/* ==========================================================================
   Upload page
   ========================================================================== */

.upload-hero {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 40px;
}

.upload-hero .eyebrow { display: block; margin-bottom: 14px; }

.upload-hero h1 { margin-bottom: 14px; }

.upload-hero p {
  color: var(--color-ink-soft);
  font-size: var(--step-1);
}

.upload-card {
  padding: 36px;
}

/* Dropzone: styled like a document waiting to be filled */
.dropzone {
  position: relative;
  border: 1.5px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 44px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s var(--ease), background 0.15s var(--ease);
}

.dropzone:hover,
.dropzone.is-dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.dropzone:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.dropzone-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  color: var(--color-primary);
}

.dropzone-title {
  font-weight: 700;
  font-size: var(--step-0);
  margin-bottom: 4px;
}

.dropzone-hint {
  font-size: var(--step--1);
  color: var(--color-ink-faint);
}

.dropzone-file {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-top: 16px;
  text-align: left;
}

.dropzone-file.is-visible { display: flex; }

.dropzone-file-icon {
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.dropzone-file-icon svg { width: 18px; height: 18px; }

.dropzone-file-meta { flex: 1; min-width: 0; }

.dropzone-file-name {
  font-weight: 700;
  font-size: var(--step--1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropzone-file-size {
  font-size: var(--step--1);
  color: var(--color-ink-faint);
}

.dropzone-file-remove {
  background: none;
  border: none;
  color: var(--color-ink-faint);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  line-height: 0;
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}

.dropzone-file-remove:hover { color: var(--color-error); background: var(--color-error-soft); }
.dropzone-file-remove svg { width: 16px; height: 16px; }

.upload-options {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: start;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.upload-submit { margin-top: 32px; }

/* Two-column field pairs (topic + exam, difficulty + question count) */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* The generic "form .field + .field" top-margin rule (from manage.css)
   would also apply between the two fields sitting side-by-side in a row —
   grid-gap already handles that spacing, so cancel it here. */
.field-row .field + .field { margin-top: 0; }

.form-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: 28px 0;
}

.upload-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  font-size: var(--step--1);
  color: var(--color-ink-faint);
}

.upload-note svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-ink-faint);
}

.split-pdf-callout {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--color-ink-faint);
}

.split-pdf-callout svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 1px;
}

.split-pdf-callout a {
  font-weight: 700;
  color: var(--color-primary-dark);
  text-decoration: underline;
}

@media (max-width: 560px) {
  .upload-card { padding: 24px; }
  .upload-options {
    grid-template-columns: 1fr;
  }
  .segmented { width: 100%; }
  .segmented label { flex: 1; justify-content: center; }
}