/* Dotpad — reset, primitives, shared components */

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

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

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-body);
  font-size: var(--t-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--f-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0;
}

p {
  margin: 0;
}

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

a {
  color: var(--c-accent-text);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--c-ink);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--s-4);
  top: -100px;
  z-index: 100;
  background: var(--c-ink);
  color: var(--c-bg);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: top var(--t-mid) var(--ease);
}

.skip-link:focus {
  top: var(--s-4);
}

/* The signature surface: white paper, equally spaced black dots */
.dot-paper {
  background-color: var(--c-paper);
  background-image: radial-gradient(
    circle at center,
    var(--c-dot) var(--dot-radius),
    transparent var(--dot-radius)
  );
  background-size: var(--dot-gap) var(--dot-gap);
  background-position: 0 0;
}

.page {
  width: 100%;
  max-width: var(--w-page);
  margin-inline: auto;
  padding-inline: var(--s-5);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: var(--tap);
  padding: 0 var(--s-5);
  border: 1px solid transparent;
  border-radius: var(--r-full);
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--t-mid) var(--ease),
    color var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease),
    transform var(--t-fast) var(--ease);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--c-ink);
  color: var(--c-bg);
}

.btn--primary:hover {
  background: #1e293b;
}

.btn--accent {
  background: var(--c-accent);
  color: var(--c-ink);
}

.btn--accent:hover {
  background: #c26a05;
}

.btn--ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-border-strong);
}

.btn--ghost:hover {
  background: var(--c-surface);
  border-color: var(--c-ink);
}

.btn__icon {
  width: 18px;
  height: 18px;
  flex: none;
}

/* Small caps label */
.eyebrow {
  display: inline-block;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-ink-faint);
}

/* Handwritten annotation — used sparingly, it is an ornament not a UI font */
.scribble {
  font-family: var(--f-hand);
  font-size: var(--t-lg);
  color: var(--c-accent-text);
  line-height: 1.1;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}