/* ==========================================================================
   Hanny AI — sito vetrina
   Design system: tema Notte. Token da brand book (tokens.json).
   ========================================================================== */

/* ---- Font (self-hosted, Instrument Sans, licenza OFL) ------------------- */
@font-face {
  font-family: "Instrument Sans";
  src: url("../fonts/InstrumentSans-var.woff2") format("woff2");
  font-weight: 400 500;
  font-style: normal;
  font-display: swap;
}

/* ---- Token -------------------------------------------------------------- */
:root {
  /* colore */
  --void: #0B0F14;
  --deep-space: #121A22;
  --nebula: #1E2A35;
  --starlight: #E8EEF2;
  --dust: #8A99A6;
  --voorwerp: #3CE0B0;
  --voorwerp-ink: #3CE0B0;
  --glow: #1B7F6B;
  --signal: #F5B84C;
  --on-accent: #0B0F14;

  /* spazio */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 48px;
  --space-6: 96px;

  /* forme */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --glow-voorwerp: 0 0 48px rgba(60, 224, 176, 0.25);

  /* tipografia */
  --font-sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --container: 1120px;
  color-scheme: dark;
}

/* ---- Base --------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--void);
  color: var(--starlight);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 26px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ul, blockquote { margin: 0; padding: 0; }
ul { list-style: none; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--voorwerp);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--space-4));
  margin-inline: auto;
  padding-inline: max(var(--space-4), env(safe-area-inset-left, 0px));
  padding-right: max(var(--space-4), env(safe-area-inset-right, 0px));
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -100px;
  z-index: 10;
  padding: var(--space-2) var(--space-3);
  background: var(--starlight);
  color: var(--void);
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 22px;
  text-decoration: none;
}
.skip-link:focus { top: var(--space-3); }

/* ---- Pulsante principale ------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 28px;
  background: var(--voorwerp);
  color: var(--on-accent);
  font-family: inherit;
  font-size: 16px;
  line-height: 24px;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-pill);
  transition: box-shadow 0.2s ease;
}
.btn:hover { box-shadow: var(--glow-voorwerp); }

/* Secondario: bordo dust, per chi non è il pubblico principale. */
.btn--outline {
  background: transparent;
  color: var(--starlight);
  box-shadow: inset 0 0 0 1px var(--dust);
}
.btn--outline:hover { box-shadow: inset 0 0 0 1px var(--starlight); }

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-4);
  margin-top: var(--space-5);
}

.cta-note {
  font-size: 14px;
  line-height: 22px;
  color: var(--dust);
}

/* ---- Header ------------------------------------------------------------- */
.site-header { padding-top: env(safe-area-inset-top, 0px); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 80px;
}

.site-header__brand { display: block; border-radius: var(--radius-sm); }

.site-header__tools {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav { display: flex; align-items: center; gap: var(--space-4); }

/* Link di testo: sottolineato dust, verde al passaggio. */
.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  line-height: 22px;
  color: var(--starlight);
  text-decoration: underline;
  text-decoration-color: var(--dust);
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
  -webkit-tap-highlight-color: transparent;
}
.text-link:hover { text-decoration-color: var(--voorwerp); }

.lang { display: flex; gap: var(--space-1); }

.lang__btn {
  min-width: 36px;
  min-height: 36px;
  padding: 0 var(--space-2);
  background: none;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--dust);
  font-family: inherit;
  font-size: 12px;
  line-height: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
}
.lang__btn:hover { color: var(--starlight); }
.lang__btn[aria-pressed="true"] { color: var(--starlight); background: var(--deep-space); }

/* ---- Hero --------------------------------------------------------------- */
.hero {
  position: relative;
  overflow-x: clip;
  isolation: isolate;
  min-height: min(640px, 78vh);
  display: flex;
  align-items: flex-end;
  padding: var(--space-6) 0;
}

/* L'alone: la nube verde che compare, una volta sola, al caricamento. */
.hero__glow {
  position: absolute;
  z-index: -1;
  right: -6%;
  top: 50%;
  width: min(880px, 110vw);
  height: min(880px, 110vw);
  margin-top: calc(min(880px, 110vw) / -2);
  border-radius: 50%;
  background: radial-gradient(
    closest-side,
    rgba(27, 127, 107, 0.55) 0%,
    rgba(27, 127, 107, 0.24) 45%,
    rgba(27, 127, 107, 0.07) 75%,
    rgba(27, 127, 107, 0) 100%
  );
  pointer-events: none;
  animation: discover 2.4s cubic-bezier(0.2, 0.6, 0.2, 1) 0.2s both;
}

@keyframes discover {
  from { opacity: 0; transform: scale(0.6); }
  to   { opacity: 1; transform: scale(1); }
}

.hero__inner { position: relative; }

.hero__title {
  max-width: 10ch;
  font-size: clamp(48px, 9vw, 64px);
  line-height: 1.0625;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.hero__lead {
  max-width: 34ch;
  margin: var(--space-4) 0 var(--space-5);
  color: var(--dust);
}

/* ---- Sezioni ------------------------------------------------------------ */
.section { padding: var(--space-6) 0; }

/* La riga separa i blocchi di contenuto: usa nebula, solo decorativa. */
.section--band {
  background: var(--deep-space);
  border-top: 1px solid var(--nebula);
  border-bottom: 1px solid var(--nebula);
}

.split--follow { margin-top: var(--space-6); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--space-5);
  align-items: start;
}

.split__title { max-width: 22ch; }
.split__title .prose { margin-top: var(--space-3); }

h2 {
  font-size: 28px;
  line-height: 34px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 20px;
  line-height: 28px;
  font-weight: 500;
}

h4 { margin: 0; font-weight: 500; }

.split__subtitle {
  font-size: 28px;
  line-height: 34px;
  letter-spacing: -0.01em;
}

.note {
  margin-top: var(--space-3);
  font-size: 14px;
  line-height: 22px;
  color: var(--dust);
}

.prose { max-width: 56ch; color: var(--dust); }

/* ---- Cosa fa Hanny: righe ---------------------------------------------- */
.rows { border-top: 1px solid var(--nebula); }

.rows__item {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--nebula);
}

.rows__text { color: var(--dust); }

/* ---- Memo --------------------------------------------------------------- */
.memo { display: grid; gap: var(--space-3); }

.memo__card {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--deep-space);
  border: 1px solid var(--nebula);
  border-radius: var(--radius-md);
}

.memo__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.memo__name { font-size: 16px; line-height: 24px; }

.memo__meta {
  font-size: 14px;
  line-height: 22px;
  color: var(--dust);
}

.memo__text { max-width: 52ch; }

.tag {
  flex: none;
  padding: 2px var(--space-2);
  background: var(--signal);
  color: var(--on-accent);
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* ---- Storia del nome ---------------------------------------------------- */
.quote {
  margin-top: var(--space-6);
  max-width: 24em;
  padding-left: var(--space-4);
  border-left: 1px solid var(--voorwerp);
  font-size: clamp(28px, 4.4vw, 40px);
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: -0.015em;
}

/* ---- Contatti ----------------------------------------------------------- */
.contact {
  padding: var(--space-6) 0;
  background: var(--deep-space);
  border-top: 1px solid var(--nebula);
}

.contact__inner { display: grid; gap: var(--space-4); justify-items: start; }

.contact__title {
  font-size: clamp(28px, 4.4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.mail-link {
  color: var(--voorwerp-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.mail-link:hover { border-bottom-color: var(--voorwerp-ink); }
.mail-link--large {
  display: inline-block;
  padding: var(--space-2) 0;
  font-size: clamp(24px, 6vw, 28px);
  line-height: 34px;
  font-weight: 500;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

/* ---- Footer ------------------------------------------------------------- */
.site-footer {
  padding: var(--space-5) 0 calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  background: var(--void);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-4);
}

.site-footer__text {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  font-size: 14px;
  line-height: 22px;
  color: var(--dust);
}
.site-footer__text a { display: inline-flex; align-items: center; min-height: 44px; color: var(--voorwerp-ink); text-decoration: none; }
.site-footer__text a:hover { text-decoration: underline; }

.site-footer__sep { width: 1px; height: 14px; background: var(--nebula); }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 860px) {
  .section,
  .contact { padding: var(--space-5) 0; }
  .split--follow { margin-top: var(--space-5); }

  .hero { min-height: 0; padding: var(--space-6) 0 var(--space-5); }
  .hero__glow { right: -45%; width: 130vw; height: 130vw; margin-top: -65vw; }

  .split { grid-template-columns: minmax(0, 1fr); gap: var(--space-4); }
  .split__title { max-width: none; }

  .rows__item { grid-template-columns: minmax(0, 1fr); gap: var(--space-2); }
  .quote { margin-top: var(--space-5); }
  .cta-row { margin-top: var(--space-4); }
}

/* Telefono: logo e lingua in alto, menu su una seconda riga */
@media (max-width: 640px) {
  .site-header__inner { flex-wrap: wrap; min-height: 0; padding-top: var(--space-2); row-gap: 0; }
  .site-header__tools { display: contents; }
  .lang { order: 2; }
  .lang__btn { min-width: 44px; min-height: 44px; }
  .site-nav {
    order: 3;
    flex-basis: 100%;
    gap: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--nebula);
    margin-inline: 0;
  }
  .hero { padding-top: var(--space-5); }
}

@media (max-width: 520px) {
  .actions,
  .cta-row { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; justify-content: center; }
  .actions .text-link { justify-content: flex-start; }
  .cta-note { text-align: left; }
}

/* Telefono in orizzontale: l'hero non deve riempire lo schermo */
@media (max-height: 480px) and (orientation: landscape) {
  .hero { min-height: 0; padding: var(--space-5) 0; }
}

/* ---- Movimento ridotto -------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__glow { animation: none; }
  .btn { transition: none; }
}