/* =========================================================================
   site.css: Small layer of hand-written CSS that Tailwind utilities
   don't express cleanly: skip link, dropzone visuals, spinner, focus
   enhancement, error styling, prose, and print.
   ========================================================================= */

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

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background: rgb(var(--color-bg));
  color: rgb(var(--color-text));
  line-height: 1.6;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: rgb(var(--color-brand-600));
  color: rgb(var(--color-text-inverse));
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  z-index: 100;
  transform: translateY(-150%);
  transition: transform var(--duration-fast) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid rgb(var(--color-text-inverse));
  outline-offset: 2px;
}

/* ---------- Focus rings (supplement Tailwind's) ---------- */
:focus-visible {
  outline: 2px solid rgb(var(--color-focus));
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

/* ---------- Dropzone ---------- */
.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem 1rem;
  border: 2px dashed rgb(var(--color-border-strong));
  border-radius: var(--radius-lg);
  background: rgb(var(--color-bg-muted));
  color: rgb(var(--color-text-muted));
  text-align: center;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease);
}
.dropzone:hover,
.dropzone:focus-within {
  border-color: rgb(var(--color-brand-500));
  background: rgb(var(--color-bg));
}
.dropzone.is-dragover {
  border-color: rgb(var(--color-brand-500));
  background: rgb(var(--color-brand-50));
  color: rgb(var(--color-text));
}
.dropzone__hint {
  font-size: 0.875rem;
}
.dropzone__browse {
  color: rgb(var(--color-brand-600));
  font-weight: 600;
  text-decoration: underline;
}

/* ---------- File chip ---------- */
.file-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgb(var(--color-bg));
  border: 1px solid rgb(var(--color-border));
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.file-chip__name {
  font-weight: 500;
  word-break: break-all;
}
.file-chip__size {
  color: rgb(var(--color-text-muted));
  font-size: 0.875rem;
  margin-left: auto;
}
.file-chip__remove {
  background: transparent;
  border: 0;
  padding: 0.25rem 0.5rem;
  color: rgb(var(--color-text-muted));
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  line-height: 1;
}
.file-chip__remove:hover,
.file-chip__remove:focus-visible {
  color: rgb(var(--color-danger));
  background: rgb(var(--color-bg-subtle));
}

/* ---------- Spinner ---------- */
.spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: -0.125em;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- Field error ---------- */
.field-error {
  color: rgb(var(--color-danger));
  font-size: 0.875rem;
  margin-top: 0.25rem;
  min-height: 1.25rem;
}
.is-invalid {
  border-color: rgb(var(--color-danger)) !important;
}
.is-invalid:focus {
  --tw-ring-color: rgb(var(--color-danger));
}

/* ---------- Form-level error banner ---------- */
.form-error {
  padding: 0.75rem 1rem;
  background: color-mix(in srgb, rgb(var(--color-danger)) 10%, rgb(var(--color-bg)));
  border: 1px solid color-mix(in srgb, rgb(var(--color-danger)) 30%, rgb(var(--color-border)));
  border-radius: var(--radius-md);
  color: rgb(var(--color-danger));
  font-size: 0.875rem;
}
.form-error ul {
  margin: 0.25rem 0 0;
  padding-left: 1.25rem;
}

/* ---------- Live indicator (delete-pages) ---------- */
.live-indicator.is-valid {
  color: rgb(var(--color-success));
}
.live-indicator.is-invalid {
  color: rgb(var(--color-danger));
}

/* ---------- Placement grid (watermark) ---------- */
.placement-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}
.placement-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0.5rem;
  background: rgb(var(--color-bg));
  border: 1px solid rgb(var(--color-border));
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgb(var(--color-text-muted));
  cursor: pointer;
  text-align: center;
  min-height: 3rem;
  transition: border-color var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease),
              color var(--duration-fast) var(--ease);
}
.placement-card:hover {
  border-color: rgb(var(--color-brand-400));
  color: rgb(var(--color-text));
}
.placement-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.placement-card:has(input[type="radio"]:checked) {
  border-color: rgb(var(--color-brand-600));
  background: rgb(var(--color-brand-50));
  color: rgb(var(--color-brand-700));
  box-shadow: 0 0 0 1px rgb(var(--color-brand-600)) inset;
}

/* ---------- Reorderable list (merge) ---------- */
.reorder-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.reorder-item {
  cursor: grab;
  user-select: none;
}
.reorder-item.is-dragging {
  opacity: 0.5;
}
.reorder-item.is-drop-target {
  border-color: rgb(var(--color-brand-500));
  background: rgb(var(--color-brand-50));
}

/* ---------- Prose (legal pages) ---------- */
.prose {
  max-width: 70ch;
}
.prose h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  color: rgb(var(--color-text));
}
.prose h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 1.25rem;
  margin-bottom: 0.25rem;
  color: rgb(var(--color-text));
}
.prose p,
.prose ul,
.prose ol {
  margin-bottom: 0.875rem;
  color: rgb(var(--color-text));
}
.prose ul,
.prose ol {
  padding-left: 1.5rem;
}
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li {
  margin-bottom: 0.25rem;
}
.prose a {
  color: rgb(var(--color-brand-600));
  text-decoration: underline;
  text-underline-offset: 2px;
}
.prose a:hover {
  color: rgb(var(--color-brand-700));
}
.prose strong {
  color: rgb(var(--color-text));
  font-weight: 600;
}
.prose code {
  background: rgb(var(--color-bg-subtle));
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 0.875em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ---------- FAQ accordion ---------- */
.faq-item {
  border: 1px solid rgb(var(--color-border));
  border-radius: var(--radius-md);
  margin-bottom: 0.5rem;
  background: rgb(var(--color-bg));
}
.faq-item summary {
  padding: 0.875rem 1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  line-height: 1;
  color: rgb(var(--color-text-muted));
  transition: transform var(--duration-fast) var(--ease);
}
.faq-item[open] summary::after {
  content: "−";
}
.faq-item[open] summary {
  border-bottom: 1px solid rgb(var(--color-border));
}
.faq-item__body {
  padding: 0.875rem 1rem 1rem;
  color: rgb(var(--color-text));
}

/* ---------- Reduced motion ---------- */
@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;
  }
}

/* ---------- Print ---------- */
@media print {
  .no-print,
  header,
  footer,
  .skip-link {
    display: none !important;
  }
  body {
    color: #000;
    background: #fff;
  }
  .prose {
    max-width: none;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
}