/* ==========================================================
   Finance Tracker — Landing styles
   Direzione "Calm Authority"
   Allineato al design system della SPA: Deep Teal + Inter
   ========================================================== */

/* ------- Design tokens ------- */
:root {
  /* Brand Deep Teal */
  --teal-950: #043D3D;
  --teal-900: #064E4E;
  --teal-800: #0A6B6B;
  --teal-700: #0D7E7E;
  --teal-600: #0F9191;
  --teal-500: #11A3A3;
  --teal-400: #2DB8B8;
  --teal-300: #5CCCCC;
  --teal-200: #99DEDE;
  --teal-100: #CCF0F0;
  --teal-50:  #E8F8F8;

  /* Semantici */
  --positive-600: #16A34A;
  --positive-500: #22C55E;
  --negative-600: #DC2626;

  /* Superfici */
  --bg-app: #FFFFFF;
  --bg-soft: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-dark: #043D3D;
  --bg-footer: #0F172A;

  /* Bordi */
  --border-card: #E2E8F0;
  --border-soft: #F1F5F9;

  /* Testo */
  --text-primary: #0F172A;
  --text-heading: #1E293B;
  --text-body: #334155;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --text-on-dark: #FFFFFF;
  --text-on-dark-soft: #99DEDE;

  /* Tipografia */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Layout */
  --container: 1080px;
  --container-narrow: 720px;
  --radius-card: 16px;
  --radius-btn: 8px;
}

/* ------- Reset minimale ------- */
*, *::before, *::after { box-sizing: border-box; }
html { font-family: var(--font-sans); font-size: 16px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg-app); color: var(--text-body); line-height: 1.55; }
img { max-width: 100%; display: block; }
a { color: var(--teal-700); text-decoration: none; transition: color 150ms ease; }
a:hover { color: var(--teal-600); }
code { font-family: var(--font-mono); font-size: 0.9em; background: var(--bg-soft); padding: 1px 5px; border-radius: 4px; color: var(--text-primary); }

/* Tabular numbers per i numeri finanziari */
.financial-number, .ap-kpi-val, .price-price {
  font-variant-numeric: tabular-nums lining-nums;
  letter-spacing: -0.01em;
}

/* ------- Container ------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: var(--container-narrow); }
.text-center { text-align: center; }

/* ------- Tipografia heading ------- */
h1, h2, h3 { color: var(--text-heading); font-weight: 600; letter-spacing: -0.02em; }
h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 20px; }
h2 { font-size: clamp(26px, 3.5vw, 36px); line-height: 1.2; margin: 0 0 16px; }
h3 { font-size: 17px; line-height: 1.3; margin: 12px 0 6px; font-weight: 600; }

.eyebrow {
  font-size: 12px;
  color: var(--teal-600);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  margin: 0 0 14px;
}

.lede {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-body);
  margin: 0 0 28px;
  max-width: 560px;
}

.section-lede {
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-body);
  max-width: 720px;
  margin: 0 0 36px;
}

/* ------- Button ------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 150ms ease;
  white-space: nowrap;
}
.btn-lg { padding: 13px 24px; font-size: 15px; }

.btn-primary { background: var(--teal-600); color: white; }
.btn-primary:hover { background: var(--teal-700); color: white; }

.btn-ghost { background: transparent; color: var(--teal-700); border-color: var(--teal-600); }
.btn-ghost:hover { background: var(--teal-50); color: var(--teal-700); }

.btn-light { background: white; color: var(--teal-950); }
.btn-light:hover { background: var(--teal-50); color: var(--teal-950); }

/* ------- Nav ------- */
.nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border-soft);
  z-index: 50;
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text-primary);
  font-weight: 600;
}
.nav-brand:hover { color: var(--text-primary); }
.brand-mark {
  width: 32px;
  height: 32px;
  display: block;
  flex-shrink: 0;
}
.brand-text { font-size: 16px; letter-spacing: -0.01em; }

.nav-links { display: flex; gap: 22px; margin-left: 20px; flex: 1; }
.nav-links a { color: var(--text-body); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--teal-700); }

.nav-cta { display: flex; gap: 8px; align-items: center; }

/* ------- Hero ------- */
.hero {
  padding: 64px 0 80px;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-cta { margin-bottom: 22px; display: flex; gap: 10px; flex-wrap: wrap; }
.hero-trust {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin: 0;
}
.hero-trust span { margin: 0 6px; color: var(--text-disabled, #CBD5E1); }

/* App preview (visual hero a destra) */
.app-preview {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-card);
  padding: 18px;
  box-shadow: 0 12px 32px -12px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
}
.ap-head {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}
.ap-kpi-row { display: flex; gap: 8px; margin-bottom: 12px; }
.ap-kpi {
  flex: 1;
  background: var(--bg-soft);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
}
.ap-kpi-label { font-size: 11px; color: var(--text-secondary); margin-bottom: 4px; }
.ap-kpi-val { font-size: 16px; color: var(--text-primary); font-family: var(--font-mono); font-weight: 500; }
.ap-kpi-pos { color: var(--positive-600); }

.ap-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 90px;
  padding: 8px;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  margin-bottom: 12px;
}
.ap-bar { flex: 1; border-radius: 3px 3px 1px 1px; }

.ap-foot {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ------- Section ------- */
.section { padding: 80px 0; }
.section-soft { background: var(--bg-soft); }

/* ------- Cards generiche ------- */
.cards-3, .cards-4 {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-card);
  padding: 22px;
  transition: box-shadow 200ms ease, transform 200ms ease;
}
.card:hover { box-shadow: 0 6px 20px -8px rgba(15, 23, 42, 0.10); transform: translateY(-1px); }
.card p { font-size: 14px; line-height: 1.55; color: var(--text-body); margin: 0; }

.card-icon {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: var(--teal-50);
  color: var(--teal-600);
  font-size: 20px;
  margin-bottom: 4px;
}

/* Step card */
.step-card { position: relative; }
.step-num {
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--teal-600);
  font-weight: 500;
  letter-spacing: -0.02em;
  display: block;
  margin-bottom: 8px;
}

/* Security cards */
.security-grid { grid-template-columns: repeat(3, 1fr); }
.card-sec {
  background: var(--teal-50);
  border: 1px solid var(--teal-100);
  border-radius: 14px;
  padding: 20px;
}
.card-sec h3 { color: var(--teal-950); margin-top: 10px; }
.card-sec p { color: var(--text-body); font-size: 13px; line-height: 1.55; margin: 0; }
.card-sec .card-icon { background: white; color: var(--teal-700); }
.card-sec-honest { background: var(--bg-soft); border-color: var(--border-card); }
.card-sec-honest h3 { color: var(--text-heading); }
.card-sec-honest .card-icon { background: white; color: var(--text-secondary); }

/* ------- Pricing ------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 36px;
}
.price-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-card);
  padding: 28px 22px;
  text-align: center;
}
.price-card-featured {
  border: 2px solid var(--teal-600);
  background: white;
  box-shadow: 0 14px 36px -16px rgba(15, 145, 145, 0.32);
}
.price-name {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin: 0 0 12px;
}
.price-price {
  font-size: 32px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.price-period { font-size: 14px; color: var(--text-secondary); font-weight: 400; }
.price-tag {
  font-size: 14px;
  color: var(--text-body);
  font-style: italic;
  margin: 0 0 18px;
}
.price-btn { width: 100%; }
.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  color: var(--teal-700);
  background: var(--teal-50);
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.badge-featured {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal-600);
  color: white;
}
.pricing-foot {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  margin: 28px 0 0;
  font-style: italic;
}

/* ------- FAQ ------- */
.faq {
  border-bottom: 1px solid var(--border-card);
  padding: 18px 4px;
  cursor: pointer;
}
.faq summary {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--text-muted);
  margin-left: 12px;
  transition: transform 200ms ease;
}
.faq[open] summary::after { content: '−'; color: var(--teal-600); }
.faq p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.6;
  margin: 12px 0 6px;
}
.faq ul {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.6;
  margin: 8px 0 6px;
  padding-left: 22px;
}
.faq ul li {
  margin: 6px 0;
}
.faq ul li::marker {
  color: var(--teal-600);
}

/* ------- CTA finale ------- */
.section-dark {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}
.section-dark h2 { color: white; }
.cta-logo {
  display: block;
  margin: 0 auto 18px;
  width: 56px;
  height: 56px;
}
.cta-lede {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-on-dark-soft);
  margin: 0 auto 28px;
  max-width: 540px;
}
.cta-secondary {
  font-size: 14px;
  color: var(--text-on-dark-soft);
  margin: 18px 0 0;
}
.cta-secondary a {
  color: white;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.cta-secondary a:hover {
  color: var(--teal-50);
}
.cta-trust {
  font-size: 12px;
  color: var(--text-on-dark-soft);
  margin-top: 18px;
  letter-spacing: 0.02em;
}

/* ------- Footer ------- */
.footer {
  background: var(--bg-footer);
  color: var(--text-muted);
  padding: 48px 0 24px;
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer-col p.footer-h {
  color: white;
  font-size: 12px;
  font-weight: 600;
  margin: 0 0 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.footer-col a {
  display: block;
  color: #94A3B8;
  margin: 6px 0;
  font-size: 13px;
}
.footer-col a:hover { color: white; }
.footer-foot {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid #334155;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-foot p { margin: 0; color: #94A3B8; }
.footer-logo { width: 28px; height: 28px; flex-shrink: 0; opacity: 0.85; }

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .cards-3, .security-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 36px auto 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-cta .btn-ghost { display: none; }
  .section { padding: 56px 0; }
  .hero { padding: 40px 0 56px; }
  .cards-4, .cards-3, .security-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* ==========================================================
   Stati di focus visibili (a11y)
   ========================================================== */
.btn:focus-visible,
.faq summary:focus-visible,
a:focus-visible {
  outline: 2px solid var(--teal-600);
  outline-offset: 3px;
  border-radius: var(--radius-btn);
}

/* Riduzione movimento per chi lo preferisce */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}