@import url('fonts.css');

/* ============================================================
   STRUMENTI — design system "Officina"
   Ispirato agli strumenti di misura di precisione: calibri,
   righelli, quaderni tecnici. Carta calda, inchiostro, ottone.
   ============================================================ */

:root{
  --paper:        #f4eee1;
  --paper-raised: #fffcf5;
  --paper-sunken: #eae1cd;
  --ink:          #241f18;
  --ink-soft:     #5c5348;
  --ink-faint:    #948a79;
  --line:         #d9cdb1;
  --line-strong:  #c2b190;
  --rust:         #bd4b26;
  --rust-deep:    #8f3517;
  --rust-ink:     #fff6f1;
  --brass:        #93731f;
  --brass-bright: #c99a2e;
  --ok:           #3f6b46;

  --font-display: 'Fraunces', 'Iowan Old Style', serif;
  --font-body:    'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', 'SFMono-Regular', monospace;

  --radius: 3px;
  --shadow-card: 0 1px 0 var(--line), 0 8px 24px -12px rgba(36,31,24,.35);
  --shadow-pop:  0 2px 0 var(--line-strong), 0 20px 40px -16px rgba(36,31,24,.45);

  color-scheme: light;
}

:root[data-theme="dark"]{
  --paper:        #1b1712;
  --paper-raised: #241f18;
  --paper-sunken: #14110d;
  --ink:          #ece2cd;
  --ink-soft:     #b6a992;
  --ink-faint:    #7d7263;
  --line:         #3a3226;
  --line-strong:  #4d4432;
  --rust:         #e2723f;
  --rust-deep:    #f08a5a;
  --rust-ink:     #1e0f09;
  --brass:        #d4af5a;
  --brass-bright: #e7c876;
  --ok:           #6ea075;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:        #1b1712;
    --paper-raised: #241f18;
    --paper-sunken: #14110d;
    --ink:          #ece2cd;
    --ink-soft:     #b6a992;
    --ink-faint:    #7d7263;
    --line:         #3a3226;
    --line-strong:  #4d4432;
    --rust:         #e2723f;
    --rust-deep:    #f08a5a;
    --rust-ink:     #1e0f09;
    --brass:        #d4af5a;
    --brass-bright: #e7c876;
    --ok:           #6ea075;
    color-scheme: dark;
  }
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  background-attachment: fixed;
  transition: background-color .25s ease, color .25s ease;
}

a{ color: var(--rust-deep); }
:root[data-theme="dark"] a{ color: var(--rust); }
img{ max-width: 100%; display:block; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 .5em;
  color: var(--ink);
}
h1{ font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 700; line-height: 1.05; }
h2{ font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
p{ margin: 0 0 1em; color: var(--ink-soft); }

.mono{ font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- layout shell ---------- */
.wrap{ max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.wrap--narrow{ max-width: 760px; }

/* ---------- ruler-tick divider ---------- */
.ticks{
  height: 14px;
  background-image: repeating-linear-gradient(
    90deg, var(--line-strong) 0 1px, transparent 1px 8px
  );
  background-position: bottom;
  background-repeat: repeat-x;
  background-size: 8px 14px;
  opacity: .8;
  margin: 0;
}
.ticks--big{
  background-image: repeating-linear-gradient(
    90deg, var(--line-strong) 0 1px, transparent 1px 8px,
           var(--line-strong) 8px 9px, transparent 9px 16px,
           var(--line-strong) 16px 17px, transparent 17px 24px,
           var(--line-strong) 24px 26px, transparent 26px 32px
  );
  height: 18px;
}

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 0;
}
.brand{
  display:flex; align-items:baseline; gap:.5rem;
  text-decoration:none; color:var(--ink);
}
.brand .mark{
  font-family: var(--font-mono); font-size:.68rem; letter-spacing:.14em;
  color: var(--rust); border:1px solid var(--rust); border-radius: var(--radius);
  padding: 2px 6px; transform: translateY(-2px);
}
.brand .word{
  font-family: var(--font-display); font-style: italic; font-weight:600;
  font-size: 1.5rem;
}
.site-nav{ display:flex; align-items:center; gap: 20px; }
.site-nav a{
  color: var(--ink-soft); text-decoration:none; font-size:.95rem;
  border-bottom: 1px solid transparent;
}
.site-nav a:hover{ color: var(--ink); border-color: var(--rust); }

.theme-toggle{
  appearance:none; border:1px solid var(--line-strong); background: var(--paper-raised);
  color: var(--ink); width:34px; height:34px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; cursor:pointer;
  transition: transform .2s ease, border-color .2s ease;
}
.theme-toggle:hover{ border-color: var(--rust); transform: rotate(20deg); }
.theme-toggle svg{ width:16px; height:16px; }

/* ---------- hero ---------- */
.hero{ padding: 64px 0 40px; }
.eyebrow{
  font-family: var(--font-mono); font-size:.72rem; letter-spacing:.16em;
  text-transform: uppercase; color: var(--brass); display:flex; align-items:center; gap:.6em;
  margin-bottom: 1em;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--brass); display:inline-block; }
.hero p.lead{ font-size:1.15rem; max-width:56ch; }

/* ---------- tool grid ---------- */
.tool-grid{
  display:grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr));
  gap:20px; padding: 12px 0 64px;
}
.tool-card{
  position:relative; display:block; text-decoration:none; color:var(--ink);
  background: var(--paper-raised); border:1px solid var(--line);
  border-radius: var(--radius); padding: 26px 22px 22px;
  box-shadow: var(--shadow-card);
  opacity:0; transform: translateY(10px);
  animation: rise .5s ease forwards;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tool-card:nth-child(1){ animation-delay:.02s }
.tool-card:nth-child(2){ animation-delay:.08s }
.tool-card:nth-child(3){ animation-delay:.14s }
.tool-card:nth-child(4){ animation-delay:.2s }
.tool-card:nth-child(5){ animation-delay:.26s }
.tool-card:nth-child(6){ animation-delay:.32s }
.tool-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-pop); border-color: var(--rust); }
.tool-card .num{
  font-family: var(--font-mono); font-size:.75rem; color: var(--ink-faint);
}
.tool-card h3{ font-size:1.15rem; margin: .35em 0 .3em; }
.tool-card p{ font-size:.92rem; margin:0; }
.tool-card .corner{
  position:absolute; width:10px; height:10px; border-color: var(--rust); opacity:0;
  transition: opacity .2s ease;
}
.tool-card:hover .corner{ opacity:1; }
.tool-card .corner.tl{ top:6px; left:6px; border-top:2px solid; border-left:2px solid; }
.tool-card .corner.br{ bottom:6px; right:6px; border-bottom:2px solid; border-right:2px solid; }

.tool-card.soon{ opacity:.55; cursor:default; }
.tool-card.soon:hover{ transform:none; box-shadow: var(--shadow-card); border-color:var(--line); }
.badge-soon{
  font-family: var(--font-mono); font-size:.65rem; letter-spacing:.08em;
  background: var(--paper-sunken); color: var(--ink-faint);
  padding: 2px 6px; border-radius: 2px; text-transform: uppercase;
}

@keyframes rise{ to{ opacity:1; transform:none; } }

/* ---------- tool page ---------- */
.tool-page{ padding: 40px 0 72px; }
.tool-head{ margin-bottom: 28px; }
.breadcrumb{
  font-family: var(--font-mono); font-size:.72rem; color: var(--ink-faint);
  margin-bottom: 18px; letter-spacing:.02em;
}
.breadcrumb a{ color: var(--ink-faint); }

.panel{
  background: var(--paper-raised); border:1px solid var(--line);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-card);
}

.field{ margin-bottom: 20px; }
.field label{
  display:block; font-family: var(--font-mono); font-size:.72rem;
  letter-spacing:.06em; text-transform: uppercase; color: var(--ink-soft);
  margin-bottom: 8px;
}
.field input[type="date"],
.field input[type="number"],
.field input[type="text"],
.field select{
  width:100%; font-family: var(--font-mono); font-size:1.05rem;
  color: var(--ink); background: var(--paper-sunken);
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 12px 14px; outline:none;
  transition: border-color .15s ease, background .15s ease;
}
.field input:focus, .field select:focus{
  border-color: var(--rust); background: var(--paper-raised);
}
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px){ .field-row{ grid-template-columns: 1fr; } }

.btn{
  appearance:none; border:none; cursor:pointer; font-family: var(--font-body);
  font-weight:600; font-size:.98rem; letter-spacing:.01em;
  background: var(--rust); color: var(--rust-ink);
  padding: 13px 26px; border-radius: var(--radius);
  box-shadow: 0 2px 0 var(--rust-deep);
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease;
}
.btn:hover{ background: var(--rust-deep); }
.btn:active{ transform: translateY(2px); box-shadow: none; }

/* result readout — like a digital caliper display */
.readout{
  margin-top: 26px; background: var(--rust-ink);
  border: 1px solid var(--rust-deep); border-radius: var(--radius);
  padding: 22px 24px; position:relative; overflow:hidden;
  display:none;
}
.readout.is-visible{ display:block; animation: pop .35s ease; }
@keyframes pop{ from{ opacity:0; transform: scale(.98); } to{ opacity:1; transform:none; } }
.readout::before{
  content:""; position:absolute; inset:0;
  background-image: repeating-linear-gradient(90deg, rgba(189,75,38,.12) 0 1px, transparent 1px 6px);
  pointer-events:none;
}
.readout .label{
  font-family: var(--font-mono); font-size:.68rem; letter-spacing:.14em;
  text-transform:uppercase; color: var(--brass-bright); margin-bottom:10px;
}
.readout .value{
  font-family: var(--font-mono); font-weight:600; font-size: clamp(1.8rem, 6vw, 2.8rem);
  color: #fbeee5; line-height:1.1;
}
:root[data-theme="dark"] .readout .value{ color:#fff3ec; }
.readout .value small{ font-size:.4em; font-weight:400; color: var(--brass-bright); margin-left:.4em; }
.readout .breakdown{
  margin-top: 14px; display:flex; gap: 22px; flex-wrap:wrap;
  font-family: var(--font-mono); font-size:.85rem; color: #e8c9b9;
}
.readout .breakdown b{ color:#fff3ec; font-size:1.05em; }

.explainer{ margin-top: 40px; }
.explainer h2{ margin-bottom:.6em; }
.explainer .ticks{ margin: 24px 0; }

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line); margin-top: 40px; padding: 32px 0 48px;
  font-size:.88rem; color: var(--ink-faint);
}
.site-footer .cols{ display:flex; justify-content:space-between; flex-wrap:wrap; gap: 16px; }
.site-footer a{ color: var(--ink-soft); text-decoration:none; }
.site-footer a:hover{ color: var(--rust); }
.site-footer nav{ display:flex; gap: 18px; flex-wrap:wrap; }

/* ---------- cookie banner ---------- */
.cookie-banner{
  position: fixed; left:16px; right:16px; bottom:16px; z-index:100;
  max-width: 560px; margin:0 auto;
  background: var(--paper-raised); border:1px solid var(--line-strong);
  border-radius: var(--radius); box-shadow: var(--shadow-pop);
  padding: 18px 20px; display:none;
}
.cookie-banner.is-visible{ display:block; animation: rise .4s ease; }
.cookie-banner p{ font-size:.88rem; margin:0 0 12px; color: var(--ink-soft); }
.cookie-banner .actions{ display:flex; gap:10px; justify-content:flex-end; }
.cookie-banner .btn-ghost{
  appearance:none; background:none; border:1px solid var(--line-strong);
  color: var(--ink-soft); font-family: var(--font-body); font-size:.85rem;
  padding: 9px 16px; border-radius: var(--radius); cursor:pointer;
}
.cookie-banner .btn{ padding: 9px 18px; font-size:.85rem; }

/* ---------- legal / static pages ---------- */
.legal{ padding: 56px 0 72px; }
.legal h2{ margin-top: 1.6em; }
.legal ul{ color: var(--ink-soft); }

/* ---------- utility ---------- */
.visually-hidden{
  position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap;
}