/* ============================================================
   GANDINI LAB — COMPONENTS
   Libreria componenti condivisa. Dipende da tokens.css (+ motion.css).
   Single source per ui-kit.html e per tutti i template di pagina.
   B&W · light-first · editoriale. Accessibile (focus-visible, ARIA-ready).
   ============================================================ */

/* ---------- base ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-text);
  font-size:var(--text-base);line-height:var(--leading-body);-webkit-font-smoothing:antialiased}
::selection{background:var(--color-accent);color:var(--color-on-accent)}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--radius-xs)}
img{max-width:100%;display:block}
a{color:inherit}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}

/* ---------- layout helpers ---------- */
.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--space-6)}
.wrap-narrow{max-width:var(--container-narrow);margin:0 auto;padding:0 var(--space-6)}
.row{display:flex;gap:var(--space-4);flex-wrap:wrap;align-items:center}
.stack{display:flex;flex-direction:column;gap:var(--space-4)}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-6)}
@media(max-width:720px){.cols{grid-template-columns:1fr}}
.eyebrow{font-size:var(--text-xs);letter-spacing:var(--tracking-widest);text-transform:uppercase;color:var(--color-text-muted);display:flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:30px;height:1px;background:var(--color-text)}
.disp{font-family:var(--font-display);font-weight:var(--weight-display);letter-spacing:var(--tracking-snug);line-height:var(--leading-tight)}
.skip{position:absolute;left:-9999px;top:0;background:var(--color-text);color:var(--color-bg);padding:10px 16px;z-index:var(--z-toast)}
.skip:focus{left:16px;top:16px}
.media{background:repeating-linear-gradient(135deg,var(--color-surface) 0 14px,transparent 14px 28px),var(--color-surface);
  display:flex;align-items:flex-end;padding:var(--space-4);color:var(--color-text-muted);font-size:11px;letter-spacing:.1em;text-transform:uppercase}

/* ============ BUTTONS ============ */
.btn{font-family:var(--font-text);font-weight:var(--weight-semibold);font-size:var(--text-base);letter-spacing:.01em;
  padding:14px 26px;border-radius:var(--radius-pill);border:1px solid var(--color-accent);cursor:pointer;
  display:inline-flex;align-items:center;gap:10px;text-decoration:none;white-space:nowrap;
  transition:background var(--dur-base) var(--ease-standard),color var(--dur-base) var(--ease-standard),transform var(--dur-fast) var(--ease-standard),opacity var(--dur-base)}
.btn i{font-size:1.15em}
.btn-sm{padding:9px 18px;font-size:var(--text-sm)}
.btn-primary{background:var(--color-accent);color:var(--color-on-accent)}
.btn-primary:not(:disabled):not([aria-disabled="true"]):hover{background:transparent;color:var(--color-text)}
.btn-ghost{background:transparent;color:var(--color-text)}
.btn-ghost:not(:disabled):not([aria-disabled="true"]):hover{background:var(--color-accent);color:var(--color-on-accent)}
.btn-link{border-color:transparent;background:transparent;color:var(--color-text);padding-left:0;padding-right:0;border-radius:0}
.btn .arr{transition:transform var(--dur-base) var(--ease-standard)}
.btn:not(:disabled):hover .arr{transform:translateX(4px)}
.btn:not(:disabled):not([aria-disabled="true"]):active{transform:translateY(1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:var(--disabled-opacity);cursor:not-allowed}
.btn.is-loading{color:transparent;pointer-events:none;position:relative}
.btn.is-loading::after{content:"";position:absolute;width:16px;height:16px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;color:var(--color-on-accent);animation:spin .7s linear infinite}
.btn-ghost.is-loading::after{color:var(--color-text)}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ LINKS ============ */
.link-underline{text-decoration:none;background-image:linear-gradient(currentColor,currentColor);background-size:0% 1px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size var(--dur-base) var(--ease-standard);padding-bottom:2px}
.link-underline:hover,.link-underline:focus-visible{background-size:100% 1px}
.link-static{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:var(--color-line-strong)}
.link-static:hover{text-decoration-color:var(--color-text)}

/* ============ FORM ============ */
.field{display:flex;flex-direction:column;gap:8px}
.field+.field{margin-top:var(--space-5)}
.field label{font-size:var(--text-xs);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-text-muted)}
.field label .req{color:var(--color-text);margin-left:3px}
.field .hint{font-size:var(--text-xs);color:var(--color-text-muted)}
.field input[type=text],.field input[type=email],.field input[type=search],.field input[type=tel],.field textarea,.field select{
  font-family:var(--font-text);font-size:var(--text-base);color:var(--field-text);background:var(--field-bg);width:100%;
  border:none;border-bottom:var(--field-border-w) solid var(--field-border);padding:var(--control-pad-y) 0;transition:border-color var(--dur-base) var(--ease-standard)}
.field textarea{min-height:112px;resize:vertical}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A5E62' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 2px center;padding-right:22px}
.field input::placeholder,.field textarea::placeholder{color:var(--field-placeholder)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--field-border-focus);border-bottom-width:var(--border-thin)}
.field input:hover:not(:focus):not(:disabled),.field textarea:hover:not(:focus):not(:disabled),.field select:hover:not(:focus):not(:disabled){border-color:var(--field-border-hover)}
.field input:disabled,.field textarea:disabled,.field select:disabled{opacity:var(--disabled-opacity);cursor:not-allowed}
.field.is-error input,.field.is-error textarea,.field.is-error select{border-color:var(--state-error);border-bottom-width:var(--border-thin)}
.field.is-error label{font-weight:var(--weight-semibold);color:var(--color-text)}
.field .msg{display:none;font-size:var(--text-xs);align-items:center;gap:7px;margin-top:2px}
.field.is-error .msg.err{display:inline-flex;color:var(--color-text)}
.field.is-ok .msg.ok{display:inline-flex;color:var(--color-text)}
.field .msg::before{content:"";display:inline-flex;align-items:center;justify-content:center;width:15px;height:15px;border:1.5px solid currentColor;border-radius:50%;font-weight:700;font-size:10px;line-height:1;flex:none}
.field .msg.err::before{content:"!"}
.field .msg.ok::before{content:"✓";font-size:9px}
.field.is-ok input,.field.is-ok select{border-color:var(--color-text)}
.search{position:relative}
.search i{position:absolute;left:0;top:50%;transform:translateY(-50%);color:var(--color-text-muted);font-size:18px}
.search input{padding-left:26px !important}

/* checkbox / radio / switch */
.opt{display:flex;align-items:flex-start;gap:11px;cursor:pointer;font-size:var(--text-sm);color:var(--color-text-secondary);line-height:1.4}
.opt input{position:absolute;opacity:0;width:0;height:0}
.opt .box{flex:none;width:20px;height:20px;border:1.5px solid var(--color-line-strong);display:inline-flex;align-items:center;justify-content:center;transition:border-color var(--dur-fast),background var(--dur-fast);margin-top:1px}
.opt .box.round{border-radius:50%}
.opt:hover .box{border-color:var(--color-text)}
.opt input:checked~.box{background:var(--color-accent);border-color:var(--color-accent)}
.opt .box::after{content:"";opacity:0;transition:opacity var(--dur-fast)}
.opt .box:not(.round)::after{width:10px;height:6px;border-left:2px solid var(--color-on-accent);border-bottom:2px solid var(--color-on-accent);transform:rotate(-45deg) translateY(-1px)}
.opt .box.round::after{width:8px;height:8px;border-radius:50%;background:var(--color-on-accent)}
.opt input:checked~.box::after{opacity:1}
.opt input:focus-visible~.box{box-shadow:var(--focus-ring)}
.switch{width:42px;height:24px;border-radius:var(--radius-pill);background:var(--color-line-strong);position:relative;transition:background var(--dur-base);flex:none}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--color-bg);transition:transform var(--dur-base) var(--ease-standard)}
.opt input:checked~.switch{background:var(--color-accent)}
.opt input:checked~.switch::after{transform:translateX(18px)}

/* ============ TAGS / CHIPS / BADGE ============ */
.tag{display:inline-flex;align-items:center;gap:7px;font-size:var(--text-xs);letter-spacing:.03em;padding:6px 13px;border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);color:var(--color-text-secondary);margin:0 6px 6px 0;background:transparent}
.tag.solid{background:var(--color-accent);color:var(--color-on-accent);border-color:var(--color-accent)}
.tag button{background:none;border:none;color:inherit;cursor:pointer;display:inline-flex;padding:0;font-size:14px;line-height:1;opacity:.6}
.tag button:hover{opacity:1}
.tag.filter{cursor:pointer;transition:border-color var(--dur-fast),color var(--dur-fast)}
.tag.filter:hover{border-color:var(--color-text);color:var(--color-text)}
.tag.filter[aria-pressed=true]{background:var(--color-accent);color:var(--color-on-accent);border-color:var(--color-accent)}
.badge-city{display:inline-flex;align-items:baseline;gap:.5em;font-family:var(--font-display);font-weight:var(--weight-display);font-size:var(--text-lg);letter-spacing:.01em}
.badge-city i{font-family:var(--font-text);font-weight:var(--weight-medium);font-size:.5em;letter-spacing:.14em;text-transform:uppercase;font-style:normal}
.badge-city .city{display:block;font-family:var(--font-text);font-weight:var(--weight-medium);font-size:.34em;letter-spacing:.2em;text-transform:uppercase;color:var(--color-text-muted);margin-top:.4em}

/* ============ ALERTS ============ */
.alert{display:flex;gap:13px;align-items:flex-start;border:1px solid var(--color-line-strong);border-left-width:3px;border-radius:var(--radius-sm);padding:var(--space-4) var(--space-5);font-size:var(--text-sm)}
.alert i{font-size:20px;flex:none;margin-top:1px}
.alert .t{font-weight:var(--weight-semibold);color:var(--color-text)}
.alert p{color:var(--color-text-secondary);margin-top:2px}
.alert.warn{background:var(--color-surface)}
.alert.err{border-color:var(--color-text)}

/* ============ BREADCRUMB ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:var(--text-sm);color:var(--color-text-muted)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--color-text)}
.crumbs .sep{opacity:.5}
.crumbs [aria-current]{color:var(--color-text)}

/* ============ PAGINATION ============ */
.pager{display:flex;align-items:center;gap:6px}
.pager a,.pager span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);text-decoration:none;font-size:var(--text-sm);color:var(--color-text-secondary);border:1px solid transparent;transition:border-color var(--dur-fast),color var(--dur-fast)}
.pager a:hover{border-color:var(--color-line-strong);color:var(--color-text)}
.pager [aria-current]{border-color:var(--color-text);color:var(--color-text);font-weight:var(--weight-semibold)}
.pager .dots{border:none;pointer-events:none}

/* ============ TABS ============ */
.tabs{border-bottom:1px solid var(--color-line);display:flex;gap:var(--space-6);flex-wrap:wrap}
.tabs button{background:none;border:none;cursor:pointer;font-family:var(--font-text);font-size:var(--text-sm);color:var(--color-text-muted);padding:0 0 14px;position:relative;letter-spacing:.02em;transition:color var(--dur-fast)}
.tabs button:hover{color:var(--color-text)}
.tabs button[aria-selected=true]{color:var(--color-text)}
.tabs button[aria-selected=true]::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--color-text)}
.tabpanel{padding-top:var(--space-5);color:var(--color-text-secondary);font-size:var(--text-sm)}
.tabpanel[hidden]{display:none}

/* ============ ACCORDION ============ */
.acc{border-top:1px solid var(--color-line)}
.acc details{border-bottom:1px solid var(--color-line)}
.acc summary{list-style:none;cursor:pointer;padding:var(--space-5) 0;display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);font-family:var(--font-display);font-weight:var(--weight-display);font-size:var(--text-lg);color:var(--color-text)}
.acc summary::-webkit-details-marker{display:none}
.acc summary .ic{font-size:22px;transition:transform var(--dur-base) var(--ease-standard);flex:none}
.acc details[open] summary .ic{transform:rotate(45deg)}
.acc .body{padding:0 0 var(--space-5);color:var(--color-text-secondary);font-size:var(--text-sm);max-width:64ch}

/* ============ TOOLTIP ============ */
.tip{position:relative;border-bottom:1px dotted var(--color-line-strong);cursor:help}
.tip::after{content:attr(data-tip);position:absolute;left:50%;bottom:calc(100% + 8px);transform:translateX(-50%) translateY(4px);background:var(--color-inverse-bg);color:var(--color-inverse-text);font-size:var(--text-xs);letter-spacing:.02em;padding:7px 11px;border-radius:var(--radius-sm);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--dur-fast),transform var(--dur-fast)}
.tip:hover::after,.tip:focus-visible::after{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============ TABLE ============ */
table.tbl{width:100%;border-collapse:collapse;font-size:var(--text-sm)}
table.tbl th,table.tbl td{text-align:left;padding:var(--space-4);border-bottom:1px solid var(--color-line)}
table.tbl th{font-size:var(--text-xs);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-text-muted);font-weight:var(--weight-semibold)}
table.tbl tbody tr{transition:background var(--dur-fast)}
table.tbl tbody tr:hover{background:var(--color-surface)}

/* ============ SKELETON ============ */
.sk{background:linear-gradient(100deg,var(--color-surface) 30%,var(--color-surface-2) 50%,var(--color-surface) 70%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:var(--radius-sm)}
@keyframes shimmer{to{background-position:-200% 0}}
.sk-line{height:12px;margin-bottom:10px}
.sk-media{aspect-ratio:3/2;border-radius:var(--radius-md)}

/* ============ SITE HEADER ============ */
header.site{position:sticky;top:0;z-index:var(--z-sticky);background:color-mix(in srgb,var(--color-bg) 85%,transparent);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--color-line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:var(--space-6)}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--color-text)}
.logo svg{width:26px;height:26px;color:var(--color-text)}
.logo .wm{font-family:var(--font-display);font-weight:var(--weight-display);font-size:1.25rem;letter-spacing:.02em;line-height:1;display:flex;gap:.4em;align-items:baseline}
.logo .wm i{font-family:var(--font-text);font-weight:var(--weight-medium);font-size:.6em;letter-spacing:.12em;text-transform:uppercase;font-style:normal}
nav.menu{display:flex;gap:var(--space-6);align-items:center;margin-left:auto}
nav.menu a{font-size:var(--text-sm);letter-spacing:.02em;color:var(--color-text-secondary);text-decoration:none}
nav.menu a:hover{color:var(--color-text)}
.hamb{display:none;background:none;border:none;cursor:pointer;color:var(--color-text);font-size:26px;line-height:1}
@media(max-width:820px){nav.menu{display:none}.hamb{display:inline-flex}}

/* ============ DRAWER ============ */
.drawer{position:fixed;inset:0;z-index:var(--z-modal);visibility:hidden;pointer-events:none}
.drawer[data-open]{visibility:visible;pointer-events:auto}
.drawer .scrim{position:absolute;inset:0;background:color-mix(in srgb,var(--gl-ink) 45%,transparent);opacity:0;transition:opacity var(--dur-base)}
.drawer[data-open] .scrim{opacity:1}
.drawer .panel{position:absolute;top:0;right:0;height:100%;width:min(84vw,360px);background:var(--color-bg);border-left:1px solid var(--color-line);padding:var(--space-6);transform:translateX(100%);transition:transform var(--dur-slow) var(--ease-standard);display:flex;flex-direction:column;gap:var(--space-5)}
.drawer[data-open] .panel{transform:none}
.drawer .panel a{text-decoration:none;font-family:var(--font-display);font-size:var(--text-xl);color:var(--color-text)}
.drawer .x{align-self:flex-end;background:none;border:none;font-size:26px;cursor:pointer;color:var(--color-text)}

/* ============ MODAL ============ */
dialog.modal{border:none;padding:0;margin:auto;max-width:min(92vw,480px);width:100%;background:var(--color-bg);color:var(--color-text);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
dialog.modal::backdrop{background:color-mix(in srgb,var(--gl-ink) 45%,transparent);backdrop-filter:blur(2px)}
dialog.modal .inner{padding:var(--space-7)}
dialog.modal h3{font-family:var(--font-display);font-weight:var(--weight-display);font-size:var(--text-xl);margin-bottom:var(--space-3)}
dialog.modal p{color:var(--color-text-secondary);font-size:var(--text-sm);margin-bottom:var(--space-6)}
dialog[open]{animation:modalIn var(--dur-base) var(--ease-out)}
@keyframes modalIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ============ TOAST ============ */
.toasts{position:fixed;right:var(--space-5);bottom:var(--space-5);z-index:var(--z-toast);display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.toast{background:var(--color-inverse-bg);color:var(--color-inverse-text);border-radius:var(--radius-md);padding:14px 18px;font-size:var(--text-sm);display:flex;align-items:center;gap:11px;box-shadow:var(--shadow-md);animation:toastIn var(--dur-base) var(--ease-out)}
.toast i{font-size:19px}
@keyframes toastIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:none}}

/* ============ COOKIE BANNER (GDPR) ============ */
.cookie{position:fixed;left:var(--space-5);right:var(--space-5);bottom:var(--space-5);z-index:var(--z-overlay);max-width:520px;background:var(--color-bg);border:1px solid var(--color-line-strong);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-lg)}
.cookie h4{font-family:var(--font-display);font-weight:var(--weight-display);font-size:var(--text-lg);margin-bottom:var(--space-2)}
.cookie p{font-size:var(--text-sm);color:var(--color-text-secondary);margin-bottom:var(--space-5)}
.cookie p a{text-decoration:underline;text-underline-offset:2px}
.cookie .acts{display:flex;gap:12px;flex-wrap:wrap}

/* ============ GALLERY / LIGHTBOX ============ */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4)}
.gal button{border:none;padding:0;cursor:zoom-in;background:none;border-radius:var(--radius-md);overflow:hidden}
.gal .media{aspect-ratio:1;transition:transform var(--dur-slow) var(--ease-standard)}
.gal button:hover .media{transform:scale(1.04)}
@media(max-width:720px){.gal{grid-template-columns:repeat(2,1fr)}}
.lb{position:fixed;inset:0;z-index:var(--z-modal);background:color-mix(in srgb,var(--gl-ink) 88%,transparent);display:none;align-items:center;justify-content:center;padding:var(--space-6)}
.lb[data-open]{display:flex}
.lb .big{width:min(86vw,760px);aspect-ratio:4/3;background:var(--gl-gray-800);color:#fff;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);font-family:var(--font-mono);letter-spacing:.1em}
.lb .x{position:absolute;top:var(--space-5);right:var(--space-6);background:none;border:none;color:#fff;font-size:30px;cursor:pointer}

/* ============ SITE FOOTER ============ */
footer.site{background:var(--color-inverse-bg);color:var(--color-inverse-text);padding:var(--space-9) 0 var(--space-7)}
footer.site a{color:inherit;text-decoration:none}
footer.site .ft-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--space-6);padding-bottom:var(--space-8)}
footer.site .ft-wm{font-family:var(--font-display);font-weight:var(--weight-display);font-size:var(--text-2xl);letter-spacing:.01em}
footer.site .ft-wm i{font-family:var(--font-text);font-weight:var(--weight-semibold);font-size:.5em;letter-spacing:.16em;text-transform:uppercase;font-style:normal;vertical-align:.3em;margin-left:.3em}
footer.site .ft-col h4{font-size:var(--text-xs);letter-spacing:var(--tracking-wider);text-transform:uppercase;opacity:.6;margin-bottom:var(--space-4);font-weight:var(--weight-regular)}
footer.site .ft-col a{display:block;padding:5px 0;opacity:.85}
footer.site .ft-col a:hover{opacity:1}
footer.site .ft-bottom{display:flex;justify-content:space-between;border-top:1px solid color-mix(in srgb,var(--color-inverse-text) 20%,transparent);padding-top:var(--space-5);font-size:var(--text-xs);opacity:.6;letter-spacing:.03em;flex-wrap:wrap;gap:12px}
@media(max-width:820px){footer.site .ft-top{grid-template-columns:1fr 1fr}footer.site .ft-wm{grid-column:1/-1;margin-bottom:var(--space-5)}}