/* Base comune ai mockup: palette "Grafite + blu cobalto", caratteri Geist / Geist Mono */
:root {
  --bg: #0f1114;
  --fg: #e8eaee;
  --muted: #9198a3;
  --line: #23272e;
  --surface: #15181c;
  --accent: #6f8cff;
  --on-accent: #0b0d10;
  --glow: rgba(111, 140, 255, 0.16);
  --sans: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --gutter: max(20px, env(safe-area-inset-left, 0px));
  --maxw: 1180px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f6f7f9;
  --fg: #14161a;
  --muted: #5b616b;
  --line: #dde0e5;
  --surface: #ffffff;
  --accent: #2f4fd8;
  --on-accent: #ffffff;
  --glow: rgba(47, 79, 216, 0.12);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color .4s var(--ease), color .4s var(--ease);
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--fg); color: var(--bg); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--line); }
.site-header .container { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -.01em; }
.brand svg { width: 32px; height: 32px; flex: none; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { text-decoration: none; font-size: 14px; color: var(--muted); transition: color .2s; }
.nav a:hover, .nav a[aria-current] { color: var(--fg); }
.tools { display: flex; align-items: center; gap: 8px; }
.pill-btn {
  font: inherit; font-size: 12px; font-family: var(--mono);
  background: transparent; color: var(--fg);
  border: 1px solid var(--line); border-radius: 999px;
  height: 32px; min-width: 32px; padding: 0 10px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; white-space: nowrap;
  transition: border-color .2s;
}
.pill-btn:hover { border-color: var(--accent); }
[data-theme-toggle] { font-size: 15px; }
.lang b { color: var(--fg); font-weight: 500; }
.lang span { color: var(--muted); }
@media (max-width: 760px) {
  .nav { display: none; }
  .tools { margin-left: auto; }
}

/* Micro-interazioni: link con sottolineatura che scorre */
.u-link {
  text-decoration: none;
  background: linear-gradient(var(--accent), var(--accent)) left bottom / 0% 1px no-repeat;
  padding-bottom: 2px;
  transition: background-size .35s var(--ease), color .2s;
}
.u-link:hover, .u-link:focus-visible { background-size: 100% 1px; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: inherit; font-size: 15px; font-weight: 500;
  padding: 13px 22px; border-radius: 999px; text-decoration: none; cursor: pointer;
  border: 1px solid var(--fg); background: var(--fg); color: var(--bg);
  transition: transform .25s var(--ease), background-color .25s, color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn .arr { transition: transform .25s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }
.btn.ghost { background: transparent; color: var(--fg); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--fg); }

.status {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 12px; color: var(--muted); white-space: nowrap;
}
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.status.live::before { background: var(--accent); box-shadow: 0 0 0 4px var(--glow); }

/* Animazione 1: testo che appare parola per parola */
.split .w { display: inline-block; }
.js .split .w { opacity: 0; transform: translateY(.45em); filter: blur(6px); }
.js .split.in .w {
  opacity: 1; transform: none; filter: none;
  transition: opacity .8s var(--ease), transform .8s var(--ease), filter .8s var(--ease);
  transition-delay: calc(var(--i) * 55ms + 120ms);
}

/* Animazione 3: ingressi allo scroll */
.js .reveal { opacity: 0; transform: translateY(28px); }
.js .reveal.in {
  opacity: 1; transform: none;
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}

/* Animazione 5: transizione tra pagine (tendina) */
.curtain {
  position: fixed; inset: 0; z-index: 90; pointer-events: none;
  background: var(--accent);
  transform: translateY(100%);
  visibility: hidden;
}
.curtain.cover, .curtain.leave, .curtain.start { visibility: visible; }
.curtain.cover { transform: translateY(0); transition: transform .45s cubic-bezier(.7, 0, .2, 1); }
.curtain.leave { transform: translateY(-100%); transition: transform .55s cubic-bezier(.7, 0, .2, 1); }
.curtain.start { transform: translateY(0); transition: none; }

/* Foto segnaposto */
.photo-ph {
  display: grid; place-items: center; text-align: center;
  background:
    repeating-linear-gradient(135deg, transparent 0 10px, color-mix(in srgb, var(--fg) 5%, transparent) 10px 11px),
    var(--surface);
  border: 1px solid var(--line);
  color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
}

.mock-note {
  position: fixed; left: max(12px, env(safe-area-inset-left, 0px)); bottom: max(12px, env(safe-area-inset-bottom, 0px)); z-index: 50;
  font-family: var(--mono); font-size: 11px; color: var(--muted);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px;
  text-decoration: none;
}
.mock-note:hover { color: var(--fg); }

footer.site-footer { border-top: 1px solid var(--line); padding-block: 28px 80px; color: var(--muted); font-size: 13px; }
footer.site-footer .container { display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .split .w, .js .reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
  .curtain { display: none; }
}