/* Hallmark · base · bycamera landing
 * Reset + the parts of the Coinbase system that are identical across all
 * three options (button voice, focus rings, the mobile floor). Anything that
 * shapes the PAGE lives in the per-option stylesheet, never here.
 */

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

html, body {
  margin: 0;
  /* clip, never hidden — `hidden` on the root kills position:sticky */
  overflow-x: clip;
}

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

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

body {
  background: var(--color-canvas);
  color: var(--color-body);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, figure, blockquote, ol, ul, dl, dd { margin: 0; }
ol, ul { padding: 0; list-style: none; }

/* Display type is roman, weight 400, tight-tracked. That combination IS the
   brand — bolding it shifts the voice (DESIGN-coinbase § Don't). */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-ink);
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-title);
  /* long words break inside rather than push the layout wide at 320px */
  overflow-wrap: anywhere;
  min-width: 0;
}

img, svg { display: block; max-width: 100%; height: auto; }

/* logo-lockup-ink.png e logo-lockup-full.png são OPACOS, de fundo branco —
   não têm canal alfa (conferido: canto #FDFDFD / #FEFEFE, A=255). Sobre o
   canvas branco isso passa despercebido, mas dentro de uma nav translúcida
   que cruza uma faixa escura o retângulo branco aparece em volta da marca.
   `multiply` resolve sem mexer no arquivo: sobre qualquer fundo claro o
   branco vira no-op e o texto escuro permanece.
   NUNCA usar esta classe sobre superfície escura — ali a arte correta é
   logo-lockup-light.png, a única com alfa real. */
.lockup-ink { mix-blend-mode: multiply; }

a { color: inherit; text-decoration: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--color-primary); color: var(--color-on-primary); }

/* Every number renders in mono, tabular. */
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

/* — Focus. Appears instantly; never transitioned. ——————————————— */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}
.on-dark :focus-visible,
.is-dark :focus-visible { outline-color: var(--color-focus-dark); }

.skip {
  position: absolute;
  left: var(--space-md);
  top: calc(var(--space-md) * -6);
  z-index: var(--z-top);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-on-dark);
  border-radius: var(--radius-sm);
  font-size: var(--text-body-sm);
  transition: top var(--dur-short) var(--ease-out);
}
.skip:focus-visible { top: var(--space-md); }

/* — Container ————————————————————————————————————————————— */
.wrap {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

/* — Buttons. Pill (100px) is non-negotiable in this system. ———————— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  /* affordances are single-line objects — let the parent reflow, not the label */
  white-space: nowrap;
  font-family: var(--font-body);
  font-size: var(--text-button);
  font-weight: 600;
  line-height: 1.15;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-pill);
  transition:
    background-color var(--dur-micro) var(--ease-out),
    border-color var(--dur-micro) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn--primary:hover { background: var(--color-primary-active); }

.btn--lg { min-height: 56px; padding: var(--space-md) var(--space-xl); }

.btn--soft { background: var(--color-surface-strong); color: var(--color-ink); }
.btn--soft:hover { background: var(--color-hairline); }

.btn--dark { background: var(--color-surface-dark-elevated); color: var(--color-on-dark); }
.btn--dark:hover { background: var(--color-surface-dark-hover); }

.btn--outline-dark {
  background: transparent;
  color: var(--color-on-dark);
  border: var(--rule-hair) solid var(--color-on-dark-soft);
  padding: 11px var(--space-md);
}
.btn--outline-dark:hover { border-color: var(--color-on-dark); }

.btn--text { color: var(--color-primary); padding-inline: 0; min-height: 44px; }
.btn--text:hover { color: var(--color-primary-active); }

@media (pointer: coarse) {
  .btn { min-height: 48px; }
}

/* — Badge pill. Section labels, status chips. —————————————————— */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-surface-strong);
  color: var(--color-ink);
  font-size: var(--text-caption-str);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge--on-dark { background: var(--color-surface-dark-elevated); color: var(--color-on-dark); }
.badge--live { background: transparent; border: var(--rule-hair) solid var(--color-hairline-dark); color: var(--color-on-dark-soft); }

.badge__dot {
  width: 6px; height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  flex: none;
}

/* — Prose ————————————————————————————————————————————————— */
.lede { font-size: clamp(1.0625rem, 0.98rem + 0.4vw, 1.25rem); color: var(--color-body); max-width: 46ch; }
.prose { max-width: var(--measure); }
.muted { color: var(--color-muted); }

/* Illustrative UI is always labelled as such — nothing on these pages
   pretends to be a real measurement or a real customer record. */
.exemplo {
  font-family: var(--font-mono);
  font-size: var(--text-caption-str);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* — Page-load orchestration. One sequence, staggered by DOM index. ——— */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  animation: reveal var(--dur-long) var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 60ms);
}
@keyframes reveal { to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
  .reveal { animation: reveal-reduced 150ms linear forwards; }
  @keyframes reveal-reduced { to { opacity: 1; transform: none; } }
}