:root {
  --bg: #f4f5fa;
  --surface: #ffffff;
  --surface-muted: #f7f8fc;
  --border: #e6e8f0;
  --text: #1c2033;
  --text-muted: #767c94;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef0ff;
  --milestone: #f59e0b;
  --milestone-soft: #fef3e0;
  --milestone-border: #f6c667;
  --danger: #e0473f;
  --danger-soft: #fdeceb;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(20, 24, 42, 0.04), 0 12px 28px rgba(20, 24, 42, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 16px 72px;
}

.page-header {
  text-align: center;
  margin-bottom: 28px;
}

.page-header h1 {
  color: var(--text);
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.page-header p {
  color: var(--text-muted);
  margin: 0;
  font-size: 1rem;
}

.wizard-card, .calendar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 20px;
}

/* ---------- Step indicator ---------- */

.progress-track {
  position: relative;
  margin-bottom: 32px;
}

.step-indicator {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  justify-content: space-between;
  gap: 4px;
  position: relative;
}

.step-indicator::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 6%;
  right: 6%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.step-indicator li {
  flex: 1;
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
  font-weight: 500;
}

.step-indicator li span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  margin: 0 auto 8px;
  font-weight: 700;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.step-indicator li.active span {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.step-indicator li.active {
  color: var(--text);
}

.step-indicator li.done span {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.step-indicator li.done span::after {
  content: "✓";
}

/* ---------- Form elements ---------- */

.step-panel {
  animation: fadeSlideIn 0.25s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-panel label {
  display: block;
  font-weight: 700;
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.step-panel select,
.step-panel input[type="number"] {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  background: var(--surface-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}

.step-panel select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23767c94' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 18px;
  padding-right: 42px;
}

.step-panel input[type="number"]::-webkit-outer-spin-button,
.step-panel input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.step-panel input[type="number"] {
  -moz-appearance: textfield;
}

.step-panel select:focus,
.step-panel input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.level-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

.level-progress-track {
  flex: 1;
  height: 10px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.level-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), #7c73f0);
  border-radius: 999px;
  transition: width 0.15s ease;
}

.level-progress-label {
  min-width: 64px;
  text-align: right;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--primary);
}

.sub-label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin: 18px 0 10px;
  color: var(--text);
}

.quest-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 4px;
}

.quest-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: var(--surface-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.quest-item:hover { border-color: var(--primary); }
.quest-item input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  flex-shrink: 0;
}
.quest-item .quest-info { flex: 1; }
.quest-item .quest-title { font-weight: 700; font-size: 0.92rem; }
.quest-item .quest-exp { color: var(--primary); font-weight: 700; font-size: 0.85rem; margin-top: 2px; }
.quest-item .quest-alt {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.quest-item .quest-alt input { accent-color: var(--primary); }

.quest-instances {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 220px;
  overflow-y: auto;
  padding-right: 4px;
}
.quest-instance-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--surface-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
}
.quest-instance-item input { accent-color: var(--primary); width: 16px; height: 16px; }

.quest-summary {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--primary-soft);
  border: 1px solid #d6d3ff;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text);
}
.quest-summary strong { color: var(--primary); }

.hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 10px 0 0;
  line-height: 1.4;
}

.error-box {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  color: #a6332c;
  font-size: 0.9rem;
}

.step-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 28px;
  gap: 10px;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 13px 26px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.05s ease, opacity 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--primary);
  color: #fff;
  margin-left: auto;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.28);
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary {
  background: var(--surface-muted);
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

/* ---------- Result section ---------- */

.result-section { margin-top: 8px; }

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

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

.summary-card .label {
  color: var(--text-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  font-weight: 600;
}

.summary-card .value {
  color: var(--primary);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* ---------- Calendar ---------- */

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.calendar-header h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: capitalize;
}

.cal-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}
.cal-nav-btn:hover:not(:disabled) { background: var(--surface-muted); }
.cal-nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 8px;
}
.calendar-weekdays span {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.cal-day {
  min-height: 52px;
  width: 100%;
  min-width: 0;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: default;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  padding: 4px;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.cal-day--empty {
  border: none;
  background: transparent;
}

.cal-day--disabled {
  color: var(--text-muted);
  background: var(--surface-muted);
  opacity: 0.5;
}

.cal-day--available {
  cursor: pointer;
}
.cal-day--available:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.15);
  transform: translateY(-1px);
}

.cal-day--milestone {
  cursor: pointer;
  background: var(--milestone-soft);
  border-color: var(--milestone-border);
  color: #8a5a08;
}
.cal-day--milestone:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.25);
}

.cal-day--selected {
  outline: 2.5px solid var(--primary);
  outline-offset: 1px;
}

.cal-day .badge {
  font-size: 0.6rem;
  font-weight: 800;
  background: var(--milestone);
  color: #fff;
  padding: 1px 6px;
  border-radius: 999px;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  display: inline-block;
}
.legend-dot--milestone { background: var(--milestone-soft); border: 1.5px solid var(--milestone-border); }
.legend-dot--available { background: var(--surface); border: 1.5px solid var(--border); }
.legend-dot--disabled { background: var(--surface-muted); border: 1.5px solid var(--border); opacity: 0.7; }

.calendar-detail {
  margin-top: 18px;
  padding: 18px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.calendar-detail h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 800;
}

.calendar-detail .milestone-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}
.calendar-detail .milestone-row .badge {
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--milestone);
  color: #fff;
  padding: 3px 10px;
  border-radius: 999px;
}

.hour-picker {
  margin-top: 6px;
}
.hour-picker input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
}
.hour-picker-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.hour-picker-label strong {
  color: var(--text);
  font-size: 1rem;
}

.detail-result {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}
.detail-result .item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.detail-result .item .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 4px;
}
.detail-result .item .value {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
}
.detail-note {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

#restartBtn {
  display: block;
  margin: 0 auto;
}

@media (max-width: 560px) {
  .step-indicator li { font-size: 0.62rem; }
  .step-indicator li span { width: 28px; height: 28px; }
  .wizard-card, .calendar-card { padding: 18px; }
  .cal-day { min-height: 40px; font-size: 0.78rem; }
  .cal-day .badge { font-size: 0.52rem; padding: 1px 4px; }
}