/* =============================================
   OREFICERIE GASBARRI — Landing Page
   Stile: Caldo Artigianale
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* ---- Variables ---- */
:root {
  --color-bg:          #F7F1E8;
  --color-dark:        #2C1A0E;
  --color-copper:      #B87333;
  --color-terracotta:  #C4714F;
  --color-light:       #EDE5D4;
  --color-mid:         #D4C4A8;
  --color-text:        #3D2412;
  --color-text-light:  #7A5C3E;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --header-h: 76px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 4px;
  --max-w: 1160px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- Utility ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-copper);
  margin-bottom: 1rem;
}
.reveal {
  transition: opacity 0.7s ease, transform 0.7s ease;
}
/* Animazione attiva solo quando il body ha la classe js-reveal
   (aggiunta da JS solo se la pagina carica senza anchor) */
.js-reveal .reveal {
  opacity: 0;
  transform: translateY(28px);
}
.js-reveal .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; }

/* =============================================
   HEADER
   ============================================= */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}
#header.scrolled {
  background: rgba(247, 241, 232, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(44,26,14,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.header-logo img {
  height: 48px;
  width: auto;
  transition: filter var(--transition);
}
/* logo bianco quando header è trasparente (su hero) */
#header:not(.scrolled) .header-logo img {
  filter: brightness(0) invert(1);
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.header-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-dark);
  transition: color var(--transition);
}
#header:not(.scrolled) .header-nav a { color: rgba(255,255,255,0.9); }
.header-nav a:hover { color: var(--color-copper); }
#header:not(.scrolled) .header-nav a:hover { color: #fff; }
.btn-preventivo {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: 500;
  border: 1px solid var(--color-copper);
  color: var(--color-copper);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.btn-preventivo:hover {
  background: var(--color-copper);
  color: #fff;
}
#header:not(.scrolled) .btn-preventivo {
  border-color: rgba(255,255,255,0.7);
  color: rgba(255,255,255,0.9);
}
#header:not(.scrolled) .btn-preventivo:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  color: #fff;
}

/* Hamburger mobile */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 2px;
}
.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--color-dark);
  transition: var(--transition);
}
#header:not(.scrolled) .hamburger span { background: #fff; }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: var(--color-bg);
  padding: 2rem;
  flex-direction: column;
  gap: 1.5rem;
  border-top: 1px solid var(--color-mid);
  z-index: 99;
  box-shadow: 0 8px 24px rgba(44,26,14,0.12);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--color-dark);
}
.mobile-nav .btn-preventivo { align-self: flex-start; }

/* =============================================
   HERO
   ============================================= */
#hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}
.slider-track {
  position: absolute;
  inset: 0;
}
.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
  transform: scale(1.04);
  transition: opacity 1.2s ease, transform 6s ease;
}
.slide.active {
  opacity: 1;
  transform: scale(1);
}
.slide-1 {
  background-image: url('assets/hero-1.jpg');
}
.slide-2 {
  background-image: url('assets/hero-2.jpg');
}
.slide-3 {
  background-image: url('assets/hero-3.jpg');
}

/* Parallax layer (JS-driven) */
.slide-parallax {
  position: absolute;
  inset: -15%;
  background-size: cover;
  background-position: center;
  will-change: transform;
}

/* Overlay */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(44,26,14,0.35) 0%,
    rgba(44,26,14,0.55) 60%,
    rgba(44,26,14,0.7) 100%
  );
  z-index: 2;
}
.hero-content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
  padding-top: var(--header-h);
}
.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-copper);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.4s ease forwards;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 300;
  color: #fff;
  line-height: 1.12;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.65s ease forwards;
}
.hero-title em {
  font-style: italic;
  color: rgba(184,115,51,0.9);
}
.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 300;
  font-style: italic;
  color: rgba(255,255,255,0.8);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.85s ease forwards;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition);
  opacity: 0;
  animation: fadeUp 0.9s 1.05s ease forwards;
}
.hero-cta:hover {
  background: rgba(184,115,51,0.85);
  border-color: var(--color-copper);
}
.hero-cta svg { transition: transform var(--transition); }
.hero-cta:hover svg { transform: translateY(3px); }

/* Slider bullets */
.slider-bullets {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  gap: 0.6rem;
}
.bullet {
  width: 28px;
  height: 2px;
  background: rgba(255,255,255,0.35);
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}
.bullet.active { background: var(--color-copper); }

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

/* =============================================
   CHI SIAMO
   ============================================= */
#chi-siamo {
  padding: 7rem 0;
  background: var(--color-bg);
}
.chi-siamo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.chi-siamo-text h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 1.5rem;
}
.chi-siamo-text h2 em { font-style: italic; color: var(--color-copper); }
.chi-siamo-text p {
  color: var(--color-text-light);
  font-size: 1rem;
  margin-bottom: 1rem;
  max-width: 48ch;
}
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.pillar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
}
.pillar-icon {
  width: 36px;
  height: 36px;
  color: var(--color-copper);
}
.pillar-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-dark);
}
.pillar-text {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.5;
}
.chi-siamo-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
}
.chi-siamo-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}
.chi-siamo-image:hover img { transform: scale(1.04); }
.chi-siamo-image::before {
  content: '';
  position: absolute;
  top: -12px; left: -12px;
  right: 12px; bottom: 12px;
  border: 1px solid var(--color-copper);
  border-radius: var(--radius);
  z-index: -1;
  pointer-events: none;
}

/* =============================================
   SERVIZI
   ============================================= */
#servizi {
  padding: 6rem 0;
  background: var(--color-light);
}
#servizi .section-head {
  text-align: center;
  margin-bottom: 4rem;
}
#servizi h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 300;
  color: var(--color-dark);
  margin-top: 0.5rem;
}
.servizi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.servizio-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}
.servizio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(44,26,14,0.12);
}
.card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}
.servizio-card:hover .card-img img { transform: scale(1.05); }
.card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-copper);
  margin-bottom: 1rem;
}
.card-body h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}
.card-body p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.7;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-copper);
  font-weight: 500;
  transition: gap var(--transition);
}
.card-link:hover { gap: 0.7rem; }

/* =============================================
   FORM PREVENTIVO
   ============================================= */
#preventivo {
  padding: 7rem 0;
  background: var(--color-bg);
}
.preventivo-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}
.preventivo-intro h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 300;
  color: var(--color-dark);
  line-height: 1.2;
  margin-bottom: 1.2rem;
}
.preventivo-intro h2 em { font-style: italic; color: var(--color-copper); }
.preventivo-intro p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-light);
}
.contact-item svg {
  flex-shrink: 0;
  color: var(--color-copper);
  width: 18px;
  height: 18px;
}
.contact-item a { color: var(--color-text-light); transition: color var(--transition); }
.contact-item a:hover { color: var(--color-copper); }

/* Form */
#form-preventivo {
  background: var(--color-light);
  padding: 3rem;
  border-radius: var(--radius);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}
.form-group label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-light);
  font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-dark);
  background: var(--color-bg);
  border: 1px solid var(--color-mid);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-copper);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237A5C3E' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--color-copper);
  cursor: pointer;
}
.form-check label {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.5;
}
.form-check a { color: var(--color-copper); }
.btn-submit {
  width: 100%;
  padding: 1rem 2rem;
  background: var(--color-copper);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.btn-submit:hover { background: #a0622a; }
.btn-submit:active { transform: scale(0.98); }
.btn-submit.loading { opacity: 0.7; pointer-events: none; }

/* Form messages */
.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  display: none;
}
.form-message.success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #a5d6a7;
  display: block;
}
.form-message.error {
  background: #fce4ec;
  color: #c62828;
  border: 1px solid #ef9a9a;
  display: block;
}

/* Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}
.btn-submit.loading .spinner { display: block; }
.btn-submit.loading .btn-label { display: none; }

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

/* =============================================
   FOOTER
   ============================================= */
#footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.75);
  padding: 4rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .footer-logo {
  height: 44px;
  width: auto;
  margin-bottom: 1.2rem;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  max-width: 30ch;
  margin-bottom: 0.5rem;
}
.footer-piva {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  margin-top: 0.5rem;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.05em;
  margin-bottom: 1.2rem;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-col ul li a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-copper); }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 0.75rem;
}
.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-copper);
  width: 16px;
  height: 16px;
}
.footer-contact-item a {
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-contact-item a:hover { color: var(--color-copper); }
.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
}
.footer-bottom a {
  color: rgba(255,255,255,0.35);
  transition: color var(--transition);
}
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .chi-siamo-grid { grid-template-columns: 1fr; gap: 3rem; }
  .chi-siamo-image { aspect-ratio: 16/9; max-height: 400px; }
  .chi-siamo-image::before { display: none; }
  .preventivo-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .header-nav { display: none; }
  .hamburger { display: flex; }

  .servizi-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }

  #form-preventivo { padding: 2rem 1.5rem; }
  .hero-title { font-size: 2.4rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  #chi-siamo, #servizi, #preventivo { padding: 4.5rem 0; }
}