/* ========================================
   SCIAMMACCA INFISSI - STILE PRINCIPALE
   Design elegante bianco/nero con responsive
   ======================================== */

:root {
  color-scheme: light;
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  color: #111;
  background: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #ffffff;
  color: #111111;
  line-height: 1.6;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

/* ========================================
   NAVBAR / NAVIGAZIONE
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  box-shadow: none;
  transition: padding 0.4s cubic-bezier(0.16, 1, 0.3, 1), background 0.4s ease, box-shadow 0.4s ease;
}

.navbar.scrolled {
  padding: 0.8rem 2rem;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  height: 50px;
  width: auto;
  transition: height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.navbar.scrolled .logo {
  height: 42px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.06em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: #111;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: #111;
  transform-origin: bottom right;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Toggle menu per mobile (nascosto di default) */
.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  font-size: 1.5rem;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 7rem 2rem 3rem;
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('home-slide-1b.webp') no-repeat center center/cover;
  color: #ffffff;
  text-align: center;
}

.hero-content {
  max-width: 700px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: #f0f0f0;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.85rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.75rem, 6vw, 5rem);
  line-height: 0.95;
}

.hero p {
  margin: 1.5rem auto 2rem;
  max-width: 620px;
  color: #d9d9d9;
}

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

/* ========================================
   BOTTONI
   ======================================== */

.btn {
  border: 1px solid transparent;
  padding: 0.95rem 1.7rem;
  border-radius: 999px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease, border-color 0.3s ease;
  font-weight: 600;
  display: inline-block;
}

.btn:active {
  transform: scale(0.96) translateY(-1px);
}

.btn-primary {
  background: #ffffff;
  color: #111111;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(255, 255, 255, 0.18);
}

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.75);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
  border-color: #ffffff;
}

/* ========================================
   ANIMAZIONI HERO
   ======================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-content .eyebrow {
  animation-delay: 0.1s;
}

.hero-content h1 {
  animation-delay: 0.25s;
}

.hero-content p {
  animation-delay: 0.4s;
}

.hero-content .hero-actions {
  animation-delay: 0.55s;
}

/* ========================================
   SEZIONI GENERICHE
   ======================================== */

.section {
  padding: 6rem 2rem;
}

.section-header {
  max-width: 760px;
  margin: 0 auto 2rem;
  text-align: center;
}

.section-label {
  margin-bottom: 0.75rem;
  display: inline-block;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #555555;
  font-size: 0.85rem;
}

.section h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.75rem);
}

.section-subheading {
  margin: 2rem auto 1rem;
  font-size: 1.4rem;
  font-weight: 600;
  text-align: center;
}

.section-text {
  margin: 1.5rem auto 0;
  max-width: 720px;
  color: #444444;
}

.section-intro {
  max-width: 720px;
  margin: 0 auto 2rem;
  text-align: center;
  color: #555555;
  font-size: 1rem;
}

/* ========================================
   GRIGLIE LAYOUT
   ======================================== */

.services-grid,
.reviews-grid,
.gallery-grid,
.contact-grid {
  display: grid;
  gap: 1.5rem;
}

.services-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.reviews-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.gallery-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-grid {
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 2rem;
}

/* ========================================
   CARD PRODOTTI/SERVIZI
   ======================================== */

.service-card,
.review-card,
.contact-card,
.contact-form-card {
  background: #ffffff;
  border: 1px solid #ececec;
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.04);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease;
}

.service-card:hover,
.contact-card:hover,
.contact-form-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.08);
  border-color: rgba(17, 17, 17, 0.1);
}

.service-card img {
  border-radius: 18px;
  margin-bottom: 1rem;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card:hover img {
  transform: scale(1.02);
}

.service-card h3,
.review-card h3,
.contact-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.service-card p,
.review-card p,
.contact-card p {
  margin: 0;
  color: #555555;
}

/* ========================================
   CARD GALLERIA
   ======================================== */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  cursor: pointer;
  background: #f4f4f4;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  display: block;
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(2px);
}

.overlay-icon {
  color: #ffffff;
  font-size: 2.2rem;
  font-weight: 300;
  width: 55px;
  height: 55px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scale(0.8);
}

/* Effetti hover */
.gallery-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

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

.gallery-item:hover .overlay-icon {
  transform: scale(1);
}

/* ========================================
   CARD RECENSIONI
   ======================================== */

.review-card {
  padding: 2rem;
}

.review-card p {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: #222222;
}

.review-card span {
  display: block;
  color: #888888;
  font-size: 0.95rem;
}

/* ========================================
   SEZIONE CONTATTI
   ======================================== */

.contact-info {
  display: grid;
  gap: 1rem;
}

.contact-form-card {
  min-height: 100%;
}

/* FORM STYLING */
.contact-form-card form {
  display: grid;
  gap: 1rem;
}

.contact-form-card label {
  font-weight: 600;
}

.contact-form-card input,
.contact-form-card textarea {
  border: 1px solid #d7d7d7;
  border-radius: 16px;
  padding: 0.95rem 1rem;
  width: 100%;
  background: #f9f9f9;
  transition: border-color 0.3s ease;
}

.contact-form-card input:focus,
.contact-form-card textarea:focus {
  outline: none;
  border-color: #111111;
  background: #ffffff;
}

.contact-form-card button {
  width: fit-content;
}

.form-status {
  margin: 0;
  font-size: 0.95rem;
  color: #444444;
}

/* ========================================
   MAPPA EMBED
   ======================================== */

.map-embed {
  margin-top: 2rem;
  border-radius: 24px;
  overflow: hidden;
  min-height: 320px;
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  min-height: 320px;
  border: none;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background: #111111;
  color: #f4f4f4;
  padding: 2rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  color: #f4f4f4;
  transition: opacity 0.3s ease;
}

.social-links a:hover {
  opacity: 0.6;
}

/* ========================================
   ANIMAZIONI
   ======================================== */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Classe aggiunta via JavaScript quando la sezione entra in viewport */
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   MEDIA QUERIES - RESPONSIVE MOBILE
   ======================================== */

@media (max-width: 900px) {
  .hero {
    padding-top: 6rem;
  }

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

@media (max-width: 700px) {
  /* NAVBAR MOBILE */
  .navbar {
    padding: 0.7rem 1rem;
  }

  .navbar-left {
    gap: 0.7rem;
  }

  .logo {
    height: 40px;
  }

  .brand {
    font-size: 0.85rem;
  }

  /* Menu mobile hidden di default, si apre al click */
  .nav-links {
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 18px;
    padding: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 0.5rem;
  }

  /* Classe open aggiunta via JavaScript */
  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
  }

  .nav-links a {
    padding: 0.8rem 0;
  }

  /* HERO */
  .hero {
    padding-top: 5rem;
  }

  /* GRIGLIE RESPONSIVE */
  .services-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }

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

  /* FOOTER */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* ========================================
   LIGHTBOX MODAL & CARICAMENTO GALLERIA
   ======================================== */
.lightbox {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  user-select: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.show {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  max-width: 85%;
  max-height: 85%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  object-fit: contain;
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox.show img {
  transform: scale(1);
}

.close-lightbox {
  position: absolute;
  top: 2rem;
  right: 2rem;
  color: #fff;
  font-size: 2.5rem;
  font-weight: 300;
  cursor: pointer;
  transition: opacity 0.2s;
  z-index: 1010;
}

.close-lightbox:hover {
  opacity: 0.7;
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: white;
  font-size: 2rem;
  padding: 1rem 1.5rem;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.2s, transform 0.2s;
  z-index: 1010;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
}

.lightbox-prev {
  left: 2rem;
}

.lightbox-next {
  right: 2rem;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.05);
}

.lightbox-prev:active,
.lightbox-next:active {
  transform: translateY(-50%) scale(0.95);
}

.load-more-container {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}

.load-more-container .btn-secondary {
  color: #111111;
  border-color: #111111;
  background: transparent;
}

.load-more-container .btn-secondary:hover {
  background: #111111;
  color: #ffffff;
}

@media (max-width: 768px) {
  .lightbox-prev,
  .lightbox-next {
    width: 45px;
    height: 45px;
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
  }
  .lightbox-prev {
    left: 1rem;
  }
  .lightbox-next {
    right: 1rem;
  }
  .close-lightbox {
    top: 1rem;
    right: 1rem;
  }
}

.lightbox-caption {
  position: absolute;
  bottom: 2rem;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  font-weight: 500;
  z-index: 1010;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}