:root { --signup-purple: #6e5cff; --signup-pink: #d43fa4; }
[hidden] { display: none !important; }

.signup-page { min-height: 100vh; padding: 130px clamp(22px, 7vw, 110px) 120px; background: #fbfbfd; }
.signup-hero { max-width: 1040px; padding: 38px 0 86px; }
.signup-hero h1 { margin: 0; font-size: clamp(58px, 8vw, 116px); line-height: .92; letter-spacing: -.07em; }
.signup-hero h1 span { background: linear-gradient(105deg, #0071e3, #6e5cff 46%, #d43fa4 82%); background-clip: text; -webkit-background-clip: text; color: transparent; }
.signup-hero > p:last-child { max-width: 720px; margin: 34px 0 0; color: var(--muted); font-size: clamp(20px, 2.2vw, 28px); line-height: 1.35; letter-spacing: -.025em; }

.access-card, .booking-card { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 7vw, 110px); padding: clamp(32px, 5vw, 68px); border: 1px solid var(--line); border-radius: 34px; background: #fff; box-shadow: 0 30px 80px rgba(29,29,31,.07); }
.card-kicker { margin: 0 0 18px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase; }
.access-card h2, .booking-toolbar h2, .booking-card h2 { margin: 0; font-size: clamp(36px, 4vw, 58px); line-height: 1; letter-spacing: -.05em; }
.access-card > div > p:last-child, .booking-summary > p:last-child { max-width: 460px; margin: 22px 0 0; color: var(--muted); font-size: 17px; line-height: 1.5; }
.access-form { align-self: center; }
.access-form label, .booking-form label { display: grid; gap: 9px; color: #55555a; font-size: 13px; font-weight: 620; }
.field-hint { color: #929297; font-size: 11px; font-weight: 500; }
.input-action-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; }
input, textarea, button { font: inherit; }
input, textarea { width: 100%; border: 1px solid rgba(29,29,31,.14); border-radius: 14px; background: #fbfbfd; color: var(--ink); outline: none; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease; }
input { min-height: 52px; padding: 0 16px; }
textarea { resize: vertical; min-height: 100px; padding: 14px 16px; line-height: 1.45; }
input:focus, textarea:focus { border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgba(0,113,227,.1); }
button { border: 0; cursor: pointer; }
.input-action-row button, .primary-submit { min-height: 52px; padding: 0 22px; border-radius: 14px; background: var(--ink); color: #fff; font-size: 14px; font-weight: 680; }
.input-action-row button:disabled, .primary-submit:disabled { cursor: wait; opacity: .55; }

.booking-area { margin-top: 96px; }
.booking-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.type-tabs { display: flex; gap: 7px; padding: 5px; border-radius: 999px; background: #ececf0; }
.type-tab { min-height: 40px; padding: 0 17px; border-radius: 999px; background: transparent; color: #626267; font-size: 13px; font-weight: 650; }
.type-tab[aria-selected="true"] { background: #fff; color: var(--ink); box-shadow: 0 3px 12px rgba(0,0,0,.08); }
.availability-key { display: flex; align-items: center; gap: 22px; margin: 42px 0 20px; padding-top: 18px; border-top: 1px solid var(--line); color: #77777c; font-size: 12px; }
.availability-key span { display: inline-flex; align-items: center; gap: 7px; }
.availability-key i { width: 8px; height: 8px; border-radius: 50%; }
.open-dot { background: #21a366; }
.taken-dot { background: #c7c7cc; }
#refresh-button { margin-left: auto; padding: 7px 0; background: transparent; color: var(--blue); font-size: 12px; }

.manage-booking { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 54px; margin-bottom: 20px; padding: 26px 28px; border: 1px solid #d9e6f4; border-radius: 22px; background: linear-gradient(135deg,#f4f9ff,#faf6ff); }
.manage-booking h3 { margin: 0 0 8px; font-size: 24px; letter-spacing: -.035em; }
.manage-booking p { margin: 0; color: #73737a; font-size: 13px; line-height: 1.5; }
.manage-booking .card-kicker { margin-bottom: 8px; color: #6e5cff; }
.manage-booking form { align-self: center; }
.manage-booking form > label { display: block; margin-bottom: 8px; color: #55555a; font-size: 12px; font-weight: 650; }
.manage-results { grid-column: 1 / -1; display: grid; gap: 8px; padding-top: 18px; border-top: 1px solid rgba(80,80,100,.12); }
.manage-results article { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 16px; border-radius: 15px; background: #fff; }
.manage-results span,.manage-results strong,.manage-results small { display: block; }
.manage-results span { color: #6e5cff; font-size: 10px; font-weight: 750; text-transform: uppercase; }
.manage-results strong { margin: 4px 0; font-size: 14px; }
.manage-results small { color: #77777c; }
.manage-results button { padding: 10px 15px; border-radius: 999px; background: var(--ink); color: #fff; font-size: 12px; font-weight: 700; white-space: nowrap; }
.manage-empty { grid-column: 1 / -1; padding: 12px 0; }

.session-list { display: grid; gap: 16px; }
.session-card { display: grid; grid-template-columns: minmax(160px,.42fr) minmax(0,1.58fr); gap: 30px; padding: 28px; border: 1px solid var(--line); border-radius: 26px; background: #fff; }
.session-heading p { margin: 0 0 9px; color: var(--blue); font-size: 12px; font-weight: 680; }
.session-heading h3 { margin: 0; font-size: 27px; letter-spacing: -.04em; }
.capacity-badge { display: inline-flex; width: fit-content; align-items: baseline; gap: 7px; margin-top: 16px; padding: 9px 13px; border-radius: 999px; background: #e8f7ee; color: #147a43; }
.capacity-badge strong { font-size: 25px; line-height: 1; letter-spacing: -.04em; }
.capacity-badge small { font-size: 12px; font-weight: 700; }
.capacity-badge.full { background: #f1f1f3; color: #77777c; }
.slot-grid { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 9px; }
.slot-button { min-height: 84px; padding: 10px; border: 1px solid rgba(29,29,31,.1); border-radius: 14px; background: #f5f5f7; color: var(--ink); text-align: left; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.slot-button:hover:not(:disabled) { transform: translateY(-2px); border-color: rgba(0,113,227,.4); background: #edf6ff; }
.slot-button strong, .slot-button span { display: block; }
.slot-button strong { font-size: 13px; }
.slot-button span { overflow: hidden; margin-top: 5px; color: #77777c; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.slot-button .slot-topic { color: #9a9a9f; font-size: 10px; }
.slot-button.taken { cursor: not-allowed; background: #f0f0f2; color: #9a9a9f; }
.slot-button.selected { border-color: var(--blue); background: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(0,113,227,.22); }
.slot-button.selected span { color: rgba(255,255,255,.75); }

.booking-card { margin-top: 26px; scroll-margin-top: 82px; }
.booking-summary { padding-right: 20px; }
.booking-form { display: grid; gap: 22px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.privacy-note { margin: -2px 0 0; color: #86868b; font-size: 12px; line-height: 1.5; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; }
.form-actions #cancel-selection { padding: 0 16px; background: transparent; color: #66666b; font-size: 13px; }
.status-message { position: fixed; left: 50%; bottom: 24px; z-index: 100; max-width: min(520px, calc(100vw - 32px)); padding: 14px 20px; border-radius: 999px; background: #1d1d1f; color: #fff; box-shadow: 0 14px 38px rgba(0,0,0,.2); font-size: 13px; opacity: 0; pointer-events: none; transform: translate(-50%, 12px); transition: opacity .2s ease, transform .2s ease; }
.status-message.show { opacity: 1; transform: translate(-50%, 0); }
.status-message.error { background: #b42318; }
.status-message.success { background: #157347; }
.loading-card { padding: 44px; border-radius: 24px; background: #fff; color: #86868b; text-align: center; }

@media (max-width: 900px) {
  .access-card, .booking-card { grid-template-columns: 1fr; }
  .manage-booking { grid-template-columns: 1fr; }
  .manage-results { grid-column: 1; }
  .session-card { grid-template-columns: 1fr; }
  .slot-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (max-width: 620px) {
  .signup-page { padding: 105px 18px 84px; }
  .signup-hero { padding-bottom: 58px; }
  .access-card, .booking-card { padding: 26px 20px; border-radius: 24px; }
  .input-action-row { grid-template-columns: 1fr; }
  .booking-toolbar { align-items: start; flex-direction: column; }
  .type-tabs { width: 100%; }
  .type-tab { flex: 1; padding: 0 10px; }
  .availability-key { flex-wrap: wrap; }
  #refresh-button { margin-left: 0; width: 100%; text-align: left; }
  .session-card { padding: 20px; border-radius: 20px; }
  .slot-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .field-grid { grid-template-columns: 1fr; }
  .form-actions { align-items: stretch; flex-direction: column-reverse; }
  .form-actions button { min-height: 48px; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }