/* Document-upload dropzone — drag-and-drop field on the registration form.
 * task-252: modernised (Rise & Run teal accent, thumbnail preview, upload
 * progress, clearer states). Self-contained vars so it renders consistently
 * regardless of which token sheet the form page loads. Light + dark + mobile. */

.rd-dropzone {
  --rd-accent: #138577;
  --rd-accent-deep: #0f6f64;
  --rd-accent-soft: #e8f5f3;
  --rd-ink: #1e293b;
  --rd-muted: #64748b;
  --rd-line: #cbd5e1;
  --rd-err: #dc2626;
  --rd-bg: #f8fafc;

  position: relative;
  margin-top: 8px;
  border: 2px dashed var(--rd-line);
  border-radius: 14px;
  background: var(--rd-bg);
  padding: 26px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, box-shadow .18s ease;
}
.rd-dropzone:hover { border-color: var(--rd-accent); background: var(--rd-accent-soft); }
.rd-dropzone--over {
  border-color: var(--rd-accent);
  background: var(--rd-accent-soft);
  box-shadow: 0 0 0 4px rgba(19, 133, 119, .14);
}
.rd-dropzone--busy { cursor: progress; }
.rd-dropzone--busy .rd-dropzone__prompt { opacity: .5; }

/* ── Prompt (empty state) ── */
.rd-dropzone__prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  color: var(--rd-muted);
  font-size: 14px;
}
.rd-dropzone__prompt i {
  font-size: 30px;
  color: var(--rd-accent);
}
.rd-dropzone__prompt small { color: var(--rd-muted); font-size: 12.5px; }
.rd-dropzone__browse {
  border: none;
  background: none;
  padding: 0;
  color: var(--rd-accent-deep);
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
  font-size: inherit;
}

/* ── Filled (success) state — thumbnail + name + size + remove ── */
/* :not([hidden]) so the empty preview row stays hidden until a file is chosen. */
.rd-dropzone__file:not([hidden]) {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
}
.rd-dropzone__thumb {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 9px;
  object-fit: cover;
  background: #fff;
  border: 1px solid var(--rd-line);
}
.rd-dropzone__thumb--icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--rd-accent);
  font-size: 22px;
}
.rd-dropzone__meta { flex: 1; min-width: 0; }
.rd-dropzone__filename {
  display: block;
  color: var(--rd-ink);
  font-size: 14px;
  font-weight: 600;
  word-break: break-word;
}
.rd-dropzone__size { display: block; color: var(--rd-muted); font-size: 12px; margin-top: 2px; }
.rd-dropzone__size i { color: var(--rd-accent); }
.rd-dropzone__remove {
  flex-shrink: 0;
  border: none;
  background: #e2e8f0;
  color: #475569;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  line-height: 1;
  font-size: 17px;
}
.rd-dropzone__remove:hover { background: var(--rd-err); color: #fff; }

/* ── Progress bar (during upload) ── */
.rd-dropzone__progress {
  height: 5px;
  margin-top: 12px;
  border-radius: 999px;
  background: var(--rd-line);
  overflow: hidden;
}
.rd-dropzone__bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--rd-accent);
  transition: width .15s ease;
}

.rd-dropzone__error {
  margin-top: 10px;
  color: var(--rd-err);
  font-size: 13px;
  font-weight: 600;
}

.rd-dropzone--filled {
  border-style: solid;
  border-color: var(--rd-accent);
  background: var(--rd-accent-soft);
  cursor: default;
}

/* --------------------------------------------------------------- dark */
html.dark-mode .rd-dropzone {
  --rd-ink: #f1f5f9;
  --rd-muted: #94a3b8;
  --rd-line: rgba(255, 255, 255, .20);
  --rd-bg: rgba(255, 255, 255, .04);
  --rd-accent-soft: rgba(19, 133, 119, .14);
}
html.dark-mode .rd-dropzone__remove { background: rgba(255, 255, 255, .12); color: #cbd5e1; }
html.dark-mode .rd-dropzone__thumb { background: rgba(255, 255, 255, .06); }

@media (max-width: 600px) {
  .rd-dropzone { padding: 20px 14px; }
}