* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(135deg, #1e1b4b 0%, #4c1d95 100%);
  padding: 20px;
}

.card {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

h1 { margin: 0 0 4px; font-size: 1.6rem; text-align: center; }
.tagline { margin: 0 0 24px; text-align: center; color: #6b7280; font-size: 0.9rem; }

.input-row { display: flex; gap: 8px; }
#url-input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 2px solid #e5e7eb;
  font-size: 0.95rem;
  outline: none;
}
#url-input:focus { border-color: #7c3aed; }

.quality-select {
  width: 100%;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 2px solid #e5e7eb;
  font-size: 0.85rem;
  background: #fff;
  color: #374151;
  outline: none;
}
.quality-select:focus { border-color: #7c3aed; }

#btn-download {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
#btn-download:disabled { opacity: 0.6; cursor: not-allowed; }

.error-msg { color: #dc2626; font-size: 0.85rem; margin-top: 10px; min-height: 18px; }

.progress-wrap { display: none; margin-top: 20px; }
.progress-wrap.active { display: block; }
.progress-label { font-size: 0.85rem; color: #6b7280; margin-bottom: 6px; }
.progress-bar-bg { background: #f3f4f6; border-radius: 10px; height: 12px; overflow: hidden; }
.progress-bar { background: linear-gradient(135deg, #7c3aed, #a855f7); height: 100%; width: 0%; transition: width 0.3s; }

.result-wrap { display: none; margin-top: 20px; text-align: center; }
.result-wrap.active { display: block; }
.result-title { font-weight: 700; margin-bottom: 12px; color: #111827; }
.btn-file {
  display: inline-block;
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 700;
}

.settings-toggle {
  display: block;
  width: 100%;
  margin-top: 24px;
  background: none;
  border: none;
  color: #6b7280;
  font-size: 0.85rem;
  cursor: pointer;
  padding: 8px;
  text-align: center;
}
.settings-toggle:hover { color: #7c3aed; }

.settings-panel { display: none; margin-top: 8px; border-top: 1px solid #e5e7eb; padding-top: 16px; }
.settings-panel.active { display: block; }
.settings-status { font-size: 0.85rem; font-weight: 700; margin: 0 0 8px; }
.settings-status.ok { color: #16a34a; }
.settings-status.warn { color: #d97706; }
.settings-hint { font-size: 0.78rem; color: #6b7280; margin: 0 0 10px; line-height: 1.4; }
#cookies-textarea {
  width: 100%;
  min-height: 100px;
  border-radius: 10px;
  border: 2px solid #e5e7eb;
  padding: 10px;
  font-family: monospace;
  font-size: 0.75rem;
  resize: vertical;
  outline: none;
}
#cookies-textarea:focus { border-color: #7c3aed; }
#btn-save-cookies {
  margin-top: 8px;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
}
#cookies-msg { font-size: 0.8rem; margin-top: 8px; min-height: 16px; }