/* Lemmia Technologies SpA — design-system tokens and component classes.
   Source of truth for the brand's digital look. See readme.md and brand/. */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Public+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --color-bg: #f2f3f6;
  --color-surface: #e4e6ea;
  --color-text: #13161c;
  --color-accent: #005694;
  --color-accent-2: #479ee1;
  --color-divider: color-mix(in srgb, #13161c 18%, transparent);
  --color-rule: color-mix(in srgb, #13161c 85%, transparent);

  /* Tonal ramps — generated in OKLCH on one shared lightness scale, so the
     same step of any role matches the others in visual value. */
  --color-neutral-100: #f2f4f6;
  --color-neutral-200: #e4e6e9;
  --color-neutral-300: #d0d3d6;
  --color-neutral-400: #b2b6ba;
  --color-neutral-500: #93979c;
  --color-neutral-600: #75797e;
  --color-neutral-700: #585d62;
  --color-neutral-800: #3b4045;
  --color-neutral-900: #25292e;

  --color-accent-100: #e8f6ff;
  --color-accent-200: #ceeaff;
  --color-accent-300: #aad9ff;
  --color-accent-400: #7abdf5;
  --color-accent-500: #479ee1;
  --color-accent-600: #107fc5;
  --color-accent-700: #00619f;
  --color-accent-800: #004373;
  --color-accent-900: #002b4b;

  /* The palette is monochromatic by design: accent-2 is the same blue read one
     step lighter, kept as a role so secondary data series have a token. */
  --color-accent-2-100: #e8f6ff;
  --color-accent-2-200: #ceeaff;
  --color-accent-2-300: #aad9ff;
  --color-accent-2-400: #7abdf5;
  --color-accent-2-500: #479ee1;
  --color-accent-2-600: #107fc5;
  --color-accent-2-700: #00619f;
  --color-accent-2-800: #004373;
  --color-accent-2-900: #002b4b;

  --color-success: #0b7643;
  --color-warning: #af7c00;
  --color-error: #b63132;

  --font-heading: "Source Serif 4", Georgia, serif;
  --font-heading-weight: 600;
  --font-body: "Public Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;

  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;

  /* Elevation — used sparingly; the system separates with hairlines first. */
  --shadow-sm: 0 1px 2px color-mix(in srgb, #13161c 12%, transparent);
  --shadow-md: 0 3px 10px color-mix(in srgb, #13161c 14%, transparent);
  --shadow-lg: 0 12px 32px color-mix(in srgb, #13161c 20%, transparent);
}

/* ══════════════════════════════════════════════════════════════════════════
   Base
   ══════════════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-body); font-size: 15px; line-height: 1.6; font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  line-height: 1.14; letter-spacing: -0.005em; margin: 0 0 var(--space-2);
}
h1 { font-size: 44px; }
h2 { font-size: 33px; }
h3 { font-size: 25px; }
h4 { font-size: 20px; }
h5 { font-size: 16px; }
h6 {
  font-family: var(--font-body); font-weight: 600; font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-neutral-600);
}
p { margin: 0 0 var(--space-3); text-wrap: pretty; }
a { color: var(--color-accent); text-underline-offset: 3px; }
a:hover { color: var(--color-accent-900); }
img { display: block; max-width: 100%; }
figure { margin: 0; }
figcaption {
  font-family: var(--font-body); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; margin-top: var(--space-2); color: var(--color-neutral-600);
}
.text-muted { color: var(--color-neutral-600); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: var(--color-accent-200); }

/* — brand mark and lock-ups —
   12-unit box: two 5.5u cells with 1u gap, 1u stroke. The filled cell is
   always bottom-left. Below 24px use .solid. */
.mark {
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
  width: var(--mark-size, 40px); height: var(--mark-size, 40px); flex: none;
  gap: calc(var(--mark-size, 40px) * 0.0833);
}
.mark i { border: calc(var(--mark-size, 40px) * 0.0833) solid currentColor; }
.mark i:nth-child(3) { background: currentColor; }
.mark.solid i { border: 0; background: currentColor; }
.mark.two-tone i:nth-child(3) { background: var(--color-accent); }
.lockup { display: inline-flex; align-items: center; gap: calc(var(--mark-size, 40px) * 0.4); }
.lockup.stack { flex-direction: column; align-items: flex-start; gap: calc(var(--mark-size, 40px) * 0.5); }
.wordmark {
  font-family: var(--font-heading); font-weight: 600; line-height: 1;
  font-size: calc(var(--mark-size, 40px) * 0.78); letter-spacing: -0.005em;
}
.descriptor {
  font-family: var(--font-body); font-weight: 500; line-height: 1;
  font-size: calc(var(--mark-size, 40px) * 0.2); letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--color-neutral-700);
  margin-top: calc(var(--mark-size, 40px) * 0.16);
}
.product-name {
  font-family: var(--font-body); font-weight: 400; line-height: 1;
  font-size: calc(var(--mark-size, 40px) * 0.62); color: var(--color-neutral-700);
  margin-left: calc(var(--mark-size, 40px) * 0.24);
}

/* — rules and layout — */
.hr { height: 1px; border: 0; margin: var(--space-6) 0; background: var(--color-divider); }
.hr-strong { height: 1px; border: 0; margin: var(--space-6) 0; background: var(--color-rule); }
.grayscale { filter: grayscale(1) contrast(1.06); }
.cell-field {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px;
}
.cell-field span { aspect-ratio: 1; background: var(--color-neutral-300); }
.cell-field span.on { background: var(--color-text); }
.cell-field span.accent { background: var(--color-accent); }

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-body); font-weight: 600; font-size: 14px; line-height: 1.2;
  color: var(--color-text); background: transparent;
  border: 1px solid transparent; border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-4);
}
.btn svg { display: block; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-600); }
.btn-primary:active { background: var(--color-accent-800); }
.btn-secondary { border-color: var(--color-rule); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 13%, transparent); }
.btn-ghost { color: var(--color-accent); padding-inline: var(--space-1); }
.btn-ghost:hover { background: var(--color-accent-100); }
.btn-ghost:active { background: var(--color-accent-200); }
.btn-icon { width: 36px; height: 36px; padding: 0; }
.btn-block { width: 100%; margin-top: var(--space-2); }

/* — forms — */
.field > label {
  display: block; font-size: 11px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; margin-bottom: 6px; color: var(--color-neutral-700);
}
.input {
  width: 100%; min-height: 38px; padding: 7px 11px; font: inherit; font-size: 14px;
  color: var(--color-text); caret-color: var(--color-accent); background: #fff;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.input:hover { border-color: var(--color-neutral-500); }
.input:focus-visible { border-color: var(--color-accent); outline-offset: 0; }
textarea.input { min-height: 92px; resize: vertical; }
.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.radio input, .seg-opt input { position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none; }
.radio .dot { width: 15px; height: 15px; flex: none; border: 1px solid var(--color-neutral-500); }
.radio:hover .dot { border-color: var(--color-accent); }
.radio input:checked + .dot {
  border-color: var(--color-accent); background: var(--color-accent);
  box-shadow: inset 0 0 0 3px var(--color-bg);
}
.radio input:focus-visible + .dot { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.seg { display: inline-flex; border: 1px solid var(--color-divider); border-radius: var(--radius-md); }
.seg-opt { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; font-size: 13px; cursor: pointer; }
.seg-opt + .seg-opt { border-left: 1px solid var(--color-divider); }
.seg-opt:has(input:checked) { background: var(--color-accent); color: #fff; }
.seg-opt:not(:has(input:checked)):hover { background: color-mix(in srgb, var(--color-text) 6%, transparent); }
.seg-opt:has(input:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: -2px; }

/* — cards (cells) — */
.card {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-4); border: 1px solid var(--color-divider);
  border-radius: var(--radius-md); background: transparent;
}
.card-kicker {
  font-family: var(--font-body); font-size: 10px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent);
}
.card-title { font-family: var(--font-heading); font-weight: 600; font-size: 19px; line-height: 1.2; }
.card-body { margin: 0; font-size: 13.5px; color: var(--color-neutral-800); flex: 1; }
.card-meta {
  display: flex; align-items: center; gap: 8px; font-family: var(--font-mono);
  font-size: 11px; color: var(--color-neutral-600);
}
.elev-sm { box-shadow: var(--shadow-sm); }
.elev-md { box-shadow: var(--shadow-md); }
.elev-lg { box-shadow: var(--shadow-lg); }

/* — tags — */
.tag {
  display: inline-flex; align-items: center; font-size: 11px; font-weight: 500;
  letter-spacing: 0.04em; padding: 3px 10px; border-radius: var(--radius-sm);
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }
.tag-neutral { background: var(--color-neutral-200); color: var(--color-neutral-800); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent-800); }

/* — navigation — */
.nav {
  display: flex; align-items: center; gap: var(--space-6);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-rule);
}
.nav-brand { margin-right: auto; }
.nav a { color: inherit; text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a[aria-current='page'] { color: var(--color-accent); }

/* — tables — */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; font-size: 10.5px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-neutral-600);
  padding: var(--space-2); border-bottom: 1px solid var(--color-rule);
}
.table td { padding: var(--space-2); border-bottom: 1px solid var(--color-divider); }
.table td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }
.table tbody tr:hover { background: color-mix(in srgb, var(--color-text) 3%, transparent); }

/* — dialog — */
.dialog-backdrop {
  position: fixed; inset: 0; display: grid; place-items: center; padding: var(--space-4);
  background: color-mix(in srgb, var(--color-neutral-900) 55%, transparent);
}
.dialog {
  width: min(440px, 100%); display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-6); border-radius: var(--radius-lg);
  background: #fff; box-shadow: var(--shadow-lg);
}
.dialog-title { font-family: var(--font-heading); font-weight: 600; font-size: 22px; }
.dialog-body { font-size: 14px; color: var(--color-neutral-800); }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-2); }