:root{--navy:#010035;--red:#D0271D;--pink:#FFE5E7;--light:#F2F3F3;--gray:#54565A;--green:#24754A;--amber:#A65F00;--danger:#B00020;--line:#D8DADD;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--light);color:#202124;font-family:Arial,Helvetica,sans-serif;padding-bottom:24px}
a{color:inherit}.app-header{position:sticky;top:0;z-index:50;background:var(--navy);color:#fff;padding:12px 14px;box-shadow:0 2px 12px rgba(0,0,0,.25)}
.header-inner{max-width:1100px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;align-items:center;gap:10px}.brand img{width:44px;height:44px;border-radius:11px}.brand h1{margin:0;font-size:19px}.brand p{margin:3px 0 0;font-size:12px;opacity:.82}
.header-actions{display:flex;gap:8px;align-items:center}.header-actions a,.header-actions button{border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.12);color:#fff;border-radius:9px;padding:9px 11px;text-decoration:none;font-weight:800}
main{max-width:1100px;margin:auto;padding:14px}.status-card{background:#fff;border-radius:16px;padding:15px;box-shadow:0 6px 22px rgba(1,0,53,.11);margin-bottom:13px}
.status-label{font-size:11px;color:var(--red);font-weight:900;text-transform:uppercase;letter-spacing:.06em}.status-title{font-size:22px;font-weight:900;color:var(--navy);margin:4px 0}.status-meta{font-size:14px;color:var(--gray)}.status-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.status-actions a,.status-actions button{border:0;border-radius:11px;padding:12px;text-align:center;text-decoration:none;font-weight:900}.primary{background:var(--red);color:#fff}.secondary{background:var(--light);color:var(--navy)}
.location-status{margin-top:10px;padding:9px;border-radius:10px;background:#EDF8F2;color:#185E3C;font-size:12px;display:none}.location-status.show{display:block}
.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:12px 0}.tab{border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:10px;padding:10px 5px;font-weight:900}.tab.active{background:var(--navy);color:#fff}
.layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(330px,.95fr);gap:14px;align-items:start}.panel{background:#fff;border-radius:16px;box-shadow:0 6px 22px rgba(1,0,53,.1);overflow:hidden}.panel-heading{display:flex;justify-content:space-between;align-items:center;padding:13px 15px;border-bottom:1px solid var(--line)}.panel-heading h2{font-size:17px;color:var(--navy);margin:0}.panel-heading span{font-size:12px;color:var(--gray)}
.day-section{padding:0 12px 12px}.day-section.js-hidden{display:none}.day-heading{display:flex;justify-content:space-between;align-items:center;padding:13px 3px 5px}.day-heading h2{margin:0;color:var(--navy);font-size:18px}.day-heading span{color:var(--gray);font-size:12px}
.day-alert{margin:8px 0;padding:11px;border-left:5px solid var(--amber);background:#FFF7EA;border-radius:9px;font-size:13px}.day-alert.danger{border-color:var(--danger);background:#FFF0F3}
.session-card{display:flex;gap:11px;border:1px solid var(--line);border-radius:13px;padding:11px;margin:10px 0;background:#fff;scroll-margin-top:85px}.session-card.current{border:2px solid var(--red);background:#FFF9F9}.session-card.conflict-card{border:2px solid var(--amber)}
.session-number{flex:0 0 31px;width:31px;height:31px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}.session-content{min-width:0;flex:1}.session-time{font-size:12px;color:var(--red);font-weight:900}.session-card h3{font-size:16px;line-height:1.25;color:var(--navy);margin:4px 0}.session-location{font-size:13px;color:var(--gray);line-height:1.4}.session-note{margin-top:8px;padding:8px;border-radius:8px;background:var(--pink);color:var(--navy);font-size:12px}.session-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px}.session-actions a{background:var(--light);color:var(--navy);padding:7px 9px;border-radius:8px;text-decoration:none;font-size:12px;font-weight:800}
.campus-wrap{position:sticky;top:86px}.campus-map{position:relative;height:405px;background:#F8F8FA;overflow:hidden}.campus-map svg{width:100%;height:100%;display:block}.map-layer.js-hidden{display:none}.map-pin{position:absolute;transform:translate(-50%,-50%);width:33px;height:33px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--navy);color:#fff;border:3px solid #fff;text-decoration:none;font-weight:900;box-shadow:0 3px 9px rgba(0,0,0,.28);z-index:4}.map-pin:hover,.map-pin:focus{background:var(--red)}
.user-pin{position:absolute;transform:translate(-50%,-50%);width:19px;height:19px;border-radius:50%;background:var(--green);border:3px solid #fff;box-shadow:0 0 0 5px rgba(36,117,74,.25);display:none;z-index:8}.user-pin.show{display:block}
.map-caption{padding:10px 13px;font-size:12px;color:var(--gray);border-top:1px solid var(--line)}.fallback-note{padding:10px 14px;font-size:12px;color:var(--gray);background:#FAFAFB;border-bottom:1px solid var(--line)}
#help{display:none;position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.58);align-items:flex-end;justify-content:center}#help:target{display:flex}.help-card{width:100%;max-width:620px;background:#fff;border-radius:20px 20px 0 0;padding:20px;max-height:88vh;overflow:auto}.help-card h2{color:var(--navy);margin-top:0}.help-card li,.help-card p{line-height:1.5}.close-help{float:right;background:var(--light);color:var(--navy);text-decoration:none;padding:8px 11px;border-radius:8px;font-weight:900}
.install-hint{background:#fff;border-radius:13px;padding:12px;margin:13px 0;font-size:13px;box-shadow:0 4px 16px rgba(1,0,53,.08)}.offline-badge{display:none;position:fixed;right:12px;top:78px;background:var(--gray);color:#fff;border-radius:8px;padding:7px 9px;font-size:11px;z-index:80}.offline .offline-badge{display:block}
@media(max-width:800px){.header-inner{align-items:flex-start}.brand p{display:none}.header-actions a,.header-actions button{padding:8px;font-size:12px}.layout{grid-template-columns:1fr}.campus-wrap{position:static}.campus-map{height:330px}.status-actions{grid-template-columns:1fr}.brand h1{font-size:16px}main{padding:10px}.map-panel{order:-1}}


/* v3 additive enhancements */
.version-badge{display:inline-flex;align-items:center;justify-content:center;padding:4px 7px;border-radius:999px;background:#FFE5E7;color:#010035;font-size:11px;font-weight:900}
#installBtn{display:none}.ready#installBtn{display:inline-block}
.utility-panel{background:#fff;border-radius:14px;padding:12px;margin:12px 0;box-shadow:0 4px 16px rgba(1,0,53,.08)}
.utility-grid{display:grid;grid-template-columns:minmax(220px,1fr) repeat(3,auto);gap:8px;align-items:end}
.search-box{display:flex;flex-direction:column;gap:5px;color:#54565A;font-size:11px;font-weight:900;text-transform:uppercase}
.search-box input{width:100%;border:1px solid #D8DADD;border-radius:9px;padding:10px 11px;font-size:14px;color:#010035;background:#fff}
.utility-grid button{border:1px solid #D8DADD;border-radius:9px;background:#F2F3F3;color:#010035;padding:10px;font-weight:900}
.filter-row{display:flex;gap:18px;flex-wrap:wrap;margin-top:10px;color:#54565A;font-size:13px}
.travel-card{display:none;background:linear-gradient(135deg,#010035,#242278);color:#fff;border-radius:16px;padding:15px 17px;margin-bottom:14px;align-items:center;justify-content:space-between;gap:15px;box-shadow:0 6px 22px rgba(1,0,53,.16)}
.travel-card.show{display:flex}.travel-card h2{margin:3px 0 5px;font-size:18px}.travel-card p{margin:0;opacity:.84;font-size:13px}.travel-kicker{font-size:11px;text-transform:uppercase;font-weight:900;color:#FFE5E7}.travel-card a{background:#fff;color:#010035;text-decoration:none;border-radius:10px;padding:11px 13px;font-weight:900;white-space:nowrap}
.status-chip{display:inline-flex;margin:5px 0 2px;padding:4px 8px;border-radius:999px;background:#F2F3F3;color:#54565A;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.04em}
.status-chip.attended{background:#E7F6ED;color:#185E3C}.status-chip.skipped{background:#FFF0F3;color:#B00020}
.session-card.attended{border-color:#87C9A5}.session-card.skipped{opacity:.68}.session-card.filtered-out{display:none}
.session-actions button.session-tool{background:#F2F3F3;color:#010035;padding:7px 9px;border-radius:8px;border:0;font-size:12px;font-weight:800}
.session-details{margin-top:9px;border-top:1px solid #E3E4E6;padding-top:8px}.session-details summary{cursor:pointer;color:#010035;font-size:12px;font-weight:900}
.details-grid{display:grid;grid-template-columns:160px 1fr;gap:10px;margin-top:9px}.details-grid label{display:flex;flex-direction:column;gap:5px;color:#54565A;font-size:11px;font-weight:900;text-transform:uppercase}
.details-grid select,.details-grid textarea{border:1px solid #D8DADD;border-radius:8px;padding:9px;background:#fff;color:#202124;font:inherit;text-transform:none}.details-grid textarea{resize:vertical;min-height:72px}
.app-footer{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 4px 6px;color:#54565A;font-size:11px}.app-footer strong{color:#010035}
@media(max-width:800px){
  .utility-grid{grid-template-columns:1fr 1fr}.search-box{grid-column:1/-1}
  .travel-card{align-items:flex-start;flex-direction:column}.travel-card a{width:100%;text-align:center}
  .details-grid{grid-template-columns:1fr}.header-actions{flex-wrap:wrap;justify-content:flex-end}
}


/* v4 linked agenda/map number selection */
.session-number{
  border:0;
  padding:0;
  font:inherit;
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
  transition:background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}
.map-pin{
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
  transition:background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}
.session-card.is-selected{
  border-color:var(--red);
  box-shadow:0 0 0 2px rgba(208,39,29,.14);
}
.session-number.is-selected{
  background:var(--red);
  color:#fff;
  transform:scale(1.12);
  box-shadow:0 4px 13px rgba(208,39,29,.34);
}
.map-pin.is-selected{
  background:var(--red);
  color:#fff;
  transform:translate(-50%,-50%) scale(1.14);
  box-shadow:0 0 0 4px rgba(208,39,29,.20),0 5px 14px rgba(0,0,0,.30);
  z-index:30;
}
.session-number:hover,
.session-number:focus-visible{
  background:var(--red);
  color:#fff;
}
.session-number:focus-visible,
.map-pin:focus-visible{
  outline:3px solid #24A148;
  outline-offset:3px;
}
.selection-status{
  margin-top:10px;
  padding:9px 11px;
  border-radius:9px;
  background:#F2F3F3;
  color:#54565A;
  font-size:12px;
  font-weight:800;
}


/* Shared cross-page navigation */
.header-actions a {
  white-space: nowrap;
}
.header-actions a:hover,
.header-actions a:focus-visible {
  background: var(--red);
  border-color: var(--red);
}