/* ============================================================
   Italiano Full Immersion — Global app shell
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 { margin: 0; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-family: var(--font-serif); font-weight: 900; font-size: clamp(1.75rem, 4.5vw, 2.5rem); }
h2 { font-family: var(--font-serif); font-weight: 700; font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: 1.15rem; font-weight: 700; }
p  { margin: 0 0 .5em; }

/* --- Topbar --- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border-soft);
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto;
  padding: 10px 20px;
  display: flex; align-items: center; gap: 16px;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 12px; line-height: 0; }
.brand-logo {
  height: 44px;
  max-width: 240px;
  width: auto;
  display: block;
  object-fit: contain;
  transition: opacity .15s var(--ease);
}
.topbar-right { display: flex; align-items: center; gap: 8px; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-weight: 600; font-size: .95rem;
  border: 1px solid transparent;
  background: var(--bg-elev);
  color: var(--text);
  transition: transform .15s var(--ease), background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
  text-align: center;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--it-red-deep));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 16px -6px rgba(200,16,46,.55);
}
.btn-primary:hover { box-shadow: 0 10px 22px -8px rgba(200,16,46,.6); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-outline { background: transparent; border-color: var(--border); }
.btn-outline:hover { background: var(--bg-soft); border-color: var(--text-muted); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 7px 12px; font-size: .85rem; }
.btn-lg { padding: 14px 22px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: .55; cursor: not-allowed; transform: none; box-shadow: none;
}

.icon-btn {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: transparent; color: var(--text-soft);
  border: 1px solid transparent;
}
.icon-btn:hover { background: var(--bg-soft); color: var(--text); }
.theme-toggle .i-moon { display: none; }
[data-theme="dark"] .theme-toggle .i-sun { display: none; }
[data-theme="dark"] .theme-toggle .i-moon { display: block; }

/* --- Form inputs --- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: .85rem; color: var(--text-soft); font-weight: 600; }
.field input, .field select, .field textarea {
  font: inherit; color: var(--text);
  padding: 12px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field .hint { font-size: .8rem; color: var(--text-muted); }

/* --- Card --- */
.card {
  background: var(--bg-elev);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow), var(--card-glow);
  border: 1px solid var(--border-soft);
}
.card h2, .card h3 { margin-bottom: 12px; }

/* --- Pills --- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .75rem; font-weight: 600;
  background: var(--bg-soft); color: var(--text-soft);
  border: 1px solid var(--border-soft);
  white-space: nowrap;
}
.pill-success { background: rgba(0,140,69,.10); color: var(--success); border-color: rgba(0,140,69,.25); }
[data-theme="dark"] .pill-success { background: rgba(46,194,126,.12); color: #5fe0a9; border-color: rgba(46,194,126,.3); }
.pill-warn { background: var(--warn-soft); color: var(--warn); border-color: rgba(196,123,0,.25); }
[data-theme="dark"] .pill-warn { background: rgba(224,163,52,.15); color: #f0c25e; border-color: rgba(224,163,52,.3); }
.pill-muted { background: var(--bg-strong); color: var(--text-muted); }
.pill-accent { background: var(--accent-soft); color: var(--accent); border-color: rgba(200,16,46,.25); }
[data-theme="dark"] .pill-accent { background: rgba(230,58,82,.15); color: #ff7a8c; border-color: rgba(230,58,82,.3); }

/* --- Toast / alert --- */
.alert {
  padding: 12px 14px; border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  font-size: .92rem;
  display: flex; align-items: flex-start; gap: 10px;
}
.alert-error  { background: var(--accent-soft); border-color: rgba(200,16,46,.3); color: var(--accent); }
.alert-success{ background: rgba(0,140,69,.10); border-color: rgba(0,140,69,.3); color: var(--success); }
.alert-info   { background: var(--info-soft); border-color: rgba(29,109,179,.3); color: var(--info); }
[data-theme="dark"] .alert-success { background: rgba(46,194,126,.15); color: #5fe0a9; }
[data-theme="dark"] .alert-info { background: rgba(74,163,255,.15); color: #8cc1ff; }

/* --- Footer --- */
.footer {
  margin-top: 60px; padding: 28px 20px 20px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-soft);
  background: var(--bg-soft);
  font-size: .85rem;
}
.footer .footer-company {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 24px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-soft);
}
.footer-company-name {
  grid-column: 1 / -1;
  font-weight: 700;
  color: var(--text);
  font-size: .95rem;
  letter-spacing: .01em;
}
.footer-company-addr { color: var(--text-soft); }
.footer-company-contact {
  display: flex; align-items: baseline; gap: 8px;
  color: var(--text-soft);
}
.footer-company-contact span { color: var(--text-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }
.footer-company-contact a {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: border-color .2s var(--ease);
}
.footer-company-contact a:hover { border-bottom-color: var(--accent); }
.footer .footer-meta {
  max-width: 1180px;
  margin: 12px auto 0;
  display: flex; gap: 6px; align-items: center; justify-content: center;
  font-size: .78rem;
}
.footer .dot { opacity: .5; }
@media (max-width: 640px) {
  .footer .footer-company {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .footer-company-contact { justify-content: flex-start; }
}

/* --- Utility --- */
.row { display: flex; flex-wrap: wrap; gap: 16px; }
.row.between { justify-content: space-between; align-items: center; }
.col { display: flex; flex-direction: column; gap: 12px; }
.grid { display: grid; gap: 18px; }
.text-soft { color: var(--text-soft); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warn { color: var(--warn); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.hidden { display: none !important; }

/* --- Container --- */
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; margin: 0 auto; }

/* --- Selection --- */
::selection { background: var(--accent); color: #fff; }

/* --- Scrollbar (subtle) --- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--bg-strong); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* --- Mobile tweaks --- */
@media (max-width: 640px) {
  .topbar-inner { padding: 10px 14px; gap: 8px; }
  .brand-logo { height: 36px; max-width: 180px; }
  .container { padding: 0 14px; }
}