/* Hallmark · shared base — Teman Digital · theme: Cobalt · design-system: design.md · designed-as-app
 * Base rules + CTA voice + reveal engine shared by landing.css / builder.css / auth.css.
 * Loads after tokens.css, before the page stylesheet. */

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

html { overflow-x: clip; }
body { overflow-x: clip; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-style: normal;
  letter-spacing: var(--tracking-display);
  line-height: 1.1;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  min-width: 0;
}

p { margin: 0; }
img { max-width: 100%; height: auto; }

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

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

/* Focus — instant, visible, everywhere. Never animated. */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: inherit;
}

/* Alpine: hide bound elements until Alpine initialises. */
[x-cloak] { display: none !important; }

/* ── Mono label register — the single outlier role ── */
.label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-muted);
}

kbd {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: var(--space-3xs) var(--space-xs);
  border: 1px solid var(--color-rule-2);
  border-bottom-width: 2px;
  border-radius: var(--radius-btn);
  color: var(--color-neutral);
  background: var(--color-paper);
}

/* ── CTA voice (design.md) — one cobalt signal per view ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 2.75rem;
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-btn);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out),
              border-color var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out),
              transform 100ms var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}
@media (hover: hover) {
  .btn--primary:hover:not([disabled]) { background: var(--color-accent-strong); transform: translateY(-1px); }
}
/* Cobalt ring on a cobalt fill would vanish — flip the ring to ink. */
.btn--primary:focus-visible { outline-color: var(--color-ink); }

.btn--outline {
  background: var(--color-paper);
  color: var(--color-ink);
  border-color: var(--color-rule-strong);
}
@media (hover: hover) {
  .btn--outline:hover:not([disabled]) { border-color: var(--color-accent); color: var(--color-accent); }
}

/* On graphite surfaces the primary flips to paper. */
.surface-graphite .btn--primary {
  background: var(--color-paper);
  color: var(--color-ink);
}
@media (hover: hover) {
  .surface-graphite .btn--primary:hover:not([disabled]) { background: var(--color-paper-2); }
}
.surface-graphite .btn--primary:focus-visible { outline-color: var(--color-paper-on-ink); }

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  min-height: 2.75rem;
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
  white-space: nowrap;
  transition: color var(--dur-short) var(--ease-out);
}
@media (hover: hover) {
  .cta-link:hover { color: var(--color-accent); }
}

/* ── Dark beat — the page's single graphite surface ── */
.surface-graphite {
  background: var(--color-graphite);
  color: var(--color-paper-on-ink);
}
.surface-graphite h1, .surface-graphite h2, .surface-graphite h3 { color: var(--color-paper-on-ink); }

/* ── Reveal engine — fade + 10px rise, one-shot, IO adds .is-in ── */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
  transition-delay: calc(var(--i, 0) * 70ms);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ── Generation stream (tdStream) — lives on graphite surfaces ── */
.stream-line { min-height: 1.5em; overflow-wrap: anywhere; }
.stream-line.dim { color: var(--color-muted-on-ink); }
.stream-line.str { color: var(--color-paper-on-ink); }
.stream-line.ok { color: var(--color-accent-on-ink); margin-top: var(--space-xs); }
.caret {
  display: inline-block;
  width: 1ch;
  color: var(--color-accent-on-ink);
  animation: blink 1s steps(2, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ── Inline spinner — functional loader ── */
.spinner {
  width: 1em;
  height: 1em;
  flex: none;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-inline-end-color: transparent;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Reduced motion — static and fully visible ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .spinner { animation: spin 1.2s linear infinite !important; }
}