/* ============================================
   EtnaBrain — palette ufficiale (VINCOLANTE)
   ============================================ */
:root {
  --obsidian: #1E1E24;
  --lava: #E8552D;
  --lava-chiara: #FF6A3D;
  --ambra: #FFB05C;
  --ambra-2: #FFC46B;
  --crema: #F3F1EC;
  --nero-fume: #141319;

  --text: var(--crema);
  --text-dim: rgba(243, 241, 236, 0.72);
  --text-faint: rgba(243, 241, 236, 0.48);
  --surface: var(--obsidian);
  --border: rgba(243, 241, 236, 0.10);
  --accent: var(--lava-chiara);
}

@font-face {
  font-family: 'Unbounded';
  src: url('assets/unbounded-600.woff') format('woff');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  background: var(--nero-fume);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.display {
  font-family: 'Unbounded', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.15;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 780px; }

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

/* ---------- NAV ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(20, 19, 25, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-logo img { width: 150px; height: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  color: var(--text-dim); text-decoration: none;
  font-size: 0.92rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--crema); }
.nav-links a.nav-cta {
  color: var(--nero-fume); background: var(--lava-chiara);
  padding: 8px 18px; border-radius: 999px; font-weight: 600;
}
.nav-links a.nav-cta:hover { background: var(--ambra); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--crema);
  margin: 5px 0; border-radius: 2px; transition: transform 0.25s, opacity 0.25s;
}

/* ---------- HERO ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 150px 0 100px; text-align: center;
}
.hero-glow {
  position: absolute; left: 50%; top: -180px; transform: translateX(-50%);
  width: 900px; height: 560px; pointer-events: none;
  background: radial-gradient(ellipse at center,
    rgba(255, 176, 92, 0.16) 0%,
    rgba(255, 106, 61, 0.08) 40%,
    transparent 70%);
}
.hero-inner {
  position: relative;
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: 56px; align-items: center; text-align: left;
}
.hero-text { min-width: 0; }
.hero-wordmark { width: min(400px, 78%); margin: 0 0 36px; }
.hero h1 {
  font-size: clamp(1.7rem, 4.6vw, 3rem);
  margin: 0 0 22px;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-dim);
  max-width: 560px; margin: 0 0 40px;
}
.hero-ctas { display: flex; gap: 16px; justify-content: flex-start; flex-wrap: wrap; }
.hero-visual { width: 100%; max-width: 640px; margin: 0; }
.hero-visual svg { width: 100%; height: auto; display: block; }
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-wordmark { margin: 0 auto 32px; }
  .hero h1 { margin: 0 auto 20px; max-width: 560px; }
  .hero-sub { margin: 0 auto 32px; max-width: 560px; }
  .hero-ctas { justify-content: center; }
  .hero-visual { max-width: 440px; margin: 0 auto; }
}

/* ---------- BOTTONI ---------- */
.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  font-family: 'Inter', sans-serif; font-size: 1rem; font-weight: 600;
  padding: 14px 32px; border-radius: 999px; border: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--lava-chiara); color: var(--nero-fume); }
.btn-primary:hover { background: var(--ambra); }
.btn-secondary {
  background: transparent; color: var(--crema);
  border: 1px solid rgba(243, 241, 236, 0.28);
}
.btn-secondary:hover { border-color: var(--lava-chiara); color: var(--lava-chiara); }

/* ---------- SEZIONI ---------- */
.section { padding: 96px 0; }
.section-title {
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  margin-bottom: 18px;
  text-align: center;
}
.section-intro {
  color: var(--text-dim); font-size: 1.08rem;
  max-width: 640px; margin: 0 auto 48px;
  text-align: center;
}

/* ---------- GRID / CARD ---------- */
.grid { display: grid; gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  transition: border-color 0.25s;
}
.card:hover { border-color: rgba(255, 106, 61, 0.45); }
.card-num {
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--lava-chiara); margin-bottom: 16px;
}
.card h3 { font-size: 1.06rem; font-weight: 600; margin-bottom: 10px; }
.card p { font-size: 0.93rem; color: var(--text-dim); }

/* ---------- PRODOTTI ---------- */
.products { gap: 28px; }
.product {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color 0.25s;
}
.product:hover { border-color: rgba(255, 106, 61, 0.45); }
.product-shot { aspect-ratio: 16 / 9; width: 100%; }
.product-shot img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.product-shot.placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  background:
    radial-gradient(ellipse at 50% 120%, rgba(255, 106, 61, 0.20) 0%, transparent 60%),
    var(--nero-fume);
  border-bottom: 1px solid var(--border);
}
.ph-name { font-size: 1.3rem; color: var(--crema); }
.ph-icon { width: 46px; height: 46px; margin-bottom: 4px; }
.form-consent { display: flex; align-items: flex-start; gap: 9px; margin: 2px 0 6px; font-size: 0.82rem; color: var(--text-dim); line-height: 1.5; cursor: pointer; }
.form-consent input { margin-top: 3px; flex-shrink: 0; accent-color: var(--lava-chiara); }
.form-consent a { color: var(--lava-chiara); }

/* Card Speedy — agente simbolico */
.speedy-visual {
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(ellipse at 50% 120%, rgba(255, 176, 92, 0.18) 0%, transparent 60%),
    var(--nero-fume);
  border-bottom: 1px solid var(--border);
  padding: 24px;
}
.sp-chat { display: flex; flex-direction: column; gap: 12px; width: min(420px, 100%); }
.sp-bubble {
  font-size: 0.85rem; line-height: 1.5; padding: 12px 16px;
  border-radius: 14px; max-width: 88%;
}
.sp-user {
  align-self: flex-end;
  background: rgba(243, 241, 236, 0.08);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-bottom-right-radius: 4px;
}
.sp-agent {
  align-self: flex-start;
  background: var(--obsidian);
  border: 1px solid rgba(255, 106, 61, 0.35);
  color: var(--crema);
  border-bottom-left-radius: 4px;
  display: flex; flex-direction: column; gap: 8px;
}
.sp-agent-row { align-self: flex-start; display: flex; align-items: flex-end; gap: 10px; max-width: 92%; }
.sp-agent-row .sp-agent { align-self: auto; max-width: 100%; }
.speedy-visual .sp-avatar {
  width: 44px; height: 44px; flex-shrink: 0; box-sizing: border-box;
  border-radius: 12px; padding: 3px; object-fit: contain;
  background: radial-gradient(circle at 50% 38%, rgba(255, 176, 92, 0.16), rgba(30, 30, 36, 0.7));
  border: 1px solid rgba(255, 106, 61, 0.28);
}
.sp-agent-name {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--lava-chiara);
}
.sp-actions { display: flex; gap: 8px; margin-top: 2px; }
.sp-pill {
  font-size: 0.72rem; font-weight: 600; padding: 4px 14px; border-radius: 999px;
}
.sp-pill-outline { border: 1px solid rgba(243, 241, 236, 0.3); color: var(--text-dim); }
.sp-pill-fill { background: var(--lava-chiara); color: var(--nero-fume); }
.ph-note {
  font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-faint);
}
.product-body { padding: 24px 26px 28px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.product-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.product-head h3 { font-size: 1.2rem; font-weight: 600; }
.product-head h3.with-icon { display: flex; align-items: center; gap: 10px; }
.product-logo { height: 26px; width: auto; display: block; }
.product-icon { width: 26px; height: 26px; border-radius: 7px; }
.product-body p { color: var(--text-dim); font-size: 0.95rem; }
.product-link {
  margin-top: auto; align-self: flex-start;
  color: var(--lava-chiara); text-decoration: none; font-weight: 600; font-size: 0.95rem;
}
.product-link:hover { color: var(--ambra); }

.badge {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.05em;
  padding: 4px 12px; border-radius: 999px; white-space: nowrap;
}
.badge-live { background: rgba(255, 106, 61, 0.15); color: var(--lava-chiara); border: 1px solid rgba(255, 106, 61, 0.4); }
.badge-soon { background: rgba(255, 176, 92, 0.12); color: var(--ambra); border: 1px solid rgba(255, 176, 92, 0.35); }
.badge-dev  { background: rgba(243, 241, 236, 0.07); color: var(--text-dim); border: 1px solid var(--border); }
.badge-ai   { background: rgba(255, 196, 107, 0.12); color: var(--ambra-2); border: 1px solid rgba(255, 196, 107, 0.35); }

/* ---------- CASE STUDY ---------- */
.section-panel {
  background: linear-gradient(180deg, rgba(30, 30, 36, 0.6) 0%, rgba(20, 19, 25, 0) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.case-sub {
  color: var(--ambra); font-weight: 600; font-size: 1rem;
  margin-bottom: 24px;
  text-align: center;
}
.case-text { color: var(--text-dim); font-size: 1.05rem; max-width: 800px; margin: 0 auto 48px; }
.case-gallery {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  max-width: 800px; margin: 0 auto 48px;
}
.case-gallery img {
  width: 100%; height: auto; border-radius: 14px;
  border: 1px solid var(--border);
}
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 800px; margin: 0 auto; }
.metric {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px 24px;
  display: flex; flex-direction: column; gap: 8px;
}
.metric-value { font-size: clamp(1.5rem, 3vw, 2rem); color: var(--lava-chiara); }
.metric-label { font-size: 0.88rem; color: var(--text-dim); }
.metrics-note { margin-top: 16px; font-size: 0.8rem; color: var(--text-faint); }
.rebrand {
  margin-top: 88px; padding-top: 64px;
  border-top: 1px solid var(--border); text-align: center;
}
.rebrand-kicker {
  display: inline-block; margin-bottom: 18px;
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  font-weight: 600; color: var(--lava-chiara);
  padding: 6px 14px; border-radius: 999px;
  background: rgba(255,106,61,.10); border: 1px solid rgba(255,106,61,.28);
}
.rebrand-title { font-size: clamp(1.7rem, 3.4vw, 2.3rem); font-weight: 600; margin-bottom: 10px; }
.rebrand-sub {
  color: var(--ambra); font-weight: 600; font-size: 1rem;
  margin-bottom: 22px; text-align: center;
}
.rebrand-text { color: var(--text-dim); font-size: 1.05rem; max-width: 680px; margin: 0 auto 44px; line-height: 1.7; }
.rebrand-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; max-width: 940px; margin: 0 auto; }
.rebrand-gallery img {
  width: 100%; height: auto; border-radius: 18px;
  border: 1px solid var(--border); background: var(--crema);
  box-shadow: 0 18px 44px rgba(0,0,0,.28);
}
.rebrand-deliverables {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  max-width: 940px; margin: 40px auto 0;
}
.deliverable {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 22px 18px;
  display: flex; flex-direction: column; gap: 6px; align-items: center;
}
.deliverable-v { font-size: clamp(1.6rem, 3vw, 2rem); color: var(--lava-chiara); line-height: 1; }
.deliverable-l { font-size: 0.85rem; color: var(--text-dim); }
.rebrand-cap {
  margin-top: 26px; font-size: 0.78rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-faint); font-weight: 600;
}
@media (max-width: 820px) {
  .rebrand-deliverables { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .rebrand-gallery { grid-template-columns: 1fr; gap: 20px; }
}

/* ---------- METODO ---------- */
.steps { margin-top: 12px; }
.step {
  border-left: 2px solid rgba(255, 106, 61, 0.4);
  padding: 4px 0 4px 24px;
}
.step-num { font-size: 1.6rem; color: var(--ambra); margin-bottom: 12px; }
.step h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 10px; }
.step p { font-size: 0.94rem; color: var(--text-dim); }

/* ---------- CHI SIAMO ---------- */
.prose p { color: var(--text-dim); font-size: 1.05rem; margin-bottom: 20px; }
.prose p:last-child { margin-bottom: 0; }

/* ---------- CONTATTI ---------- */
.section-contact { padding-bottom: 120px; }
.contact-grid {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: 40px; align-items: start;
}
.contact-left { text-align: left; }
.contact-left .section-title { text-align: left; }
.contact-left .section-intro { text-align: left; margin: 0 0 30px; max-width: 460px; }
.contact-cards { display: flex; flex-direction: column; gap: 12px; }
.contact-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 15px 18px; text-decoration: none;
  display: flex; align-items: center; gap: 14px;
  transition: border-color 0.2s;
}
.contact-card:hover { border-color: rgba(255, 106, 61, 0.5); }
.cc-ic { width: 42px; height: 42px; flex-shrink: 0; border-radius: 12px; background: rgba(255, 106, 61, 0.12); display: flex; align-items: center; justify-content: center; }
.cc-ic svg { width: 21px; height: 21px; stroke: var(--lava-chiara); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.cc-text { display: flex; flex-direction: column; gap: 2px; }
.cc-lbl { font-size: 0.68rem; letter-spacing: 0.11em; text-transform: uppercase; color: var(--text-faint); font-weight: 600; }
.cc-val { font-size: 0.98rem; color: var(--crema); font-weight: 500; }
.contact-right {
  border: 1px solid var(--border); border-radius: 16px;
  padding: 28px 28px 30px; background: rgba(243, 241, 236, 0.02);
}
#contact-form { text-align: left; }
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block; font-size: 0.88rem; font-weight: 500;
  color: var(--text-dim); margin-bottom: 8px;
}
.form-row input, .form-row textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--crema);
  font-family: 'Inter', sans-serif; font-size: 1rem;
  padding: 13px 16px;
  transition: border-color 0.2s;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none; border-color: var(--lava-chiara);
}
.form-row textarea { resize: vertical; min-height: 120px; }
.hp-field { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }
.btn-submit { display: block; margin: 14px 0 0; width: 100%; text-align: center; }
.form-status { margin-top: 16px; font-size: 0.94rem; min-height: 1.4em; }
.form-status.ok { color: var(--ambra); }
.form-status.err { color: var(--lava-chiara); }

/* ---------- SOCIAL ---------- */
.social-row { display: flex; align-items: center; gap: 12px; }
.contact-left .social-row { margin-top: 26px; }
.social-lbl {
  font-size: 0.72rem; letter-spacing: 0.11em; text-transform: uppercase;
  color: var(--text-faint); font-weight: 600; margin-right: 2px;
}
.social-btn {
  width: 46px; height: 46px; border-radius: 12px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.social-btn:hover {
  color: var(--lava-chiara);
  border-color: rgba(255, 106, 61, 0.5);
  background: rgba(255, 106, 61, 0.10);
}
.social-btn svg { width: 26px; height: 26px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 8px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--surface); overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item[open] { border-color: rgba(255, 106, 61, 0.4); }
.faq-item summary {
  list-style: none; cursor: pointer;
  padding: 20px 22px; font-size: 1.04rem; font-weight: 500; color: var(--crema);
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  flex-shrink: 0; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  color: var(--lava-chiara);
  transition: transform 0.25s ease;
}
.faq-icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 22px 20px; color: var(--text-dim); font-size: 0.96rem; }

/* ---------- FOOTER ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 40px; align-items: start;
}
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-brand { gap: 10px; }
.footer-symbol { width: 54px; height: 54px; }
.footer-name { font-weight: 600; font-size: 1.05rem; }
.footer-tag { font-size: 0.9rem; color: var(--text-dim); max-width: 240px; line-height: 1.5; }
.footer-head {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.11em;
  text-transform: uppercase; color: var(--text-faint); margin-bottom: 2px;
}
.footer-col a {
  color: var(--text-dim); text-decoration: none; font-size: 0.9rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--crema); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border);
}
.footer-copy { font-size: 0.84rem; color: var(--text-faint); }
.footer-social { gap: 12px; }

/* ---------- WHATSAPP FAB (solo mobile) ---------- */
.wa-fab { display: none; }

/* ---------- REVEAL ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.55s ease, transform 0.55s ease; }
  .reveal.visible { opacity: 1; transform: none; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .hero { padding: 140px 0 80px; }
  .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr; }
  .contact-right { padding: 22px 20px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 18px; }

  /* spazio per non far coprire il footer dalla CTA fissa */
  body { padding-bottom: 78px; }
  .wa-fab {
    display: inline-flex; align-items: center; gap: 9px;
    position: fixed; right: 16px; bottom: 16px; z-index: 300;
    background: var(--lava-chiara); color: var(--nero-fume);
    font-weight: 600; font-size: 0.95rem; text-decoration: none;
    padding: 13px 20px; border-radius: 999px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  }
  .wa-fab svg { width: 22px; height: 22px; }

  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 4px;
    background: var(--nero-fume);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 1rem; }
  .nav-links a.nav-cta { margin-top: 8px; }
  .nav.menu-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}