/* ═══════════════════════════════════════════════════════════════════════════
   csv-dropzone.css — drag-and-drop bulk import target
   Pairs with csv-dropzone.js. Uses the shared tokens from styles.css only,
   so light and dark themes follow automatically.
   ═══════════════════════════════════════════════════════════════════════════ */

.csv-dropzone {
  --csvdz-border: var(--border-strong);
  --csvdz-bg: var(--surface-1);
  --csvdz-ring: var(--accent);

  position: relative;
  display: block;
  border: 1.5px dashed var(--csvdz-border);
  border-radius: 12px;
  background: var(--csvdz-bg);
  cursor: pointer;
  outline: none;
  transition: border-color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.csv-dropzone [hidden] {
  display: none !important;
}

.csv-dropzone:hover {
  --csvdz-border: var(--accent-border);
}

.csv-dropzone:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft), 0 0 0 1px var(--csvdz-ring);
}

/* ── empty state ─────────────────────────────────────────────── */
.csvdz-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  padding: 24px 18px 20px;
}

.csvdz-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 6px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.18s ease;
}

.csvdz-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.csvdz-sub {
  font-size: 0.82rem;
  color: var(--text-sec);
}

.csvdz-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.csvdz-hint {
  margin-top: 6px;
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* ── dragging a file over ────────────────────────────────────── */
.csv-dropzone.is-dragover {
  --csvdz-border: var(--accent);
  --csvdz-bg: var(--accent-soft);
  border-style: solid;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.csv-dropzone.is-dragover .csvdz-icon {
  transform: translateY(-3px);
  background: var(--surface);
}

.csvdz-drop-note {
  display: none;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
}

.csv-dropzone.is-dragover .csvdz-sub {
  display: none;
}

.csv-dropzone.is-dragover .csvdz-drop-note {
  display: inline;
}

/* children must not steal drag events from the zone */
.csv-dropzone.is-dragover .csvdz-shell {
  pointer-events: none;
}

/* ── file card ───────────────────────────────────────────────── */
.csvdz-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 12px 12px 14px;
}

.csvdz-ext {
  flex: none;
  display: grid;
  place-items: center;
  width: 42px;
  height: 48px;
  border-radius: 6px 12px 6px 6px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.csvdz-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.csvdz-name {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.csvdz-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.csvdz-pill {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-sec);
  font-size: 0.72rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.csvdz-pill--muted {
  background: transparent;
  color: var(--text-muted);
  font-weight: 500;
}

.csvdz-pill--pos {
  background: var(--pos-soft);
  color: var(--pos);
  box-shadow: inset 0 0 0 1px var(--pos-border);
}

.csvdz-pill--warn {
  background: var(--warn-soft);
  color: var(--warn);
  box-shadow: inset 0 0 0 1px var(--warn-border);
}

.csvdz-pill--neg {
  background: var(--neg-soft);
  color: var(--neg);
  box-shadow: inset 0 0 0 1px var(--neg-border);
}

.csvdz-actions {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.csvdz-btn {
  height: 30px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-sec);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.csvdz-btn:hover {
  border-color: var(--accent-border);
  color: var(--accent);
}

.csvdz-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.csvdz-btn--icon {
  width: 30px;
  padding: 0;
  display: grid;
  place-items: center;
}

.csvdz-btn--icon:hover {
  border-color: var(--neg-border);
  color: var(--neg);
  background: var(--neg-soft);
}

/* ── status line ─────────────────────────────────────────────── */
.csvdz-msg {
  padding: 0 14px 12px 68px;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.csvdz-msg:empty {
  display: none;
}

.csv-dropzone.is-error .csvdz-card[hidden] + .csvdz-msg {
  padding: 0 18px 16px;
  text-align: center;
}

/* ── states ──────────────────────────────────────────────────── */
.csv-dropzone.is-ready,
.csv-dropzone.is-warn,
.csv-dropzone.is-error,
.csv-dropzone.is-reading {
  border-style: solid;
  --csvdz-bg: var(--surface);
}

.csv-dropzone.is-ready {
  --csvdz-border: var(--pos-border);
}
.csv-dropzone.is-ready .csvdz-msg {
  color: var(--pos);
}

.csv-dropzone.is-warn {
  --csvdz-border: var(--warn-border);
}
.csv-dropzone.is-warn .csvdz-ext {
  background: var(--warn-soft);
  border-color: var(--warn-border);
  color: var(--warn);
}
.csv-dropzone.is-warn .csvdz-msg {
  color: var(--warn);
}

.csv-dropzone.is-error {
  --csvdz-border: var(--neg-border);
}
.csv-dropzone.is-error .csvdz-ext {
  background: var(--neg-soft);
  border-color: var(--neg-border);
  color: var(--neg);
}
.csv-dropzone.is-error .csvdz-msg {
  color: var(--neg);
  font-weight: 500;
}

.csv-dropzone.is-reading {
  cursor: progress;
}
.csv-dropzone.is-reading .csvdz-ext {
  background: linear-gradient(90deg, var(--accent-soft) 0%, var(--surface-2) 50%, var(--accent-soft) 100%);
  background-size: 200% 100%;
  animation: csvdz-shimmer 1.1s linear infinite;
}

@keyframes csvdz-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ── below-zone helper row (template link) ───────────────────── */
.csvdz-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.csvdz-foot button {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 520px) {
  .csvdz-card {
    flex-wrap: wrap;
  }
  .csvdz-actions {
    width: 100%;
    justify-content: flex-end;
  }
  .csvdz-msg {
    padding-left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .csv-dropzone,
  .csvdz-icon,
  .csvdz-btn {
    transition: none;
  }
  .csv-dropzone.is-dragover .csvdz-icon {
    transform: none;
  }
  .csv-dropzone.is-reading .csvdz-ext {
    animation: none;
  }
}