body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px 16px;
}

.panel {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── Status card ── */
.status-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
}
.status-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--surface-soft);
  flex-shrink: 0;
  border: 1px solid var(--border);
}
.status-icon.work { background: var(--green-bg);  color: var(--green); border-color: var(--green-bd); }
.status-icon.read { background: var(--yellow-bg); color: var(--yellow); border-color: var(--yellow-bd); }

.status-label { font-size: .62rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 2px; }
.status-mode        { font-size: .95rem; font-weight: 700; }
.status-mode.work   { color: var(--green); }
.status-mode.read   { color: var(--yellow); }
.status-count       { font-size: .66rem; color: var(--text-muted); margin-top: 2px; }

/* ── Mode toggle buttons ── */
.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.mode-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 18px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border2);
  background: var(--surface-soft);
  color: var(--text);
  cursor: pointer;
  font-family: var(--mono);
  font-size: .76rem;
  font-weight: 600;
  transition: background .15s, border-color .15s, transform .12s;
  -webkit-tap-highlight-color: transparent;
  min-height: 90px;
}
.mode-btn small { font-size: .6rem; font-weight: 400; color: var(--text-muted); }
.mode-btn:hover  { background: var(--surface-elevated); border-color: var(--border2); }
.mode-btn:active { transform: scale(0.98); }
.mode-btn.active-work { border-color: var(--green-bd);  background: var(--green-bg);  color: var(--green); }
.mode-btn.active-read { border-color: var(--yellow-bd); background: var(--yellow-bg); color: var(--yellow); }
.mode-btn.active-work small,
.mode-btn.active-read small { color: inherit; opacity: .7; }

/* ── Reset button ── */
.btn-danger {
  width: 100%;
  justify-content: center;
  padding: 12px;
}

/* ── Sticker upload section ── */
.section-title {
  font-size: .6rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2px;
}

.upload-drop {
  border: 1.5px dashed var(--border2);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  background: var(--surface-soft);
}
.upload-drop:hover,
.upload-drop.dragover {
  border-color: var(--primary);
  background: rgba(94,167,255,.06);
}
.upload-drop p { font-size: .76rem; color: var(--text-muted); margin-top: 6px; }
.upload-drop strong { color: var(--text); }

#fileInput { display: none; }

/* Preview grid */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 8px;
}
.preview-item {
  position: relative;
  aspect-ratio: 1;
  background: var(--surface-soft);
  border: 1px solid var(--border2);
  border-radius: var(--radius-xs);
  overflow: hidden;
}
.preview-item img {
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
}
.preview-item button {
  position: absolute;
  top: 3px; right: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: rgba(0,0,0,.6);
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  display: flex; align-items: center; justify-content: center;
  line-height: 1;
}
.preview-item button:hover { background: var(--danger); color: white; }

#uploadMsg { font-size: .72rem; }
#uploadMsg.ok    { color: var(--accent); }
#uploadMsg.error { color: var(--danger); }

/* ── Footer links ── */
.footer-links {
  display: flex;
  justify-content: space-between;
  font-size: .68rem;
  color: var(--text-muted);
  padding-top: 2px;
}
.footer-links a:hover { color: var(--text); }

@media (max-width: 360px) {
  .mode-btn { padding: 14px 8px; font-size: .7rem; min-height: 80px; }
}