/* ==========================================================================
   SM Living - Luxury Real Estate Website
   ========================================================================== */

/* CSS Variables */
:root {
    /* Colors - Palette Architettonica 11-4-8 */
    --color-primary: #0A0A0A; /* Nero profondo */
    --color-secondary: #FAF8F3; /* Bianco caldo */
    --color-accent: #B8986B; /* Oro satinato */
    --color-accent-dark: #9A7D54; /* Oro satinato scuro */
    --color-grey-light: #F0EDE6; /* Grigio caldo chiaro */
    --color-grey: #8B8B8B; /* Grigio architettonico */
    --color-grey-dark: #1A1A1A; /* Nero architettonico */

    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing - Modular Scale 8px */
    --spacing-xs: 8px; /* 8px */
    --spacing-sm: 16px; /* 16px */
    --spacing-md: 24px; /* 24px */
    --spacing-lg: 40px; /* 40px */
    --spacing-xl: 64px; /* 64px */
    --spacing-xxl: 96px; /* 96px */

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Borders - Architectural Minimalism */
    --border-thin: 1px solid var(--color-grey);
    --border-accent: 1px solid var(--color-accent);
    --border-primary: 1px solid var(--color-primary);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body), serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-grey-dark);
    background-color: var(--color-secondary);
    overflow-x: hidden;
    letter-spacing: 0.01em;
}

/* Geometric Grid System */
.geometric-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
}

/* Intentional Voids - Negative Space */
.void-space {
    min-height: 64px; /* 8px × 8 = 64px */
}

/* Architectural Lines */
.arch-line {
    width: 64px; /* 8px × 8 */
    height: 2px;
    background: var(--color-accent);
    margin: var(--spacing-md) 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display), serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 {
    font-size: clamp(2rem, 6vw, 5rem);
}

h2 {
    font-size: clamp(1.5rem, 5vw, 3.5rem);
}

h3 {
    font-size: clamp(1.25rem, 4vw, 2rem);
}

h4 {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
}

p {
    margin-bottom: 1rem;
    color: var(--color-grey);
}

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

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

/* ==========================================================================
   Preloader
   ========================================================================== */

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
    /* Auto-hide after 1s even if JS fails */
    animation: preloader-auto-hide 1s ease-in-out 1s forwards;
}

@keyframes preloader-auto-hide {
    to {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 48px;
    height: 48px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-accent);
    /* Minimalist square loader - no border-radius */
    animation: spin 1s linear infinite;
}

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

/* ==========================================================================
   Sidebar Navigation
   ========================================================================== */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 300px;
    height: 100vh;
    background: var(--color-primary);
    z-index: 1000;
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 9999;
    background: var(--color-primary);
    color: var(--color-secondary);
    border: none;
    width: 50px;
    height: 50px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    /* Fix per Samsung Internet e altri browser mobile */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
    -webkit-appearance: none;
    appearance: none;
    pointer-events: auto;
    /* Ombra per visibilità su sfondo chiaro */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-secondary);
    margin: 3px 0;
    transition: all var(--transition-base);
}

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

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Logo */
.logo {
    margin-bottom: var(--spacing-xl);
}

.logo a {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-family: var(--font-display), serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1;
    letter-spacing: 0.05em;
}

.logo-subtext {
    font-family: var(--font-body), serif;
    font-size: 0.875rem;
    font-weight: 300;
    color: var(--color-accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

/* Navigation */
.main-nav {
    flex: 1;
}

.main-nav ul {
    list-style: none;
}

.main-nav li {
    margin-bottom: var(--spacing-sm);
}

.nav-link {
    display: block;
    font-size: 1.125rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: all var(--transition-base);
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    /* hover transform removed - minimalist */
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-secondary);
    padding-left: var(--spacing-md);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 20px;
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    /* border-radius removed - 90° angles */
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-base);
}

.social-link:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    /* hover transform removed - minimalist */
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main-content {
    margin-left: 300px;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease, visibility 1s ease;
}

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

.slide-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    animation: kenburns 20s ease-out infinite;
}

@keyframes kenburns {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
    rgba(10, 10, 10, 0.7) 0%,
    rgba(10, 10, 10, 0.4) 50%,
    rgba(10, 10, 10, 0.6) 100%
    );
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 10%;
    /* hover transform removed - minimalist */
    max-width: 600px;
    z-index: 2;
}

.slide-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: fadeInUp 1s ease 0.2s forwards;
}

.slide-title {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 1s ease 0.4s forwards;
}

.slide-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        /* hover transform removed - minimalist */
    }
    to {
        opacity: 1;
        /* hover transform removed - minimalist */
    }
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 3;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--color-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.slider-pagination {
    display: flex;
    gap: 12px;
}

.pagination-dot {
    width: 12px;
    height: 12px;
    /* border-radius removed - 90° angles */
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all var(--transition-base);
}

.pagination-dot.active {
    background: var(--color-accent);
    transform: scale(1.2);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-secondary);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.7;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--color-accent));
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% { /* hover transform removed - minimalist */
        opacity: 0;
    }
    50% { /* hover transform removed - minimalist */
        opacity: 1;
    }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 16px; /* Explicit sizing - modular scale */
    font-weight: 500;
    text-align: center;
    padding: 16px 40px; /* 8px × 2, 8px × 5 - modular scale */
    border: var(--border-thin);
    cursor: pointer;
    transition: all var(--transition-base);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    /* No border-radius - 90° angles */
}

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

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-primary);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-primary);
    border-color: var(--color-grey);
}

.btn-secondary:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

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

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

.btn.full-width {
    width: 100%;
}

/* ==========================================================================
   Section Styles
   ========================================================================== */

section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.centered {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-grey);
    max-width: 800px;
}

/* ==========================================================================
   Progetti Section
   ========================================================================== */

.progetti-section {
    background: var(--color-grey-light);
}

.progetti-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.progetto-card {
    background: var(--color-secondary);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid rgba(139, 139, 139, 0.15);
    position: relative;
}

.progetto-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--color-accent);
    transition: height var(--transition-base);
}

.progetto-card:hover::before {
    height: 100%;
}

.progetto-card:hover {
    border-color: var(--color-accent);
    /* hover transform removed - minimalist */
}

.progetto-card.large {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
}

.progetto-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.progetto-card.large .progetto-image {
    aspect-ratio: 16 / 12;
}

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

.progetto-card:hover .progetto-image img {
    transform: scale(1.1);
}

.progetto-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.progetto-card:hover .progetto-overlay {
    opacity: 1;
}

.progetto-info {
    padding: var(--spacing-md);
}

.progetto-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-grey);
}

.meta-item svg {
    width: 16px;
    height: 16px;
}

.energy-class {
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    /* border-radius removed - 90° angles */
    font-weight: 600;
}

.progetto-title {
    margin-bottom: var(--spacing-sm);
}

.progetto-description {
    color: var(--color-grey);
    margin-bottom: var(--spacing-md);
}

.progetto-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.highlight {
    font-size: 0.875rem;
    color: var(--color-grey);
}

/* CTA Card */
.cta-card {
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-lg);
}

.cta-content {
    color: var(--color-secondary);
}

.cta-icon {
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.cta-card h3 {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.cta-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.cta-card .btn-outline {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.cta-card .btn-outline:hover {
    background: var(--color-secondary);
    color: var(--color-primary);
}

/* ==========================================================================
   Chi Siamo Section
   ========================================================================== */

.chi-siamo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.chi-siamo-text .text-content {
    margin-bottom: var(--spacing-lg);
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    border: 1px solid rgba(139, 139, 139, 0.2);
    transition: all var(--transition-base);
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.stat-item:hover {
    border-color: var(--color-accent);
    /* hover transform removed - minimalist */
}

.stat-item:hover::after {
    width: 60px;
}

.stat-number {
    font-family: var(--font-display), serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-grey);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.chi-siamo-image {
    position: relative;
}

.chi-siamo-image img {
    width: 100%;
    height: 600px;
    object-fit: cover;
}

.image-accent {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-accent);
    z-index: -1;
}

/* ==========================================================================
   Servizi Section
   ========================================================================== */

.servizi-section {
    background: var(--color-grey-light);
}

.servizi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.servizio-card {
    background: var(--color-secondary);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid rgba(139, 139, 139, 0.15);
    position: relative;
}

.servizio-card:hover {
    /* hover transform removed - minimalist */
    border-color: var(--color-accent);
}

.servizio-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    transition: all var(--transition-base);
}

.servizio-card:hover .servizio-icon {
    background: var(--color-accent);
    color: var(--color-primary);
}

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

.servizio-description {
    color: var(--color-grey);
    font-size: 0.9375rem;
}

/* ==========================================================================
   Contatti Section
   ========================================================================== */

.contatti-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.info-items {
    margin-top: var(--spacing-lg);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.info-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-grey-light);
    /* border-radius removed - 90° angles */
    color: var(--color-accent);
}

.info-text {
    flex: 1;
}

.info-label {
    font-size: 0.875rem;
    color: var(--color-grey);
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-primary);
}

/* Form Styles */
.contatti-form {
    background: var(--color-grey-light);
    padding: var(--spacing-lg);
}

.form-group {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid transparent;
    background: var(--color-secondary);
    font-family: var(--font-body), serif;
    font-size: 1rem;
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--color-grey);
    pointer-events: none;
    transition: all var(--transition-base);
    background: var(--color-secondary);
    padding: 0 0.5rem;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label,
.form-group select:not([value=""]) + label {
    top: -0.5rem;
    left: 0.75rem;
    font-size: 0.875rem;
    color: var(--color-accent);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.checkbox-label,
.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.9375rem;
    margin: 1.5rem 0;
}

.checkbox-label input[type="checkbox"],
.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.checkbox-label a,
.form-checkbox a {
    color: var(--color-accent);
}

.form-checkbox label {
    cursor: pointer;
    display: inline;
    position: relative;
    top: auto;
    left: auto;
    font-size: 0.9375rem;
    color: var(--color-grey-dark);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-text {
    font-size: 2.5rem;
}

.footer-logo .logo-subtext {
    font-size: 0.75rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 0.5rem;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1200px) {
    .sidebar {
        width: 250px;
    }

    .main-content {
        margin-left: 250px;
    }

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

    .progetto-card.large {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-overlay {
        display: block;
    }

    .sidebar {
        width: 280px;
        height: 100vh;
        position: fixed;
        top: 0;
        left: 0;
        transform: translateX(-100%);
        padding: var(--spacing-lg) var(--spacing-md);
        z-index: 1000;
    }

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

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    /* Fix per griglia progetti inline */
    .projects-grid,
    [style*="grid-template-columns: repeat(2"] {
        grid-template-columns: 1fr !important;
    }

    /* Fix per griglia mappa/info location */
    [style*="grid-template-columns: 2fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Fix sovrapposizione menu hamburger con contenuto */
    .location-section,
    .progetti-section {
        padding-top: 80px !important;
    }

    /* Spazio extra per sezioni con sfondo chiaro */
    .section-header.centered {
        padding-top: 20px;
    }

    .hero-section {
        height: 100vh;
        min-height: 600px;
    }

    .slide-content {
        left: 5%;
        right: 5%;
        max-width: 90%;
        top: 45%;
    }

    .slide-title {
        font-size: clamp(1.8rem, 8vw, 3rem);
        line-height: 1.1;
    }

    .slide-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }

    .slider-controls {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .slider-btn {
        width: 40px;
        height: 40px;
    }

    .progetti-grid {
        gap: var(--spacing-sm);
    }

    .progetto-info {
        padding: var(--spacing-sm);
    }

    .chi-siamo-content,
    .contatti-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .chi-siamo-image img {
        height: 400px;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .stat-item {
        padding: var(--spacing-sm);
    }

    .servizi-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-description {
        max-width: 100%;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    section {
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    .mobile-menu-toggle {
        width: 45px;
        height: 45px;
        top: 15px;
        left: 15px;
    }

    .mobile-menu-toggle span {
        width: 20px;
    }

    .sidebar {
        width: 260px;
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .logo img {
        width: 140px !important;
    }

    .slide-content {
        top: 40%;
        padding: 0 var(--spacing-sm);
    }

    .slide-title {
        font-size: clamp(1.5rem, 10vw, 2.5rem);
        margin-bottom: var(--spacing-sm);
    }

    .slide-description {
        font-size: 0.9rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .slider-controls {
        bottom: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .section-header.centered {
        margin-bottom: var(--spacing-md);
    }

    .progetti-grid {
        gap: var(--spacing-xs);
    }

    .progetto-info {
        padding: var(--spacing-xs);
    }

    .progetto-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

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

    .chi-siamo-image img {
        height: 300px;
    }

    .stats {
        gap: var(--spacing-xs);
    }

    .stat-number {
        font-size: 2rem;
    }

    .servizio-card {
        padding: var(--spacing-sm);
    }

    .servizio-icon {
        width: 60px;
        height: 60px;
        margin: 0 auto var(--spacing-sm);
    }

    .info-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .contatti-form {
        padding: var(--spacing-md);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-group {
        margin-bottom: var(--spacing-sm);
    }

    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-sm);
    }

    .footer-content {
        gap: var(--spacing-sm);
    }

    .social-links {
        justify-content: center;
    }

    /* Stack action buttons vertically on small mobile screens */
    .progetto-info div[style*="grid-template-columns: 1fr 1fr"] {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xs) !important;
    }

    .progetto-info .btn {
        font-size: 0.8rem !important;
        padding: 0.75rem 1rem !important;
        width: 100% !important;
        text-align: center !important;
    }
}