/*
  fotovoltaico.space - Custom Stylesheet
  Tecnologie: Bootstrap 5.3, jQuery, AOS, Owl Carousel, Fancybox
  Palette derivata dal LOGO: Navy #0d3b80, Azzurro #1e9bf0 (".space"/orbita),
  Oro/Sole #f7a91e, Light #f5f8fc, Dark #0f1b33, White #ffffff
*/

/* =====================================================
   CSS CUSTOM PROPERTIES (VARIABILI BRAND - DAL LOGO)
   ===================================================== */
:root {
  --primary: #0d3b80;          /* blu navy del pannello e della scritta "fotovoltaico" */
  --primary-dark: #082a5e;
  --primary-light: #e6effa;
  --sky: #1e9bf0;              /* azzurro brillante del ".space" e dell'orbita */
  --sky-dark: #1583d4;
  --sky-light: #e4f3fe;
  --secondary: #f7a91e;        /* oro/arancio del sole */
  --secondary-dark: #e08f0a;
  --gold: #ffd000;             /* giallo dei raggi del sole */
  --gold-light: #fff4d6;
  /* Manteniamo accent come alias dell'azzurro per compatibilità con le regole esistenti */
  --accent: #1e9bf0;
  --accent-light: #e4f3fe;
  --light: #f5f8fc;
  --dark: #0f1b33;
  --white: #ffffff;
  --gray: #5c6b82;
  --gray-light: #e6ecf3;
  --font-title: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --transition: all 0.3s ease;
  --shadow-sm: 0 2px 8px rgba(13, 59, 128, 0.06);
  --shadow: 0 10px 30px rgba(13, 59, 128, 0.08);
  --shadow-lg: 0 20px 50px rgba(13, 59, 128, 0.14);
  --radius: 16px;
  --gradient-brand: linear-gradient(135deg, var(--primary) 0%, var(--sky) 100%);
  --gradient-sun: linear-gradient(135deg, var(--gold) 0%, var(--secondary) 100%);
}

/* =====================================================
   BASE & RESET
   ===================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--dark);
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.3;
  color: var(--dark);
}

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

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

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

.section-padding {
  padding: 90px 0;
}

@media (max-width: 991.98px) {
  .section-padding {
    padding: 60px 0;
  }
}

/* =====================================================
   BOOTSTRAP OVERRIDE - COLORI BRAND
   ===================================================== */
.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transition: var(--transition);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background-color: var(--primary-dark) !important;
  border-color: var(--primary-dark) !important;
  color: var(--white) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background-color: var(--secondary);
  border-color: var(--secondary);
  color: var(--dark);
  font-weight: 600;
  transition: var(--transition);
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
  background-color: var(--secondary-dark) !important;
  border-color: var(--secondary-dark) !important;
  color: var(--dark) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

.text-primary {
  color: var(--primary) !important;
}

.bg-light {
  background-color: var(--light) !important;
}

/* =====================================================
   LOADING SPINNER
   ===================================================== */
.loader-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--white);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.spinner-wrapper {
  text-align: center;
  color: var(--primary);
}

.spinner-border {
  width: 3rem;
  height: 3rem;
  border-width: 0.25em;
}

/* =====================================================
   NAVBAR
   ===================================================== */
#mainNav {
  padding: 18px 0;
  background: transparent;
  transition: var(--transition);
  z-index: 1030;
}

#mainNav.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

#mainNav .navbar-brand img {
  transition: var(--transition);
}

#mainNav .nav-link {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
  margin: 0 10px;
  position: relative;
  padding: 6px 0;
}

#mainNav.scrolled .nav-link {
  color: var(--dark);
}

#mainNav .nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--secondary);
  transition: var(--transition);
}

#mainNav .nav-link:hover::after,
#mainNav .nav-link.active::after {
  width: 100%;
}

#mainNav .nav-link:hover,
#mainNav .nav-link.active {
  color: var(--secondary);
}

#mainNav.scrolled .nav-link:hover,
#mainNav.scrolled .nav-link.active {
  color: var(--primary);
}

#mainNav .navbar-toggler {
  border: none;
  padding: 0;
  color: var(--white);
}

#mainNav.scrolled .navbar-toggler {
  color: var(--dark);
}

#mainNav .navbar-toggler:focus {
  box-shadow: none;
}

#mainNav .navbar-toggler-icon {
  width: 1.8em;
  height: 1.8em;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

#mainNav.scrolled .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2826, 26, 26, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

#mainNav .nav-cta {
  padding: 8px 22px;
}

@media (max-width: 991.98px) {
  #mainNav .navbar-collapse {
    background: var(--white);
    border-radius: var(--radius);
    padding: 15px 20px;
    margin-top: 15px;
    box-shadow: var(--shadow);
  }

  #mainNav .nav-link {
    color: var(--dark);
    margin: 8px 0;
  }

  #mainNav .nav-cta {
    margin-top: 10px;
    width: 100%;
  }
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 100px;
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: zoomSlow 20s ease-in-out infinite alternate;
}

@keyframes zoomSlow {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(8, 42, 94, 0.92) 0%, rgba(13, 59, 128, 0.78) 45%, rgba(30, 155, 240, 0.55) 100%);
  z-index: 1;
}

.hero-section .container {
  z-index: 2;
}

.hero-pretitle {
  font-family: var(--font-title);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--secondary);
  font-size: 0.95rem;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--white);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  max-width: 800px;
  color: rgba(255, 255, 255, 0.9);
}

.hero-buttons .btn {
  padding: 14px 32px;
  font-weight: 600;
}

/* Scroll down indicator */
.scroll-down {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  font-size: 1.5rem;
  z-index: 2;
  animation: bouncePulse 2s infinite;
}

@keyframes bouncePulse {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-12px); }
  60% { transform: translateX(-50%) translateY(-6px); }
}

.scroll-down:hover {
  color: var(--secondary);
}

/* =====================================================
   SECTION HEADERS
   ===================================================== */
.section-tag {
  display: inline-block;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 15px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 15px;
  color: var(--dark);
}

.section-subtitle {
  color: var(--gray);
  max-width: 650px;
  font-size: 1.05rem;
}

/* =====================================================
   STATS COUNTER
   ===================================================== */
.stats-section {
  background-color: var(--white);
}

.stat-box {
  padding: 30px 20px;
  border-radius: var(--radius);
  background-color: var(--white);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-bottom: 4px solid var(--primary);
}

.stat-box:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  font-size: 2.2rem;
  color: var(--secondary);
  margin-bottom: 15px;
  display: inline-block;
}

.stat-number {
  font-family: var(--font-title);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 10px;
}

.stat-label {
  color: var(--gray);
  font-weight: 600;
  margin-bottom: 0;
}

/* =====================================================
   SERVICES CARDS
   ===================================================== */
.services-section {
  background-color: var(--light);
}

.service-card {
  background-color: var(--white);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.service-icon {
  width: 80px;
  height: 80px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 2rem;
  border-radius: 50%;
  margin-bottom: 22px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotateY(360deg);
}

.service-title {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--dark);
}

.service-text {
  color: var(--gray);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* =====================================================
   WHY SECTION
   ===================================================== */
.why-section {
  background-color: var(--white);
}

.why-image {
  position: relative;
}

.why-image img {
  width: 100%;
  object-fit: cover;
}

.experience-badge {
  position: absolute;
  bottom: -25px;
  right: 30px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius);
  padding: 20px 30px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.exp-years {
  display: block;
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

.exp-text {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.why-list {
  margin-top: 30px;
}

.why-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 22px;
}

.why-check {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  margin-right: 16px;
  margin-top: 3px;
  animation: pulseCheck 2s infinite;
}

@keyframes pulseCheck {
  0% { box-shadow: 0 0 0 0 rgba(30, 155, 240, 0.45); }
  70% { box-shadow: 0 0 0 12px rgba(30, 155, 240, 0); }
  100% { box-shadow: 0 0 0 0 rgba(30, 155, 240, 0); }
}

.why-item h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
  color: var(--dark);
}

.why-item p {
  margin-bottom: 0;
  color: var(--gray);
  font-size: 0.95rem;
}

@media (max-width: 991.98px) {
  .experience-badge {
    right: 10px;
    bottom: -15px;
    padding: 15px 20px;
  }

  .exp-years {
    font-size: 2rem;
  }
}

/* =====================================================
   PRODUCTS CAROUSEL
   ===================================================== */
.products-section {
  background-color: var(--white);
}

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-light);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  position: relative;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.product-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--secondary);
  color: var(--dark);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 50px;
}

.product-body {
  padding: 25px;
}

.product-title {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: var(--dark);
}

.product-specs {
  color: var(--gray);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.product-specs i {
  color: var(--primary);
}

/* Owl Carousel dots custom */
.owl-theme .owl-dots .owl-dot span {
  background: var(--gray-light);
  width: 12px;
  height: 12px;
}

.owl-theme .owl-dots .owl-dot.active span,
.owl-theme .owl-dots .owl-dot:hover span {
  background: var(--primary);
}

.owl-nav button.owl-prev,
.owl-nav button.owl-next {
  background: var(--primary) !important;
  color: var(--white) !important;
  border-radius: 50% !important;
  width: 40px;
  height: 40px;
  font-size: 1.2rem !important;
}

/* =====================================================
   GALLERY SECTION
   ===================================================== */
.gallery-section {
  background-color: var(--light);
}

.btn-filter {
  background: var(--white);
  color: var(--dark);
  border: 1px solid var(--gray-light);
  border-radius: 50px;
  padding: 8px 22px;
  margin: 5px;
  font-weight: 600;
  transition: var(--transition);
}

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

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

.gallery-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13, 59, 128, 0.78);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.gallery-overlay i {
  color: var(--white);
  font-size: 2rem;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-item.hidden-item {
  display: none;
}

/* =====================================================
   TESTIMONIALS
   ===================================================== */
.testimonials-section {
  background-color: var(--accent-light);
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  margin: 10px;
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow);
}

.testimonial-header {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 15px;
  border: 3px solid var(--primary-light);
}

.testimonial-name {
  font-size: 1.1rem;
  margin-bottom: 2px;
  color: var(--dark);
}

.testimonial-city {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.testimonial-rating {
  color: var(--secondary);
}

.testimonial-text {
  color: var(--gray);
  font-style: italic;
  margin-bottom: 0;
}

/* =====================================================
   CTA BANNER
   ===================================================== */
.cta-banner {
  background: var(--primary);
  color: var(--white);
}

.cta-title {
  color: var(--white);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
}

.cta-text {
  color: rgba(255, 255, 255, 0.85);
}

.cta-banner .btn-outline-light {
  border-width: 2px;
  font-weight: 600;
  padding: 12px 30px;
}

/* =====================================================
   FAQ ACCORDION
   ===================================================== */
.faq-section {
  background-color: var(--light);
}

.accordion-item {
  border: none;
  border-radius: 12px;
  margin-bottom: 15px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.accordion-button {
  font-family: var(--font-title);
  font-weight: 700;
  color: var(--dark);
  padding: 22px 25px;
  background-color: var(--white);
  border: none;
  box-shadow: none;
}

.accordion-button:not(.collapsed) {
  background-color: var(--primary-light);
  color: var(--primary);
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: none;
  border-color: transparent;
}

.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230d3b80'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-body {
  padding: 20px 25px;
  color: var(--gray);
  background-color: var(--white);
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact-section {
  background-color: var(--white);
}

.contact-form-wrapper {
  border: 1px solid var(--gray-light);
}

.form-label {
  font-weight: 600;
  color: var(--dark);
}

.form-control,
.form-select {
  border-radius: 10px;
  padding: 12px 16px;
  border: 1px solid var(--gray-light);
  transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(13, 59, 128, 0.15);
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: #dc3545;
}

.contact-info h3 {
  color: var(--primary);
  font-size: 1.6rem;
}

.contact-list {
  margin-bottom: 25px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 22px;
}

.contact-icon {
  flex-shrink: 0;
  width: 45px;
  height: 45px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  margin-right: 16px;
  font-size: 1.1rem;
}

.contact-item h5 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-item p {
  margin-bottom: 0;
  color: var(--gray);
}

.contact-item a {
  color: var(--gray);
}

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

.map-wrapper iframe {
  width: 100%;
  border-radius: 12px;
}

#formFeedback {
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
}

#formFeedback.success {
  background: #d1e7dd;
  color: #0f5132;
}

#formFeedback.error {
  background: #f8d7da;
  color: #842029;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer-section {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
}

.footer-section h4,
.footer-section a {
  color: var(--white);
}

.footer-title {
  font-size: 1.1rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: var(--secondary);
}

.footer-links li,
.footer-contact li {
  margin-bottom: 10px;
}

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

.footer-links a:hover {
  color: var(--secondary);
  padding-left: 5px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin-right: 10px;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--secondary);
  color: var(--dark);
  transform: translateY(-3px);
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: 40px 0 20px;
}

.footer-bottom p {
  font-size: 0.9rem;
}

/* =====================================================
   BACK TO TOP
   ===================================================== */
.back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 46px;
  height: 46px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 1020;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--secondary);
  color: var(--dark);
  transform: translateY(-4px);
}

/* =====================================================
   UTILITY / ACCESSIBILITY
   ===================================================== */
.z-2 {
  z-index: 2;
}

::selection {
  background: var(--secondary);
  color: var(--dark);
}

:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* =====================================================
   RESPONSIVE ADJUSTMENTS
   ===================================================== */
@media (max-width: 767.98px) {
  .hero-section {
    min-height: auto;
    padding: 130px 0 100px;
  }

  .hero-buttons .btn {
    display: block;
    width: 100%;
    margin: 0 0 12px 0 !important;
  }

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

  .experience-badge {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 20px;
    display: inline-block;
  }

  .cta-banner .btn-outline-light {
    width: 100%;
  }
}

@media (min-width: 992px) {
  .navbar-expand-lg .navbar-nav .nav-link {
    padding-right: 0;
    padding-left: 0;
  }
}


/* =====================================================
   UI/UX PREMIUM ENHANCEMENTS
   Effetti avanzati, glassmorphism, micro-interazioni
   ===================================================== */

/* Loader premium */
#loader .spinner-border {
  width: 3.5rem;
  height: 3.5rem;
  border-width: 0.2em;
  border-color: var(--primary-light);
  border-right-color: var(--secondary);
  animation: spinner-grow 1s linear infinite;
}

@keyframes spinner-grow {
  0% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.1) rotate(180deg); }
  100% { transform: scale(1) rotate(360deg); }
}

/* Navbar premium glassmorphism */
#mainNav.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

#mainNav .nav-link {
  letter-spacing: 0.5px;
  transition: color 0.3s ease, transform 0.3s ease;
}

#mainNav .nav-link:hover {
  transform: translateY(-2px);
}

/* Hero enhancements */
.hero-section {
  position: relative;
}

.hero-section::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, rgba(248, 249, 250, 1), transparent);
  z-index: 2;
}

.hero-title {
  background: linear-gradient(135deg, #ffffff 0%, var(--gold) 55%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

.hero-pretitle {
  position: relative;
  display: inline-block;
}

.hero-pretitle::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: var(--secondary);
  margin: 10px auto 0;
  border-radius: 3px;
}

/* Premium buttons with glow */
.btn-primary,
.btn-secondary {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::before,
.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.6s ease;
  z-index: -1;
}

.btn-primary:hover::before,
.btn-secondary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  box-shadow: 0 8px 25px rgba(13, 59, 128, 0.4);
}

.btn-secondary:hover {
  box-shadow: 0 8px 25px rgba(244, 166, 32, 0.4);
}

/* Decorative section shapes */
.section-padding {
  position: relative;
}

.services-section::before,
.products-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
}

.why-section::after,
.testimonials-section::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, var(--accent-light) 0%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}

/* Stats premium glass cards */
.stat-box {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(13, 59, 128, 0.08);
  position: relative;
  overflow: hidden;
}

.stat-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.stat-icon {
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  width: 70px;
  height: 70px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: transform 0.5s ease;
  margin-bottom: 15px;
}

.stat-box:hover .stat-icon {
  transform: scale(1.1) rotate(10deg);
}

/* Service cards premium */
.service-card {
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
  border: 1px solid rgba(0, 0, 0, 0.04);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(13, 59, 128, 0.14);
}

.service-icon {
  background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 100%);
  box-shadow: 0 8px 20px rgba(13, 59, 128, 0.12);
}

/* Why section premium */
.why-image {
  position: relative;
}

.why-image::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  border: 3px solid var(--secondary);
  border-radius: var(--radius);
  z-index: -1;
}

.experience-badge {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
}

/* Product cards premium */
.product-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(13, 59, 102, 0.12);
}

.product-badge {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  box-shadow: 0 4px 12px rgba(244, 166, 32, 0.3);
}

/* Gallery premium overlay */
.gallery-overlay {
  background: linear-gradient(135deg, rgba(13, 59, 128, 0.88), rgba(30, 155, 240, 0.82));
}

.gallery-overlay i {
  width: 60px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  border: 2px solid rgba(255,255,255,0.8);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay i {
  transform: scale(1.1);
}

/* Testimonials premium */
.testimonial-card {
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
  border: 1px solid rgba(0, 0, 0, 0.04);
  position: relative;
  padding: 35px;
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 18px;
  right: 28px;
  font-family: Georgia, serif;
  font-size: 4rem;
  color: var(--primary-light);
  line-height: 1;
  pointer-events: none;
  opacity: 0.7;
}

.testimonial-header {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.testimonial-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 20px;
  border: 4px solid var(--white);
  box-shadow: 0 8px 25px rgba(13, 59, 102, 0.2);
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 1.15rem;
  margin-bottom: 3px;
  color: var(--dark);
}

.testimonial-city {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.testimonial-rating {
  color: var(--secondary);
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.testimonial-text {
  color: var(--gray);
  font-style: italic;
  margin-bottom: 0;
  line-height: 1.7;
}

/* CTA banner premium */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(244, 166, 32, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner .btn-outline-light {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.cta-banner .btn-outline-light:hover {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

/* FAQ premium */
.accordion-item {
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.accordion-button:not(.collapsed) {
  background: linear-gradient(90deg, var(--primary-light), #ffffff);
}

.accordion-button::after {
  transition: transform 0.3s ease;
}

/* Contact form premium */
.contact-form-wrapper {
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.form-control:focus,
.form-select:focus {
  box-shadow: 0 0 0 4px rgba(13, 59, 128, 0.12);
}

.contact-icon {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
}

/* Back to top premium */
.back-to-top {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  box-shadow: 0 8px 25px rgba(13, 59, 128, 0.35);
}

.back-to-top:hover {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  box-shadow: 0 12px 30px rgba(244, 166, 32, 0.4);
}

/* Footer premium */
.footer-section {
  background: linear-gradient(180deg, var(--dark) 0%, #0f0f0f 100%);
}

.social-links a {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-links a:hover {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  border-color: var(--secondary);
}

/* Section tag premium */
.section-tag {
  background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 100%);
  border: 1px solid rgba(13, 59, 128, 0.1);
  box-shadow: 0 2px 8px rgba(13, 59, 128, 0.06);
}

/* Smooth reveal animation for hidden items */
.gallery-item.hidden-item {
  display: none;
}

/* Enhanced focus states */
.form-control:focus,
.form-select:focus,
.accordion-button:focus,
.btn:focus {
  outline: none;
}

/* Premium scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--light);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-dark), var(--accent));
}

/* Mobile premium adjustments */
@media (max-width: 991.98px) {
  #mainNav .navbar-collapse {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 0, 0, 0.05);
  }

  .why-image::before {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .experience-badge {
    padding: 12px 18px;
  }

  .exp-years {
    font-size: 1.6rem;
  }
}


/* =====================================================
   CARD CON IMMAGINE DI SFONDO + OVERLAY NERO SFUMATO
   ===================================================== */
.card-img-bg {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--white);
  border: none !important;
  overflow: hidden;
  isolation: isolate;
}

.card-img-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.82) 100%);
  z-index: 0;
  transition: background 0.5s ease;
}

.card-img-bg:hover::before {
  background: linear-gradient(180deg, rgba(13, 59, 102, 0.45) 0%, rgba(0, 0, 0, 0.92) 100%);
}

.card-img-bg > * {
  position: relative;
  z-index: 2;
}

.card-img-bg .service-icon {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.card-img-bg:hover .service-icon {
  background: var(--secondary);
  color: var(--dark);
  border-color: var(--secondary);
}

.card-img-bg .service-title,
.card-img-bg .service-text,
.card-img-bg h3,
.card-img-bg p {
  color: var(--white);
}

.card-img-bg .service-text {
  opacity: 0.9;
}

/* =====================================================
   BLU DEL LOGO COME COLORE PRINCIPALE - OVERRIDES
   ===================================================== */
/* Già gestito dalle variabili CSS in alto; qui eventuali accenti verdi rimangono solo come tocco di contrasto */


/* =====================================================
   HERO VIDEO BACKGROUND
   ===================================================== */
.hero-bg-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 0;
}

/* Su mobile il video potrebbe consumare troppa batteria: mostra il poster */
@media (max-width: 767.98px) {
  .hero-bg-video {
    display: none;
  }

  .hero-bg {
    background: url('../assets/img/hero-bg.jpg') center/cover no-repeat;
  }
}

/* =====================================================
   HERO WAVE EFFECT
   ===================================================== */
.hero-wave {
  position: relative;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-top: -1px;
  z-index: 3;
}

.hero-wave svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 120px;
}

.hero-wave path {
  fill: var(--white);
}

@media (max-width: 767.98px) {
  .hero-wave svg {
    height: 70px;
  }
}


/* =====================================================
   TESTIMONIALS REDESIGN 200% - LAYOUT VERTICALE PREMIUM
   ===================================================== */
.testimonials-section {
  background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 50%, var(--accent-light) 100%);
  position: relative;
  overflow: hidden;
}

.testimonials-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(244, 166, 32, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.testimonials-section::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -120px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(13, 59, 102, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 24px;
  padding: 45px 30px 40px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(13, 59, 102, 0.08);
  margin: 15px 10px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.testimonial-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 30px 70px rgba(13, 59, 102, 0.15);
  border-color: var(--secondary);
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 15px;
  left: 22px;
  font-family: Georgia, serif;
  font-size: 5rem;
  color: var(--primary-light);
  line-height: 1;
  pointer-events: none;
  opacity: 0.6;
}

.testimonial-avatar-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 20px;
}

.testimonial-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--white);
  box-shadow: 0 10px 30px rgba(13, 59, 102, 0.2);
}

.verified-badge {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  color: var(--dark);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  border: 3px solid var(--white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.testimonial-name {
  font-size: 1.25rem;
  margin-bottom: 4px;
  color: var(--dark);
}

.testimonial-city {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.testimonial-rating {
  color: var(--secondary);
  font-size: 1rem;
  margin-bottom: 18px;
  letter-spacing: 3px;
}

.testimonial-text {
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 0;
  font-style: normal;
}

/* Owl Carousel testimonials - center mode */
.testimonials-carousel .owl-stage {
  display: flex;
  align-items: stretch;
}

.testimonials-carousel .owl-item {
  opacity: 0.6;
  transform: scale(0.92);
  transition: all 0.4s ease;
}

.testimonials-carousel .owl-item.active {
  opacity: 1;
  transform: scale(1);
}

.testimonials-carousel .owl-item.active.center {
  transform: scale(1.05);
  z-index: 2;
}

@media (max-width: 767.98px) {
  .testimonial-card {
    padding: 35px 22px 30px;
  }

  .testimonial-avatar {
    width: 85px;
    height: 85px;
  }

  .testimonial-card::before {
    font-size: 3.5rem;
  }
}


/* =====================================================
   SCROLL PROGRESS BAR (EFFETTO WOW IN ALTO)
   ===================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, var(--secondary) 0%, var(--gold) 30%, var(--sky) 70%, var(--primary) 100%);
  z-index: 2000;
  border-radius: 0 4px 4px 0;
  box-shadow: 0 0 12px rgba(30, 155, 240, 0.6);
  transition: width 0.1s linear;
}

/* =====================================================
   LOGO PIÙ GRANDE (+26%) E UX NAVBAR
   ===================================================== */
#mainNav .navbar-brand img {
  height: 57px;          /* da 45px -> +26% */
  width: auto;
  transition: var(--transition);
  /* In cima (sopra l'hero scuro): logo tutto bianco */
  filter: brightness(0) invert(1) drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
}

#mainNav.scrolled .navbar-brand img {
  height: 50px;          /* leggera riduzione da scrollato, resta più grande dell'originale */
  /* Scrollato (navbar chiara): logo a colori originali */
  filter: none;
}

.footer-section .navbar-brand img,
.footer-section img[alt="fotovoltaico.space"] {
  height: 57px;          /* footer logo +26% */
  width: auto;
}

/* Pretitle hero leggibile su qualsiasi sfondo */
.hero-pretitle {
  color: var(--gold);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

/* CTA navbar: pill con gradiente brand */
#mainNav .nav-cta {
  background: var(--gradient-sun);
  border: none;
  color: var(--dark) !important;
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(247, 169, 30, 0.35);
}

#mainNav .nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(247, 169, 30, 0.5);
}

/* Hero buttons: il primario "preventivo" diventa solare/azzurro */
.hero-buttons .btn-secondary {
  background: var(--gradient-sun);
  border: none;
}

/* Reveal extra per elementi marcati via JS (oltre ad AOS) */
.reveal-up {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* =====================================================
   PREVENTIVO WIZARD MODAL (EFFETTO WOW)
   ===================================================== */
.preventivo-modal .modal-dialog {
  max-width: 720px;
}

.preventivo-modal .modal-content {
  border: none;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 40px 90px rgba(13, 59, 128, 0.35);
}

.preventivo-modal .modal-body {
  padding: 0;
}

/* Header del wizard */
.wizard-head {
  background: var(--gradient-brand);
  color: var(--white);
  padding: 26px 32px 20px;
  position: relative;
  overflow: hidden;
}

.wizard-head::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255, 208, 0, 0.28) 0%, transparent 70%);
  pointer-events: none;
}

.wizard-head .btn-close {
  position: absolute;
  top: 18px;
  right: 20px;
  filter: invert(1) brightness(2);
  opacity: 0.9;
}

.wizard-title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--white);
  margin: 0;
}

.wizard-subtitle {
  margin: 4px 0 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
}

/* Step indicator */
.wizard-steps {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  position: relative;
  z-index: 1;
}

.wizard-steps .step-dot {
  flex: 1;
  height: 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.28);
  transition: background 0.4s ease;
}

.wizard-steps .step-dot.active {
  background: var(--gold);
}

.wizard-step-label {
  margin-top: 10px;
  font-size: 0.82rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
}

/* Body steps */
.wizard-body {
  padding: 30px 32px 10px;
}

.wizard-step {
  display: none;
  animation: wizardFade 0.45s ease;
}

.wizard-step.active {
  display: block;
}

@keyframes wizardFade {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}

.wizard-question {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--dark);
  margin-bottom: 6px;
}

.wizard-hint {
  color: var(--gray);
  font-size: 0.92rem;
  margin-bottom: 20px;
}

/* Card selezionabili */
.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.option-card {
  border: 2px solid var(--gray-light);
  border-radius: 14px;
  padding: 20px 18px;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
  background: var(--white);
  user-select: none;
}

.option-card:hover {
  border-color: var(--sky);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.option-card.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 8px 24px rgba(13, 59, 128, 0.18);
}

.option-card i {
  font-size: 1.9rem;
  color: var(--primary);
  margin-bottom: 10px;
  display: block;
}

.option-card.selected i {
  color: var(--sky-dark);
}

.option-card .opt-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark);
  display: block;
}

.option-card .opt-desc {
  font-size: 0.8rem;
  color: var(--gray);
  display: block;
  margin-top: 3px;
}

/* Pill selezionabili (singola riga) */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-option {
  border: 2px solid var(--gray-light);
  border-radius: 50px;
  padding: 10px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--dark);
  transition: var(--transition);
  background: var(--white);
  user-select: none;
}

.pill-option:hover {
  border-color: var(--sky);
}

.pill-option.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Footer di navigazione */
.wizard-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px 32px 28px;
  border-top: 1px solid var(--gray-light);
  margin-top: 16px;
}

.wizard-foot .btn {
  border-radius: 50px;
  padding: 11px 28px;
  font-weight: 700;
}

.btn-wizard-next {
  background: var(--gradient-brand);
  border: none;
  color: var(--white);
}

.btn-wizard-next:hover {
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(13, 59, 128, 0.35);
}

.btn-wizard-back {
  background: transparent;
  border: none;
  color: var(--gray);
  font-weight: 600;
}

.btn-wizard-back:hover {
  color: var(--primary);
}

.btn-wizard-back.invisible {
  visibility: hidden;
}

/* Stima risparmio (effetto wow) */
.estimate-box {
  background: var(--gradient-brand);
  color: var(--white);
  border-radius: 18px;
  padding: 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}

.estimate-box::after {
  content: '';
  position: absolute;
  bottom: -50px;
  left: -30px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 208, 0, 0.3) 0%, transparent 70%);
}

.estimate-label {
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  opacity: 0.9;
  margin-bottom: 4px;
}

.estimate-value {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--gold);
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.estimate-sub {
  font-size: 0.9rem;
  opacity: 0.9;
  margin: 8px 0 0;
}

.summary-list {
  list-style: none;
  padding: 0;
  margin: 0 0 6px;
}

.summary-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--gray-light);
  font-size: 0.95rem;
}

.summary-list li span:first-child {
  color: var(--gray);
}

.summary-list li span:last-child {
  font-weight: 700;
  color: var(--dark);
  text-align: right;
}

/* Schermata di successo */
.wizard-success {
  text-align: center;
  padding: 30px 10px 10px;
}

.wizard-success .success-icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--gradient-sun);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  margin-bottom: 18px;
  box-shadow: 0 10px 30px rgba(247, 169, 30, 0.4);
  animation: successPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.6);
}

@keyframes successPop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

.wizard-input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.wizard-body .form-control,
.wizard-body .form-select {
  border-radius: 10px;
}

@media (max-width: 575.98px) {
  .option-grid,
  .wizard-input-row {
    grid-template-columns: 1fr;
  }

  .wizard-body,
  .wizard-head,
  .wizard-foot {
    padding-left: 20px;
    padding-right: 20px;
  }

  .estimate-value {
    font-size: 2.2rem;
  }
}


/* =====================================================
   OTTIMIZZAZIONE MOBILE + MENU MOBILE
   ===================================================== */
@media (max-width: 991.98px) {
  /* Navbar sempre leggibile su mobile (logo navy su sfondo chiaro) */
  #mainNav {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px) saturate(160%);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    box-shadow: 0 2px 18px rgba(13, 59, 128, 0.1);
    padding: 8px 0;
  }

  #mainNav .navbar-brand img,
  #mainNav.scrolled .navbar-brand img {
    height: 48px;            /* compatto ma comunque più grande dell'originale */
    filter: none;
  }

  /* Hamburger scuro e ben visibile */
  #mainNav .navbar-toggler {
    color: var(--primary);
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
  }

  #mainNav .navbar-toggler:active {
    background: var(--primary-light);
  }

  #mainNav .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2813, 59, 128, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  }

  /* Pannello menu mobile */
  #mainNav .navbar-collapse {
    background: var(--white);
    border-radius: 18px;
    padding: 14px 16px 18px;
    margin-top: 12px;
    box-shadow: 0 18px 45px rgba(13, 59, 128, 0.18);
    border: 1px solid var(--gray-light);
  }

  #mainNav .nav-link {
    color: var(--dark);
    font-size: 1.05rem;
    padding: 13px 12px;
    margin: 0;
    border-radius: 12px;
    border-bottom: 1px solid var(--gray-light);
  }

  #mainNav .navbar-nav .nav-item:last-child .nav-link,
  #mainNav .nav-item:has(.nav-cta) .nav-link {
    border-bottom: none;
  }

  #mainNav .nav-link::after {
    display: none;           /* niente underline animata su mobile */
  }

  #mainNav .nav-link:hover,
  #mainNav .nav-link.active {
    background: var(--primary-light);
    color: var(--primary);
    padding-left: 16px;
  }

  /* CTA preventivo a tutta larghezza nel menu */
  #mainNav .nav-item:has(.nav-cta) {
    margin-top: 10px;
  }

  #mainNav .nav-cta {
    width: 100%;
    padding: 13px 22px;
    font-size: 1rem;
  }
}

/* Telefoni piccoli: respiro e tap target */
@media (max-width: 575.98px) {
  .section-padding {
    padding: 48px 0;
  }

  .hero-section {
    padding: 110px 0 80px;
  }

  .hero-buttons .btn {
    padding: 14px 24px;
  }

  /* Stat counter: 2 colonne più compatte */
  .stat-box {
    padding: 22px 14px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-icon {
    width: 58px;
    height: 58px;
    font-size: 1.6rem;
  }

  /* Card servizi e prodotti: padding ridotto */
  .service-card {
    padding: 30px 22px;
  }

  /* Modale a tutto schermo su telefoni */
  .preventivo-modal .modal-dialog {
    margin: 0;
    min-height: 100%;
    align-items: stretch;
  }

  .preventivo-modal .modal-content {
    border-radius: 0;
    min-height: 100vh;
  }

  .wizard-title {
    font-size: 1.25rem;
  }

  /* Pill e card opzioni: tap target comodi */
  .option-card {
    padding: 16px 12px;
  }

  .pill-option {
    padding: 11px 18px;
  }

  /* Scroll progress più sottile su mobile */
  .scroll-progress {
    height: 3px;
  }
}