/* Reset, typography, form controls and shared primitives. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1rem/1.5 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body:has(dialog[open]) {
  overflow: hidden;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}
ul,
ol {
  padding: 0;
  list-style: none;
}
img,
svg {
  display: block;
  max-width: 100%;
}
button,
input,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
a {
  color: inherit;
}
[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.muted {
  color: var(--muted);
}
.center {
  text-align: center;
  margin-top: 1rem;
}

.skip-link {
  position: fixed;
  left: 0.75rem;
  top: -4rem;
  z-index: 100;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-contrast);
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus {
  top: 0.75rem;
}

.link {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}
.link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--text);
  font-weight: 500;
  font-size: 0.9375rem;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color 0.15s,
    border-color 0.15s,
    transform 0.15s var(--ease);
}
.btn:hover:not(:disabled) {
  background: var(--surface-2);
}
.btn:active:not(:disabled) {
  transform: scale(0.97);
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}
.btn--primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.btn--ghost {
  background: transparent;
}
.btn--danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn--danger:hover:not(:disabled) {
  filter: brightness(0.92);
  background: var(--danger);
}
.btn--sm {
  min-height: 2.25rem;
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: inherit;
  text-decoration: none;
  transition: background-color 0.15s;
}
.icon-btn:hover {
  background: var(--surface-2);
}

/* ---------- Form controls ---------- */
.field__input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--text);
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
.field__input::placeholder {
  color: var(--muted);
}
.field__input:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field__select {
  appearance: none;
  padding-right: 2.25rem;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position:
    calc(100% - 1.15rem) 55%,
    calc(100% - 0.8rem) 55%;
  background-size: 0.35rem 0.35rem;
  background-repeat: no-repeat;
}

/* ---------- Skeletons & spinner ---------- */
.skeleton {
  border-radius: var(--radius-sm);
  background: linear-gradient(
      100deg,
      var(--surface-2) 30%,
      var(--border) 50%,
      var(--surface-2) 70%
    )
    0 0 / 200% 100%;
  animation: shimmer 1.4s linear infinite;
}
.skeleton--cover {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
}
.skeleton--line {
  height: 0.875rem;
  margin-top: 0.625rem;
}
.skeleton--short {
  width: 60%;
}
@keyframes shimmer {
  to {
    background-position: -200% 0;
  }
}

.spinner {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@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;
  }
}