:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --border: #e2e2e7;
  --border-strong: #c9c9d1;
  --text: #1f2328;
  --muted: #6b7280;
  --primary: #4338ca;
  --primary-muted: #eef2ff;
  --danger: #b91c1c;
  --danger-muted: #fef2f2;
  --success: #047857;
  --radius: 10px;
  --space: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple SD Gothic Neo", sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

.muted {
  color: var(--muted);
}

.error {
  color: var(--danger);
  font-size: 13px;
}

/* Login */
.login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-card h1 {
  font-size: 20px;
  margin: 0;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
}

input,
select,
textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  width: 100%;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary-muted);
  border-color: var(--primary);
}

/* Buttons */
.btn {
  font: inherit;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  background: var(--surface);
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
}

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

.btn-ghost {
  background: transparent;
  border-color: var(--border-strong);
}

.btn-danger {
  background: var(--danger-muted);
  color: var(--danger);
  border-color: var(--danger);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 13px;
}

/* App shell */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 12px 24px 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.tab {
  font: inherit;
  font-weight: 600;
  padding: 10px 14px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.content {
  padding: 24px;
  max-width: 960px;
  margin: 0 auto;
}

/* Cards / sections */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card h2 {
  font-size: 16px;
  margin: 0 0 4px;
}

.section-desc {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.form-grid .full {
  grid-column: 1 / -1;
}

.row-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  align-items: flex-end;
}

.toolbar label {
  flex: 1;
}

/* Table */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-muted);
  color: var(--primary);
  margin: 0 4px 4px 0;
}

.badge-success {
  background: #ecfdf5;
  color: var(--success);
}

.badge-muted {
  background: #f1f5f9;
  color: var(--muted);
}

.checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.checkbox-row input {
  width: auto;
}

.result-box {
  background: var(--primary-muted);
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
  word-break: break-all;
}

.result-box code {
  font-size: 13px;
}

.load-more {
  margin-top: 12px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 100;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .content {
    padding: 16px;
  }
}