/* ==============================
   Design System (shared variables)
   ============================== */
:root {
  --color-bg: #faf7f3;
  --color-bg-subtle: #f3efe9;
  --color-bg-card: #fdfcfa;
  --color-bg-hover: #ede9e3;
  --color-text: #1e1e1c;
  --color-text-muted: rgba(30, 30, 28, 0.70);
  --color-text-light: rgba(30, 30, 28, 0.45);
  --color-border: rgba(30, 30, 28, 0.12);
  --color-border-light: rgba(30, 30, 28, 0.07);
  --color-accent: #1e1e1c;
  --font: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 680px;
  --max-width-wide: 1040px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.7;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: var(--font); cursor: pointer; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.container--wide {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==============================
   Nav
   ============================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 243, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  height: 52px;
  display: flex;
  align-items: center;
  padding: 0 24px;
}
.nav-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 400;
}
.logo-main { color: var(--color-text); letter-spacing: 0.04em; }
.logo-divider { color: var(--color-text-light); font-weight: 300; }
.logo-sub { color: var(--color-text-muted); }
.nav-back {
  font-size: 13px;
  color: var(--color-text-light);
  transition: color 0.15s;
}
.nav-back:hover { color: var(--color-text); }

/* ==============================
   Hero
   ============================== */
.page-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-border-light);
}
.eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 12px;
}
.page-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.page-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==============================
   Pricing Bar
   ============================== */
.pricing-bar {
  border-bottom: 1px solid var(--color-border-light);
  padding: 20px 0;
  background: var(--color-bg-card);
}
.pricing-chips {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.pricing-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.chip-label {
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.chip-value {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.2;
}
.chip-value em {
  font-style: normal;
  font-size: 12px;
  font-weight: 300;
  color: var(--color-text-muted);
}
.chip-sub {
  font-size: 11px;
  color: var(--color-text-light);
}
.chip-sep {
  font-size: 16px;
  color: var(--color-border);
  font-weight: 300;
  align-self: center;
}

/* ==============================
   Booking Section
   ============================== */
.booking-section {
  padding: 40px 0 80px;
}
.booking-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
  align-items: start;
}
.booking-left {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ==============================
   Card
   ============================== */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
}

/* ==============================
   Calendar
   ============================== */
.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-light);
}
.cal-title {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: 0.02em;
}
.cal-arrow {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--color-text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  line-height: 1;
  transition: all 0.15s;
}
.cal-arrow:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 10px 12px 4px;
  gap: 4px;
}
.cal-weekdays span {
  text-align: center;
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 4px 12px 14px;
  gap: 4px;
}
.cal-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 300;
  color: var(--color-text);
  background: none;
  border: none;
  border-radius: 50%;
  transition: all 0.15s;
  position: relative;
}
.cal-day:not(.cal-empty):not(:disabled):hover {
  background: var(--color-bg-subtle);
}
.cal-day.cal-today {
  font-weight: 500;
  color: var(--color-text);
}
.cal-day.cal-today::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--color-text);
  border-radius: 50%;
}
.cal-day.cal-selected {
  background: var(--color-text) !important;
  color: #faf7f3;
  font-weight: 400;
}
.cal-day.cal-selected::after { display: none; }
.cal-day:disabled,
.cal-day.cal-past {
  color: var(--color-text-light);
  opacity: 0.35;
  cursor: default;
}
.cal-day.cal-empty { background: none; cursor: default; }

/* ==============================
   Time Slots
   ============================== */
.slots-card { padding: 0; }
.slots-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px 20px 10px;
  border-bottom: 1px solid var(--color-border-light);
  flex-wrap: wrap;
  gap: 6px;
}
.slots-date {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text);
}
.slots-hint {
  font-size: 12px;
  color: var(--color-text-light);
}
.slots-legend {
  display: flex;
  gap: 14px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--color-border-light);
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--color-text-light);
}
.leg-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}
.leg-avail { background: var(--color-bg-subtle); border: 1px solid var(--color-border); }
.leg-booked { background: rgba(30,30,28,0.06); }
.leg-sel { background: var(--color-text); }

.slots-loading {
  padding: 32px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-light);
}

.slots-periods {
  padding: 12px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.slot-period {}
.slot-period-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 6px;
}
.slot-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}
.slot-btn {
  padding: 7px 0;
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-light);
  border-radius: 4px;
  transition: all 0.1s;
  text-align: center;
  line-height: 1;
}
.slot-btn:not(:disabled):hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border);
  color: var(--color-text);
}
.slot-btn.slot-booked {
  background: rgba(30,30,28,0.04);
  color: var(--color-text-light);
  opacity: 0.4;
  cursor: not-allowed;
  text-decoration: line-through;
}
.slot-btn.slot-start {
  background: var(--color-text);
  color: #faf7f3;
  border-color: var(--color-text);
  font-weight: 500;
}
.slot-btn.slot-range {
  background: rgba(30,30,28,0.12);
  color: var(--color-text);
  border-color: rgba(30,30,28,0.18);
}
.slot-btn.slot-end {
  background: var(--color-text);
  color: #faf7f3;
  border-color: var(--color-text);
  font-weight: 500;
}

/* ==============================
   Booking Form
   ============================== */
.form-card {
  position: sticky;
  top: 68px;
}
.form-summary {
  padding: 20px 24px;
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sum-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sum-label {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
}
.sum-val {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 400;
}
.sum-row--price { margin-top: 4px; padding-top: 12px; border-top: 1px solid var(--color-border-light); }
.sum-price {
  font-size: 22px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

form {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}
.req { color: rgba(30,30,28,0.4); }
.form-group input {
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 300;
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
}
.form-group input:focus {
  border-color: rgba(30,30,28,0.4);
}
.form-group input::placeholder { color: var(--color-text-light); }

/* Headcount */
.headcount-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hc-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-bg-subtle);
  font-size: 18px;
  font-weight: 300;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  line-height: 1;
  padding-bottom: 1px;
}
.hc-btn:hover { background: var(--color-bg-hover); }
.hc-num {
  font-size: 18px;
  font-weight: 400;
  color: var(--color-text);
  min-width: 20px;
  text-align: center;
}
.hc-unit {
  font-size: 14px;
  color: var(--color-text-muted);
}
.hc-max {
  font-size: 12px;
  color: var(--color-text-light);
  margin-left: 4px;
}

/* Price Breakdown */
.price-breakdown {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-light);
  border-radius: 6px;
  padding: 12px 14px;
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.8;
  white-space: pre-line;
  display: none;
}
.price-breakdown.visible { display: block; }

/* Submit */
.btn-submit {
  width: 100%;
  height: 48px;
  background: var(--color-text);
  color: #f5ead8;
  border: none;
  border-radius: 6px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.04em;
  transition: background 0.15s;
}
.btn-submit:hover { background: #333330; }
.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.form-note {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.7;
  text-align: center;
}

/* ==============================
   Success Overlay
   ============================== */
.success-overlay {
  position: fixed;
  inset: 0;
  background: rgba(250,247,243,0.96);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.success-box {
  text-align: center;
  max-width: 360px;
}
.success-check {
  width: 56px;
  height: 56px;
  background: var(--color-text);
  color: #f5ead8;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin: 0 auto 20px;
}
.success-box h2 {
  font-size: 22px;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 12px;
}
.success-box p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
}
.btn-outline {
  padding: 12px 28px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: none;
  font-family: var(--font);
  font-size: 14px;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-outline:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}

/* ==============================
   Responsive
   ============================== */
@media (max-width: 780px) {
  .booking-grid {
    grid-template-columns: 1fr;
  }
  .form-card { position: static; }
  .pricing-chips { gap: 14px; }
  .chip-sep { display: none; }
  .slot-row { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 480px) {
  .nav { padding: 0 16px; }
  .container { padding: 0 16px; }
  .container--wide { padding: 0 16px; }
  .page-hero { padding: 40px 0 28px; }
  .slot-row { grid-template-columns: repeat(4, 1fr); }
  .pricing-bar .container { overflow-x: auto; }
  .pricing-chips { flex-wrap: nowrap; min-width: max-content; }
}