/* 
  Theme: Premium Industrial (Light Mode) 
  Brand: EFFEDUE MARMI E TRAVERTINI S.R.L.S
*/

:root {
  --clr-bg: #FDFBFA; /* Warm alabaster / Off-white marble tone */
  --clr-bg-alt: #F4F1ED; /* Slightly darker for contrast sections */
  --clr-surface: #FFFFFF;
  --clr-text-main: #1A1D21; /* Deep charcoal */
  --clr-text-muted: #5C6168; /* Slate gray */
  --clr-accent: #C5A059; /* Brushed Brass / Gold */
  --clr-accent-hover: #A88645;
  --clr-border: #E8E6E1;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --spacing-sm: 0.5rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 3rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 10rem;

  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 24px;

  --trans-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --trans-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--clr-bg);
  color: var(--clr-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--clr-accent);
  color: var(--clr-surface);
}

/* Noise overlay */
.bg-noise {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-accent {
  color: var(--clr-accent);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--trans-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--clr-text-main);
  color: var(--clr-surface);
  border: 1px solid var(--clr-text-main);
}

.btn-primary:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  border-color: var(--clr-text-main);
  background: var(--clr-text-main);
  color: var(--clr-surface);
  transform: translateY(-2px);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 1.5rem 0;
  background: rgba(253, 251, 250, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: border-color var(--trans-fast), padding var(--trans-fast);
}

.navbar.scrolled {
  padding: 1rem 0;
  border-bottom: 1px solid var(--clr-border);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--clr-text-main);
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  display: block;
}



.logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9rem;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--clr-text-main);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--trans-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--clr-accent);
  transition: width var(--trans-fast);
}

.nav-link:hover::after {
  width: 100%;
}

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

.nav-btn {
  padding: 0.75rem 1.5rem;
}

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

/* Mobile Overlay */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--clr-bg);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transform: translateY(-100%);
  transition: transform var(--trans-slow);
}

.mobile-menu-overlay.active {
  transform: translateY(0);
}

.close-menu-btn {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--clr-text-main);
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-nav-links a {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 600;
  color: var(--clr-text-main);
  text-decoration: none;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--clr-text-main);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--clr-text-muted);
  margin-bottom: 3rem;
  max-width: 650px;
  margin-inline: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Abstract visual background elements */
.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.marble-block {
  position: absolute;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  box-shadow: 0 20px 40px rgba(0,0,0,0.03);
}

.block-1 {
  width: 40vw; height: 60vh;
  top: -10vh; right: -10vw;
  transform: rotate(-15deg);
}

.block-2 {
  width: 30vw; height: 50vh;
  bottom: -20vh; left: -5vw;
  transform: rotate(25deg);
  background: var(--clr-bg-alt);
}

/* Sections */
.section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
}

.bg-light-gray {
  background-color: var(--clr-bg-alt);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  font-size: 1.25rem;
  color: var(--clr-text-muted);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.stat-card {
  background: var(--clr-surface);
  padding: 2rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat-icon {
  font-size: 2.5rem;
  color: var(--clr-accent);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  display: block;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
}

/* Services */
.services-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.services-header .section-subtitle {
  font-size: 1.2rem;
  color: var(--clr-text-muted);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  position: relative;
  background: var(--clr-surface);
  padding: 3rem 2rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  transition: transform var(--trans-fast), box-shadow var(--trans-fast);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(0,0,0,0.06);
  border-color: var(--clr-accent);
}

.service-icon {
  font-size: 2.5rem;
  color: var(--clr-text-main);
  margin-bottom: 2rem;
  transition: color var(--trans-fast);
}

.service-card:hover .service-icon {
  color: var(--clr-accent);
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-desc {
  color: var(--clr-text-muted);
  flex-grow: 1;
}

.service-hover-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--trans-fast);
}

.service-card:hover .service-hover-bar {
  transform: scaleX(1);
}

/* Footer / Contacts */
.footer {
  background: var(--clr-text-main);
  color: var(--clr-surface);
  padding: var(--spacing-xl) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-logo {
  color: var(--clr-surface);
  margin-bottom: 1.5rem;
}

.footer-logo .logo-mark {
  background: var(--clr-accent);
}

.footer-desc {
  color: #A0A5AD;
  max-width: 400px;
}

.footer-heading {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--clr-accent);
}

.footer address {
  font-style: normal;
  color: #A0A5AD;
  margin-bottom: 1rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-link {
  color: var(--clr-surface);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--trans-fast);
}

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

.footer-legal p {
  color: #A0A5AD;
  margin-bottom: 0.5rem;
}

.footer-legal .vat {
  color: var(--clr-surface);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.5rem 0;
  text-align: center;
  color: #A0A5AD;
  font-size: 0.9rem;
}

/* Animations using GSAP-like classes or IO fallback */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-up.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 1s ease-out, transform 1s ease-out;
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Responsive */
@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding-top: 6rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }
}