/* Form di servizio (prenotazione e contatto). Forma da reference era-residence.com (SOTM 2026):
 * righe a registro con etichetta maiuscola piccola a sinistra, filetto sotto il campo che a fuoco
 * diventa pieno, titolo display a sinistra, consenso e bottone in basso. Valori in fonti-b2.json.
 * Colori e font solo dai token del template (--bg/--ink/... dell'assemblatore, --z-* come riserva). */
.zs-form-sec{
  --zs-bg:var(--bg,var(--z-bg,var(--b-bg)));--zs-ink:var(--ink,var(--z-ink,color-mix(in srgb,var(--b-primary) 81%,var(--b-text))));--zs-muted:var(--muted,var(--z-muted,color-mix(in srgb,var(--b-bg) 40%,var(--b-text))));
  --zs-accent:var(--accent,var(--z-accent,color-mix(in srgb,var(--b-primary) 81%,var(--b-bg))));--zs-on-accent:var(--zs-accent-ink,var(--z-accent-ink,var(--b-bg)));
  --zs-line:color-mix(in srgb,var(--zs-ink) 18%,transparent);--zs-card:var(--card,var(--z-bg2,var(--b-bg)));
  --zs-display:var(--font-display,var(--z-font-display,Georgia,serif));--zs-body:var(--font-body,var(--z-font-body,system-ui,sans-serif));
  --zs-pill:var(--r-pill,999px);--zs-wrap:var(--wrap,var(--z-max,1200px));
  /* curva e durata della reference (modale era: 800ms cubic-bezier(.25,1,.5,1)); zb-anim le può sovrascrivere */
  --zs-ease:var(--zb-anim-ease,cubic-bezier(.25,1,.5,1));--zs-dur:.45s;
  --zs-err:color-mix(in srgb,var(--zs-accent) 82%,var(--zs-ink));
  background:var(--zs-bg);color:var(--zs-ink);font-family: var(--b-font-display);padding: clamp(3.5rem,8vw,7.5rem) clamp(1.1rem,4vw,3rem)}
.zs-form-sec h2,.zs-form-sec h3{border:0;padding: 0;text-transform:none;font-variant-caps:normal;text-shadow: none;background:none}
.zs-form-sec *,.zs-form-sec *::before,.zs-form-sec *::after{box-sizing:border-box}
.zs-form-wrap{max-width:var(--zs-wrap);margin: 0 auto;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap: clamp(2rem,6vw,6rem);align-items:start}
.zs-form-intro h2{font-family: var(--b-font-display);font-weight:400;font-size:clamp(2.6rem,6.2vw,5.6rem);line-height:.95;letter-spacing:-.02em;margin: 0 0 1.4rem;color:var(--zs-ink)}
.zs-form-intro p{margin: 0;max-width:24em;font-size:.82rem;line-height:1.45;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:var(--zs-ink)}
.zs-form-intro .zs-alt{margin-top: 1.4rem;text-transform:none;letter-spacing:0;font-weight:400;font-size:.95rem;color:var(--zs-muted)}
.zs-form-intro .zs-alt a{color:inherit;text-underline-offset:3px}
.zs-form{margin: 0;position:relative}
.zs-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));column-gap: 1.4rem}
.zs-field{grid-column:span 6;position:relative;display:grid;grid-template-columns:8.5em minmax(0,1fr);align-items:center;column-gap: 1rem;border-bottom:1px solid var(--zs-line);min-height:3.1rem;transition:border-color var(--zs-dur) var(--zs-ease)}
.zs-field--third{grid-column:span 2;grid-template-columns:1fr;align-content:start}
.zs-field--third .zs-label{padding-top: .7rem}
.zs-field--area{align-items:start}
.zs-field--area .zs-label{padding-top: .95rem}
/* filetto pieno che si allunga da sinistra al fuoco (scaleX), come la riga della reference che diventa piena */
.zs-field::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--zs-ink);transform:scaleX(0);transform-origin:left;transition:transform var(--zs-dur) var(--zs-ease)}
.zs-field:focus-within::after{transform:scaleX(1)}
.zs-field[data-invalid]::after{background:var(--zs-err);transform:scaleX(1)}
.zs-label{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--zs-ink);cursor:pointer}
.zs-label .zs-req{color:var(--zs-muted);font-weight:400}
.zs-input{appearance:none;-webkit-appearance:none;width:100%;min-height:44px;border:0;border-radius: 0;background:transparent;color:var(--zs-ink);font:var(--b-font-body);font-size:1rem;padding: .55rem 0;outline:none}
.zs-input::placeholder{color:var(--zs-muted);opacity:.7}
select.zs-input{background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 9px) 52%,calc(100% - 4px) 52%;background-size:5px 5px;background-repeat:no-repeat;padding-right: 1.4rem;cursor:pointer}
select.zs-input option{color:var(--b-text);background:var(--b-bg)}
textarea.zs-input{min-height:7.5rem;resize:vertical;line-height:1.5}
input[type=date].zs-input{min-width:0}
input[type=date].zs-input::-webkit-calendar-picker-indicator{opacity:.6;cursor:pointer}
.zs-msg{grid-column:1/-1;margin: 0;padding: 0 0 .55rem;font-size:.8rem;line-height:1.35;color:var(--zs-err);display:flex;gap: .4em;align-items:baseline}
.zs-msg[hidden]{display:none}
.zs-msg::before{content:"";flex:none;width:.42em;height:.42em;border-radius:50%;background:currentColor;transform:translateY(-.1em)}
.zs-field--third .zs-msg{grid-column:1}
.zs-hint{grid-column:1/-1;margin: 0;padding: 0 0 .55rem;font-size:.78rem;color:var(--zs-muted)}
/* honeypot: fuori dallo schermo, non display:none (alcuni bot lo saltano) */
.zs-hp{position:absolute !important;left:-9999px !important;width:1px;height:1px;overflow:hidden}
.zs-consent{grid-column:span 6;display:flex;gap: .8rem;align-items:flex-start;padding: 1.2rem 0 .3rem;position:relative;flex-wrap:wrap}
.zs-consent input{appearance:none;-webkit-appearance:none;flex:none;width:22px;height:22px;margin: 0;border:1px solid var(--zs-ink);border-radius: 0;background:transparent;display:grid;place-items:center;cursor:pointer;transition:background-color .25s var(--zs-ease)}
.zs-consent input::after{content:"";width:11px;height:6px;border-left:2px solid var(--zs-bg);border-bottom:2px solid var(--zs-bg);transform:translateY(-2px) rotate(-45deg) scale(0);transition:transform .3s var(--zs-ease)}
.zs-consent input:checked{background:var(--zs-ink)}
.zs-consent input:checked::after{transform:translateY(-2px) rotate(-45deg) scale(1)}
.zs-consent input[aria-invalid=true]{border-color:var(--zs-err);box-shadow: 0 0 0 1px var(--zs-err)}
/* il quadrato è 22px, l'area cliccabile è l'intera riga con l'etichetta: tap target >= 44px */
.zs-consent label{flex:1;min-width:12em;font-size:.86rem;line-height:1.45;color:var(--zs-ink);cursor:pointer;min-height:44px;margin-top: -.1rem}
.zs-consent label a{color:inherit;text-underline-offset:3px}
.zs-consent .zs-msg{flex-basis:100%;padding-left: calc(22px + .8rem)}
.zs-actions{grid-column:span 6;display:flex;align-items:center;justify-content:space-between;gap: 1rem;margin-top: 1.6rem;flex-wrap:wrap}
.zs-actions .zs-note{margin: 0;font-size:.78rem;color:var(--zs-muted);max-width:22em}
.zs-submit{position:relative;display:inline-flex;align-items:center;justify-content:center;gap: .6em;min-height:48px;min-width:9.5rem;padding: .8em 1.7em;border:1px solid var(--zs-ink);border-radius:var(--zs-pill);background:transparent;color:var(--zs-ink);font:var(--b-font-body);font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;transition:background-color .35s var(--zs-ease),color .35s var(--zs-ease)}
.zs-submit:hover{background:var(--zs-ink);color:var(--zs-bg)}
.zs-submit[disabled]{cursor:progress;opacity:.75}
.zs-spin{display:none;width:1em;height:1em;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:zs-spin .7s linear infinite}
.zs-submit[aria-busy=true] .zs-spin{display:inline-block}
@keyframes zs-spin{to{transform:rotate(360deg)}}
.zs-summary{grid-column:span 6;margin: 0 0 1.2rem;padding: 1rem 1.1rem;border-left:2px solid var(--zs-err);background:color-mix(in srgb,var(--zs-err) 7%,transparent);font-size:.88rem}
.zs-summary[hidden]{display:none}
.zs-summary p{margin: 0 0 .4rem;font-weight:600}
.zs-summary ul{margin: 0;padding-left: 1.1rem}
.zs-summary a{color:var(--zs-ink);text-underline-offset:3px}
.zs-status{grid-column:span 6;margin-top: 1rem}
.zs-status:empty{display:none}
.zs-neterr{padding: 1rem 1.1rem;border:1px solid var(--zs-err);display:flex;gap: 1rem;align-items:center;justify-content:space-between;flex-wrap:wrap;font-size:.9rem}
.zs-neterr button{min-height:44px;padding: .6em 1.3em;border:1px solid currentColor;border-radius:var(--zs-pill);background:transparent;color:inherit;font:var(--b-font-body);font-size:.78rem;letter-spacing:.1em;text-transform: var(--b-btn-case);cursor:pointer}
/* successo: il form lascia il posto al messaggio con la stessa curva della reference */
.zs-done{display:none;padding: 2.4rem 0;border-top:1px solid var(--zs-ink)}
.zs-done h3{font-family: var(--b-font-display);font-weight:400;font-size:clamp(1.8rem,3.4vw,2.8rem);line-height:1.05;margin: 0 0 .8rem;outline:none}
.zs-done p{margin: 0;color:var(--zs-muted);max-width:30em;line-height:1.5}
.zs-form-sec[data-state=done] .zs-done{display:block;animation:zs-in .8s var(--zs-ease) both}
.zs-form-sec[data-state=done] .zs-form{display:none}
@keyframes zs-in{from{opacity:0;transform:translateY(1.2rem)}to{opacity:1;transform:none}}
.zs-form-sec :focus-visible{outline:2px solid var(--zs-ink);outline-offset:3px}
.zs-form-sec .zs-input:focus-visible{outline:none}
.zs-sr{position:absolute !important;width:1px;height:1px;padding: 0;margin: -1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
@media(max-width:860px){
  .zs-form-wrap{grid-template-columns:1fr;gap: 2rem}
  .zs-field{grid-template-columns:7em minmax(0,1fr)}
  .zs-field--third{grid-column:span 6;grid-template-columns:7em minmax(0,1fr)}
  .zs-field--third .zs-label{padding-top: 0}
  .zs-field--third .zs-msg{grid-column:1/-1}
  .zs-actions{flex-direction:column-reverse;align-items:stretch}
  .zs-submit{width:100%}
}
@media(prefers-reduced-motion:reduce){
  .zs-form-sec *,.zs-form-sec *::before,.zs-form-sec *::after{transition-duration:.01ms !important;animation-duration:.01ms !important;animation-iteration-count:1 !important}
  /* lo spinner resta: è informazione di stato, non decorazione (più lento) */
  .zs-form-sec .zs-submit .zs-spin{animation:zs-spin 1.6s linear infinite !important}
}