:root {
  --bg: #FFFBF7;
  --bg-alt: #FBF1E9;
  --ink: #241E1B;
  --ink-soft: #5B514C;
  --primary: #C05C3F;
  --primary-dark: #9E4630;
  --accent: #D9A441;
  --card-bg: #FFFFFF;
  --border: #EEE1D6;
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1B1613;
    --bg-alt: #241D19;
    --ink: #F5EEE8;
    --ink-soft: #C7B9B0;
    --primary: #E07A5A;
    --primary-dark: #F2946F;
    --accent: #E8B45C;
    --card-bg: #241D19;
    --border: #3A2E27;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--primary); }

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--border); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  flex-wrap: nowrap;
}
.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--primary); }
.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 9px 18px;
  border-radius: 999px;
}

.main-nav a:not(.nav-cta) { white-space: nowrap; }

@media (max-width: 920px) {
  .main-nav a:not(.nav-cta) { display: none; }
}

/* Hero */
.hero { padding: 96px 0 72px; text-align: center; }
.eyebrow {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 13px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  max-width: 820px;
  margin: 0 auto 20px;
  letter-spacing: -0.02em;
}
.hero-sub {
  max-width: 640px;
  margin: 0 auto 32px;
  font-size: 18px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.section { padding: 80px 0; }
.section h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  max-width: 700px;
  letter-spacing: -0.01em;
}

/* Problema */
.problema { background: var(--bg-alt); }
.problema-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin: 36px 0;
}
.problema-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.problema-card h3 { color: var(--primary); font-size: 18px; }
.problema-lead { font-size: 19px; font-weight: 600; color: var(--ink); }

/* Moduli */
.moduli-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 36px;
}
.modulo-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--card-bg);
}
.modulo-card h3 { font-size: 18px; margin-bottom: 8px; }
.modulo-card p { margin: 0; font-size: 15px; }

/* IA section */
.ia-section {
  background: linear-gradient(180deg, #241E1B 0%, #2E241F 100%);
  color: #fff;
}
.ia-section h2 { color: #fff; }
.ia-section p { color: #D9CCC2; }
.eyebrow-light { color: var(--accent); }
.ia-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 36px;
}
.ia-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 22px;
}
.ia-card h3 { color: var(--accent); font-size: 17px; }
.ia-card p { color: #E5DAD1; margin: 0; font-size: 15px; }

/* Sito cliente */
.sito-cliente-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 800px) {
  .sito-cliente-inner { grid-template-columns: 1fr; }
}
.check-list { list-style: none; padding: 0; margin: 24px 0 0; }
.check-list li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
  color: var(--ink-soft);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}
.mock-browser {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg);
  overflow: hidden;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,.25);
}
.mock-browser-bar {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.mock-browser-bar span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border);
}
.mock-browser-body { padding: 28px; }
.mock-line {
  height: 12px;
  border-radius: 6px;
  background: var(--bg-alt);
  margin-bottom: 12px;
}
.mock-line-title { height: 20px; width: 70%; background: var(--primary); opacity: .25; }
.mock-line.short { width: 45%; }
.mock-chip {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
}

/* Waitlist */
.waitlist { background: var(--bg-alt); text-align: center; }
.waitlist-inner { max-width: 560px; }
.waitlist-form {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.waitlist-form input {
  flex: 1;
  min-width: 240px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--ink);
  font-size: 15px;
}
.waitlist-form input:focus { outline: 2px solid var(--primary); }
.waitlist-message { margin-top: 16px; font-weight: 600; min-height: 1.2em; }
.waitlist-message.ok { color: #3E8E5A; }
.waitlist-message.error { color: var(--primary-dark); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--ink-soft);
}
.footer-brand { font-weight: 800; color: var(--ink); font-size: 18px; margin-bottom: 6px; }
.footer-inner p { margin: 0 0 4px; }
.footer-inner a { color: var(--ink-soft); }