:root {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: #1a1a1a;
  background: #f0f2f5;
  line-height: 1.45;
}

body {
  margin: 0;
  min-height: 100vh;
}

#app {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

.hidden {
  display: none !important;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

h2 {
  margin: 1.5rem 0 0.75rem;
  font-size: 1.1rem;
}

.muted {
  color: #5c6470;
  margin: 0 0 1rem;
}

.count {
  font-weight: 600;
  margin: 0 0 1rem;
}

.upload-limit {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
}

.section-heading {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.05rem;
}

.section-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.25rem 0 0.5rem;
}

.section-heading-row .section-heading {
  margin: 0;
}

.upload-status {
  min-height: 1.25rem;
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.upload-status.is-loading {
  color: #1d4ed8;
}

.upload-status.is-success {
  color: #15803d;
}

.file-label span.has-file {
  border-color: #2563eb;
  background: #eff6ff;
  color: #1e3a8a;
}

.preview.has-map {
  padding: 0.75rem;
  border: 2px solid #86efac;
  border-radius: 10px;
  background: #f0fdf4;
}

.preview-caption {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #166534;
}

.tile-list li.tile-highlight {
  border-color: #86efac;
  box-shadow: 0 0 0 2px #bbf7d0;
}

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

input[type="email"],
input[type="password"] {
  padding: 0.5rem 0.65rem;
  border: 1px solid #c8cdd5;
  border-radius: 8px;
  font-size: 1rem;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  background: #2563eb;
  color: #fff;
}

button.secondary {
  background: #e5e7eb;
  color: #1f2937;
}

button.danger {
  background: #dc2626;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
}

.tab {
  background: #e5e7eb;
  color: #374151;
}

.tab.active {
  background: #2563eb;
  color: #fff;
}

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

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.grid-form {
  display: grid;
  gap: 0.75rem;
  max-width: 420px;
}

.file-label input {
  display: none;
}

.file-label span {
  display: inline-block;
  padding: 0.5rem 0.85rem;
  background: #f3f4f6;
  border-radius: 8px;
  border: 1px dashed #9ca3af;
  font-size: 0.9rem;
}

.error {
  color: #b91c1c;
  font-size: 0.9rem;
  min-height: 1.25rem;
}

.tile-list,
.admin-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 1rem;
}

.tile-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  background: #fafafa;
}

.tile-list img {
  width: 140px;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
}

.tile-meta {
  flex: 1;
  font-size: 0.85rem;
  color: #4b5563;
  word-break: break-all;
}

.admin-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid #e5e7eb;
}

.preview {
  margin: 1rem 0;
}

.preview img {
  max-width: 100%;
  max-height: 420px;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
}

.seats-toolbar {
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.seats-intro {
  flex: 1;
  margin: 0;
}

.seats-section {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #e5e7eb;
}

.seat-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: grid;
  gap: 0.75rem;
}

.seat-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  background: #fafafa;
}

.seat-qr canvas,
.seat-qr img.seat-qr-img {
  display: block;
  width: 120px;
  height: 120px;
  border-radius: 6px;
  border: 1px solid #e5e7eb;
  background: #fff;
}

.seat-meta {
  flex: 1;
  font-size: 0.95rem;
}

.tables-list {
  display: grid;
  gap: 1rem;
  margin-top: 0.75rem;
}

.table-block {
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 0.75rem 1rem;
  background: #fafafa;
}

.table-block-header h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.modal {
  border: none;
  border-radius: 12px;
  padding: 0;
  max-width: 420px;
  width: calc(100% - 2rem);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.modal::backdrop {
  background: rgba(15, 23, 42, 0.45);
}

.modal form {
  padding: 1.25rem 1.5rem;
  display: grid;
  gap: 0.75rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

input[type="number"] {
  padding: 0.5rem 0.65rem;
  border: 1px solid #c8cdd5;
  border-radius: 8px;
  font-size: 1rem;
}