/* Hallmark · genre: editorial · macrostructure: Letter · theme: custom (ink/grey/white zero-chroma)
 * enrichment: none · nav: N1 · footer: Ft4 */

html, body { overflow-x: clip; }

:root {
  --ink:          oklch(9% 0 0);
  --ink-2:        oklch(19% 0 0);
  --muted:        oklch(44% 0 0);
  --subtle:       oklch(62% 0 0);
  --faint:        oklch(76% 0 0);
  --paper:        oklch(98.5% 0 0);
  --paper-2:      oklch(96.5% 0 0);
  --paper-3:      oklch(93% 0 0);
  --rule:         oklch(89% 0 0);
  --rule-mid:     oklch(80% 0 0);
  --wash:         oklch(91% 0 0);
  --wash-text:    oklch(10% 0 0);
  --wash-muted:   oklch(44% 0 0);
  --wash-rule:    oklch(82% 0 0);
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --dur-short:    220ms;
  --font-display: 'Libre Caslon Text', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-label:   'Inter', system-ui, sans-serif;
  --px-page:      80px;
}

::selection { background-color: var(--ink); color: var(--paper); }

body {
  background-color: var(--paper);
  color: var(--ink-2);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Nav ── */
.nav-root {
  background: oklch(98.5% 0 0 / 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav-link {
  font-family: var(--font-label);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted);
  transition: color var(--dur-short) var(--ease-out);
}
.nav-link:hover  { color: var(--ink); }
.nav-link.active { color: var(--ink); font-weight: 600; }
.nav-link:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; border-radius: 1px; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  cursor: pointer;
  transition: background var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out),
              border-color var(--dur-short) var(--ease-out);
}
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.btn:active { opacity: 0.82; }
.btn-ink {
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink); padding: 15px 36px;
}
.btn-ink:hover { background: transparent; color: var(--ink); }
.btn-ink:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-ink-sm {
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink); padding: 12px 24px;
}
.btn-ink-sm:hover { background: transparent; color: var(--ink); }
.btn-ghost {
  background: transparent; color: var(--muted);
  border: 1px solid var(--rule-mid); padding: 15px 36px;
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

/* ── Form fields ── */
.field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field-label {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--subtle);
}
.field-input {
  font-family: var(--font-body);
  font-size: 16px; font-weight: 300;
  color: var(--ink-2);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--rule-mid);
  padding: 10px 0 12px;
  width: 100%;
  outline: none;
  transition: border-color var(--dur-short) var(--ease-out);
  -webkit-appearance: none;
}
.field-input::placeholder { color: var(--faint); }
.field-input:focus { border-color: var(--ink); }
.field-input:focus-visible { outline: none; border-color: var(--ink); box-shadow: 0 1px 0 0 var(--ink); }

textarea.field-input {
  resize: none;
  line-height: 1.7;
  padding-top: 10px;
  border-bottom: 1px solid var(--rule-mid);
}

select.field-input {
  cursor: pointer;
  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='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 24px;
  appearance: none;
}

/* ── Radio chips ── */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.radio-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
}
.radio-option label {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--rule-mid);
  padding: 9px 18px;
  cursor: pointer;
  transition: border-color var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out),
              background var(--dur-short) var(--ease-out);
  user-select: none;
}
.radio-option label:hover { border-color: var(--ink); color: var(--ink); }
.radio-option input[type="radio"]:checked + label {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.radio-option input[type="radio"]:focus-visible + label {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

/* ── Eyebrow ── */
.eyebrow {
  font-family: var(--font-label);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--subtle);
}

/* ── Reveal ── */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 767px) {
  :root { --px-page: 24px; }
}