.app-shell { max-width: 900px; }

.breadcrumbs {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}
.breadcrumbs a { text-decoration: none; }
.breadcrumbs span { margin: 0 0.4rem; opacity: 0.6; }

.app-header { margin-bottom: 2rem; }

.app-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}
.app-panel h2 { font-size: 1.2rem; }

.app-panel label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.app-panel textarea,
.app-panel input,
.app-panel select {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: rgba(3, 11, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
}
.app-panel textarea { font-family: var(--mono); font-size: 0.9rem; resize: vertical; }
.app-panel textarea:focus,
.app-panel input:focus,
.app-panel select:focus { outline: 2px solid var(--cyan); outline-offset: 1px; }

.app-panel button { border: 0; cursor: pointer; font: inherit; font-weight: 600; }
.app-panel button:disabled { opacity: 0.6; cursor: wait; }

.app-panel pre {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--foam);
}

.app-panel .dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 2.5rem 1rem;
  margin-bottom: 1.5rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: rgba(94, 231, 255, 0.04);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.app-panel .dropzone:hover,
.app-panel .dropzone:focus-within { border-color: var(--cyan); background: rgba(94, 231, 255, 0.08); }
.app-panel .dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  margin: 0;
  padding: 0;
}
.dropzone-title { font-weight: 600; color: var(--text); word-break: break-all; }
.dropzone-hint { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); font-weight: 400; }

.options {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem 0.5rem;
  margin: 0 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.75rem;
}
.options legend {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--cyan);
  padding: 0 0.4rem;
}
.app-panel .check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  cursor: pointer;
}
.app-panel .check input {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  padding: 0;
  accent-color: var(--cyan);
}
.app-panel .check input:disabled + span { opacity: 0.55; }
.check-all { padding-left: 1.75rem; border-left: 1px solid var(--border); }

.app-success {
  color: #b4ffd9;
  background: rgba(80, 255, 170, 0.08);
  border: 1px solid rgba(80, 255, 170, 0.3);
  border-radius: 10px;
  padding: 0.75rem 1rem;
}

.app-error {
  color: #ffb4b4;
  background: rgba(255, 80, 80, 0.1);
  border: 1px solid rgba(255, 80, 80, 0.35);
  border-radius: 10px;
  padding: 0.75rem 1rem;
}