: rgba(40,167,69,0.1); color: #28a745; }
.admin-stat-icon.orange { background: rgba(255,165,0,0.1); color: #ffa500; }
.admin-stat-icon.purple { background: rgba(111,66,193,0.1); color: #6f42c1; }
.admin-stat-icon.red { background: rgba(220,53,69,0.1); color: #dc3545; }

.admin-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.admin-stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Admin Charts */
.admin-chart-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-lg);
}

@media (max-width: 1024px) {
    .admin-chart-grid {
        grid-template-columns: 1fr;
    }
}

.admin-chart-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

/* ==================== Utility Classes ==================== */
.hidden { display: none !important; }
.visible { visibility: visible !important; }
.invisible { visibility: hidden !important; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.cursor-pointer { cursor: pointer; }
.pointer-events-none { pointer-events: none; }
.select-none { user-select: none; }
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ==================== Print Styles ==================== */
@media print {
    .navbar,
    .footer,
    .back-to-top,
    .quote-float-btn,
    .chat-widget {
        display: none !important;
    }
    
    .hero {
        height: auto;
        min-height: auto;
        margin-top: 0;
    }
    
    .section {
        padding: var(--space-lg) 0;
    }
}