/* ContoFlow — design system "amaril · IBM-clean", lo stesso dell'applicazione
   e del sito Capture (da cui questo file proviene): Geist self-hosted, accento
   unico blu #1566F9, superfici piatte, card col solo bordo. Il wordmark in
   Avantt e gli extra di pagina stanno in site.css. */
   Capture · capture.css — sistema di brand per il web (amaril · IBM-clean)
   Font: Geist + Geist Mono (self-hosted). Accento UNICO: blu #1566F9.
   Estetica: piatta ed editoriale (riferimento IBM) — bianco, nero, grigio
   azzurrato, griglia rigorosa. L'aurora sopravvive SOLO come glow tenue sulle
   superfici scure (hero/CTA). Glass: un solo tier, riservato alla nav.
   Nessun font di terze parti a runtime, nessun cookie, nessun tracker.
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Font (woff2 in ../assets/fonts) ─────────────────────────────────────── */
@font-face { font-family: "Geist"; font-weight: 400; font-style: normal; font-display: swap; src: url("fonts/Geist-400.woff2") format("woff2"); }
@font-face { font-family: "Geist"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/Geist-500.woff2") format("woff2"); }
@font-face { font-family: "Geist"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/Geist-600.woff2") format("woff2"); }
@font-face { font-family: "Geist Mono"; font-weight: 400; font-style: normal; font-display: swap; src: url("fonts/GeistMono-400.woff2") format("woff2"); }
@font-face { font-family: "Geist Mono"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/GeistMono-500.woff2") format("woff2"); }

/* ── Token ───────────────────────────────────────────────────────────────── */
:root {
  --brand:       #1566F9;
  --brand-600:   #0F55DB;
  --brand-700:   #0E47B6;
  --brand-soft:  #E0EFFF;
  --brand-50:    #E8F2FF;
  --brand-100:   #D5E9FF;
  --ink-900: #101215; --ink-800: #222427; --ink-700: #35383C; --ink-600: #4F5358;
  --ink-500: #6B6F75; --ink-400: #8B8F96; --ink-300: #ADB1B8; --ink-200: #CDD1D8;
  --ink-150: #DADEE5; --ink-100: #E6EAF0; --ink-75: #EBEFF4; --ink-50: #F0F4F9;
  --paper: #FFFFFF;           /* superficie card */
  --bg: #FFFFFF;              /* fondo pagina: bianco pieno (IBM-clean) */
  --bg-alt: #F2F4F8;          /* grigio azzurrato per sezioni alternate */
  --ok-bg:#E0F5E5; --ok-line:#B1DABB; --ok-fg:#2B6339;
  --warn-bg:#FEECCD; --warn-line:#EAC98D; --warn-fg:#885716;
  --err-bg:#FFE6E3; --err-line:#FFBCB5; --err-fg:#AC312E;
  --info-bg:#DBF3FF; --info-line:#AAD5EC; --info-fg:#2E6A8A;
  --dark-bg:#0A0D12; --dark-paper:#1A1E24; --dark-line:#2A2E35; --brand-on-dark:#458CFF;

  --font: "Geist", -apple-system, "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", "SF Mono", Menlo, Consolas, monospace;
  --r-1:4px; --r-2:6px; --r-3:8px; --r-4:12px; --r-pill:9999px;
  --shadow-sm: 0 1px 2px rgba(16,18,21,.05);
  --shadow-md: 0 4px 16px -6px rgba(16,18,21,.16);
  --shadow-lg: 0 18px 48px -16px rgba(16,18,21,.26);
  --wrap: 1180px;
}

/* ── Reset / base ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font); color: var(--ink-800);
  background: var(--bg); line-height: 1.55;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-700); }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
h1,h2,h3,h4 { color: var(--ink-900); letter-spacing: -0.02em; line-height: 1.1; font-weight: 600; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
strong { font-weight: 600; color: var(--ink-900); }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 56px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--ink-100); border-bottom: 1px solid var(--ink-100); }
.section-dark { background: var(--dark-bg); color: #fff; position: relative; overflow: hidden; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.section-dark .kicker { color: var(--brand-on-dark); }
.section-dark p { color: var(--ink-300); }

/* ── Tipografia utility ──────────────────────────────────────────────────── */
.kicker { font-family: var(--mono); font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .16em; color: var(--brand); margin: 0 0 14px; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--ink-600); max-width: 720px; }
.muted { color: var(--ink-500); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ── Link con freccia (pattern IBM) ──────────────────────────────────────── */
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; font-size: 15px; }
.link-arrow::after { content: "→"; transition: transform .14s; }
.link-arrow:hover::after { transform: translateX(4px); }

/* ── Glass — UNICO tier, riservato alla topnav ───────────────────────────── */
.glass {
  background: rgba(255,255,255,.72);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--ink-100);
}

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.topnav { position: sticky; top: 0; z-index: 50; height: 64px; display: flex; align-items: center; gap: 20px;
  background: rgba(255,255,255,.72); border-bottom: 1px solid var(--ink-100);
  -webkit-backdrop-filter: blur(18px) saturate(160%); backdrop-filter: blur(18px) saturate(160%); }
.topnav .wrap { display: flex; align-items: center; gap: 20px; width: 100%; }
.topnav .brand { height: 22px; }
.topnav .brand img { height: 22px; width: auto; }
.topnav nav { display: flex; gap: 24px; margin-left: 8px; }
.topnav nav a { color: var(--ink-600); font-size: 14px; font-weight: 500; }
.topnav nav a:hover { color: var(--ink-900); }
.topnav nav a[aria-current="page"] { color: var(--ink-900); box-shadow: inset 0 -2px 0 var(--brand); padding-bottom: 21px; }
.topnav .spacer { flex: 1; }

/* ── Bottoni (piatti, angoli quasi netti) ────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 8px; height: 42px; padding: 0 20px; border-radius: var(--r-1);
  border: 1px solid var(--ink-900); background: transparent; color: var(--ink-900);
  font: inherit; font-size: 14px; font-weight: 500; cursor: pointer; white-space: nowrap;
  transition: background .14s, border-color .14s, color .14s; }
.btn:hover { background: var(--ink-50); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-700); border-color: var(--brand-700); color: #fff; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--ink-700); }
.btn-ghost:hover { background: var(--ink-75); }
.btn-lg { height: 50px; padding: 0 26px; font-size: 15px; }
.btn-on-dark { background: transparent; border-color: rgba(255,255,255,.32); color: #fff; }
.btn-on-dark:hover { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.5); color: #fff; }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero { position: relative; padding: 110px 0 92px; overflow: hidden; }
.hero .kicker { color: var(--brand); }
.hero h1 { max-width: 16ch; }
.hero .lede { margin-top: 10px; }
.hero .cta-row { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.hero-dark { background: var(--dark-bg); color: #fff; }
/* aurora residua: SOLO sulle superfici scure, tenue */
.hero-dark::before, .section-dark::before { content:""; position:absolute; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(38vmax 38vmax at 14% 8%, rgba(21,102,249,.20), transparent 60%),
    radial-gradient(42vmax 42vmax at 90% 0%, rgba(21,102,249,.10), transparent 60%); }
.hero-dark .wrap, .section-dark .wrap { position: relative; z-index: 1; }
.hero-dark h1 { color: #fff; }
.hero-dark .kicker { color: var(--brand-on-dark); }
.hero-dark .lede { color: var(--ink-300); }

/* ── Trust bar ───────────────────────────────────────────────────────────── */
.trust { display: flex; align-items: center; gap: 34px; flex-wrap: wrap; }
.trust span { font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-500); font-family: var(--mono); }

/* ── Card / grid (piatte: bordo, niente ombra) ───────────────────────────── */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--paper); border: 1px solid var(--ink-150); border-radius: var(--r-3); padding: 28px; }
.card-hi { background: var(--brand); border-color: var(--brand); color: #fff; }
.card-hi h3 { color: #fff; } .card-hi p { color: #D7E6FF; }
.card .bar { width: 34px; height: 4px; border-radius: 2px; background: var(--brand); margin-bottom: 16px; }

/* ── Tile cliccabile (pattern IBM: bordo che si accende) ─────────────────── */
a.tile { display: block; color: inherit; }
.tile { background: var(--paper); border: 1px solid var(--ink-150); border-radius: var(--r-3); padding: 28px;
  transition: border-color .14s; }
.tile:hover { border-color: var(--brand); }
.tile .link-arrow { margin-top: 14px; }

/* ── Stat (pattern IBM: filetto sopra + numero grande) ───────────────────── */
.stat { border-top: 2px solid var(--ink-900); padding-top: 16px; }
.stat .label { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-500); }
.stat .value { font-size: clamp(2.4rem, 4vw, 3.4rem); font-weight: 600; color: var(--brand); letter-spacing: -0.03em; margin: 6px 0 4px; font-variant-numeric: tabular-nums; line-height: 1; }
.stat .note { font-size: 13.5px; color: var(--ink-600); }

/* ── Feature ─────────────────────────────────────────────────────────────── */
.feature h3 { margin: 0 0 6px; }
.feature p { margin: 0; color: var(--ink-600); font-size: 14.5px; }
.feature .ico { width: 40px; height: 40px; border-radius: var(--r-2); background: var(--brand-soft); display: grid; place-items: center; margin-bottom: 14px; }
.feature .ico span { width: 16px; height: 16px; border-radius: 3px; background: var(--brand); }

/* ── Steps ───────────────────────────────────────────────────────────────── */
.steps { counter-reset: s; display: grid; gap: 18px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step .n { counter-increment: s; flex: none; width: 34px; height: 34px; border-radius: var(--r-pill); background: var(--brand); color: #fff; font-weight: 600; display: grid; place-items: center; font-size: 15px; }
.step .n::before { content: counter(s); }
.step h3 { margin: 4px 0 2px; }
.step p { margin: 0; color: var(--ink-600); font-size: 14.5px; }

/* ── KPI (variante compatta dello stat) ──────────────────────────────────── */
.kpi { text-align: left; border-top: 2px solid var(--ink-900); padding-top: 14px; }
.kpi .label { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-500); }
.kpi .value { font-size: 2.4rem; font-weight: 600; color: var(--brand); letter-spacing: -0.02em; margin: 4px 0; font-variant-numeric: tabular-nums; }
.kpi .note { font-size: 13px; color: var(--ink-600); }

/* ── Panel / table ───────────────────────────────────────────────────────── */
.panel { border: 1px solid var(--ink-150); border-radius: var(--r-3); overflow: hidden; background: var(--paper); }
table.dc { width: 100%; border-collapse: collapse; font-size: 14px; }
table.dc thead th { text-align: left; padding: 12px 16px; font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-500); background: var(--ink-50); border-bottom: 1px solid var(--ink-150); }
table.dc tbody td { padding: 12px 16px; border-bottom: 1px solid var(--ink-100); color: var(--ink-700); }
table.dc tbody td:first-child { font-weight: 600; color: var(--ink-900); }
table.dc tbody tr:last-child td { border-bottom: none; }
table.dc .hl { background: var(--brand-soft); color: var(--brand-700); font-weight: 500; }

/* ── Badge ───────────────────────────────────────────────────────────────── */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: var(--r-pill); font-size: 12px; font-weight: 500; border: 1px solid transparent; }
.badge-ok { background: var(--ok-bg); color: var(--ok-fg); border-color: var(--ok-line); }
.badge-warn { background: var(--warn-bg); color: var(--warn-fg); border-color: var(--warn-line); }
.badge-info { background: var(--info-bg); color: var(--info-fg); border-color: var(--info-line); }
.badge-brand { background: var(--brand-soft); color: var(--brand-700); border-color: var(--brand-100); }

/* ── Callout ─────────────────────────────────────────────────────────────── */
.callout { border-left: 3px solid var(--brand); background: var(--brand-50); border-radius: 0 var(--r-2) var(--r-2) 0; padding: 20px 22px; }
.callout h3 { margin: 0 0 6px; }
.callout p { margin: 0; color: var(--ink-700); }

/* ── Screenshot frame (immagini prodotto) ────────────────────────────────── */
.shot { border: 1px solid var(--ink-150); border-radius: var(--r-4); overflow: hidden; background: var(--paper); box-shadow: var(--shadow-md); }
.shot img { width: 100%; }
.shot-caption { font-size: 12.5px; color: var(--ink-500); margin-top: 10px; text-align: center; }

/* ── CTA band ────────────────────────────────────────────────────────────── */
.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: 10px; }
.cta-band .cta-row { justify-content: center; display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer { background: var(--dark-bg); color: var(--ink-300); padding: 56px 0 40px; }
.footer .brand img { height: 26px; margin-bottom: 14px; }
.footer a { color: var(--ink-300); font-size: 14px; }
.footer a:hover { color: #fff; }
.footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer h4 { color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; font-family: var(--mono); font-weight: 500; margin: 0 0 12px; }
.footer .fine { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--dark-line); font-size: 12.5px; color: var(--ink-400); }

/* ── Utilities ───────────────────────────────────────────────────────────── */
.center { text-align: center; }
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.section-head { max-width: 760px; margin: 0 0 48px; text-align: left; }   /* IBM-clean: a sinistra di default */
.section-head.centered { margin: 0 auto 48px; text-align: center; }
.divider { border: none; border-top: 1px solid var(--ink-150); margin: 0; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .topnav nav { display: none; }
  .footer .cols { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: .01ms !important; }
}