:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #f9fafc;
  --text: #172033;
  --muted: #6b7280;
  --border: #e6eaf0;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --success-bg: #dcfce7;
  --success-text: #166534;
  --warning-bg: #fef3c7;
  --warning-text: #92400e;
  --danger-bg: #fee2e2;
  --danger-text: #991b1b;
  --info-bg: #e0f2fe;
  --info-text: #075985;
  --neutral-bg: #eef2f7;
  --neutral-text: #334155;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(135deg, #eef6ff 0%, #f8fafc 55%, #f1f5f9 100%);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 34px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

.login-card p {
  margin: 0 0 24px;
  color: var(--muted);
}

.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 7px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 13px;
  font: inherit;
  background: var(--surface);
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(37, 99, 235, 0.16);
  border-color: var(--primary);
}

.check-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.check-row input {
  width: auto;
}

.field-meta {
  color: var(--muted);
  font-weight: 700;
}

.choice-row {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-right: 14px;
  font-weight: 700;
}

.choice-row input {
  width: auto;
}

.upload-choice {
  display: grid;
  gap: 10px;
}

.upload-pane[hidden] {
  display: none;
}

.file-preview {
  margin-top: 8px;
  font-weight: 700;
}

.upload-progress {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.upload-progress[hidden] {
  display: none;
}

.upload-progress-bar {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--neutral-bg);
  border: 1px solid var(--border);
}

.upload-progress-bar span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--primary);
  transition: width 0.15s ease;
}

.upload-progress-text {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.color-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-preview {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.app-shell {
  min-height: 100vh;
  display: flex;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
  width: 270px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 22px 16px;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 22px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
}

.brand small {
  display: block;
  color: var(--muted);
  margin-top: 3px;
}

.sidebar-nav {
  display: grid;
  gap: 5px;
}

.sidebar-nav a {
  display: block;
  color: var(--text);
  padding: 11px 12px;
  border-radius: 10px;
  font-weight: 700;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: #eff6ff;
  color: var(--primary-dark);
}

.sidebar-nav .logout-link {
  margin-top: 14px;
  color: var(--danger);
}

.main {
  width: 100%;
  margin-left: 270px;
  padding: 24px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: space-between;
  margin: -24px -24px 24px;
  padding: 18px 24px;
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  margin: 0;
  font-size: 24px;
}

.topbar p {
  margin: 4px 0 0;
  color: var(--muted);
}

.menu-toggle {
  display: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.stat-card,
.content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.stat-card {
  padding: 20px;
}

.stat-card span {
  color: var(--muted);
  font-weight: 700;
}

.stat-card strong {
  display: block;
  margin-top: 10px;
  font-size: 30px;
}

.content-card {
  margin-bottom: 22px;
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.card-header h2 {
  margin: 0;
  font-size: 18px;
}

.toolbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.search-form {
  display: flex;
  gap: 8px;
  min-width: min(100%, 430px);
}

.search-form input {
  min-width: 220px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  border-radius: 10px;
  padding: 10px 13px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

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

.btn-secondary {
  background: var(--neutral-bg);
  color: var(--neutral-text);
}

.btn-secondary:hover {
  background: #dbe5f2;
  color: #0f172a;
}

.btn-ghost {
  background: var(--surface-soft);
  color: var(--text);
}

.btn-ghost:hover {
  background: #e8eef7;
  color: #0f172a;
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.btn-danger:hover {
  background: #fecaca;
  color: var(--danger-text);
}

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-weight: 700;
}

.alert-error {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.alert-success {
  background: var(--success-bg);
  color: var(--success-text);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

.data-table th,
.data-table td {
  padding: 12px 11px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  background: var(--surface-soft);
  color: #475569;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.data-table tr:hover td {
  background: #fbfdff;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.badge-success {
  background: var(--success-bg);
  color: var(--success-text);
}

.badge-warning {
  background: var(--warning-bg);
  color: var(--warning-text);
}

.badge-danger {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.badge-info {
  background: var(--info-bg);
  color: var(--info-text);
}

.badge-neutral {
  background: var(--neutral-bg);
  color: var(--neutral-text);
}

.actions {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

.empty-state {
  border: 1px dashed #cbd5e1;
  background: var(--surface-soft);
  border-radius: 12px;
  padding: 28px;
  color: var(--muted);
  text-align: center;
}

.placeholder-card {
  max-width: 620px;
  text-align: center;
  padding: 42px 28px;
}

.placeholder-card h2 {
  margin: 12px 0 8px;
}

.placeholder-card p {
  color: var(--muted);
  margin-bottom: 20px;
}

.placeholder-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: #eff6ff;
  color: var(--primary);
  font-size: 24px;
  font-weight: 800;
}

.color-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.color-chip span {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  border: 1px solid var(--border);
}

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

@media (max-width: 1100px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main {
    margin-left: 0;
    padding: 18px;
  }

  .topbar {
    margin: -18px -18px 18px;
    padding: 14px 18px;
  }

  .menu-toggle {
    display: inline-flex;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    border-radius: 10px;
    padding: 10px 12px;
    font-weight: 800;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .search-form {
    width: 100%;
    flex-direction: column;
  }
}