/*! importly — drop-in CSV/spreadsheet header mapper. Theme via --importly-accent. */

:root {
  --importly-accent:        #059669;
  --importly-accent-soft:   rgba(5, 150, 105, 0.10);
  --importly-accent-fg:     #ffffff;

  --importly-bg:            #ffffff;
  --importly-bg-elevated:   #fafafa;
  --importly-bg-code:       #f4f4f5;
  --importly-fg:            #09090b;
  --importly-fg-muted:      #52525b;
  --importly-fg-faint:      #a1a1aa;
  --importly-border:        #e4e4e7;
  --importly-border-strong: #d4d4d8;
  --importly-warn:          #b45309;
  --importly-warn-soft:     rgba(180, 83, 9, 0.10);
  --importly-danger:        #b91c1c;
  --importly-danger-soft:   rgba(185, 28, 28, 0.10);

  --importly-radius:        10px;
  --importly-radius-sm:     6px;
  --importly-font-sans:     -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --importly-font-mono:     "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --importly-accent:        #34d399;
    --importly-accent-soft:   rgba(52, 211, 153, 0.14);
    --importly-accent-fg:     #052e1c;

    --importly-bg:            #0a0a0b;
    --importly-bg-elevated:   #18181b;
    --importly-bg-code:       #18181b;
    --importly-fg:            #fafafa;
    --importly-fg-muted:      #a1a1aa;
    --importly-fg-faint:      #71717a;
    --importly-border:        #27272a;
    --importly-border-strong: #3f3f46;
    --importly-warn:          #fbbf24;
    --importly-warn-soft:     rgba(251, 191, 36, 0.14);
    --importly-danger:        #f87171;
    --importly-danger-soft:   rgba(248, 113, 113, 0.14);
  }
}

/* Hide the file input but keep it in the DOM so the form posts it. */
.im-input-hidden {
  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;
}

.im-root {
  font-family: var(--importly-font-sans);
  color: var(--importly-fg);
  width: 100%;
}
.im-root *, .im-root *::before, .im-root *::after { box-sizing: border-box; }

/* [hidden] must win over display: flex on .im-drop and friends. */
.im-root [hidden] { display: none !important; }

.im-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 3rem 1.5rem;
  border: 2px dashed var(--importly-border-strong);
  border-radius: var(--importly-radius);
  background: var(--importly-bg-elevated);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  outline: none;
}
.im-drop:hover,
.im-drop:focus-visible {
  border-color: var(--importly-accent);
  background: var(--importly-accent-soft);
}
.im-drop.is-dragover {
  border-color: var(--importly-accent);
  border-style: solid;
  background: var(--importly-accent-soft);
  color: var(--importly-accent);
}
.im-drop__icon {
  width: 44px;
  height: 44px;
  color: var(--importly-fg-faint);
  transition: color 0.15s;
}
.im-drop:hover .im-drop__icon,
.im-drop:focus-visible .im-drop__icon,
.im-drop.is-dragover .im-drop__icon {
  color: var(--importly-accent);
}
.im-drop__icon svg { width: 100%; height: 100%; display: block; }
.im-drop__primary {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--importly-fg);
}
.im-drop__pick {
  appearance: none;
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--importly-accent);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.im-drop__pick:hover { filter: brightness(0.92); }
.im-drop__hint {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--importly-fg-faint);
}

.im-map {
  border: 1px solid var(--importly-border);
  border-radius: var(--importly-radius);
  background: var(--importly-bg);
  overflow: hidden;
}

.im-file {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1.125rem;
  border-bottom: 1px solid var(--importly-border);
  background: var(--importly-bg-elevated);
}
.im-file__icon {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  color: var(--importly-accent);
}
.im-file__info {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.0625rem;
}
.im-file__info strong {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.im-file__info span {
  font-size: 0.8125rem;
  color: var(--importly-fg-muted);
}
.im-file__change {
  appearance: none;
  background: transparent;
  border: 1px solid var(--importly-border-strong);
  border-radius: var(--importly-radius-sm);
  padding: 0.4rem 0.75rem;
  font: 600 0.8125rem var(--importly-font-sans);
  color: var(--importly-fg);
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s, background 0.12s;
}
.im-file__change:hover {
  color: var(--importly-accent);
  border-color: var(--importly-accent);
  background: var(--importly-accent-soft);
}

.im-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.875rem 1.125rem;
  border-bottom: 1px solid var(--importly-border);
}
.im-summary:empty { display: none; }
.im-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  border: 1px solid transparent;
}
.im-pill--ok {
  background: var(--importly-accent-soft);
  color: var(--importly-accent);
  border-color: var(--importly-accent-soft);
}
.im-pill--info {
  background: var(--importly-bg-code);
  color: var(--importly-fg-muted);
  border-color: var(--importly-border);
}
.im-pill--warn {
  background: var(--importly-warn-soft);
  color: var(--importly-warn);
  border-color: var(--importly-warn-soft);
}

.im-table-wrap {
  overflow-x: auto;
}
.im-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.im-th {
  text-align: left;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.6875rem;
  color: var(--importly-fg-muted);
  padding: 0.625rem 1.125rem;
  border-bottom: 1px solid var(--importly-border);
  background: var(--importly-bg);
}
.im-th--target { width: 32%; }
.im-th--source { width: 34%; }
.im-th--sample { width: 34%; }
.im-row {
  border-bottom: 1px solid var(--importly-border);
  transition: background 0.12s;
}
.im-row:last-child { border-bottom: none; }
.im-row.is-mapped { background: color-mix(in srgb, var(--importly-accent-soft) 40%, transparent); }
.im-row.is-missing { background: var(--importly-danger-soft); }
.im-row > td {
  padding: 0.75rem 1.125rem;
  vertical-align: middle;
}

.im-target {
  display: flex;
  flex-direction: column;
  gap: 0.1875rem;
}
.im-target__label {
  font-weight: 600;
  font-size: 0.9375rem;
}
.im-target__req {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--importly-danger);
}
.im-row.is-mapped .im-target__req { color: var(--importly-fg-muted); }
.im-target__type {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--importly-font-mono);
  font-size: 0.75rem;
  color: var(--importly-fg-muted);
  background: var(--importly-bg-code);
  border: 1px solid var(--importly-border);
  border-radius: 4px;
  padding: 0.05rem 0.375rem;
}
.im-target__desc {
  font-size: 0.8125rem;
  color: var(--importly-fg-muted);
  margin-top: 0.125rem;
}

.im-select-wrap {
  position: relative;
  display: block;
  max-width: 320px;
}
.im-select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border: 1px solid var(--importly-border-strong);
  border-radius: var(--importly-radius-sm);
  background: var(--importly-bg);
  color: var(--importly-fg);
  font: 0.875rem var(--importly-font-sans);
  cursor: pointer;
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.im-select:focus-visible {
  border-color: var(--importly-accent);
  box-shadow: 0 0 0 3px var(--importly-accent-soft);
}
.im-row.is-missing .im-select {
  border-color: var(--importly-danger);
}
.im-select__chev {
  position: absolute;
  right: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 8px;
  color: var(--importly-fg-muted);
  pointer-events: none;
}

.im-sample {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
}
.im-sample__val {
  display: inline-block;
  font-family: var(--importly-font-mono);
  font-size: 0.75rem;
  color: var(--importly-fg);
  background: var(--importly-bg-code);
  border: 1px solid var(--importly-border);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.im-sample__empty {
  font-size: 0.8125rem;
  color: var(--importly-fg-faint);
  font-style: italic;
}

.im-unused {
  padding: 0.625rem 1.125rem 0.875rem;
  border-top: 1px solid var(--importly-border);
  background: var(--importly-bg-elevated);
  font-size: 0.8125rem;
}
.im-unused > summary {
  cursor: pointer;
  color: var(--importly-fg-muted);
  font-weight: 500;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.im-unused > summary::-webkit-details-marker { display: none; }
.im-unused > summary::before {
  content: "▸";
  font-size: 0.625rem;
  transition: transform 0.12s;
}
.im-unused[open] > summary::before { transform: rotate(90deg); }
.im-unused > summary:hover { color: var(--importly-fg); }
.im-unused ul {
  margin: 0.625rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.im-unused li code {
  display: inline-block;
  font-family: var(--importly-font-mono);
  font-size: 0.75rem;
  background: var(--importly-bg);
  border: 1px solid var(--importly-border);
  border-radius: 4px;
  padding: 0.125rem 0.5rem;
  color: var(--importly-fg-muted);
}

.im-error {
  margin-top: 0.75rem;
  padding: 0.625rem 0.875rem;
  border-radius: var(--importly-radius-sm);
  background: var(--importly-danger-soft);
  color: var(--importly-danger);
  border: 1px solid var(--importly-danger-soft);
  font-size: 0.875rem;
}