* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--cp-bg);
  color: var(--cp-text);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.45;
}

.container {
  width: min(1040px, 100% - 2rem);
  margin: 1.5rem auto 2.5rem;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 1rem;
  box-shadow: var(--cp-shadow);
  padding: 1rem;
  margin-bottom: 1rem;
}

.hero h1,
h2 {
  margin: 0 0 0.5rem;
}

.hero h1 {
  font-size: clamp(1.6rem, 2.4vw, 2.8rem);
  line-height: 1.15;
}

.page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.page-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  background: var(--cp-surface-soft);
  color: var(--cp-text);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--cp-border);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.page-nav-link:hover {
  background: var(--cp-highlight);
  border-color: var(--cp-accent);
  transform: translateY(-1px);
}

.page-nav-link.active {
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
  border-color: var(--cp-accent);
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.hero-logo {
  display: block;
  width: clamp(56px, 8vw, 90px);
  height: auto;
}

.hero-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero-accordion {
  margin-top: 0.75rem;
  border: 1px solid var(--cp-border);
  border-radius: 0.75rem;
  background: var(--cp-surface-soft);
}

.hero-subtitle {
  margin: 0;
  font-weight: 600;
  color: var(--cp-text-muted);
}

.hero-accordion > summary {
  cursor: pointer;
  padding: 0.75rem 0.9rem;
  font-weight: 600;
}

.hero-accordion-content {
  border-top: 1px solid var(--cp-border);
  padding: 0.75rem 0.9rem;
}

.hero-accordion-content h3 {
  margin: 0 0 0.5rem;
}

.hero-accordion-content p {
  margin: 0 0 0.75rem;
}

.hero-accordion-content hr {
  border: 0;
  border-top: 1px solid var(--cp-border);
  margin: 0.75rem 0;
}

.muted {
  color: var(--cp-text-muted);
  margin-top: 0;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-weight: 600;
}

input,
select,
button {
  font: inherit;
  border-radius: 0.625rem;
}

input,
select {
  width: 100%;
  border: 1px solid var(--cp-border);
  background: var(--cp-surface);
  color: var(--cp-text);
  padding: 0.625rem 0.75rem;
}

.quantity-control {
  display: grid;
  grid-template-columns: 3rem 1fr 3rem;
  gap: 0.5rem;
  align-items: center;
}

.quantity-button {
  padding: 0.625rem 0;
  font-weight: 700;
}

#quantity {
  text-align: center;
}

input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: 2px solid var(--cp-accent);
  outline-offset: 1px;
}

button {
  border: 1px solid var(--cp-accent);
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
  padding: 0.625rem 0.875rem;
  cursor: pointer;
}

button:hover {
  background: var(--cp-accent-hover);
  border-color: var(--cp-accent-hover);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.button-soft {
  background: var(--cp-surface-soft);
  color: var(--cp-text);
  border-color: var(--cp-border-strong);
}

.button-soft:hover {
  background: var(--cp-highlight);
  border-color: var(--cp-border-strong);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--cp-border);
  padding: 0.625rem 0.5rem;
  text-align: center;
}

th {
  color: var(--cp-text-muted);
  font-weight: 600;
}

.next-tier {
  border: 1px solid var(--cp-accent);
  background: var(--cp-accent-soft);
  border-radius: 0.75rem;
  padding: 0.75rem 0.9rem;
  margin-bottom: 0.875rem;
}

.next-tier-title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.next-tier-track {
  height: 14px;
  border-radius: 999px;
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  overflow: hidden;
}

.next-tier-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cp-accent), var(--cp-warning));
  transition: width 0.6s ease;
}

.next-tier-numbers {
  margin: 0.35rem 0 0;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.next-tier-hint {
  margin: 0.15rem 0 0;
  color: var(--cp-text-muted);
  font-size: 0.9rem;
}

.levels-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.level-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--cp-border);
  border-radius: 0.75rem;
  background: var(--cp-surface-soft);
}

.level-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.level-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.level-title {
  font-weight: 600;
}

.level-range {
  color: var(--cp-text-muted);
  font-size: 0.85rem;
}

.level-item.current {
  border-color: var(--cp-accent);
  background: var(--cp-accent-soft);
}

.level-current-badge {
  flex-shrink: 0;
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}

.session-box {
  margin-top: 0.875rem;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface-soft);
  padding: 0.75rem;
}

.session-box p {
  margin: 0 0 0.625rem;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.inline-actions button {
  flex: 1 1 140px;
  min-width: 0;
}

.modal-actions {
  margin-top: 0.75rem;
}

.message {
  min-height: 1.25rem;
  margin: 0.25rem 0 0;
  color: var(--cp-text-muted);
}

.message.success {
  color: var(--cp-success);
}

.message.error {
  color: var(--cp-danger);
}

.app-version {
  margin: 1rem 0 0;
  text-align: center;
  color: var(--cp-text-muted);
  font-size: 0.9rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--cp-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
}

.modal-box {
  width: min(420px, 100%);
  max-height: 90vh;
  overflow-x: hidden;
  overflow-y: auto;
}

.modal-box-wide {
  width: min(640px, 100%);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.modal-header h3 {
  margin: 0;
}

.modal-close {
  flex-shrink: 0;
  padding: 0.375rem 0.625rem;
  line-height: 1;
}

.history-btn {
  padding: 0.375rem 0.625rem;
  font-size: 1.1rem;
  line-height: 1;
}

.hidden,
.modal-overlay.hidden {
  display: none;
}