:root {
  color-scheme: light;
  --bg: #f4f7fc;
  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --border: #d9e2ef;
  --text: #0f172a;
  --text-muted: #516079;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --success-soft: #dcfce7;
  --success-strong: #166534;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.08);
  --focus: 0 0 0 3px rgba(37, 99, 235, 0.22);
}

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

html,
body,
#root {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top right, #eaf1ff, #f4f7fc 40%);
  font-family:
    Inter,
    "Noto Sans JP",
    "Yu Gothic UI",
    "Segoe UI",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  color: var(--text);
}

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

.app-body {
  display: flex;
  flex: 1;
  min-height: 0;
}

.sidebar {
  flex-shrink: 0;
  width: 200px;
  border-right: 1px solid var(--border);
  background: var(--surface-muted);
  padding: 16px 0;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  border-left: 3px solid transparent;
  margin-left: 0;
}

.nav-link:hover {
  background: var(--border);
  color: var(--primary-strong);
}

.nav-link-active {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-left-color: var(--primary);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
}

.brand-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-subtitle {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 13px;
}

.content {
  flex: 1;
  overflow: auto;
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
  width: 100%;
}

.layout-grid {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.panel-column {
  display: grid;
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px;
}

.card-title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
}

.helper-text {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 13px;
}

.field-grid {
  display: grid;
  gap: 10px;
}

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 5px;
}

.input,
.textarea,
.select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 9px 11px;
  font-size: 14px;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.textarea {
  min-height: 84px;
  resize: vertical;
  font-family: inherit;
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--focus);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: #1e293b;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn:hover {
  border-color: #b8c7de;
  background: #f8fbff;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

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

.btn-primary:hover {
  border-color: var(--primary-strong);
  background: var(--primary-strong);
}

.btn-danger {
  border-color: #f0b3b3;
  color: var(--danger);
}

.btn-danger:hover {
  background: var(--danger-soft);
  border-color: #e38c8c;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.toolbar-actions {
  display: flex;
  gap: 8px;
}

.drop-zone {
  position: relative;
  border: 1px dashed #9cb0cc;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fbfdff, #f5f9ff);
  padding: 22px 14px;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
  margin-bottom: 14px;
}

.drop-zone.is-dragover {
  border-color: var(--primary);
  background: #ebf3ff;
}

.drop-title {
  margin: 0;
  font-size: 18px;
}

.drop-text {
  margin: 6px 0 3px;
  font-weight: 600;
}

.drop-hint {
  margin: 0;
  color: var(--text-muted);
  font-size: 12px;
}

.drop-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #edf2fa;
  text-align: left;
  white-space: nowrap;
  font-size: 13px;
}

.data-table th {
  position: sticky;
  top: 0;
  background: #f8fbff;
  color: #334155;
  font-weight: 700;
  z-index: 1;
}

.data-table tr:hover td {
  background: #f9fbff;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  text-transform: lowercase;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 700;
}

.status-ready {
  color: var(--success-strong);
  background: var(--success-soft);
}

.status-failed {
  color: #991b1b;
  background: var(--danger-soft);
}

.status-processing {
  color: #1e40af;
  background: #dbeafe;
}

.result-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.empty-text,
.loading-text {
  color: var(--text-muted);
  font-size: 13px;
  margin: 8px 0;
}

.notification-stack {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 999;
  display: grid;
  gap: 8px;
}

.toast {
  min-width: 220px;
  max-width: 360px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  background: #fff;
  box-shadow: var(--shadow-md);
}

.toast.success {
  border-color: #a8d5b8;
  background: #f0fdf4;
}

.toast.error {
  border-color: #f1b4b4;
  background: #fef2f2;
}

@media (max-width: 1080px) {
  .layout-grid {
    grid-template-columns: 1fr;
  }

  .content {
    padding: 16px;
  }

  .topbar {
    padding: 12px 16px;
  }

  .brand-title {
    font-size: 20px;
  }
}