/* ============================================
   FINESTRE A TETTO CATANIA - STYLESHEET
   Design: Minimal, Moderno, Responsive
   ============================================ */

/* ----- Reset e Variabili ----- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colori */
    --color-primary: #2563eb;      /* Blu accent */
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-border: #e5e7eb;
    --color-success: #10b981;
    --color-error: #ef4444;
    
    /* Spaziature */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transizioni */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    
    /* Font */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* ----- Utilities ----- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    background-color: var(--color-bg-alt);
}

.btn-full {
    width: 100%;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.1rem;
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
}

/* ----- Header ----- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1.1rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.cart-toggle {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-toggle:hover {
    background-color: var(--color-border);
}

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

.cart-count {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background-color: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

/* ----- Hero Section ----- */
.hero {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

/* ----- Features Section ----- */
.features {
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    text-align: center;
    padding: var(--space-lg);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
    background-color: var(--color-primary);
    color: white;
    font-size: 1.25rem;
    border-radius: var(--radius-full);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ----- Products Section ----- */
.products {
    padding: var(--space-3xl) 0;
}

.section-title {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

/* ----- Product Card ----- */
.product-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.product-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

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

.product-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
}

.product-badge.premium {
    background-color: #f59e0b;
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.product-info p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.product-price span {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-light);
}

/* ----- Modal ----- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    cursor: pointer;
    transition: background var(--transition-fast);
    z-index: 10;
}

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

.modal-body {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: var(--space-xl);
}

@media (min-width: 640px) {
    .modal-body {
        grid-template-columns: 1fr 1fr;
    }
}

.modal-image .product-image-placeholder {
    height: 250px;
    border-radius: var(--radius-md);
}

.modal-info h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.modal-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

/* ----- Configurator ----- */
.configurator {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.config-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.config-select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    cursor: pointer;
    margin-bottom: var(--space-lg);
}

.config-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.price-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.price-label {
    font-weight: 500;
}

.price-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* ----- Cart Sidebar ----- */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 300;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--color-bg);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.cart-sidebar.active {
    transform: translateX(0);
}

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

.cart-header h3 {
    font-size: 1.25rem;
}

.cart-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    cursor: pointer;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
}

.cart-empty {
    text-align: center;
    color: var(--color-text-light);
    padding: var(--space-2xl) 0;
}

.cart-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.cart-item-image {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.cart-item-details {
    flex: 1;
    min-width: 0;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

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

.cart-item-price {
    font-weight: 600;
    color: var(--color-primary);
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--color-text-light);
    cursor: pointer;
    padding: var(--space-xs);
    font-size: 1.25rem;
    transition: color var(--transition-fast);
}

.cart-item-remove:hover {
    color: var(--color-error);
}

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

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

/* ----- Checkout Page ----- */
.checkout-page {
    padding: var(--space-2xl) 0;
    min-height: calc(100vh - 200px);
}

.page-title {
    font-size: 1.75rem;
    margin-bottom: var(--space-2xl);
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

@media (min-width: 768px) {
    .checkout-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.order-summary {
    padding: var(--space-lg);
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    height: fit-content;
}

.order-summary h2 {
    font-size: 1.25rem;
    margin-bottom: var(--space-lg);
}

.summary-items {
    margin-bottom: var(--space-lg);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.summary-item-name {
    font-weight: 500;
}

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

.summary-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.25rem;
    font-weight: 700;
    padding-top: var(--space-md);
    border-top: 2px solid var(--color-border);
}

.checkout-form-container h2 {
    font-size: 1.25rem;
    margin-bottom: var(--space-lg);
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--space-sm);
}

/* ----- Success Message ----- */
.success-message {
    position: fixed;
    inset: 0;
    z-index: 400;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.98);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.success-message.active {
    opacity: 1;
    visibility: visible;
}

.success-content {
    text-align: center;
    padding: var(--space-2xl);
}

.success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background-color: var(--color-success);
    color: white;
    font-size: 2.5rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
}

.success-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--space-md);
}

.success-content p {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

/* ----- Footer ----- */
.footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--space-2xl) 0;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer h4 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.footer p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: var(--space-xs);
}

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

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

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

.footer-bottom p {
    font-size: 0.875rem;
}

/* ----- Responsive ----- */
@media (max-width: 640px) {
    .hero {
        padding: var(--space-2xl) 0;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-body {
        padding: var(--space-lg);
    }
    
    .cart-sidebar {
        max-width: 100%;
    }
}

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

.product-card {
    animation: fadeIn 0.4s ease forwards;
}

.product-card:nth-child(2) {
    animation-delay: 0.1s;
}

.product-card:nth-child(3) {
    animation-delay: 0.2s;
}