/* ============================================================
   Caseificio F.lli Di Sarra — Fondi (LT)
   Concept: "Album di famiglia" — heritage caldo, vintage/scrapbook
   Palette: verde foresta / crema / senape / seppia
   ============================================================ */

:root {
  --verde:      #24452F;
  --verde-deep: #172E1F;
  --verde-soft: #3A5C44;
  --crema:      #EFE7D6;
  --crema-2:    #E5DAC3;
  --paper:      #F6F0E2;
  --senape:     #C99A3A;
  --senape-deep:#A87C27;
  --senape-soft:#E7D3A6;
  --seppia:     #6B5842;
  --ink:        #2A231B;
  --ink-60:     #7A6A57;

  --font-display: "DM Serif Display", Georgia, "Times New Roman", serif;
  --font-sans: "Nunito Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-hand: "Caveat", "Segoe Script", cursive;

  --radius:    14px;
  --radius-lg: 22px;
  --shadow:    0 26px 60px -30px rgba(23, 46, 31, 0.55);
  --shadow-sm: 0 14px 32px -20px rgba(23, 46, 31, 0.45);
  --shadow-photo: 0 18px 40px -22px rgba(23, 46, 31, 0.55), 0 3px 8px -4px rgba(23,46,31,0.3);

  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--crema);
  background-image:
    radial-gradient(circle at 18% 12%, rgba(201,154,58,0.06) 0, transparent 42%),
    radial-gradient(circle at 82% 78%, rgba(36,69,47,0.05) 0, transparent 45%);
  line-height: 1.65;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: 0;
}
h1 em, h2 em { font-style: italic; color: var(--senape-deep); }

.handwrite {
  font-family: var(--font-hand);
  font-weight: 600;
  color: var(--senape-deep);
  font-size: clamp(1.35rem, 1.1rem + 1.1vw, 1.9rem);
  line-height: 1;
  display: inline-block;
  transform: rotate(-3deg);
}

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link {
  position: absolute; left: 1rem; top: -60px;
  background: var(--verde); color: var(--crema);
  padding: 0.6rem 1rem; border-radius: 10px; z-index: 200;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--senape-deep);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.7rem;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.97rem;
  border: 1.5px solid transparent;
  transition: transform 0.35s var(--ease), background 0.3s var(--ease),
              color 0.3s var(--ease), box-shadow 0.35s var(--ease);
  will-change: transform;
}
.btn-primary { background: var(--verde); color: var(--crema); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--senape-deep); color: #fff; transform: translateY(-3px); box-shadow: var(--shadow); }
.btn-ghost { background: rgba(239,231,214,0.12); color: var(--crema); border-color: rgba(239,231,214,0.65); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: var(--crema); color: var(--verde); transform: translateY(-3px); }
.btn-outline { background: transparent; color: var(--senape-deep); border-color: var(--senape-deep); }
.btn-outline:hover { background: var(--senape-deep); color: #fff; transform: translateY(-3px); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(239, 231, 214, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.scrolled { border-color: rgba(23,46,31,0.12); box-shadow: 0 6px 24px -20px rgba(23,46,31,0.55); }

.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--verde); }
.brand-mark { width: 32px; height: 32px; }
.brand-word {
  font-family: var(--font-display); font-weight: 400; font-size: 1.5rem;
  letter-spacing: 0; color: var(--verde); line-height: 1;
}
.brand-flli { color: var(--senape-deep); font-style: italic; }

.main-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: 0.4rem; list-style: none; }
.nav-list a {
  display: inline-block; padding: 0.5rem 0.95rem; font-weight: 600;
  font-size: 0.96rem; border-radius: 100px; position: relative;
  transition: color 0.25s var(--ease);
}
.nav-list a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0.95rem; right: 0.95rem; bottom: 0.35rem;
  height: 2px; background: var(--senape); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease);
}
.nav-list a:not(.nav-cta):hover::after { transform: scaleX(1); }
.nav-cta { background: var(--verde); color: var(--crema); }
.nav-cta:hover { background: var(--senape-deep); color: #fff; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 44px; height: 44px; padding: 10px; background: transparent; border: 0;
}
.nav-toggle span { height: 2px; width: 100%; background: var(--verde); border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.2s var(--ease); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero-media { position: absolute; inset: -8% 0; z-index: 0; will-change: transform; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(20,34,22,0.45) 0%, rgba(20,34,22,0.15) 32%, rgba(20,34,22,0.68) 100%),
    linear-gradient(90deg, rgba(20,34,22,0.58) 0%, rgba(20,34,22,0.0) 62%);
}
.hero-content {
  position: relative; z-index: 2;
  min-height: min(90vh, 800px);
  display: flex; flex-direction: column; justify-content: center;
  padding-top: 4rem; padding-bottom: 6rem;
  max-width: 800px;
}
.hero-note { color: var(--senape-soft); margin-bottom: 0.4rem; transform: rotate(-4deg); }
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.22em; font-size: 0.75rem;
  font-weight: 700; color: rgba(239,231,214,0.92); margin-bottom: 1.1rem;
}
.eyebrow-dark { color: var(--senape-deep); }
.eyebrow-light { color: var(--senape); }
.hero h1 {
  color: var(--crema);
  font-size: clamp(2.7rem, 1.6rem + 5.4vw, 5.4rem);
  margin-bottom: 1.4rem;
}
.hero h1 em { color: var(--senape-soft); }
.hero-sub {
  color: rgba(239,231,214,0.94); font-size: clamp(1.05rem, 1rem + 0.4vw, 1.28rem);
  max-width: 580px; margin-bottom: 2.2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* running strip */
.hero-strip {
  position: relative; z-index: 2;
  background: var(--verde); color: var(--senape-soft);
  display: flex; align-items: center; gap: 1.4rem;
  padding: 0.85rem 0; white-space: nowrap; overflow: hidden;
  font-family: var(--font-display); font-style: italic; font-size: 1.14rem;
  border-block: 1px solid rgba(201,154,58,0.25);
}
.hero-strip > span { animation: marquee 32s linear infinite; padding-left: 1.4rem; }
.hero-strip .dot { color: var(--senape); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding: clamp(4rem, 3rem + 6vw, 7.5rem) 0; }
.section-head { max-width: 640px; margin-bottom: clamp(2.4rem, 5vw, 3.6rem); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head .handwrite { margin-bottom: 0.2rem; }
.section-head h2, .split-text h2, .contatti-info h2 {
  font-size: clamp(2.2rem, 1.5rem + 3vw, 3.6rem);
  margin: 0.3rem 0 0.9rem;
}
.section-lead { color: var(--ink-60); font-size: 1.08rem; max-width: 52ch; }
.section-head.center .section-lead { margin-inline: auto; }

/* ---------- Polaroid (scrapbook photo) ---------- */
.polaroid {
  background: var(--paper);
  padding: 0.7rem 0.7rem 0.4rem;
  border-radius: 4px;
  box-shadow: var(--shadow-photo);
  border: 1px solid rgba(23,46,31,0.05);
  position: relative;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.polaroid::before { /* nastro adesivo */
  content: ""; position: absolute; top: -12px; left: 50%;
  width: 96px; height: 26px; transform: translateX(-50%) rotate(-3deg);
  background: rgba(201,154,58,0.4);
  border: 1px solid rgba(201,154,58,0.25);
  box-shadow: 0 2px 6px -3px rgba(23,46,31,0.4);
}
.polaroid-media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: 2px; background: var(--crema-2); }
.polaroid-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.polaroid-body { padding: 0.9rem 0.6rem 0.7rem; text-align: center; }
.polaroid-cap { display: block; margin-bottom: 0.15rem; transform: rotate(-2deg); }
.polaroid-body h3 { font-size: 1.55rem; margin-bottom: 0.4rem; color: var(--verde); }
.polaroid-body p { color: var(--ink-60); font-size: 0.98rem; text-align: left; }
.polaroid:hover { transform: rotate(-1.2deg) translateY(-8px); box-shadow: var(--shadow); }
.polaroid:hover .polaroid-media img { transform: scale(1.05); }

/* Products grid — polaroid sfalsate come in un album */
.products { position: relative; }
.product-grid {
  display: grid; gap: clamp(1.6rem, 3vw, 2.4rem);
  grid-template-columns: 1fr;
}
.product-grid .polaroid { will-change: transform; }
.product-grid .polaroid:nth-child(1) { rotate: -2.2deg; }
.product-grid .polaroid:nth-child(2) { rotate: 1.6deg; }
.product-grid .polaroid:nth-child(3) { rotate: -1.4deg; }
.product-grid .polaroid:hover { rotate: 0deg; }

/* ---------- Galleria orizzontale ---------- */
.hgallery { background: var(--verde); color: var(--crema); position: relative; }
.hgallery::before, .hgallery::after {
  content: ""; position: absolute; inset-inline: 0; height: 60px; z-index: 3; pointer-events: none;
}
.hgallery-pin { position: relative; }
.hgallery-sticky {
  position: sticky; top: 0; height: 100vh;
  display: flex; align-items: center; overflow: hidden;
}
.hgallery-track {
  display: flex; align-items: center; gap: clamp(1.6rem, 4vw, 3.2rem);
  padding-inline: clamp(1.5rem, 6vw, 6rem);
  will-change: transform;
}
.hgallery-intro { flex: none; width: min(78vw, 360px); }
.hgallery-intro .handwrite { color: var(--senape); }
.hgallery-intro h2 { font-size: clamp(2.4rem, 1.6rem + 3.6vw, 4rem); margin: 0.3rem 0 1rem; color: var(--crema); }
.hgallery-hint { font-family: var(--font-hand); font-size: 1.5rem; color: var(--senape); }
.hgallery .polaroid-dark {
  flex: none; width: min(72vw, 380px);
  background: var(--paper);
  color: var(--ink);
}
.hgallery .polaroid-dark:nth-child(2) { rotate: -2deg; }
.hgallery .polaroid-dark:nth-child(3) { rotate: 1.8deg; }
.hgallery .polaroid-dark:nth-child(4) { rotate: -1.6deg; }
.hgallery .polaroid-dark:nth-child(5) { rotate: 2deg; }
.hgallery .polaroid-dark .polaroid-cap { color: var(--senape-deep); font-size: 1.7rem; padding: 0.6rem 0 0.4rem; text-align: center; }
.hgallery .polaroid-dark:hover { rotate: 0deg; transform: translateY(-8px); }

/* ---------- Split layout (tradizione / contatti) ---------- */
.split { display: grid; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; grid-template-columns: 1fr; }

/* cornice foto con zoom parallax */
.split-media { position: relative; }
.zoom-frame {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow);
  border: 8px solid var(--paper);
  outline: 1px solid rgba(23,46,31,0.08);
  rotate: -1.4deg;
}
.zoom-frame img { width: 100%; aspect-ratio: 3 / 2.2; object-fit: cover; will-change: transform; }

/* stamp accent over image */
.media-stamp {
  position: absolute; bottom: -0.6rem; right: -0.6rem; z-index: 2;
  width: 96px; height: 96px; border-radius: 50%;
  display: grid; place-items: center; text-align: center;
  font-family: var(--font-display); font-style: italic;
  font-size: 0.95rem; line-height: 1.1; color: var(--crema);
  background: var(--senape-deep);
  border: 2px dashed rgba(239,231,214,0.7);
  box-shadow: 0 10px 24px -12px rgba(23,46,31,0.7);
  transform: rotate(-8deg);
}

.split-text .handwrite { margin-bottom: 0.2rem; }
.split-text p { color: var(--ink-60); margin-bottom: 1.6rem; }

.steps { list-style: none; display: grid; gap: 1.1rem; }
.steps li { display: flex; gap: 1rem; align-items: flex-start; }
.step-n {
  flex: none; font-family: var(--font-display); font-style: italic;
  font-size: 1.15rem; color: var(--verde);
  width: 2.6rem; height: 2.6rem; border-radius: 50%;
  display: grid; place-items: center; background: var(--senape-soft);
}
.steps div { display: flex; flex-direction: column; color: var(--ink-60); }
.steps strong { color: var(--ink); font-weight: 700; }

/* ---------- Azienda (fondo scuro-verde) ---------- */
.azienda { background: var(--verde); color: var(--crema); position: relative; }
.azienda .section-lead { color: rgba(239,231,214,0.82); }
.azienda h2 { color: var(--crema); }
.azienda h2 em { color: var(--senape); }
.values {
  display: grid; gap: 1.6rem; grid-template-columns: 1fr;
  margin-top: 1rem; position: relative;
}
/* filo dell'album che unisce le tessere */
.values::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: repeating-linear-gradient(180deg, var(--senape) 0 8px, transparent 8px 16px);
  opacity: 0.5; transform: translateX(-50%);
}
.value {
  background: var(--paper); color: var(--ink);
  border-radius: 4px;
  padding: 1.7rem 1.7rem 1.9rem;
  box-shadow: var(--shadow-photo);
  position: relative; z-index: 1;
  transition: transform 0.4s var(--ease);
}
.value:nth-child(odd) { rotate: -1.4deg; }
.value:nth-child(even) { rotate: 1.4deg; }
.value-dot {
  position: absolute; top: -9px; left: 50%; transform: translateX(-50%);
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--senape); border: 3px solid var(--verde);
}
.value:hover { rotate: 0deg; transform: translateY(-6px); }
.value h3 { font-size: 1.5rem; margin-bottom: 0.5rem; color: var(--verde); }
.value p { color: var(--ink-60); }

/* ---------- Contatti ---------- */
.contatti { background: linear-gradient(180deg, var(--paper) 0%, var(--crema) 100%); }
.contatti-split { align-items: stretch; }
.contatti-info .handwrite { margin-bottom: 0.2rem; }
.contact-list { list-style: none; display: grid; gap: 1.3rem; margin: 2rem 0; }
.contact-list li { display: grid; gap: 0.2rem; }
.c-label { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.72rem; font-weight: 700; color: var(--senape-deep); }
.contact-list a { font-size: 1.1rem; transition: color 0.25s var(--ease); }
.contact-list a:hover { color: var(--verde); }

.contatti-form {
  background: var(--paper); border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.6rem); box-shadow: var(--shadow-sm);
  border: 1px solid rgba(23,46,31,0.06);
  rotate: 0.6deg;
}
.field { margin-bottom: 1.15rem; display: grid; gap: 0.4rem; }
.field label { font-weight: 700; font-size: 0.9rem; }
.field input, .field textarea {
  font-family: inherit; font-size: 1rem; color: var(--ink);
  padding: 0.85rem 1rem; border: 1.5px solid rgba(23,46,31,0.18);
  border-radius: 12px; background: var(--crema); resize: vertical;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.field input:focus, .field textarea:focus { border-color: var(--senape-deep); background: #fff; outline: none; }
.field input.invalid, .field textarea.invalid { border-color: #a23a2a; }
.form-note { min-height: 0; font-size: 0.95rem; }
.form-note.ok { color: var(--verde); font-weight: 700; }
.form-note.err { color: #a23a2a; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Footer ---------- */
.site-footer { background: var(--verde-deep); color: rgba(239,231,214,0.85); padding-top: clamp(3rem, 5vw, 4.5rem); }
.footer-inner { display: grid; gap: 2.2rem; grid-template-columns: 1fr; padding-bottom: 2.5rem; }
.brand-footer { color: var(--senape); }
.brand-footer .brand-word { color: var(--crema); }
.brand-footer .brand-flli { color: var(--senape); }
.footer-brand p { margin-top: 0.9rem; max-width: 32ch; color: rgba(239,231,214,0.6); }
.footer-col h4 { font-family: var(--font-display); font-weight: 400; font-size: 1.25rem; color: var(--crema); margin-bottom: 0.7rem; }
.footer-col p { color: rgba(239,231,214,0.72); line-height: 1.9; }
.footer-col a:hover { color: var(--senape); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: space-between;
  border-top: 1px solid rgba(239,231,214,0.14);
  padding-block: 1.5rem 2rem; font-size: 0.85rem; color: rgba(239,231,214,0.55);
}
.footer-bottom .credit { font-family: var(--font-hand); font-size: 1.15rem; color: var(--senape); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (min-width: 620px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: repeat(2, 1fr); }
  .values::before { display: none; }
  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 900px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .product-grid .polaroid:nth-child(2) { margin-top: 2.6rem; }
  .product-grid .polaroid:nth-child(3) { margin-top: 1rem; }
  .split { grid-template-columns: 1fr 1fr; }
  .tradizione .split { grid-template-columns: 1.05fr 0.95fr; }
  .contatti-split { grid-template-columns: 0.95fr 1.05fr; }
  .values { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Galleria orizzontale: fallback mobile / no-pin ---------- */
@media (max-width: 899px) {
  .hgallery-pin { height: auto !important; }
  .hgallery-sticky {
    position: static; height: auto; overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-block: clamp(3rem, 8vw, 4.5rem);
    -webkit-overflow-scrolling: touch;
  }
  .hgallery-track { transform: none !important; }
  .hgallery-intro { width: min(80vw, 320px); }
  .snap { scroll-snap-align: center; }
  .hgallery .polaroid-dark { width: min(80vw, 320px); }
}
.hgallery-pin.is-static { height: auto !important; }
.hgallery-pin.is-static .hgallery-sticky {
  position: static; height: auto; overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-block: clamp(3rem, 8vw, 4.5rem);
}
.hgallery-pin.is-static .hgallery-track { transform: none !important; }

/* ---------- Mobile nav ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-list {
    position: fixed; inset: 74px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--crema); padding: 0.5rem var(--gutter) 1.6rem;
    border-bottom: 1px solid rgba(23,46,31,0.1);
    box-shadow: var(--shadow);
    transform: translateY(-140%); transition: transform 0.4s var(--ease);
    max-height: calc(100dvh - 74px); overflow-y: auto;
  }
  .nav-list.open { transform: translateY(0); }
  .nav-list li { border-bottom: 1px solid rgba(23,46,31,0.08); }
  .nav-list a { display: block; padding: 1rem 0.2rem; font-size: 1.1rem; border-radius: 0; }
  .nav-list a::after { display: none; }
  .nav-cta { background: transparent; color: var(--senape-deep); }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-media, .zoom-frame img, .product-grid .polaroid { transform: none !important; }
}