/* AIREP landing — stile editoriale (stessi token dei report) + stati animazione. */

:root {
  --paper: #f7f4ef;
  --panel: #efe9df;
  --ink: #211d18;
  --body: #3a342c;
  --muted: #6b6155;
  --muted2: #9a8f7f;
  --accent: #B3271B;
  --accent-dark: #7d1a12;
  --line: #d8cfc1;
  --track: #e6ddd0;
}

* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper); color: var(--ink);
  font-family: 'IBM Plex Sans', 'Segoe UI', sans-serif;
  font-size: 15px; line-height: 1.7; overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { font-family: 'Newsreader', Georgia, serif; font-weight: 500; letter-spacing: -.01em; }
h2 { font-size: clamp(30px, 4.6vw, 46px); line-height: 1.08; margin: 10px 0 18px; }
.kicker {
  font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--accent);
  font-weight: 600;
}
.lead { font-size: 17px; color: var(--body); }
b { color: var(--ink); }

/* ---------- loader ---------- */
#loader {
  position: fixed; inset: 0; z-index: 60; background: var(--ink);
  display: flex; align-items: center; justify-content: center;
}
.loader-brand {
  font-family: 'Newsreader', Georgia, serif; font-weight: 600; font-size: 44px;
  color: var(--paper); letter-spacing: .02em;
}
.loader-bar { width: 180px; height: 2px; background: rgba(247,244,239,.18); margin: 18px auto 0; overflow: hidden; }
.loader-bar span { display: block; height: 100%; width: 0; background: var(--accent); }

/* ---------- sipario di transizione ---------- */
#curtain {
  position: fixed; inset: 0; z-index: 70; background: var(--accent-dark);
  transform: scaleY(0); transform-origin: bottom;
  display: flex; align-items: center; justify-content: center; pointer-events: none;
}
.curtain-brand {
  font-family: 'Newsreader', Georgia, serif; font-weight: 600; font-size: 40px;
  color: var(--paper); opacity: 0;
}

/* ---------- barra progresso scroll ---------- */
#scrollbar-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 55;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
}

/* ---------- topbar ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  padding: 14px 32px; background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.topbar-brand { font-family: 'Newsreader', Georgia, serif; font-weight: 600; font-size: 22px; }
.topbar-nav { display: flex; gap: 22px; margin-left: auto; }
.topbar-nav a {
  color: var(--muted); font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
}
.topbar-nav a:hover { color: var(--accent); }
.btn-login {
  margin-left: auto;                 /* spinge il bottone all'estremo destro della topbar */
  border: 1px solid var(--accent); padding: 8px 18px; font-size: 12px;
  letter-spacing: .12em; text-transform: uppercase; font-weight: 600;
  transition: background .25s, color .25s;
}
.btn-login:hover { background: var(--accent); color: var(--paper); }

/* su schermi stretti la topbar non ci sta: i link vivono comunque nel footer */
@media (max-width: 640px) {
  .topbar { padding: 10px 16px; gap: 12px; }
  .topbar-nav { display: none; }
  .topbar-brand { font-size: 18px; }
  .btn-login { margin-left: auto; padding: 7px 12px; font-size: 11px; letter-spacing: .08em; }
}

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: 120px 6vw 80px; overflow: hidden;
}
/* --- sfondo "voci AI": frammenti tipografici che driftano dietro l'hero --- */
.voices { position: absolute; inset: 0; overflow: hidden; z-index: 1; }
.voices .v {
  position: absolute; top: 0; left: 0; white-space: nowrap; will-change: transform;
  user-select: none; pointer-events: none; line-height: 1;
}
.voices .v.serif { font-family: 'Newsreader', Georgia, serif; font-weight: 500; font-style: italic; }
.voices .v.sans  { font-family: 'IBM Plex Sans', sans-serif; font-weight: 500;
                   letter-spacing: .02em; }
.voices .v.mono  { font-family: 'IBM Plex Mono', Consolas, monospace; letter-spacing: .04em; }
.voices .v.ink   { color: color-mix(in srgb, var(--ink) 100%, transparent); }
.voices .v.red   { color: var(--accent); }
.hero-content { position: relative; z-index: 2; max-width: 900px; }
.hero-kicker { margin-bottom: 18px; }
.hero-title {
  font-size: clamp(44px, 8vw, 96px); line-height: 1.0; letter-spacing: -.02em; font-weight: 500;
}
.hero-title em { font-style: italic; color: var(--accent); }
.hero-title .line { display: inline-block; overflow: hidden; vertical-align: top; }
.hero-sub { margin: 26px 0 34px; max-width: 560px; font-size: 17px; color: var(--body); }
.hero-cta { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-block; background: var(--accent); color: var(--paper);
  padding: 14px 30px; font-size: 13px; letter-spacing: .14em; text-transform: uppercase;
  font-weight: 700; transition: background .25s, transform .25s;
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-primary.big { padding: 18px 44px; font-size: 14px; }
.btn-ghost { color: var(--muted); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; }
.btn-ghost:hover { color: var(--accent); }
.scroll-cue {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  width: 22px; height: 36px; border: 1px solid var(--muted2); border-radius: 12px; z-index: 2;
}
.scroll-cue span {
  position: absolute; top: 7px; left: 50%; width: 3px; height: 8px; margin-left: -1.5px;
  background: var(--accent); border-radius: 2px; animation: cue 1.6s infinite;
}
@keyframes cue { 0% {transform: translateY(0); opacity: 1} 70% {transform: translateY(12px); opacity: 0} 100% {opacity: 0} }

/* ---------- sezioni ---------- */
.page-sec { max-width: 1280px; margin: 0 auto; padding: 120px 6vw; border-top: 1px solid var(--line); }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 8px; }
@media (max-width: 800px) { .cols { grid-template-columns: 1fr; } }

.bigstats { display: flex; gap: 0; margin-top: 64px; border-top: 1px solid var(--line); padding-top: 30px; }
.stat { flex: 1; }
.stat + .stat { border-left: 1px solid var(--line); padding-left: 36px; margin-left: 36px; }
.stat-num { font-family: 'Newsreader', Georgia, serif; font-size: 64px; font-weight: 500; line-height: 1; color: var(--accent); }
.stat-lbl { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }

/* steps (02) */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--panel); border-left: 3px solid var(--accent); padding: 26px 24px; }
.step-num { font-family: 'IBM Plex Mono', Consolas, monospace; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); }
.step h3 { font-size: 22px; margin: 10px 0 8px; }
.step p { font-size: 13.5px; color: var(--body); }

/* report mock (03) */
.report-wrap { display: grid; grid-template-columns: 340px 1fr; gap: 56px; align-items: center; margin-top: 36px; }
@media (max-width: 900px) { .report-wrap { grid-template-columns: 1fr; } }
.report-mock {
  background: var(--paper); border: 1px solid var(--line); padding: 30px 26px;
  box-shadow: 0 30px 60px -20px rgba(33,29,24,.25); will-change: transform;
}
.rm-brand { font-family: 'Newsreader', Georgia, serif; font-weight: 600; font-size: 20px; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.rm-kicker { font-size: 8.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); margin-top: 18px; }
.rm-target { font-family: 'Newsreader', Georgia, serif; font-size: 30px; margin-top: 4px; }
.rm-score { font-family: 'Newsreader', Georgia, serif; font-size: 92px; line-height: .9; color: var(--accent); margin-top: 18px; }
.rm-band { display: inline-block; background: var(--accent); color: #fff; font-size: 9px; font-weight: 700; letter-spacing: .3em; padding: 4px 10px; margin-top: 10px; }
.rm-bars { margin-top: 22px; display: grid; gap: 10px; }
.rm-bar { height: 4px; background: var(--track); }
.rm-bar i { display: block; height: 100%; background: var(--accent); }
.report-points { list-style: none; display: grid; gap: 18px; }
.report-points li { border-top: 1px solid var(--line); padding-top: 14px; font-size: 14.5px; color: var(--body); }

/* cards tilt (04) */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 42px; perspective: 1000px; }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .cards { grid-template-columns: 1fr; } }
.card {
  position: relative; background: var(--panel); padding: 30px 26px; overflow: hidden;
  transform-style: preserve-3d; transition: box-shadow .3s; will-change: transform;
}
.card:hover { box-shadow: 0 24px 50px -18px rgba(33,29,24,.3); }
.card-glare {
  position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(420px circle at var(--gx, 50%) var(--gy, 50%), rgba(255,255,255,.5), transparent 55%);
}
.card:hover .card-glare { opacity: 1; }
.card-num { font-family: 'Newsreader', Georgia, serif; font-size: 40px; color: var(--accent); line-height: 1; }
.card h3 { font-size: 21px; margin: 12px 0 8px; transform: translateZ(24px); }
.card p { font-size: 13.5px; color: var(--body); transform: translateZ(14px); }

/* CTA finale + footer */
.cta-final { text-align: center; }
.cta-final .lead { max-width: 560px; margin: 0 auto 34px; }
.foot-mono { font-family: 'IBM Plex Mono', Consolas, monospace; font-size: 11px; color: var(--muted2); }

/* ============================ FOOTER ============================ */
.site-footer { border-top: 1px solid var(--line); background: var(--panel); }
.foot-grid {
  max-width: 1280px; margin: 0 auto; padding: 64px 6vw 44px;
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px 40px;
  align-items: start;
}
.foot-col { min-width: 0; }                       /* evita che il testo sfondi la colonna */
.foot-logo { display: inline-block; line-height: 0; margin-bottom: 18px; }
.foot-logo img { border-radius: 16px; max-width: 100%; height: auto; display: block; }
.foot-desc {
  color: var(--body); font-size: 13.5px; line-height: 1.65;
  max-width: 42ch; margin-bottom: 16px;
}
.foot-brand .foot-mono { line-height: 1.8; }
.foot-title {
  font-family: 'IBM Plex Sans', sans-serif; font-size: 11px; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; color: var(--ink);
  margin-bottom: 16px;
}
.foot-menu { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.foot-menu a {
  color: var(--muted); font-size: 13.5px; text-decoration: none;
  overflow-wrap: anywhere;                        /* URL lunghi non escono dal box */
  transition: color .18s;
}
.foot-menu a:hover { color: var(--accent); }
.foot-iso {
  margin-top: 18px; font-family: 'IBM Plex Mono', Consolas, monospace;
  font-size: 10.5px; letter-spacing: .06em; color: var(--muted2); line-height: 1.7;
}
.foot-below {
  border-top: 1px solid var(--line);
  max-width: 1280px; margin: 0 auto; padding: 20px 6vw 26px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px 28px; flex-wrap: wrap;                /* su schermi stretti va a capo */
  color: var(--muted); font-size: 12px;
}
.foot-below p { margin: 0; }

@media (max-width: 900px) {
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 40px 32px; padding-top: 52px; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .foot-grid { grid-template-columns: 1fr; }
  .foot-below { justify-content: flex-start; }
}

/* stato iniziale reveal (il JS anima verso lo stato finale) */
.reveal { opacity: 0; transform: translateY(34px); }
.no-js .reveal, .reduced .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .scroll-cue span { animation: none; }
}