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

body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f0f4f8;
  color: #1a2a3a;
  min-height: 100vh;
  line-height: 1.5;
}

.header {
  background: linear-gradient(135deg, #e88320 0%, #d46a10 100%);
  color: #fff;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

.subtitle {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  opacity: 0.95;
}

.sync-status {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.15);
}

.sync-status.ok {
  background: rgba(255, 255, 255, 0.2);
}

.sync-status.warn {
  background: rgba(200, 30, 30, 0.35);
}

.layout {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
}

.card h2 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: #0d3d6b;
}

.card h3 {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
  color: #555;
}

.toggle-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  cursor: pointer;
  padding: 0.75rem;
  background: #f8fafc;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.toggle-row input {
  width: 20px;
  height: 20px;
  accent-color: #e88320;
}

.toggle-label {
  font-weight: 600;
}

.toggle-hint {
  font-size: 0.85rem;
  color: #666;
  width: 100%;
  padding-left: 1.75rem;
}

.range-block {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid #e8ecf0;
}

.range-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.range-inputs label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.range-inputs select {
  min-width: 220px;
  padding: 0.5rem 0.75rem;
  border: 1px solid #ccd5e0;
  border-radius: 6px;
  font-size: 0.95rem;
}

.current-block p {
  margin-bottom: 0.75rem;
}

.current-block strong {
  color: #e88320;
}

.nav-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.55rem 1.1rem;
  border: 1px solid #ccd5e0;
  border-radius: 8px;
  background: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.btn:hover {
  background: #f0f4f8;
}

.btn-primary {
  background: #e88320;
  border-color: #e88320;
  color: #fff;
}

.btn-primary:hover {
  background: #d46a10;
}

.btn-secondary {
  background: #0d3d6b;
  border-color: #0d3d6b;
  color: #fff;
}

.btn-secondary:hover {
  background: #0a2f52;
}

.btn-danger {
  background: #c41e1e;
  border-color: #c41e1e;
  color: #fff;
}

.btn-danger:hover {
  background: #a01818;
}

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

.hint {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 1rem;
}

.stops-admin-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 55vh;
  overflow-y: auto;
}

.stop-admin-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 2px solid #e8ecf0;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.stop-admin-item:hover {
  border-color: #bde0f5;
  background: #f8fcff;
}

.stop-admin-item.current {
  border-color: #e88320;
  background: #fff8f0;
}

.stop-admin-item.out-of-range {
  opacity: 0.45;
}

.stop-num {
  font-weight: 700;
  color: #0d3d6b;
  min-width: 2rem;
}

.stop-admin-name {
  flex: 1;
  min-width: 140px;
  font-weight: 500;
}

.audio-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.audio-row input[type="file"] {
  font-size: 0.8rem;
  max-width: 200px;
}

.audio-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: #3d9e4f;
  color: #fff;
}

.audio-badge.none {
  background: #999;
}

.footer {
  max-width: 900px;
  margin: 0 auto 2rem;
  padding: 0 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.link-screen {
  color: #0d3d6b;
  font-weight: 600;
}