/* ============================================================
   RiBiFlex - Site layout (header, hero, sezioni, footer)
   Usa tokens.css + components.css
   ============================================================ */

.site { min-height: 100vh; display: flex; flex-direction: column; background: var(--bg); }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--space-8); width: 100%; }
.container-wide { max-width: var(--maxw-wide); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom: var(--hairline) solid var(--border);
}
.site-header .nav-inner {
  max-width: var(--maxw-wide); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-6);
  padding: var(--space-4) var(--space-8);
}
.site-wm { width: 118px; }
.site-wm svg { width: 100%; height: auto; display: block; }
.use-ribi { color: var(--text); }
.use-flex { color: var(--accent); }
[data-theme="light"] .use-flex { color: var(--accent-strong); }
.header-actions { display: flex; align-items: center; gap: var(--space-3); }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: var(--r-md);
  border: var(--hairline) solid var(--border-strong); background: var(--surface);
  color: var(--text); cursor: pointer; transition: all var(--dur-fast) var(--ease);
}
.icon-btn:hover { border-color: var(--text-3); }

/* Language select */
.lang-select {
  height: 36px; border-radius: var(--r-md);
  border: var(--hairline) solid var(--border-strong); background: var(--surface);
  color: var(--text); cursor: pointer; padding: 0 var(--space-3);
  font-family: var(--font-mono); font-size: 11px; font-weight: var(--fw-medium);
  letter-spacing: 0.06em; text-transform: uppercase;
  appearance: none; -webkit-appearance: none;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
  outline: none;
}
.lang-select:hover { border-color: var(--text-3); }
.lang-select:focus { border-color: var(--accent); }
.site-header:not(.scrolled) .lang-select {
  border-color: rgba(247,247,245,0.18); background: rgba(247,247,245,0.06);
  color: var(--brand-ground);
}
.site-header:not(.scrolled) .lang-select option { background: var(--invert-bg); color: var(--brand-ground); }
.icon-btn .moon { display: none; }
[data-theme="dark"] .icon-btn .sun { display: none; }
[data-theme="dark"] .icon-btn .moon { display: block; }

/* ---------- Section rhythm ---------- */
.section { padding: var(--space-24) 0; }
.section-sm { padding: var(--space-16) 0; }
.section + .section { padding-top: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-4); }
.section-head { max-width: 60ch; margin-bottom: var(--space-12); }
.section-head .t-h1 { margin-bottom: var(--space-4); }

/* ---------- Hero ---------- */
.hero {
  background: var(--invert-bg); color: var(--invert-text);
  position: relative; overflow: hidden;
  border-bottom: var(--hairline) solid var(--invert-border);
  min-height: 600px; display: flex; align-items: center;
}
.hero .container { position: relative; z-index: 2; padding-top: var(--space-16); padding-bottom: var(--space-16); }
.hero .use-ribi { color: var(--invert-text); }
.hero .use-flex { color: var(--accent); }
.hero h1 { color: var(--invert-text); margin: var(--space-6) 0; }
.hero p { color: var(--invert-text-2); max-width: 54ch; }
.hero .tick { color: var(--accent); font-family: 'Outfit', sans-serif; font-weight: var(--fw-medium); }
.hero .flow-node { color: var(--accent); font-family: 'Outfit', sans-serif; font-size: 13px; }
.hero-grid-bg {
  position: absolute; inset: 0; z-index: 1; opacity: 0.22;
  background-image:
    linear-gradient(var(--border-strong) var(--hairline), transparent var(--hairline)),
    linear-gradient(90deg, var(--border-strong) var(--hairline), transparent var(--hairline));
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 70% 30%, #000 0%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 80% at 70% 30%, #000 0%, transparent 75%);
}
[data-theme="dark"] .hero-grid-bg { opacity: 0.38; }

/* KPI band */
.kpi-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: var(--hairline) solid var(--border); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); }
.kpi-band > div { padding: var(--space-6); border-right: var(--hairline) solid var(--border); }
.kpi-band > div:last-child { border-right: none; }

/* feature grid */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); counter-reset: step; }
.step { position: relative; padding: var(--space-6); }
.step .step-num { font-family: var(--font-mono); font-size: 11px; color: var(--accent-strong); margin-bottom: var(--space-3); display: block; }

/* split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }

/* partner logo grid */
.logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.logo-cell {
  aspect-ratio: 3 / 2; border: var(--hairline) solid var(--border); border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center; background: var(--surface);
  color: var(--text-3); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  transition: all var(--dur) var(--ease);
}
.logo-cell:hover { border-color: var(--border-strong); color: var(--text-2); }

/* news feed */
.feed { display: flex; flex-direction: column; }
.feed-item {
  display: grid; grid-template-columns: 140px 1fr auto; gap: var(--space-6); align-items: start;
  padding: var(--space-6) 0; border-bottom: var(--hairline) solid var(--border);
  transition: background var(--dur-fast) var(--ease);
}
.feed-item:hover { background: var(--surface-2); }
.feed-date { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); letter-spacing: 0.04em; }
.feed-body h3 { margin-bottom: var(--space-2); }
.feed-body p { color: var(--text-2); font-size: 14px; max-width: 60ch; }
.feed-tags { display: flex; gap: var(--space-2); margin-top: var(--space-3); flex-wrap: wrap; }

/* footer */
.site-footer { margin-top: auto; background: var(--invert-bg); color: var(--invert-text); padding: var(--space-16) 0 var(--space-8); border-top: var(--hairline) solid var(--invert-border); }
.site-footer .use-ribi { color: var(--invert-text); }
.site-footer .use-flex { color: var(--accent); }
.site-footer a { color: rgba(247,247,245,0.66); font-size: 14px; }
.site-footer a:hover { color: var(--accent-hi); }
.footer-cols { display: grid; grid-template-columns: 1.6fr 1fr 1.2fr; gap: var(--space-8); padding-bottom: var(--space-12); }
.footer-col h5 { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(247,247,245,0.5); margin-bottom: var(--space-4); }
.footer-col .rb-stack { gap: var(--space-3); }
.footer-bottom { display: flex; justify-content: space-between; gap: var(--space-4); padding-top: var(--space-6); border-top: 0.5px solid rgba(247,247,245,0.14); flex-wrap: wrap; }
.footer-bottom span { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(247,247,245,0.5); }

/* Hamburger button */
.menu-btn {
  display: none;
  background: none; border: none; padding: 6px;
  cursor: pointer; color: inherit; line-height: 0;
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed; inset: 0; z-index: 9990;
  pointer-events: none;
}
.mobile-nav.open { pointer-events: all; }
.mobile-nav-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0; transition: opacity 0.25s var(--ease);
}
.mobile-nav.open .mobile-nav-backdrop { opacity: 1; }
.mobile-nav-panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(280px, 85vw);
  background: var(--surface);
  border-left: var(--hairline) solid var(--border);
  padding: var(--space-8) var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-2);
  transform: translateX(100%);
  transition: transform 0.28s var(--ease-out);
}
.mobile-nav.open .mobile-nav-panel { transform: translateX(0); }
.mobile-nav-close {
  align-self: flex-end; background: none; border: none;
  padding: 4px; cursor: pointer; color: var(--text-2); line-height: 0; margin-bottom: var(--space-4);
}
.mobile-nav-link {
  display: block; padding: var(--space-4) var(--space-3);
  font-size: 15px; font-weight: var(--fw-medium); color: var(--text);
  text-decoration: none; border-radius: var(--r-md);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.mobile-nav-link:hover { background: var(--surface-inset); }
.mobile-nav-link.active { color: var(--accent); }
.mobile-nav-divider { height: var(--hairline); background: var(--border); margin: var(--space-3) 0; }

@media (max-width: 880px) {
  .nav-links.site-links { display: none; }
  .menu-btn { display: flex; align-items: center; justify-content: center; }
  .mobile-nav { display: block; }
  .features, .steps, .kpi-band, .logo-grid, .footer-cols { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: var(--space-8); }
  .feed-item { grid-template-columns: 1fr; gap: var(--space-3); }
  .section { padding: var(--space-16) 0; }
}
@media (max-width: 560px) {
  .features, .steps, .kpi-band, .logo-grid, .footer-cols { grid-template-columns: 1fr; }
  .container { padding: 0 var(--space-5); }
}

/* ===== Sezione News nascosta (temporaneo) ===== */
a[href="news.html"],
a[href="blog.html"],
a[href="News.html"] { display: none !important; }