/* Linfield Studio — site styles.
   Base resets and component styles from the design system, then page layout.
   All values come from css/tokens.css. */

/* ————— Base ————— */

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--surface-page);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--text-strong);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
}

p { margin: 0; text-wrap: pretty; }

a {
  color: var(--ink);
  text-decoration: none;
  transition: var(--transition-control);
}
a:hover { color: var(--jade-400); }

::selection { background: rgba(12, 90, 60, 0.16); }
footer ::selection,
#contact ::selection { background: rgba(76, 158, 123, 0.35); }

:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.ls-display {
  font-family: var(--font-serif-display);
  font-weight: 400;
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-tight);
  color: var(--text-strong);
}

.ls-eyebrow {
  display: block;
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: var(--weight-medium);
}

.ls-container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 640px) {
  .ls-container { padding: 0 var(--gutter); }
}

/* Hairline rules draw in on first view (js/main.js sets .is-drawn). */
.ls-rule {
  height: 1px;
  background: var(--border-hairline);
  border: 0;
  margin: 0;
  transform: scaleX(0);
  transform-origin: left;
}
.ls-rule.is-drawn {
  transform: scaleX(1);
  transition: transform var(--dur-3) var(--ease-standard);
}

/* ————— Components ————— */

.ls-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: 1;
  height: var(--control-h-md);
  padding: 0 var(--control-pad-x);
  border: 0;
  border-radius: var(--radius-control);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-control);
}
.ls-button:hover { background: var(--ink-900); color: var(--paper); transform: var(--lift-hover); }
.ls-button:active { transform: var(--press-scale); }

.ls-button--sm { height: 36px; padding: 0 var(--space-4); }

.ls-button--accent { background: var(--accent); color: var(--white); }
.ls-button--accent:hover { background: var(--accent-hover); color: var(--white); }
.ls-button--accent:active { background: var(--accent-press); }

.ls-button--full { width: 100%; }

.ls-field { display: grid; gap: var(--space-2); }

.ls-field label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-body);
  line-height: 1;
}

.ls-input,
.ls-textarea {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-body);
  background: var(--surface-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  padding: 0 var(--space-3);
  height: var(--control-h-md);
  width: 100%;
  transition: var(--transition-control);
}

.ls-textarea {
  height: auto;
  padding: var(--space-2) var(--space-3);
  line-height: var(--leading-normal);
  resize: vertical;
}

.ls-input::placeholder,
.ls-textarea::placeholder { color: var(--text-subtle); }

.ls-input:hover,
.ls-textarea:hover { border-color: var(--stone-300); }

.ls-input:focus-visible,
.ls-textarea:focus-visible { border-color: var(--border-focus); box-shadow: var(--focus-ring); }

/* Touch ergonomics. Input text below 16px makes iOS Safari zoom the
   viewport on focus (and leave it zoomed), and 36–40px controls sit under
   the 44px+ tap-target guidance. */
@media (hover: none) and (pointer: coarse) {
  .ls-input,
  .ls-textarea { font-size: var(--text-body); }
  .ls-input,
  .ls-button { height: var(--control-h-lg); }
  .ls-button--sm {
    /* Keep the header CTA visually small; extend only its tap area. */
    height: 36px;
    position: relative;
  }
  .ls-button--sm::before {
    content: "";
    position: absolute;
    inset: calc((36px - var(--control-h-lg)) / 2);
  }
}

/* ————— Header ————— */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--veil);
  -webkit-backdrop-filter: var(--blur-veil);
  backdrop-filter: var(--blur-veil);
  border-bottom: 1px solid var(--border-hairline);
}

.site-header__inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: fit-content;
  color: var(--ink);
}
.wordmark:hover { color: var(--ink); }

.wordmark__name {
  font-family: var(--font-wordmark);
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0;
}

.wordmark__studio {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 0 2px 0 4px;
  font-family: var(--font-sans);
  font-size: 7px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.header-cta {
  transition:
    opacity var(--dur-3) var(--ease-standard),
    transform var(--dur-3) var(--ease-standard);
}
.header-cta.is-hidden {
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
}

/* ————— Hero ————— */

.hero { padding: var(--space-10) 0 var(--space-9); }

.hero h1 {
  font-size: var(--text-display-1);
  margin: var(--space-5) 0 0;
  max-width: 16ch;
  text-wrap: balance;
}

.hero__lead {
  font-size: var(--text-lead);
  color: var(--text-muted);
  max-width: 54ch;
  margin-top: var(--space-5);
}

.hero .full-stop { color: var(--jade-400); }

@keyframes ls-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
[data-breathe] { animation: ls-breathe 6s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) {
  [data-breathe] { animation: none !important; }
}

/* ————— How we work ————— */

.practice { padding: var(--space-9) 0; }

.dictionary-entry {
  background: var(--sand-50);
  border-radius: var(--radius-surface);
  padding: var(--space-7);
  margin-top: var(--space-5);
  max-width: 640px;
}

@media (max-width: 640px) {
  .dictionary-entry { padding: var(--space-6); }
}

.dictionary-entry__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.dictionary-entry__headword {
  font-family: var(--font-serif-display);
  font-size: 32px;
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
  color: var(--text-strong);
}
.dictionary-entry__headword .full-stop { color: var(--jade-400); }

.dictionary-entry__pronunciation {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-subtle);
}

.dictionary-entry__etymology {
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: var(--space-3) 0 0;
}

.dictionary-entry__definition {
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 56ch;
  margin: var(--space-4) 0 0;
}

.dictionary-entry__ordinal {
  font-family: var(--font-mono);
  color: var(--text-subtle);
}

.practice__rows { margin-top: var(--space-7); }

.practice-row {
  display: grid;
  grid-template-columns: 56px 220px 1fr;
  gap: var(--space-5);
  align-items: baseline;
  padding: var(--space-5) 0;
}

.practice-row__number {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-subtle);
}

.practice-row__title {
  font-weight: var(--weight-medium);
  color: var(--text-strong);
}

.practice-row__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 56ch;
  text-wrap: pretty;
}

@media (max-width: 720px) {
  .practice-row { grid-template-columns: 56px 1fr; }
  .practice-row__desc { grid-column: 2; }
}

/* ————— Contact ————— */

.contact {
  background: var(--ink);
  padding: var(--space-10) 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-9);
}

@media (max-width: 900px) {
  .contact__grid { grid-template-columns: 1fr; gap: var(--space-7); }
}

.contact .ls-eyebrow { color: var(--stone-400); }

.contact h2 {
  font-size: var(--text-display-2);
  margin-top: var(--space-4);
  max-width: 14ch;
  color: var(--paper);
  text-wrap: balance;
}

.contact__note {
  color: var(--stone-300);
  margin-top: var(--space-5);
  max-width: 42ch;
}

.contact-card {
  background: var(--surface-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-2);
  padding: var(--space-6);
}

.contact-form { display: grid; gap: var(--space-4); }

/* Honeypot: hidden from people (and screen readers), present for bots. */
.ls-field--hp {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .contact-form__row { grid-template-columns: 1fr; }
}

/* ————— Footer ————— */

.site-footer {
  background: var(--ink);
  color: var(--stone-300);
  border-top: 1px solid rgba(251, 250, 248, 0.1);
}

.site-footer__inner {
  padding: var(--space-7) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-9);
  font-size: var(--text-xs);
}

.site-footer .wordmark {
  gap: 3px;
  color: var(--paper);
  flex-shrink: 0;
}
.site-footer .wordmark__name { font-size: 20px; }
.site-footer .wordmark__studio { padding: 0 1px 0 3px; color: var(--stone-300); }

.site-footer__spacer { flex: 1; }

.site-footer__colophon {
  display: grid;
  gap: 6px;
  justify-items: end;
  text-align: right;
}

.site-footer__set-in {
  font-family: var(--font-serif-display);
  font-style: italic;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--stone-300);
}

.site-footer__weight {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--stone-500);
}

.site-footer__year {
  font-family: var(--font-serif-display);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone-400);
}

@media (max-width: 560px) {
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-5);
  }
  .site-footer__spacer { display: none; }
  .site-footer__colophon { justify-items: start; text-align: left; }
}

/* ————— Print ————— */

[data-print-only] { display: none; }

@media print {
  [data-print-only] { display: inline; }
  [data-no-print] { display: none !important; }
  .site-header { position: static !important; background: #fff !important; }
  .contact, .site-footer { background: #fff !important; }
  .contact *, .site-footer * { color: #0E0D0C !important; }
}