body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 4%, rgba(242,188,76,.2), transparent 24rem),
    radial-gradient(circle at 92% 21%, rgba(231,91,59,.1), transparent 21rem),
    var(--paper);
}
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .2; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E"); }
.site-header { max-width: 1320px; margin: 0 auto; padding: 24px 34px; display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 2; }
.site-return { display: inline-flex; align-items: center; gap: 6px; flex: 0 0 auto; padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,250,240,.7); color: var(--leaf); font-size: 12px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.site-return[hidden] { display: none; }
.site-return:hover, .site-return:focus-visible { background: var(--cream); border-color: var(--leaf); }
.header-note { font-size: 12px; letter-spacing: .08em; color: var(--ink-soft); display: flex; align-items: center; gap: 8px; }
.header-note i { width: 8px; height: 8px; border-radius: 50%; background: var(--tomato); box-shadow: 0 0 0 5px rgba(231,91,59,.12); }
main { max-width: 1320px; margin: 0 auto; padding: 0 34px 80px; position: relative; z-index: 1; }
.hero { min-height: 390px; padding: 62px 7% 52px; display: flex; align-items: center; position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 44px 44px 14px 44px; background: rgba(255,250,240,.72); box-shadow: inset 0 1px white; }
.hero::after { content: ""; position: absolute; width: 300px; height: 300px; right: -30px; bottom: -170px; border-radius: 50%; border: 50px solid rgba(40,93,75,.08); }
.eyebrow { color: var(--tomato-dark); font-weight: 800; font-size: 11px; letter-spacing: .18em; margin: 0 0 13px; }
.hero h1 { margin: 0; font: 700 clamp(45px, 6.3vw, 84px)/1.05 var(--display); letter-spacing: -.04em; }
.hero h1 em { color: var(--leaf); font-style: normal; position: relative; }
.hero h1 em::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 10px; background: var(--sun); opacity: .6; transform: skewX(-15deg); z-index: -1; }
.hero-intro { max-width: 520px; margin: 30px 0 0; line-height: 1.8; color: var(--ink-soft); }

.calendar-shell { margin-top: 34px; border-radius: 18px 44px 44px 44px; padding: 34px; background: var(--leaf-dark); color: #f7f1e5; box-shadow: var(--shadow); }
.saved-bookings { margin-top: 28px; padding: 24px 28px; border: 1px solid var(--line); border-radius: 22px; background: var(--cream); }
.saved-bookings h2 { margin: 0 0 5px; font: 700 25px var(--display); }
.saved-bookings p { margin: 0 0 15px; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
#savedBookingList { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }
.saved-booking-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); overflow: hidden; }
.saved-booking-row:focus-within, .saved-booking-row:hover { border-color: var(--leaf); }
.saved-booking { min-width: 0; border: 0; padding: 13px 15px; background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.saved-booking strong, .saved-booking span { display: block; }
.saved-booking span { margin-top: 5px; color: var(--ink-soft); font-size: 12px; overflow-wrap: anywhere; }
.saved-booking-remove { border: 0; border-left: 1px solid var(--line); padding: 0 15px; background: transparent; color: var(--tomato-dark); font-weight: 700; cursor: pointer; }
.saved-booking-remove:hover, .saved-booking-remove:focus-visible { background: rgba(231,91,59,.09); }
.remove-booking-message { margin: 0; color: var(--ink-soft); line-height: 1.8; }
.calendar-toolbar { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 28px; }
.calendar-toolbar h2 { font: 700 34px var(--display); margin: 0; }
.calendar-toolbar .eyebrow { color: #f0a184; }
.week-label { color: rgba(255,255,255,.62); margin: 7px 0 0; font-size: 13px; }
.grade-filter { display: grid; gap: 6px; min-width: 150px; font-size: 11px; color: rgba(255,255,255,.72); }
.grade-filter select { min-height: 40px; border: 1px solid rgba(255,255,255,.25); border-radius: 12px; padding: 0 12px; color: var(--ink); background: var(--cream); }
.calendar-shell .icon-button, .calendar-shell .button.secondary { color: white; border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.06); }
.calendar-error { padding: 16px; border-radius: 12px; background: rgba(231,91,59,.16); color: #ffd8cd; margin-bottom: 20px; }
.desktop-calendar { display: grid; grid-template-columns: repeat(var(--day-count, 1), minmax(0, 1fr)); align-items: start; gap: 10px; }
.day-column { min-width: 0; padding: 11px; border: 1px solid rgba(255,255,255,.16); border-radius: 18px 18px 6px 18px; background: rgba(255,255,255,.045); }
.day-column-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; padding: 2px 2px 14px; }
.day-column-head strong { font: 700 23px var(--display); color: white; }
.day-column-head span { color: rgba(255,255,255,.58); font-size: 11px; white-space: nowrap; }
.day-course-list { display: grid; gap: 9px; }
.course-chip { width: 100%; min-height: 82px; border: 0; border-radius: 12px 12px 5px 12px; padding: 11px; text-align: left; background: var(--cream); color: var(--ink); cursor: pointer; transition: .18s ease; display: block; position: relative; overflow: hidden; }
.course-chip:hover { transform: translateY(-2px) rotate(-.4deg); box-shadow: 0 9px 22px rgba(0,0,0,.2); }
.course-chip::after { content: ""; width: 6px; position: absolute; right: 0; inset-block: 0; background: var(--sun); }
.course-chip.full::after, .course-chip.closed::after { background: #a9afa9; }
.course-chip b { display: block; font: 700 14px/1.25 var(--display); padding-right: 8px; }
.course-chip span { display: block; font-size: 10px; margin-top: 7px; color: var(--ink-soft); overflow-wrap: anywhere; }
.course-chip small { display: block; font-size: 10px; margin-top: 4px; color: var(--tomato-dark); font-weight: 800; }
.mobile-calendar { display: none; }

.course-detail-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 22px 0; }
.detail-stat { background: var(--paper); border-radius: 14px; padding: 14px; }
.detail-stat span { display: block; font-size: 11px; color: var(--ink-soft); margin-bottom: 6px; }.detail-stat strong { font-size: 15px; }
.course-description { line-height: 1.8; color: var(--ink-soft); white-space: pre-wrap; }
.selected-course-line { padding: 13px 15px; border-radius: 12px; background: var(--paper); margin: 0 0 20px; font-weight: 700; }
.privacy-note { color: var(--ink-soft); font-size: 12px; margin: 12px 0 0; }
.booking-submit { min-width: 126px; flex-direction: column; gap: 1px; line-height: 1.2; padding-block: 8px; text-align: center; }

.booking-page { max-width: 930px; margin: 30px auto 0; animation: rise .5s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(15px); } }
.booking-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }.booking-top .week-label { color: var(--ink-soft); }
.booking-card { background: var(--cream); border: 1px solid var(--line); border-radius: 42px 42px 14px 42px; overflow: hidden; box-shadow: var(--shadow); }
.booking-status { padding: 38px 42px; color: white; background: var(--leaf); display: flex; justify-content: space-between; align-items: center; gap: 24px; }.booking-status > div:first-child { min-width: 0; }
.booking-status.review { background: #7a5a25; }.booking-status.rejected, .booking-status.expired { background: #71534c; }.booking-status.confirmed { background: #245642; }
.booking-status h1 { font: 700 clamp(30px, 5vw, 48px) var(--display); margin: 0 0 8px; }.booking-status p { margin: 0; color: rgba(255,255,255,.75); }
.countdown { flex: 0 0 auto; text-align: center; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; width: 120px; height: 120px; display: grid; place-content: center; }
.countdown strong { display: block; font-size: 29px; font-variant-numeric: tabular-nums; letter-spacing: .03em; }.countdown small { font-size: 10px; letter-spacing: .1em; opacity: .7; }
.booking-body { padding: 38px 42px 44px; }
.booking-summary { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 12px; margin-bottom: 34px; }
.summary-item { border-top: 2px solid var(--ink); padding-top: 10px; }.summary-item span { color: var(--ink-soft); display: block; font-size: 11px; margin-bottom: 5px; }.summary-item strong { font-family: var(--display); font-size: 17px; }
.payment-layout { max-width: 700px; margin-inline: auto; display: grid; grid-template-columns: 1fr; gap: 32px; }
.section-title { font: 700 27px var(--display); margin: 0 0 18px; }
.bank-list { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.bank-row { display: grid; grid-template-columns: 130px 1fr auto; align-items: center; gap: 12px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.bank-row:last-child { border: 0; }.bank-row span { font-size: 11px; color: var(--ink-soft); }.bank-row strong { font-size: 13px; overflow-wrap: anywhere; }.copy-button { border: 0; background: transparent; color: var(--tomato-dark); font-size: 11px; font-weight: 800; cursor: pointer; }
.reference-box { margin-top: 14px; background: var(--sun); border-radius: 18px 18px 6px 18px; padding: 18px; }.reference-box span { font-size: 11px; }.reference-value { font: 700 22px var(--display); display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-top: 7px; overflow-wrap: anywhere; }
.upload-panel { border: 1px solid var(--line); border-radius: 18px; padding: 20px; background: var(--paper); }
.upload-guide { margin: 0 0 14px; font-size: 13px; font-weight: 700; color: var(--leaf); }
.upload-drop { position: relative; min-height: 180px; padding: 22px 16px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; cursor: pointer; border: 2px dashed var(--leaf); border-radius: 14px; background: var(--cream); transition: .18s; }
.upload-drop:hover, .upload-drop:focus-within, .upload-drop.has-file { background: #fff; border-style: solid; }
.upload-symbol { width: 38px; height: 38px; display: grid; place-items: center; margin-bottom: 10px; border-radius: 50%; background: var(--leaf); color: white; font-size: 27px; line-height: 1; }
.upload-drop b { display: block; font-family: var(--display); font-size: 18px; }.upload-drop small { display: block; color: var(--ink-soft); margin-top: 6px; line-height: 1.5; }
.upload-select { display: inline-block; margin-top: 14px; padding: 8px 18px; border-radius: 999px; background: var(--sun); color: var(--ink); font-size: 13px; font-weight: 800; }
.upload-drop input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.upload-drop:focus-within { outline: 3px solid rgba(231, 91, 59, .3); outline-offset: 2px; }
.file-name { margin: 12px 0; font-size: 12px; color: var(--ink-soft); text-align: center; overflow-wrap: anywhere; }
.upload-panel .button { width: 100%; }
.payment-tip { font-size: 12px; line-height: 1.7; color: var(--ink-soft); margin-top: 14px; }
.result-panel { text-align: center; padding: 45px 10px 20px; }.result-mark { width: 82px; height: 82px; margin: 0 auto 18px; border-radius: 50%; background: var(--paper-deep); display: grid; place-items: center; font: 700 35px var(--display); }.result-panel h2 { font: 700 32px var(--display); margin: 0 0 10px; }.result-panel p { color: var(--ink-soft); line-height: 1.8; }
footer { max-width: 1250px; margin: 0 auto; padding: 34px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 11px; position: relative; z-index: 1; } footer span { font: 700 16px var(--display); color: var(--ink); } footer p { margin: 0; }

@media (max-width: 900px) {
  .hero { min-height: 340px; }
  .booking-summary { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .desktop-calendar { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
}
@media (min-width: 1024px) and (max-width: 1199px) {
  .calendar-shell { padding: 28px 22px; }
  .day-column { padding: 8px; }
  .day-column-head { display: grid; gap: 2px; }
  .course-chip { padding: 8px; }
  .course-chip b { font-size: 13px; }
}
@media (max-width: 767px) {
  .site-header { padding: 16px 18px; }.site-return { padding: 8px 10px; font-size: 11px; }.header-note { display: none; }
  main { padding: 0 14px 55px; }
  .hero { min-height: 0; padding: 44px 25px; border-radius: 32px 32px 9px 32px; align-items: flex-start; }
  .hero h1 { font-size: clamp(34px, 10vw, 54px); }.hero-intro { font-size: 14px; margin-top: 24px; padding-right: 20px; }
  .calendar-shell { margin-top: 18px; padding: 24px 0 28px; border-radius: 12px 30px 30px 30px; }
  .calendar-toolbar { align-items: center; padding: 0 20px; }.calendar-toolbar h2 { font-size: 28px; }.calendar-toolbar .eyebrow { display: none; }.week-label { font-size: 11px; }.grade-filter { min-width: 116px; }.grade-filter select { width: 100%; }
  .desktop-calendar { display: none; }.mobile-calendar { display: block; }
  .date-strip { display: flex; overflow-x: auto; gap: 9px; padding: 3px 20px 16px; scrollbar-width: none; scroll-snap-type: x mandatory; }.date-strip::-webkit-scrollbar { display: none; }
  .date-pill { flex: 0 0 68px; min-height: 73px; border: 1px solid rgba(255,255,255,.15); background: transparent; color: white; border-radius: 20px 20px 7px 20px; scroll-snap-align: start; cursor: pointer; }.date-pill span, .date-pill strong { display: block; }.date-pill span { font-size: 10px; opacity: .6; }.date-pill strong { font: 700 19px var(--display); margin-top: 3px; }.date-pill.active { background: var(--sun); color: var(--ink); border-color: var(--sun); transform: rotate(-2deg); }.date-pill.active span { opacity: .75; }
  .mobile-course-list { padding: 0 20px; display: grid; gap: 10px; }.mobile-course-card { border: 0; text-align: left; padding: 18px; color: var(--ink); background: var(--cream); border-radius: 22px 22px 7px 22px; display: grid; grid-template-columns: 68px 1fr auto; gap: 14px; align-items: center; cursor: pointer; }.mobile-course-time { font: 700 20px var(--display); }.mobile-course-card h3 { margin: 0; font: 700 17px var(--display); }.mobile-course-card p { margin: 5px 0 0; color: var(--ink-soft); font-size: 11px; }.mobile-course-seat { text-align: right; color: var(--tomato-dark); font-size: 11px; font-weight: 800; }.mobile-course-seat strong { display: block; color: var(--ink); font-size: 15px; margin-bottom: 5px; }
  .course-detail-meta { grid-template-columns: 1fr; }.detail-stat { display: flex; justify-content: space-between; align-items: center; }.detail-stat span { margin: 0; }
  .booking-page { margin-top: 12px; }.booking-top { padding: 0 4px; }.booking-card { border-radius: 30px 30px 9px 30px; }.booking-status { padding: 28px 22px; align-items: flex-start; flex-direction: column; gap: 18px; }.booking-status h1 { font-size: 30px; }.countdown { width: auto; height: auto; min-height: 52px; border-radius: 999px; padding: 8px 16px; display: flex; align-items: baseline; gap: 10px; }.countdown strong { font-size: 22px; }.booking-body { padding: 26px 20px 32px; }.booking-summary { grid-template-columns: 1fr 1fr; margin-bottom: 28px; }.summary-item strong { font-size: 14px; }.bank-row { grid-template-columns: 96px 1fr auto; padding-inline: 12px; }.reference-value { font-size: 18px; }
  footer { margin-inline: 14px; padding: 25px 3px; display: block; } footer p { margin-top: 8px; }
}
@media (max-width: 420px) {
  .calendar-toolbar { align-items: stretch; flex-direction: column; gap: 14px; }
  .grade-filter { width: 100%; }
  .date-pill { min-height: 58px; }
  .bank-row { grid-template-columns: minmax(0, 1fr) auto; gap: 6px 10px; }
  .bank-row span { grid-column: 1 / -1; }
  .bank-row strong { grid-column: 1; }
  .bank-row .copy-button { grid-column: 2; grid-row: 2; }
}
.reservation-callout { display: grid; justify-items: center; gap: 9px; margin: 24px auto 0; padding: 19px; border: 1px solid #c7d8c8; border-radius: 16px; background: #edf5ec; max-width: 460px; }
.reservation-callout span { color: var(--ink-soft); font-size: 12px; }
.reservation-callout strong { color: var(--leaf-dark); font-size: clamp(12px, 2.5vw, 17px); overflow-wrap: anywhere; }
.reservation-dialog-inner { width: min(450px, calc(100vw - 30px)); max-height: calc(100dvh - 30px); overflow-y: auto; }
.reservation-dialog-note, .reservation-save-note { color: var(--ink-soft); font-size: 12px; line-height: 1.65; }
.reservation-preview { width: 100%; height: auto; display: block; border-radius: 13px; box-shadow: 0 10px 24px rgba(23,61,50,.13); }
.reservation-download { display: block; text-align: center; margin-top: 15px; text-decoration: none; }
#shareReservation[hidden] { display: none; }
.reservation-save-note { margin-bottom: 0; }