:root { color-scheme: dark; font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; color: #dce3ed; background: #06090d; font-synthesis: none; }
* { box-sizing: border-box; }
body.sessions-shell { margin: 0; min-width: 280px; background: radial-gradient(ellipse at 85% 0%, #19233632, transparent 48%); }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
button:disabled { cursor: default; opacity: .4; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid #d7b989; outline-offset: 4px; border-radius: 2px; }
h1, h2, p { margin: 0; }
.sessions-shell main { width: min(100% - 64px, 1160px); margin-inline: auto; padding-top: 18px; padding-bottom: 40px; }
.session-breadcrumb { display:flex; align-items:center; flex-wrap:wrap; gap:10px; margin-bottom:15px; color:#8796a8; font-size:11px; }
.session-breadcrumb a { display:inline-flex; align-items:center; min-height:44px; }
.session-breadcrumb a:hover { color:#d7b989; }
.session-breadcrumb [aria-current] { color:#dce3ed; }
.intro { position: relative; }
.eyebrow { font: 10px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .13em; color: #9babbd; }
h1 { margin-top: 0; font-size: clamp(23px, 4vw, 26px); font-weight: 550; letter-spacing: -.055em; line-height: 1.4; }
.lead { margin-top: 9px; font-size: 13px; line-height: 1.8; }
.subtle { font-size: 12px; line-height: 1.9; color: #9aa6b7; }
.intro > .subtle { margin-top: 6px; }
.status-bar { display: flex; align-items: center; justify-content: space-between; gap: 20px; border-block: 1px solid #28323f; margin-top: 24px; padding: 5px 0; min-height: 56px; }
#session-status { font-size: 12px; line-height: 1.9; color: #b2bfd1; }
.text-button { flex-shrink: 0; border: 0; background: transparent; padding: 12px 4px; color: #bbc7d9; font-size: 12px; min-height: 44px; }
.text-button:hover:enabled { color: #f2f5fa; }
.section-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-block: 21px 13px; }
h2 { font-size: 15px; font-weight: 500; line-height: 1.6; letter-spacing: -.02em; }
#session-count { color: #8e9db3; font-size: 12px; margin-left: 8px; }
.section-heading p { font-size: 10px; color: #9aa6b7; }
.session-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid #28323f; }
.session-card { display: flex; align-items: center; justify-content: space-between; gap: 26px; padding: 18px 20px; border: 1px solid #19222d; border-top: 0; background: #0b101780; border-radius: 0; }
.session-card > div { flex: 1; min-width: 0; }
.session-card.current { border-left: 2px solid #c8d4e2; padding-left: 19px; background: linear-gradient(100deg, #17212d90, #0b101790 76%); }
.session-title { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 13px; line-height: 1.8; }
.current-badge { font-size: 10px; color: #c8d4e2; border: 1px solid #94abc640; border-radius: 2px; padding: 1px 7px; }
.session-times { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px 16px; margin: 12px 0 0; font-size: 11px; line-height: 1.7; color: #a6b1c2; }
.session-times dt { grid-row: 1; }
.session-times dd { grid-row: 2; overflow-wrap: anywhere; }
.session-times dt:nth-of-type(1), .session-times dd:nth-of-type(1) { grid-column: 1; }
.session-times dt:nth-of-type(2), .session-times dd:nth-of-type(2) { grid-column: 2; }
.session-times dt:nth-of-type(3), .session-times dd:nth-of-type(3) { grid-column: 3; }
.session-times dt { color: #8e9bae; }
.session-times dd { margin: 0; }
.session-card > button { flex-shrink: 0; }
.secondary-button, .primary-button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid #a2b6cf45; border-radius: 3px; min-height: 44px; padding: 9px 14px; background: #b2c7e008; color: #c7d2e3; font-size: 12px; line-height: 1.7; text-align: center; }
.secondary-button:hover:enabled, a.secondary-button:hover { border-color: #b7c9e17d; background: #b2c7e011; }
.primary-button { background: #c4d0e0; color: #0d1521; border-color: transparent; font-weight: 500; }
.primary-button:hover:enabled { background: #e0e7f1; }
.danger-button { background: #d2c2b4; color: #211a14; }
.danger-button:hover:enabled { background: #ecdbce; }
.bulk-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 19px; }
.action-panel { margin-top: 24px; padding: 22px; border: 1px solid #cdbdaa46; border-left: 2px solid #d7b989; border-radius: 2px; background: linear-gradient(110deg, #c0a68808, #0b101780); }
.action-panel h2 { margin-top: 11px; font-size: 20px; width: fit-content; max-width: 100%; }
#action-description { margin-top: 13px; font-size: 13px; color: #c4c9d1; line-height: 1.9; }
#action-target { margin-top: 8px; }
.confirmation-note { margin-top: 15px; padding-left: 13px; border-left: 1px solid #bcb3a64d; color: #beb1a3; font-size: 12px; line-height: 1.9; }
.confirmation-actions { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; margin-top: 23px; }
.signed-out { padding-block: 32px 6px; }
.signed-out p { margin-top: 12px; font-size: 13px; line-height: 1.9; color: #a6b1c2; }
.signed-out a { margin-top: 22px; }
.boundary-note { margin-top: 30px; padding-top: 18px; border-top: 1px solid #19222d; max-width: 850px; }
.boundary-note summary { display:list-item; width:fit-content; min-height:44px; padding:12px 0; font-size:12px; color:#b6c0cf; cursor:pointer; }
.boundary-note summary:hover { color:#d7b989; }
.boundary-note p { font-size: 12px; color: #98a4b7; line-height: 1.95; margin-top: 10px; word-break: keep-all; overflow-wrap: anywhere; }
.noscript-note { margin-top: 20px; color: #d4b29d; font-size: 13px; }
body[data-session-state="error"] #session-status { color: #cf8f84; }
body[data-session-state="loading"] .status-bar { border-left: 2px solid #8796a8; padding-left: 12px; }
button, .session-breadcrumb a, .session-card { transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease; }
@media (max-width: 760px) {
  .sessions-shell main { width: calc(100% - 32px); padding-top: 10px; }
  .session-breadcrumb { margin-bottom:10px; }
  .status-bar { align-items: flex-start; gap: 14px; margin-top: 22px; }
  #session-status { padding-block: 9px; }
  .session-card { align-items: flex-start; flex-direction: column; gap: 13px; padding: 17px; }
  .session-card.current { padding-left: 16px; }
  .session-card > div { width: 100%; }
  .session-card > button { width: 100%; }
  .session-times { grid-template-columns: auto minmax(0, 1fr); gap: 5px 12px; }
  .session-times dt:nth-of-type(n) { grid-column: 1; grid-row: auto; }
  .session-times dd:nth-of-type(n) { grid-column: 2; grid-row: auto; }
  .bulk-actions > button { flex: 1 1 230px; }
  .action-panel { padding: 20px; }
  .confirmation-actions .primary-button { flex: 1 1 230px; }
  .confirmation-actions .text-button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }