*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background-color: var(--color-ground);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-ground);
  color: var(--color-ink);
  caret-color: var(--color-accent);
}

::selection {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-accent-hover);
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-surface-soft);
  background-color: var(--color-surface);
  padding: var(--space-4) var(--space-6);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-ink);
}

.brand-symbol {
  width: 32px;
  height: 32px;
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 700;
  font-size: var(--text-caption);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  letter-spacing: -0.02em;
}

.brand-text {
  font-weight: 700;
  font-size: var(--text-lead);
  letter-spacing: -0.02em;
}

.header-meta {
  color: var(--color-ink-muted);
  font-size: var(--text-caption);
}

/* Main Layout */
.main-content {
  flex: 1;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6) var(--space-16);
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

/* Hero Section */
.hero-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 720px;
}

.hero-title {
  font-size: var(--text-display);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 700;
  text-wrap: balance;
}

.hero-sub {
  font-size: var(--text-lead);
  color: var(--color-ink-muted);
  text-wrap: pretty;
  line-height: 1.45;
}

/* Service Menu List */
.services-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-base);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.card-title {
  font-size: var(--text-title);
  letter-spacing: -0.02em;
  font-weight: 600;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
}

.service-option-item {
  background-color: var(--color-surface-soft);
  border-radius: var(--radius-base);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-header-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.service-name {
  font-weight: 600;
  font-size: var(--text-lead);
}

.service-price {
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.service-duration {
  font-size: var(--text-caption);
  color: var(--color-ink-muted);
}

/* Booking Workspace */
.workspace-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 820px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

.booking-form-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-base);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field-label {
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--color-ink);
}

.form-input, .form-select {
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-surface-soft);
  color: var(--color-ink);
  font-family: inherit;
  font-size: var(--text-body);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-base);
  width: 100%;
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.slots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.slot-btn {
  background-color: var(--color-surface-soft);
  color: var(--color-ink);
  border: 1px solid transparent;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-base);
  font-size: var(--text-caption);
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.15s ease, border-color 0.15s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
}

.slot-btn:hover:not(:disabled) {
  border-color: var(--color-accent);
}

.slot-btn.selected {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
}

.slot-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  text-decoration: line-through;
  background-color: var(--color-ground);
}

.slot-status-note {
  font-size: var(--text-caption);
  color: var(--color-ink-muted);
}

.submit-btn {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-base);
  font-size: var(--text-body);
  font-weight: 700;
  cursor: pointer;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease;
  margin-top: var(--space-2);
}

.submit-btn:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Feedback messages */
.feedback-box {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-base);
  font-size: var(--text-body);
  display: none;
}

.feedback-box.is-success {
  display: block;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
}

.feedback-box.is-error {
  display: block;
  background-color: var(--color-danger-soft);
  color: var(--color-danger);
}

/* Saved Bookings Card */
.ledger-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-base);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.ledger-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.refresh-btn {
  background-color: var(--color-surface-soft);
  color: var(--color-ink);
  border: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-base);
  font-size: var(--text-caption);
  cursor: pointer;
  min-height: 36px;
}

.refresh-btn:hover {
  background-color: color-mix(in oklch, var(--color-surface-soft) 85%, white);
}

.bookings-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 120px;
}

.booking-item {
  background-color: var(--color-surface-soft);
  border-radius: var(--radius-base);
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.booking-item-title {
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.booking-item-meta {
  font-size: var(--text-caption);
  color: var(--color-ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-variant-numeric: tabular-nums;
}

.empty-state {
  color: var(--color-ink-muted);
  font-size: var(--text-body);
  padding: var(--space-6) 0;
  text-align: center;
}

/* System Notes / QA Notice */
.qa-notice {
  background-color: var(--color-surface);
  border-radius: var(--radius-base);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.qa-notice-title {
  font-size: var(--text-lead);
  font-weight: 600;
}

.qa-notice-text {
  font-size: var(--text-caption);
  color: var(--color-ink-muted);
  line-height: 1.5;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-surface-soft);
  padding: var(--space-8) var(--space-6);
  background-color: var(--color-surface);
  margin-top: auto;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-name {
  font-size: var(--text-title);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.footer-sub {
  color: var(--color-ink-muted);
  font-size: var(--text-caption);
}