/* ═══ CO—ENFER · pagina B2B (demo accesso/registrazione) ═══ */

.b2b-page { min-height: 100svh; overflow-x: clip; }

.nav--b2b { mix-blend-mode: normal; color: var(--osso); }
.nav--b2b .nav-brand {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  transition: opacity 200ms ease;
}
@media (hover: hover) { .nav--b2b .nav-brand:hover { opacity: 0.65; } }
.b2b-badge {
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--cenere);
  border: 1px solid rgba(237,229,216,0.2);
  border-radius: 999px;
  padding: 8px 14px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  min-height: 100svh;
}

/* ── Colonna racconto ── */
.lato {
  position: relative;
  background: var(--menu-bg);
  color: var(--osso);
  display: flex; flex-direction: column; justify-content: center;
  overflow: clip;
}
.lato-inner { padding: 120px var(--gutter) 80px; }
.lato .label { display: block; color: rgba(20,10,6,0.75); margin-bottom: 26px; }
.lato h1 {
  font-family: var(--serif);
  font-variation-settings: "opsz" 144;
  font-weight: 320;
  font-size: clamp(2.6rem, 4.6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
}
.lato h1 em { color: var(--nero); }
.lato-sub {
  margin-top: 22px;
  max-width: 44ch;
  color: rgba(237,229,216,0.92);
  font-size: 0.98rem;
  text-wrap: pretty;
}
.lato-list { margin-top: clamp(26px, 5vh, 50px); }
.lato-list li {
  display: flex; align-items: baseline; gap: 16px;
  border-top: 1px solid rgba(20,10,6,0.25);
  padding: 13px 0;
  font-size: 0.92rem;
}
.lato-piede {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
  padding: 16px var(--gutter);
  border-top: 1px solid rgba(20,10,6,0.25);
}
.lato-piede p {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  white-space: nowrap;
}
.lato-piede p:first-child { color: rgba(20,10,6,0.75); }
.lato-piede p:last-child { color: rgba(237,229,216,0.9); }

/* ── Colonna modulo ── */
.modulo {
  display: grid; place-items: center;
  padding: 110px var(--gutter) 60px;
}
.modulo-card {
  width: min(100%, 520px);
  background: var(--carbone);
  border: 1px solid rgba(237,229,216,0.12);
  border-radius: 20px;
  padding: clamp(26px, 4vw, 44px);
}

.tabs {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr;
  border: 1px solid rgba(237,229,216,0.16);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 30px;
}
.tab {
  position: relative; z-index: 1;
  padding: 11px 10px;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cenere);
  border-radius: 999px;
  transition: color 250ms ease;
}
.tab.is-active { color: var(--nero); }
.tab-slider {
  position: absolute; top: 4px; bottom: 4px; left: 4px;
  width: calc(50% - 4px);
  background: var(--osso);
  border-radius: 999px;
  transition: transform 420ms var(--ease-out);
}
.tabs[data-active="accesso"] .tab-slider { transform: translateX(100%); }

.form { display: none; }
.form.is-active { display: block; animation: form-entra 420ms var(--ease-out); }
@keyframes form-entra { from { opacity: 0; transform: translateY(12px); } }
.form-intro {
  font-size: 0.88rem;
  color: var(--cenere);
  margin-bottom: 24px;
  text-wrap: pretty;
}
.form-intro strong { color: var(--osso); font-weight: 500; }

.campo { margin-bottom: 16px; }
.campo-riga { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.campo label {
  display: block;
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--cenere);
  margin-bottom: 7px;
}
.campo input, .campo select {
  width: 100%;
  background: var(--nero);
  border: 1px solid rgba(237,229,216,0.16);
  border-radius: 10px;
  color: var(--osso);
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 13px 14px;
  transition: border-color 200ms ease, background 200ms ease;
  appearance: none;
}
.campo select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2393887B' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.campo input::placeholder { color: rgba(147,136,123,0.45); }
.campo input:focus, .campo select:focus {
  outline: none;
  border-color: var(--brace);
  background-color: #12100C;
}
.campo select:invalid { color: rgba(147,136,123,0.7); }
.errore {
  display: none;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--brace-viva);
  margin-top: 6px;
}
.campo.ko input, .campo.ko select { border-color: var(--brace); }
.campo.ko .errore { display: block; }

.form-btn { width: 100%; margin-top: 10px; }
.btn-dots { display: none; gap: 5px; }
.btn-dots i {
  width: 5px; height: 5px; border-radius: 50%;
  background: currentColor;
  animation: dot 0.9s ease-in-out infinite;
}
.btn-dots i:nth-child(2) { animation-delay: 0.15s; }
.btn-dots i:nth-child(3) { animation-delay: 0.3s; }
@keyframes dot { 0%, 100% { opacity: 0.25; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-3px); } }
.form-btn.is-loading .btn-label { display: none; }
.form-btn.is-loading .btn-dots { display: inline-flex; }
.form-btn.is-loading { pointer-events: none; }

.form-nota {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--cenere);
  text-align: center;
}

/* ── Esito ── */
.esito { display: none; text-align: center; padding: 26px 0 10px; }
.esito.is-active { display: block; }
.esito-segno {
  width: 64px; height: 64px;
  margin: 0 auto 22px;
  color: var(--brace-viva);
}
.esito-segno circle { stroke-dasharray: 189; stroke-dashoffset: 189; }
.esito-segno path { stroke-dasharray: 40; stroke-dashoffset: 40; }
.esito.is-active .esito-segno circle { animation: traccia 900ms var(--ease-out) forwards; }
.esito.is-active .esito-segno path { animation: traccia 500ms var(--ease-out) 550ms forwards; }
@keyframes traccia { to { stroke-dashoffset: 0; } }
.esito-title {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.9rem;
  margin-bottom: 12px;
}
.esito-text { color: var(--cenere); font-size: 0.92rem; margin-bottom: 26px; }
.esito-reset { color: var(--osso); }

/* Ingresso in puro CSS: robusto anche senza JS */
.b2b-page [data-in] {
  opacity: 0;
  transform: translateY(26px);
  animation: b2b-entra 0.9s var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 90ms + 180ms);
}
@keyframes b2b-entra {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .b2b-page [data-in] { animation: none; opacity: 1; transform: none; }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .b2b-page { overflow: auto; }
  .split { grid-template-columns: 1fr; }
  .lato { min-height: 46svh; }
  .lato-inner { padding: 110px var(--gutter) 70px; }
  .modulo { padding-top: 40px; }
}
@media (max-width: 640px) {
  .campo-riga { grid-template-columns: 1fr; gap: 0; }
  .b2b-badge { display: none; }
}