/* ========================================
   ZENTRO HOMES LLC - Premium E-commerce Styles
   Shopify-Inspired Light Theme
   ======================================== */

/* ========== CSS CUSTOM PROPERTIES ========== */
:root {
    /* Color Palette - Warm & Sophisticated */
    --primary-brown: #8B7355;
    --primary-brown-dark: #6B5644;
    --primary-brown-light: #A68A6F;
    
    --accent-sage: #87A878;
    --accent-sage-dark: #6B8A5C;
    --accent-sage-light: #A3BF94;
    
    --neutral-cream: #F5F3F0;
    --neutral-beige: #E8E4DF;
    --neutral-gray: #A19B94;
    --neutral-dark: #2C2C2C;
    
    --white: #FFFFFF;
    --black: #1A1A1A;
    --error: #D14545;
    --success: #5FA55E;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing(8px base) */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* ========== GOOGLE FONTS ========== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@400;500;600;700&display=swap');

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

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

body {
    font-family: var(--font-body);
    color: var(--neutral-dark);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--black);
}

h1 { font-size: 3rem; margin-bottom: var(--space-md); }
h2 { font-size: 2.25rem; margin-bottom: var(--space-md); }
h3 { font-size: 1.75rem; margin-bottom: var(--space-sm); }
h4 { font-size: 1.25rem; margin-bottom: var(--space-sm); }

p { margin-bottom: var(--space-sm); }

a {
    color: var(--primary-brown);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

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

/* ========== UTILITY CLASSES ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

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

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

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

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

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

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

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

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

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

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

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

/* ========== HEADER ========== */
header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

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

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-brown);
}

nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    align-items: center;
}

nav a {
    font-weight: 500;
    font-size: 1rem;
    color: var(--neutral-dark);
    padding: 0.5rem 0;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-brown);
    transition: width var(--transition-base);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

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

.icon-btn {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--neutral-dark);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-base);
}

.icon-btn:hover {
    color: var(--primary-brown);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent-sage);
    color: var(--white);
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--neutral-dark);
}

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    height: 600px;
    background: linear-gradient(135deg, var(--neutral-cream) 0%, var(--neutral-beige) 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><path d="M0,1000 L1000,1000 L1000,0 C800,200 600,300 400,400 C200,500 0,700 0,1000 Z" fill="%23A68A6F" opacity="0.1"/></svg>');
    background-size: cover;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: var(--space-md);
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--neutral-gray);
    margin-bottom: var(--space-lg);
}

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

/* ========== PRODUCT GRID ========== */
.products-section {
    padding: var(--space-2xl) 0;
}

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

.section-subtitle {
    color: var(--accent-sage);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.product-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    background: var(--neutral-cream);
    transition: transform var(--transition-slow);
}

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

.product-info {
    padding: var(--space-md);
}

.product-category {
    color: var(--neutral-gray);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.product-name {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
    color: var(--black);
}

.product-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-brown);
    margin-bottom: var(--space-sm);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    color: var(--neutral-gray);
    margin-bottom: var(--space-sm);
}

.stars {
    color: #F5A623;
}

/* ========== FOOTER ========== */
footer {
    background: var(--neutral-dark);
    color: var(--neutral-beige);
    padding: var(--space-2xl) 0 var(--space-md);
    margin-top: var(--space-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h3 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--neutral-beige);
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: var(--accent-sage-light);
}

.footer-contact p {
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.payment-methods {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.payment-icon {
    background: var(--white);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--neutral-dark);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-md);
    text-align: center;
    color: var(--neutral-gray);
}

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

label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--neutral-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--neutral-beige);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-brown);
    box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.1);
}

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

/* ========== CART & CHECKOUT ========== */
.cart-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-md);
}

.cart-item-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.cart-item-details {
    flex: 1;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.qty-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--neutral-beige);
    background: var(--white);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.qty-btn:hover {
    background: var(--neutral-cream);
    border-color: var(--primary-brown);
}

/* ========== REVIEWS ========== */
.reviews-section {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--neutral-beige);
}

.review-card {
    background: var(--neutral-cream);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.reviewer-name {
    font-weight: 600;
    color: var(--black);
}

.review-date {
    font-size: 0.875rem;
    color: var(--neutral-gray);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
    }
    
    nav {
        display: none;
        width: 100%;
        margin-top: var(--space-md);
    }
    
    nav.mobile-active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: var(--space-md);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ========== LOADING STATES ========== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--neutral-beige);
    border-top-color: var(--primary-brown);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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