/* =====================================================================
   EdilTermica Srl — sito one-page
   3 temi commutabili: data-theme = "moderno" | "industriale" | "corporate"
   ===================================================================== */

/* ---------- TOKENS DI BASE (default = moderno) ---------- */
:root {
  --maxw: 1160px;
  --gutter: 24px;
  --radius: 16px;
  --radius-sm: 10px;
  --trans: .25s ease;

  --font-head: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --head-spacing: -0.02em;
  --head-transform: none;
  --head-weight: 800;

  --bg:        #ffffff;
  --bg-alt:    #f5f7fb;
  --surface:   #ffffff;
  --text:      #131a2a;
  --muted:     #5a667c;
  --border:    #e6eaf2;

  --primary:   #1f4f9c;
  --primary-d: #173c78;
  --on-primary:#ffffff;
  --accent:    #ee6a1b;

  --hero-bg-1: #eef3fb;
  --hero-bg-2: #ffffff;
  --hero-overlay: rgba(238,106,27,.08);

  --media-bg:  #e6ecf6;
  --media-fg:  #1f4f9c;

  --cta-bg:    #131a2a;
  --cta-text:  #ffffff;

  --shadow:    0 10px 30px rgba(20,30,60,.08);
  --shadow-sm: 0 4px 14px rgba(20,30,60,.07);
}

/* ---------- TEMA INDUSTRIALE ---------- */
[data-theme="industriale"] {
  --radius: 6px;
  --radius-sm: 4px;

  --font-head: 'Oswald', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --head-spacing: 0.01em;
  --head-transform: uppercase;
  --head-weight: 600;

  --bg:        #14110f;
  --bg-alt:    #1d1916;
  --surface:   #211c18;
  --text:      #f3ece4;
  --muted:     #b3a596;
  --border:    #352d27;

  --primary:   #ff6a1a;
  --primary-d: #e3550b;
  --on-primary:#1a1208;
  --accent:    #ffc043;

  --hero-bg-1: #1a1512;
  --hero-bg-2: #14110f;
  --hero-overlay: rgba(255,106,26,.10);

  --media-bg:  #2a2320;
  --media-fg:  #ff6a1a;

  --cta-bg:    #ff6a1a;
  --cta-text:  #1a1208;

  --shadow:    0 14px 34px rgba(0,0,0,.45);
  --shadow-sm: 0 6px 18px rgba(0,0,0,.4);
}

/* ---------- TEMA CORPORATE ---------- */
[data-theme="corporate"] {
  --radius: 8px;
  --radius-sm: 6px;

  --font-head: 'Lora', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --head-spacing: 0;
  --head-transform: none;
  --head-weight: 700;

  --bg:        #ffffff;
  --bg-alt:    #eef1f6;
  --surface:   #ffffff;
  --text:      #14253c;
  --muted:     #4a5b73;
  --border:    #d8dfea;

  --primary:   #0a4d8c;
  --primary-d: #073a6b;
  --on-primary:#ffffff;
  --accent:    #c8a24a;

  --hero-bg-1: #0a4d8c;
  --hero-bg-2: #0c3a69;
  --hero-overlay: rgba(255,255,255,.04);

  --media-bg:  #e3eaf4;
  --media-fg:  #0a4d8c;

  --cta-bg:    #14253c;
  --cta-text:  #ffffff;

  --shadow:    0 10px 26px rgba(10,40,80,.12);
  --shadow-sm: 0 4px 14px rgba(10,40,80,.1);
}
/* nel tema corporate l'hero ha sfondo scuro: testo chiaro */
[data-theme="corporate"] .hero { color: #fff; }
[data-theme="corporate"] .hero .eyebrow { color: var(--accent); }
[data-theme="corporate"] .hero-sub { color: rgba(255,255,255,.85); }
[data-theme="corporate"] .hero-badges li { color: rgba(255,255,255,.9); }
[data-theme="corporate"] .btn-ghost { color:#fff; border-color: rgba(255,255,255,.5); }
[data-theme="corporate"] .btn-ghost:hover { background: rgba(255,255,255,.12); }

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--trans), color var(--trans);
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: var(--head-weight);
  letter-spacing: var(--head-spacing);
  line-height: 1.12;
  margin: 0 0 .4em;
}
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.2rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

.eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .8rem;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 .6rem;
}

/* ---------- BOTTONI ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  font-family: var(--font-head);
  text-transform: var(--head-transform);
  font-weight: 600;
  letter-spacing: .01em;
  padding: .72rem 1.3rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--trans);
  white-space: nowrap;
}
.btn-sm { padding: .5rem .9rem; font-size: .85rem; }
.btn-lg { padding: .9rem 1.7rem; font-size: 1.02rem; }
.btn-block { width: 100%; }

.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-d); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

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

.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

.btn-light { background: var(--cta-text); color: var(--cta-bg); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ---------- HEADER ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 1.2rem; height: 70px; }

.brand { display: inline-flex; align-items: center; gap: .55rem; color: var(--text); }
.brand-logo { height: 50px; width: auto; display: block; }
.brand-mark {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--primary); color: var(--on-primary);
}
.brand-text { font-family: var(--font-head); font-size: 1.25rem; font-weight: 700; letter-spacing: .01em; }
.brand-text strong { color: var(--primary); }
.brand-text small { font-size: .62rem; vertical-align: super; margin-left: 2px; color: var(--muted); letter-spacing: .1em; }
.footer-logo { height: 56px; width: auto; display: block; margin-bottom: .8rem; background: #fff; padding: 6px 10px; border-radius: 10px; }

.main-nav { display: flex; gap: 1.4rem; margin-left: auto; }
.main-nav a { font-weight: 500; color: var(--muted); transition: color var(--trans); }
.main-nav a:hover { color: var(--primary); }

.header-actions { display: flex; align-items: center; gap: .8rem; margin-left: 1rem; }

.theme-switch {
  display: inline-flex;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
}
.theme-switch button {
  font-family: var(--font-head);
  font-size: .76rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .04em;
  border: 0; background: transparent; color: var(--muted);
  padding: .35rem .7rem; border-radius: 999px; cursor: pointer;
  transition: all var(--trans);
}
.theme-switch button.is-active { background: var(--primary); color: var(--on-primary); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--trans); }

/* ---------- HERO ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(3rem, 7vw, 5.5rem) 0; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(900px 500px at 85% -10%, var(--hero-overlay), transparent 60%),
    linear-gradient(160deg, var(--hero-bg-1), var(--hero-bg-2));
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.hero-title { font-size: clamp(2.1rem, 5.4vw, 3.6rem); margin-bottom: 1rem; }
.hero-sub { font-size: clamp(1.02rem, 2.1vw, 1.18rem); color: var(--muted); max-width: 600px; }
.hero-sub strong { color: var(--text); }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.8rem 0 1.4rem; }
.hero-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 1.2rem; padding: 0; margin: 0; }
.hero-badges li { font-weight: 500; color: var(--muted); display: inline-flex; align-items: center; gap: .4rem; }
.hero-badges span { color: var(--accent); font-weight: 800; }
.hero-media { position: relative; }
.hero-media img {
  width: 100%; aspect-ratio: 16/10; object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

/* ---------- STATS ---------- */
.stats { background: var(--primary); color: var(--on-primary); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding: 2.2rem var(--gutter); }
.stat { text-align: center; }
.stat strong { display: block; font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1; }
.stat span { font-size: .9rem; opacity: .9; }

/* ---------- SECTIONS ---------- */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 640px; margin: 0 auto 2.6rem; text-align: center; }
.section-lead { color: var(--muted); font-size: 1.08rem; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: center; }
.col-text p { color: var(--muted); }
.col-text h2 { color: var(--text); }

.media-frame { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); }
.media-frame svg, .media-frame img { width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; display: block; }

/* ---------- REPARTI (card con foto) ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.cat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }
.cat-card figure { margin: 0; overflow: hidden; }
.cat-card figure img {
  width: 100%; aspect-ratio: var(--cat-img-aspect, 16/10); object-fit: cover; display: block;
  transform: scale(var(--img-zoom, 1)); transform-origin: var(--img-origin, 50% 50%);
  transition: transform .4s ease;
}
.cat-card:hover figure img { transform: scale(calc(var(--img-zoom, 1) * 1.06)); }
.cat-body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .35rem; flex: 1; }
.cat-body h3 { color: var(--text); font-size: 1.08rem; margin: 0; }
.cat-body p { color: var(--muted); margin: 0; font-size: .92rem; }
.cat-body .btn { margin-top: auto; align-self: flex-start; }
/* card finale "E molto altro" senza foto */
.cat-card--cta { background: color-mix(in srgb, var(--primary) 8%, var(--surface)); border-style: dashed; justify-content: center; }
.cat-card--cta .cat-body { padding: 1.6rem 1.2rem; }

/* ---------- GALLERIA PUNTO VENDITA (layout a colonne) ---------- */
.gallery-grid { columns: 3; column-gap: .9rem; }
.gallery-grid figure {
  break-inside: avoid; margin: 0 0 .9rem; overflow: hidden;
  border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm);
}
.gallery-grid img {
  width: 100%; display: block; object-fit: cover;
  transform: scale(var(--img-zoom, 1)); transform-origin: var(--img-origin, 50% 50%);
  transition: transform .5s ease;
}
.gallery-grid figure:hover img { transform: scale(calc(var(--img-zoom, 1) * 1.05)); }
/* forma per foto */
.gallery-grid .g-orizz img    { aspect-ratio: 16/10; }
.gallery-grid .g-quadrata img { aspect-ratio: 1/1; }
.gallery-grid .g-vert img     { aspect-ratio: 3/4; }
/* compat layout vecchio (fallback) */
.gallery-grid .g-big img, .gallery-grid .g-cell img, .gallery-grid .g-wide img { aspect-ratio: 16/10; }

/* ---------- DETTAGLIO & INGROSSO ---------- */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.duo-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.8rem;
  box-shadow: var(--shadow-sm);
}
.duo-icon {
  display: grid; place-items: center; width: 54px; height: 54px;
  border-radius: 14px; margin-bottom: 1rem;
  background: var(--primary); color: var(--on-primary);
}
.duo-icon svg { width: 28px; height: 28px; }
.duo-card h3 { color: var(--text); }
.duo-card p { color: var(--muted); margin: 0; }
.duo-card strong { color: var(--text); }

/* ---------- FEATURES ---------- */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.feature { padding-top: 1rem; border-top: 3px solid var(--primary); }
.feature-num { font-family: var(--font-head); font-size: 1.6rem; font-weight: 700; color: var(--primary); }
.feature h3 { color: var(--text); margin: .4rem 0 .3rem; }
.feature p { color: var(--muted); margin: 0; font-size: .95rem; }

/* ---------- CTA BAND ---------- */
.cta-band { background: var(--cta-bg); color: var(--cta-text); }
.cta-inner { text-align: center; padding: clamp(2.6rem, 6vw, 4.4rem) var(--gutter); }
.cta-inner h2 { color: var(--cta-text); }
.cta-inner p { color: color-mix(in srgb, var(--cta-text) 80%, transparent); margin-bottom: 1.6rem; }

/* ---------- CONTATTI ---------- */
.contact-col { align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 1.6rem 0 0; display: grid; gap: 1.1rem; }
.contact-list li { display: flex; gap: .9rem; align-items: flex-start; }
.ci { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border-radius: 10px; background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); }
.ci svg { width: 20px; height: 20px; }
.contact-list strong { display: block; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.contact-list a, .contact-list div > span { color: var(--text); font-weight: 500; }
.contact-list a:hover { color: var(--primary); }
.orari-nota {
  display: flex; align-items: flex-start; gap: .55rem;
  margin: 1.2rem 0 0; padding: .8rem 1rem;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: .92rem; color: var(--text);
}
.orari-nota svg { color: var(--accent); flex: none; margin-top: 2px; }
.orari-nota strong { color: var(--text); }

.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 1rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .35rem; color: var(--text); }
.field input, .field textarea {
  width: 100%; padding: .7rem .85rem;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--text);
  font-family: inherit; font-size: .96rem;
  transition: border-color var(--trans);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--primary); }
.form-note { font-size: .8rem; color: var(--muted); text-align: center; margin: .8rem 0 0; }
.contact-card { text-align: center; }
.contact-card h3 { color: var(--text); margin-bottom: .4rem; }
.contact-card > p { color: var(--muted); margin: 0 0 1.3rem; }
.contact-card .btn + .btn { margin-top: .7rem; }

/* notifica "copiato" */
.et-toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px);
  background: var(--text); color: var(--bg);
  padding: .8rem 1.2rem; border-radius: 999px;
  font-size: .92rem; font-weight: 500; box-shadow: var(--shadow);
  opacity: 0; pointer-events: none; z-index: 10001;
  transition: opacity .25s ease, transform .25s ease;
}
.et-toast.show { opacity: 1; transform: translate(-50%, 0); }

/* schermata "sito in aggiornamento" */
.maint-overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(900px 500px at 80% -10%, var(--hero-overlay), transparent 60%),
    linear-gradient(160deg, var(--hero-bg-1), var(--hero-bg-2));
  overflow: auto;
}
.maint-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 560px; width: 100%;
  padding: 2.6rem 2rem; text-align: center;
}
.maint-logo { height: 84px; width: auto; margin: 0 auto 1.4rem; }
.maint-badge {
  display: inline-block;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent); font-weight: 700;
  font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
  padding: .4rem .9rem; border-radius: 999px; margin-bottom: 1rem;
}
.maint-msg { color: var(--muted); font-size: 1.08rem; margin: 0 0 1.6rem; }
.maint-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: .7rem; margin-bottom: 1.4rem; }
.maint-info { list-style: none; padding: 0; margin: 0 0 1.2rem; color: var(--text); }
.maint-info li { margin: .25rem 0; }
.maint-legal { font-size: .82rem; color: var(--muted); margin: 0; }

/* ---------- FOOTER ---------- */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--border); }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding: 3rem var(--gutter) 2rem; }
.footer-brand p { color: var(--muted); max-width: 320px; margin-top: .6rem; }
.footer-col h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.footer-col a, .footer-col span { display: block; color: var(--text); margin-bottom: .4rem; font-size: .95rem; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1.1rem; padding-bottom: 1.1rem; font-size: .85rem; color: var(--muted); flex-wrap: wrap; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1000px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .main-nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .main-nav.open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 70px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: .5rem var(--gutter) 1rem;
  }
  .main-nav.open a { padding: .8rem 0; border-bottom: 1px solid var(--border); }
  .header-actions { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; max-width: 520px; }
  .two-col { grid-template-columns: 1fr; }
  .col-media { order: -1; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
  .duo { grid-template-columns: 1fr; }
  .gallery-grid { columns: 2; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.6rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .cat-grid, .features { grid-template-columns: 1fr; }
  .gallery-grid { columns: 1; }
  .field-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-cta .btn { flex: 1 1 auto; }
}

/* riduce le animazioni se l'utente lo preferisce */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}