/* ============================================================
   SETE Milano — Design System
   Impianti Fotovoltaici | setemilano.it
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,500;1,600;1,700&display=swap');

/* ── Custom Properties ── */
:root {
  /* Colors — Tech/Blue Professional */
  --color-primary:      #4ade80;
  --color-primary-dark: #22c55e;
  --color-primary-light:#86efac;
  --color-secondary:    #4ade80;
  --color-secondary-dark:#22c55e;
  --color-accent:       #4ade80;
  --color-accent-dark:  #22c55e;
  --color-dark:         #14532d;
  --color-dark-alt:     #166534;
  --color-light:        #f8fafc;
  --color-light-alt:    #f1f5f9;
  --color-white:        #ffffff;
  --color-green:        #16a34a;
  --color-green-light:  #dcfce7;
  --color-red:          #dc2626;
  --color-text:         #1e293b;
  --color-text-light:   #64748b;
  --color-border:       #e2e8f0;
  --color-border-dark:  #cbd5e1;

  /* Typography */
  --font-heading: 'Playfair Display', 'Times New Roman', Georgia, serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing Scale (4px base) */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --max-width:       1200px;
  --header-height:   80px;
  --radius-sm:       6px;
  --radius:          10px;
  --radius-lg:       16px;
  --radius-full:     9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06);
  --shadow:     0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.12);
  --shadow-glow:0 4px 20px rgba(74,222,128,0.3);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition:      0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ── Focus ── */
:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
  border-radius: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ── Skip to Content ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 var(--radius) var(--radius);
  z-index: 10000;
  font-weight: 600;
  font-size: 0.9rem;
}
.skip-link:focus {
  top: 0;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-dark);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.85rem, 4vw, 2.65rem); font-weight: 600; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.55rem); font-weight: 600; }
h4 { font-size: 1.15rem; font-weight: 600; }

p + p { margin-top: 0.75rem; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ── Section ── */
.section {
  padding: var(--space-4xl) 0;
}

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

.section-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3,
.section-dark .section-subtitle {
  color: var(--color-white);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
  font-style: italic;
}

.section-header h2 span {
  color: var(--color-primary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.2;
}

.btn:active { transform: scale(0.97); }

/* Primary */
.btn-primary {
  background: var(--color-accent);
  color: var(--color-dark);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: 0 6px 24px rgba(245,158,11,0.35);
  transform: translateY(-2px);
}

/* Primary Blue */
.btn-blue {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-blue:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* Outline */
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-light:hover {
  background: var(--color-white);
  color: var(--color-dark);
  border-color: var(--color-white);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.55rem 1.25rem;
  font-size: 0.85rem;
}

/* ── Cards ── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: rgba(30,64,175,0.1);
  color: var(--color-primary);
}

.badge-accent {
  background: rgba(245,158,11,0.15);
  color: var(--color-accent-dark);
}

.badge-green {
  background: var(--color-green-light);
  color: var(--color-green);
}

/* ── Header / Navigation ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(34, 102, 51, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition);
}

.site-header.scrolled {
  background: rgba(34, 102, 51, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.2);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-white);
}

.header-logo img {
  height: 44px;
  width: 44px;
  object-fit: contain;
  border-radius: var(--radius);
}

.header-logo .logo-text {
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  color: var(--color-white);
}

.header-logo .logo-text small {
  display: block;
  font-weight: 400;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

.header-cta {
  margin-left: 1rem;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu button in nav */
.mobile-cta {
  display: none;
}

/* ── Hero ── */
/* Per cambiare la foto di sfondo: salva l'immagine come hero-bg.jpg
   nella stessa cartella del sito, oppure modifica il percorso qui sotto */
.hero {
  height: 100vh;
  max-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background-color: #f1f5f9;
  background-image: url('hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

/* Overlay sopra la foto per leggibilità testo */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(20,83,45,0.78) 0%, rgba(22,101,52,0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 80% 20%, rgba(74,222,128,0.12), transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(34,197,94,0.08), transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  color: var(--color-white);
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: rgba(245,158,11,0.15);
  color: var(--color-accent);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  line-height: 1.15;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.01em;
  font-style: italic;
}

.hero-content h1 span {
  color: var(--color-accent);
  font-style: italic;
}

.hero-content p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-xl);
  max-width: 540px;
}

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

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual svg {
  width: 100%;
  max-width: 500px;
  height: auto;
}

.hero-trust {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
}

.hero-trust-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-green);
  flex-shrink: 0;
}

/* ── Scroll Arrow ── */
.scroll-arrow {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  width: 48px;
  height: 48px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  animation: bounce-down 2s infinite;
}
.scroll-arrow svg {
  width: 22px;
  height: 22px;
}
.scroll-arrow:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-dark);
}
@keyframes bounce-down {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* Lock scroll on hero */
body.scroll-locked {
  overflow: hidden !important;
  height: 100vh !important;
  position: fixed !important;
  width: 100% !important;
  touch-action: none;
}
body.scroll-locked .hero {
  touch-action: auto;
}

/* ── Page Hero (internal pages) ── */
.page-hero {
  min-height: 45vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(160deg, #14532d 0%, #166534 60%, #14532d 100%);
  padding-top: var(--header-height);
  text-align: center;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.page-hero h1 span { color: var(--color-accent); font-style: italic; }

.page-hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.breadcrumb a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

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

.breadcrumb span { color: var(--color-accent); }

/* ── Grids ── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

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

/* ── Stats / KPI ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.stat-card {
  text-align: center;
  padding: var(--space-xl);
}

.stat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30,64,175,0.08);
  border-radius: var(--radius);
  color: var(--color-primary);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-weight: 500;
}

/* ── Service Cards ── */
.service-card {
  text-align: left;
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30,64,175,0.08);
  border-radius: var(--radius);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.service-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
  font-style: italic;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ── Feature rows ── */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-4xl);
}

.feature-row:last-child { margin-bottom: 0; }

.feature-row.reverse .feature-image { order: -1; }

.feature-image {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feature-image.placeholder {
  background:
    linear-gradient(135deg, rgba(30,64,175,0.06) 0%, rgba(59,130,246,0.04) 100%);
  border: 2px dashed var(--color-border);
}

.feature-image.placeholder svg {
  width: 120px;
  height: 120px;
  color: var(--color-border-dark);
  opacity: 0.5;
}

.feature-content h2 {
  margin-bottom: var(--space-md);
  text-align: left;
}

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

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.feature-list li svg {
  width: 22px;
  height: 22px;
  color: var(--color-green);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── Testimonials ── */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  font-size: 4rem;
  font-weight: 800;
  color: rgba(30,64,175,0.1);
  position: absolute;
  top: 0.5rem;
  left: 1.25rem;
  line-height: 1;
  font-family: Georgia, serif;
}

.stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.stars svg {
  width: 18px;
  height: 18px;
}

.testimonial-card p {
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  line-height: 1.65;
}

.testimonial-author {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-dark);
}

.testimonial-author span {
  display: block;
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ── CTA Banner ── */
.cta-banner {
  background:
    linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  text-align: center;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(34,197,94,0.2), transparent 60%);
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.cta-banner p {
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-xl);
  font-size: 1.05rem;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Certifications Grid ── */
.cert-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xl);
  align-items: center;
}

.cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  min-width: 150px;
  transition: all var(--transition);
}

.cert-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.cert-item svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  opacity: 0.7;
}

.cert-item span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-light);
  text-align: center;
}

/* ── Warranty Card ── */
.warranty-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow);
  border: 2px solid var(--color-accent);
  max-width: 700px;
  margin: var(--space-3xl) auto 0;
  text-align: center;
}

.warranty-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.warranty-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.warranty-list li strong {
  display: block;
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.warranty-list li span {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

/* ── Project Gallery ── */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-text-light);
  font-family: var(--font-body);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.project-image {
  height: 220px;
  background:
    linear-gradient(135deg, rgba(30,64,175,0.08), rgba(59,130,246,0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-image .project-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

.project-image svg {
  width: 64px;
  height: 64px;
  color: var(--color-border-dark);
  opacity: 0.4;
}

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

.project-body h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.project-body .project-location {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.project-stats {
  display: flex;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.project-stat {
  text-align: center;
}

.project-stat strong {
  display: block;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.project-stat span {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* ── FAQ ── */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-border-dark);
}

.faq-item summary {
  padding: var(--space-lg) var(--space-xl);
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  color: var(--color-dark);
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

details[open] summary::after {
  content: '\2013';
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--color-text-light);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* ── Contact Page ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-3xl);
  align-items: start;
}

.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
  color: var(--color-dark);
}

.form-group label .required {
  color: var(--color-red);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-dark);
  transition: all var(--transition-fast);
  background: var(--color-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30,64,175,0.1);
  background: var(--color-white);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--color-text-light);
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

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

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.contact-info-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-info-card h3 svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
}

.contact-info-card p,
.contact-info-card a {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.contact-info-card a:hover {
  color: var(--color-primary);
}

.map-placeholder {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--color-border);
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-weight: 500;
}

/* ── Footer ── */
.site-footer {
  background: linear-gradient(180deg, #14532d 0%, #0f3d21 100%);
  color: rgba(255,255,255,0.7);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-md);
}

.footer-logo img {
  height: 40px;
  width: 40px;
  object-fit: contain;
  border-radius: var(--radius);
}

.footer-logo span {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

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

.footer-contact {
  font-size: 0.9rem;
  line-height: 2;
}

.footer-contact strong {
  color: var(--color-white);
}

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

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.6);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.82rem;
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.45);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--color-accent);
}

/* ── Animations ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float { animation: float 5s ease-in-out infinite; }

/* ── Reduced Motion ── */
/* ── WhatsApp Floating Button ── */
.whatsapp-float {
  position: fixed;
  bottom: 90px;
  right: 24px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: all var(--transition);
  animation: pulse-wa 2s infinite;
}
.whatsapp-float svg {
  width: 28px;
  height: 28px;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(37,211,102,0.5);
}
@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 16px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 30px rgba(37,211,102,0.7); }
}

/* ── Back to Top ── */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  box-shadow: var(--shadow);
}
.back-to-top svg {
  width: 22px;
  height: 22px;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  cursor: pointer;
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}
.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  cursor: default;
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  background: none;
  border: none;
  color: white;
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  z-index: 1;
  transition: color var(--transition-fast);
}
.lightbox-close:hover { color: var(--color-accent); }

/* ── Active Nav ── */
.main-nav a.nav-active {
  color: #a3e635 !important;
  background: rgba(163,230,53,0.12) !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  :root {
    --space-4xl: 4rem;
    --space-3xl: 3rem;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content p { margin: 0 auto var(--space-xl); }
  .hero-buttons { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-visual { display: none; }

  .grid-3, .testimonial-grid, .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr !important; }
  .feature-row { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .feature-row.reverse .feature-image { order: 0; }
  .feature-image { min-height: 250px; }
  .warranty-list { grid-template-columns: repeat(3, 1fr); }
}

/* ── Slideshow ── */
.slideshow {
  position: relative;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.slideshow-track {
  display: flex;
  transition: transform 0.6s ease-in-out;
}

.slideshow-track img {
  width: calc(100% / 3);
  aspect-ratio: 4/3;
  object-fit: cover;
  flex-shrink: 0;
  border-right: 4px solid rgba(255,255,255,0.3);
}

@media (max-width: 768px) {
  .slideshow-track img {
    width: 100%;
  }
}

.slideshow-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 2;
}
.slideshow-btn svg {
  width: 22px;
  height: 22px;
}
.slideshow-btn:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-50%) scale(1.1);
}
.slideshow-prev { left: 16px; }
.slideshow-next { right: 16px; }

.slideshow-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}
.slideshow-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-fast);
}
.slideshow-dots button.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.3);
}

/* ── Gallery ── */
.gallery-item {
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
}
.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}


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

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

/* ── Contact form + map grid ── */
.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

@media (max-width: 768px) {
  .contact-row {
    grid-template-columns: 1fr;
  }
  .contact-row .map-col {
    min-height: 300px !important;
  }

  :root {
    --header-height: 70px;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
    --space-2xl: 2rem;
  }

  /* Mobile Nav */
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: var(--color-dark);
    padding: 5rem var(--space-xl) var(--space-xl);
    gap: 0.5rem;
    transition: right var(--transition);
    box-shadow: -4px 0 20px rgba(0,0,0,0.3);
  }

  .main-nav.open {
    right: 0;
  }

  .main-nav a {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }

  .hamburger { display: flex; }
  .header-cta { display: none; }
  .mobile-cta {
    display: block;
    margin-top: var(--space-lg);
    width: 100%;
  }

  .grid-2, .grid-3, .grid-4,
  .testimonial-grid, .project-grid,
  .stats-grid, .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-content h1 { font-size: 2rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .form-row { grid-template-columns: 1fr; }
  .warranty-list { grid-template-columns: 1fr; gap: var(--space-md); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }
  .filter-bar { gap: 0.4rem; }
  .filter-btn { padding: 0.4rem 1rem; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-lg); }
  .hero { min-height: 90vh; }
  .section { padding: var(--space-3xl) 0; }
  .cta-banner { padding: var(--space-xl); }
}