:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --border: #dee2e6;
  --text: #212529;
  --muted: #6c757d;
  --primary: #0d6efd;
  --primary-hover: #0b5ed7;
  --success: #198754;
  --danger: #dc3545;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

header h1 { font-size: 1.4rem; }

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { background: var(--bg); }

.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }

/* ---------- Drop zone ---------- */

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 3rem 1rem;
  text-align: center;
  color: var(--muted);
  background: var(--surface);
  transition: border-color 0.15s, background 0.15s;
  cursor: pointer;
}
.dropzone.over {
  border-color: var(--primary);
  background: #e7f0ff;
}
.dropzone p { margin-bottom: 0.5rem; }
.dropzone .hint { font-size: 0.85rem; }

/* ---------- File list ---------- */

.file-list {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
}

.file-item .icon { font-size: 1.1rem; flex-shrink: 0; width: 1.5rem; text-align: center; }
.file-item .icon.ready { color: var(--success); }
.file-item .icon.error { color: var(--danger); }
.file-item .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item .arrow { color: var(--muted); flex-shrink: 0; }
.file-item .output { color: var(--muted); flex-shrink: 0; font-size: 0.85rem; }

.file-item .progress-bar {
  height: 4px;
  background: var(--bg);
  border-radius: 2px;
  flex: 1;
  max-width: 120px;
}
.file-item .progress-bar .fill {
  height: 100%;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.2s;
}

.file-item .status { font-size: 0.8rem; color: var(--muted); flex-shrink: 0; }
.file-item .status.error { color: var(--danger); }

/* Why a file failed, on its own line under the row. The row wraps to make
   room, and the left margin lines it up with the filename past the icon. */
.file-item { flex-wrap: wrap; }
.file-item .message {
  flex-basis: 100%;
  margin-left: 2.25rem;
  font-size: 0.8rem;
}
.file-item .message.error { color: var(--danger); }

.batch-actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.5rem;
}

/* ---------- Login screen ---------- */

.login-screen {
  text-align: center;
  margin-top: 6rem;
}
.login-screen p {
  color: var(--muted);
  margin: 1rem 0 2rem;
}

/* ---------- Hidden ---------- */
.hidden { display: none !important; }