:root {
  --bg: #0f172a;
  --panel: #111827;
  --accent: #22c55e;
  --accent-2: #38bdf8;
  --muted: #94a3b8;
  --text: #e5e7eb;
  --border: #1e293b;
  --danger: #ef4444;
  --warn: #f59e0b;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Manrope", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 10% 20%, rgba(34, 197, 94, 0.07), transparent 35%), radial-gradient(circle at 80% 0%, rgba(56, 189, 248, 0.07), transparent 30%), var(--bg);
  color: var(--text);
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px 40px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

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

.logo-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.2);
}

.title {
  font-weight: 700;
  letter-spacing: 0.3px;
}

.subtitle {
  color: var(--muted);
  font-size: 12px;
}

.session {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tag {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.2);
  color: #67e8f9;
  font-size: 12px;
  letter-spacing: 0.4px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-head h2 {
  margin: 0;
  font-size: 20px;
}

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

.actions {
  margin-left: auto;
}

.form-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 12px;
}

input, select, button {
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  background: #0b1222;
  color: var(--text);
  font-size: 14px;
}

button {
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #16a34a);
  border: none;
  color: #0b1222;
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

button:hover { transform: translateY(-1px); box-shadow: 0 10px 20px rgba(34, 197, 94, 0.25); }
button:active { transform: translateY(0); box-shadow: none; }

button.ghost {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
}

.filters {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.filters label {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

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

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

th {
  text-align: center;
  color: var(--muted);
  background: #0b1222;
  position: sticky;
  top: 0;
}

td:first-child, th:first-child {
  text-align: left;
}

.table-wrap.compact th, .table-wrap.compact td {
  padding: 8px 6px;
}

.hidden { display: none; }

.error {
  color: var(--danger);
  margin-top: 8px;
  font-size: 13px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: #0b1222;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-title {
  font-weight: 700;
}

.block-title {
  font-weight: 700;
  margin: 10px 0 6px;
}

.compare-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
  margin: 10px 0;
}

.csv-btn {
  font-size: 12px;
  padding: 6px 10px;
}

.lstep-block {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: #0b1222;
}

.weekday-sat {
  background: rgba(239, 68, 68, 0.08);
}

.weekday-sun {
  background: rgba(59, 130, 246, 0.08);
}

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

@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: flex-start; gap: 12px; }
  .form-row { flex-direction: column; align-items: stretch; }
  .filters { width: 100%; }
  .filters label { width: 100%; }
  input, select, button { width: 100%; }
  button.ghost { width: auto; }
}