/* Isola2051 — calm investigative civic-tech. Public data room, not protest site.
   Deliberate single light look: paper surface, ink text, lake-blue accent.
   Category colors: validated categorical palette, fixed order by entity. */

:root {
  --paper: #fcfcfb;
  --paper-2: #f4f3f0;
  --ink: #191918;
  --ink-2: #52514e;
  --ink-3: #8a8880;
  --line: #e3e1db;
  --accent: #2a78d6;
  --accent-ink: #1c5aa8;

  /* Fixed category colors (slots 1–7 of the validated palette, assigned by
     display order at adoption; color follows the category forever). */
  --cat-terraferma: #2a78d6;
  --cat-manutenzione: #eb6834;
  --cat-macchina: #1baf7a;
  --cat-rimosso: #eda100;
  --cat-fruizione: #e87ba4;
  --cat-misti: #008300;
  --cat-eventi: #4a3aa7;

  --ok: #008300;
  --warn: #b97d00;
  --bad: #c0392b;

  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
}

.iso-container { max-width: 1060px; margin: 0 auto; padding: 0 20px; }

a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.3rem, 3vw, 1.7rem); margin-top: 1.8em; }
h3 { font-size: 1.12rem; }

.iso-num { font-variant-numeric: tabular-nums; }

/* ---------- header / footer ---------- */
.iso-header { border-bottom: 1px solid var(--line); background: var(--paper); position: sticky; top: 0; z-index: 40; }
.iso-header-inner { display: flex; align-items: center; gap: 18px; min-height: 56px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; }
.iso-brand { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); }
.iso-brand-mark { width: 14px; height: 14px; border-radius: 50% 50% 50% 4px; background: var(--accent); display: inline-block; transform: rotate(45deg); }
.iso-brand-name { font-family: var(--serif); font-size: 1.15rem; letter-spacing: .01em; }
.iso-brand-name strong { color: var(--accent-ink); }
.iso-nav { display: flex; gap: 4px 14px; flex-wrap: wrap; margin-left: auto; }
.iso-nav a { font-size: .87rem; color: var(--ink-2); text-decoration: none; padding: 4px 2px; border-bottom: 2px solid transparent; }
.iso-nav a:hover { color: var(--ink); }
.iso-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.iso-nav-toggle { display: none; }
@media (max-width: 860px) {
  .iso-nav-toggle { display: block; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; font: inherit; color: var(--ink-2); }
  .iso-nav { display: none; width: 100%; flex-direction: column; gap: 0; padding: 6px 0 10px; }
  .iso-nav.open { display: flex; }
  .iso-nav a { padding: 8px 2px; font-size: 1rem; border-bottom: none; }
}

.iso-main { min-height: 65vh; padding-bottom: 60px; }
.iso-footer { border-top: 1px solid var(--line); background: var(--paper-2); padding: 30px 0 40px; color: var(--ink-2); font-size: .88rem; }
.iso-footer-claim { font-family: var(--serif); font-size: 1.05rem; color: var(--ink); }

/* ---------- page scaffolding ---------- */
.iso-hero { padding: 46px 0 8px; }
.iso-kicker { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-ink); font-weight: 600; margin: 0 0 10px; }
.iso-lede { font-size: 1.12rem; color: var(--ink-2); max-width: 46em; }
.iso-section { margin-top: 34px; }
.iso-note { font-size: .85rem; color: var(--ink-3); overflow-wrap: anywhere; }
.iso-card, .iso-drawer, .iso-claim, .iso-entity { min-width: 0; overflow-wrap: break-word; }
.iso-card strong, .iso-drawer h3 { overflow-wrap: anywhere; }

/* ---------- badges ---------- */
.iso-badge { cursor: help; display: inline-flex; align-items: center; gap: 5px; font-size: .72rem; font-weight: 600; letter-spacing: .03em; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2); background: var(--paper); white-space: nowrap; vertical-align: middle; }
.iso-badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--ink-3); }
.iso-badge.b-fact::before { background: var(--accent); }
.iso-badge.b-class::before { background: var(--cat-rimosso); }
.iso-badge.b-inference::before { background: var(--ink-3); }
.iso-badge.b-extract::before { background: var(--warn); }

.iso-status { display: inline-block; font-size: .74rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: 3px 10px; border-radius: 4px; }
.iso-status.s-true { background: #e3f2e3; color: #1b5e20; }
.iso-status.s-partial { background: #fdf3dc; color: #7a5200; }
.iso-status.s-misleading { background: #fbe7e0; color: #93320f; }
.iso-status.s-unproven { background: #ececf6; color: #3d3580; }
.iso-status.s-disputed { background: #f1e6ee; color: #7a2e5d; }
.iso-status.s-interpretation { background: var(--paper-2); color: var(--ink-2); }

/* ---------- cards ---------- */
.iso-grid { display: grid; gap: 14px; }
.iso-grid.g2 { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.iso-grid.g3 { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.iso-card { border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 16px 18px; }
.iso-card h3 { margin-top: 0; }

.iso-metric { display: flex; flex-direction: column; gap: 2px; }
.iso-metric .m-number { font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2rem); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.iso-metric .m-label { font-size: .86rem; color: var(--ink-2); }
.iso-metric .m-src { margin-top: 8px; }

/* ---------- money bars ---------- */
.iso-bar-row { display: grid; grid-template-columns: minmax(150px, 260px) 1fr; gap: 6px 14px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--line); }
@media (max-width: 640px) { .iso-bar-row { grid-template-columns: 1fr; padding: 12px 0; } }
.iso-bar-label { font-size: .92rem; }
.iso-bar-track { display: flex; align-items: center; gap: 10px; }
.iso-bar { height: 16px; border-radius: 0 4px 4px 0; min-width: 3px; }
.iso-bar-val { font-size: .85rem; color: var(--ink-2); white-space: nowrap; font-variant-numeric: tabular-nums; }

.iso-stack { display: flex; height: 26px; border-radius: 6px; overflow: hidden; gap: 2px; background: var(--paper); }
.iso-stack > div { min-width: 2px; }

/* ---------- tables ---------- */
.iso-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table.iso-table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: .87rem; background: #fff; }
.iso-table th { text-align: left; font-weight: 600; color: var(--ink-2); background: var(--paper-2); padding: 8px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; position: sticky; top: 0; }
.iso-table th.num, .iso-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.iso-table td { padding: 7px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.iso-table tbody tr:hover { background: #f7f9fc; }
.iso-table th[data-sort] { cursor: pointer; }
.iso-table th[data-sort]:hover { color: var(--ink); }

/* ---------- filters ---------- */
.iso-filters { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0 18px; align-items: center; }
.iso-filters input[type="search"], .iso-filters select {
  font: inherit; font-size: .9rem; padding: 7px 10px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: var(--ink); min-width: 0;
}
.iso-filters input[type="search"] { flex: 1 1 220px; }
.iso-chip { font: inherit; font-size: .82rem; padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--ink-2); cursor: pointer; }
.iso-chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- source panel / excerpts ---------- */
.iso-source { border-left: 3px solid var(--line); padding: 6px 0 6px 14px; margin: 10px 0; }
.iso-source blockquote { margin: 4px 0 6px; font-family: var(--serif); font-size: .95rem; color: var(--ink); }
.iso-source .src-meta { font-size: .8rem; color: var(--ink-3); }
details.iso-sources > summary { cursor: pointer; font-size: .85rem; color: var(--accent-ink); font-weight: 600; list-style: none; }
details.iso-sources > summary::before { content: '▸ '; }
details.iso-sources[open] > summary::before { content: '▾ '; }

/* ---------- claim cards ---------- */
.iso-claim { border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 18px 20px; margin-bottom: 14px; }
.iso-claim .c-quote { font-family: var(--serif); font-size: 1.12rem; margin: 8px 0 4px; }
.iso-claim .c-meta { font-size: .8rem; color: var(--ink-3); margin-bottom: 10px; }

/* ---------- map (base: tavola T.02a del PFTE, pin overlay in percent) ---------- */
.iso-map-wrap { display: grid; grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); gap: 18px; align-items: start; }
@media (max-width: 860px) { .iso-map-wrap { grid-template-columns: 1fr; } }
.iso-map-frame { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; box-shadow: 0 1px 3px rgba(25,25,24,.06); }
.iso-map-canvas { position: relative; }
.iso-map-canvas img { display: block; width: 100%; height: auto; background-size: cover; background-repeat: no-repeat; }
.iso-map-pin { position: absolute; transform: translate(-50%, -50%); background: none; border: 0; padding: 10px; margin: 0; cursor: pointer; font: inherit; z-index: 2; }
.iso-map-pin .pin-dot { display: block; width: 15px; height: 15px; border-radius: 50%; background: var(--pin); border: 2.5px solid #fff; box-shadow: 0 1px 4px rgba(0,0,0,.45); transition: transform .12s; }
.iso-map-pin:hover .pin-dot, .iso-map-pin.active .pin-dot, .iso-map-pin:focus-visible .pin-dot { transform: scale(1.35); }
.iso-map-pin.active .pin-dot { box-shadow: 0 0 0 4px color-mix(in srgb, var(--pin) 30%, transparent), 0 1px 4px rgba(0,0,0,.45); }
.iso-map-pin .pin-label { position: absolute; left: 50%; bottom: calc(100% - 4px); transform: translateX(-50%); white-space: nowrap; font-size: .74rem; font-weight: 600; color: var(--ink); background: rgba(255,255,255,.94); border: 1px solid var(--line); border-radius: 5px; padding: 2px 7px; box-shadow: 0 1px 3px rgba(0,0,0,.18); opacity: 0; pointer-events: none; transition: opacity .12s; }
.iso-map-pin .pin-amount { color: var(--ink-2); font-weight: 500; }
.iso-map-pin:hover .pin-label, .iso-map-pin.active .pin-label, .iso-map-pin:focus-visible .pin-label { opacity: 1; }
.iso-map-pin.label-below .pin-label { bottom: auto; top: calc(100% - 4px); }
.iso-map-pin.edge-left .pin-label { left: 0; transform: none; }
.iso-map-pin.edge-right .pin-label { left: auto; right: 0; transform: none; }
@media (max-width: 860px) { .iso-map-pin { padding: 12px; } .iso-map-pin .pin-dot { width: 17px; height: 17px; } }
.iso-map-caption { font-size: .8rem; color: var(--ink-3); padding: 8px 12px; background: #fff; border-top: 1px solid var(--line); }
.iso-map3d-stage { position: relative; background: #e0eaf1; touch-action: none; }
.iso-map3d-stage canvas { display: block; width: 100%; height: clamp(340px, 58vh, 620px); cursor: grab; }
.iso-map3d-stage canvas:active { cursor: grabbing; }
.iso-map3d-stage .iso-map-pin { transform: translate(-50%, -50%); }
.m3d-hint { position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%); font-size: .78rem; color: var(--ink-2); background: rgba(255,255,255,.9); border: 1px solid var(--line); border-radius: 999px; padding: 4px 14px; pointer-events: none; transition: opacity .4s; }

/* ---------- timeline ---------- */
.iso-tl { list-style: none; margin: 0; padding: 0; position: relative; }
.iso-tl::before { content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.iso-tl li { position: relative; padding: 0 0 22px 34px; }
.iso-tl li::before { content: ''; position: absolute; left: 0; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); border: 3px solid var(--accent); }
.iso-tl li.tl-svolta::before { border-color: var(--cat-manutenzione); width: 16px; height: 16px; left: -2px; }
.iso-tl li.tl-svolta .tl-title { font-weight: 700; }
.iso-tl li.tl-orizzonte::before { border-color: var(--ink-3); }
.iso-tl .tl-date { font-size: .8rem; font-weight: 700; letter-spacing: .05em; color: var(--ink-3); text-transform: uppercase; }
.iso-tl .tl-title { font-family: var(--serif); font-size: 1.08rem; margin: 2px 0 4px; }
.iso-tl .tl-desc { font-size: .92rem; color: var(--ink-2); max-width: 60em; }

/* ---------- share cards ---------- */
.iso-share { border: 1px solid var(--ink); border-radius: 12px; background: #fff; padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.iso-share .sh-number { font-family: var(--serif); font-size: 2.3rem; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.iso-share .sh-sub { font-size: .95rem; color: var(--ink-2); }
.iso-share .sh-exp { font-size: .85rem; color: var(--ink-2); border-top: 1px solid var(--line); padding-top: 10px; margin-top: 6px; }
.iso-share .sh-brand { font-size: .75rem; color: var(--ink-3); display: flex; justify-content: space-between; margin-top: 4px; }

/* ---------- entities ---------- */
.iso-entity { border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 14px 16px; }
.iso-entity .e-type { font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); }
.iso-rel { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.iso-rel .r-arrow { color: var(--ink-3); padding: 0 6px; }

/* ---------- detail drawer ---------- */
.iso-drawer { border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 10px; background: #fff; padding: 18px 20px; margin-top: 14px; }

/* ---------- utility ---------- */
.iso-cta { display: inline-block; background: var(--ink); color: #fff; border-radius: 8px; padding: 10px 18px; text-decoration: none; font-weight: 600; font-size: .95rem; }
.iso-cta:hover { background: #000; color: #fff; }
.iso-cta.secondary { background: transparent; color: var(--ink); border: 1px solid var(--ink-2); }
.iso-visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.iso-skeleton { color: var(--ink-3); font-size: .9rem; padding: 30px 0; }
.iso-dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 7px; vertical-align: baseline; }