/* ══════════════════════════════════
   PROGRAM PAGE CSS
   52nd KSDC 2026
══════════════════════════════════ */

body{background:#f7f5f0}

/* Dates overview */
.dates-overview{background:#fff;padding:28px 40px;border-bottom:1px solid #ede8de}
.do-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.do-item{display:flex;align-items:center;gap:12px;padding:0 24px}
.do-item+.do-item{border-left:1px solid #ede8de}
.do-date-box{width:52px;height:52px;background:var(--navy);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0}
.do-day-num{font-family:'Playfair Display',serif;font-size:20px;font-weight:900;color:var(--gold);line-height:1}
.do-month{font-size:9px;font-weight:700;color:rgba(255,255,255,0.6);text-transform:uppercase;letter-spacing:1px;margin-top:1px}
.do-label{font-size:11px;font-weight:700;color:var(--gold);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:2px}
.do-title{font-size:13.5px;font-weight:700;color:var(--navy)}
.do-sub{font-size:11.5px;color:#888;margin-top:1px}

/* Tabs */
.tab-section{background:#fff;padding:32px 40px 0;border-bottom:1px solid #ede8de;position:sticky;top:100px;z-index:90}
.tab-inner{max-width:1100px;margin:0 auto}
.tab-row{display:flex;gap:8px;flex-wrap:wrap}
.tab-btn{display:flex;flex-direction:column;align-items:center;gap:3px;padding:14px 24px;border-radius:10px 10px 0 0;border:1px solid #ede8de;border-bottom:none;background:#f7f5f0;cursor:pointer;transition:all 0.2s;min-width:140px}
.tab-btn:hover{background:#fdf8ec;border-color:rgba(201,168,76,0.4)}
.tab-btn.active{background:var(--navy);border-color:var(--navy)}
.tab-btn .tb-label{font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:#999;transition:color 0.2s}
.tab-btn.active .tb-label{color:var(--gold)}
.tab-btn .tb-date{font-size:14px;font-weight:800;color:var(--navy);transition:color 0.2s}
.tab-btn.active .tb-date{color:#fff}
.tab-btn .tb-tag{font-size:10px;font-weight:600;color:#aaa;transition:color 0.2s}
.tab-btn.active .tb-tag{color:rgba(255,255,255,0.6)}

/* Schedule */
.schedule-section{background:var(--bg-page);padding:0 40px 60px}
.schedule-inner{max-width:1100px;margin:0 auto}
.day-panel{display:none;padding-top:50px}
.day-panel.active{display:block}
.day-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;flex-wrap:wrap;gap:16px}
.day-eyebrow{font-size:11px;font-weight:700;color:var(--gold);letter-spacing:3px;text-transform:uppercase;margin-bottom:4px}
.day-title{font-size:24px;font-weight:800;color:var(--navy);line-height:1.2}
.day-title em{color:var(--gold);font-style:italic;font-family:'Playfair Display',serif}
.day-subtitle{font-size:13px;color:#777;margin-top:4px}
.btn-download{display:inline-flex;align-items:center;gap:8px;background:var(--navy);color:#fff;font-size:13px;font-weight:600;padding:11px 22px;border-radius:7px;transition:all 0.2s}
.btn-download:hover{background:var(--gold);color:var(--navy)}
.btn-download svg{width:15px;height:15px}
.tracks-notice{background:linear-gradient(135deg,rgba(201,168,76,0.1),rgba(201,168,76,0.05));border:1px solid rgba(201,168,76,0.3);border-radius:10px;padding:14px 18px;display:flex;align-items:center;gap:12px;margin-bottom:24px}
.tracks-notice svg{width:18px;height:18px;flex-shrink:0;color:var(--gold)}
.tracks-notice p{font-size:13px;color:var(--navy);font-weight:500}
.tracks-notice p strong{color:var(--gold)}

/* Timeline */
.timeline{display:flex;flex-direction:column;gap:0}
.tl-row{display:grid;grid-template-columns:100px 1fr;gap:0;border-bottom:1px solid #e8e4de;transition:background 0.2s}
.tl-row:last-child{border-bottom:none}
.tl-row:hover{background:rgba(255,255,255,0.7)}
.tl-row.break{opacity:0.7}
.tl-row.break .tl-right{background:rgba(0,0,0,0.02)}
.tl-row.keynote .tl-right{background:rgba(201,168,76,0.06);border-left:3px solid var(--gold)}
.tl-row.social .tl-right{background:rgba(11,27,61,0.04);border-left:3px solid var(--navy)}
.tl-row.ceremony .tl-right{background:rgba(201,168,76,0.1);border-left:3px solid var(--gold-dark)}
.tl-row.workshop .tl-right{background:rgba(26,86,168,0.05);border-left:3px solid var(--navy-light)}
.tl-time{padding:16px 14px 16px 0;display:flex;flex-direction:column;align-items:flex-end;justify-content:center;flex-shrink:0}
.tl-time-val{font-size:12px;font-weight:700;color:var(--navy);white-space:nowrap}
.tl-time-end{font-size:10.5px;color:#aaa;margin-top:2px;white-space:nowrap}
.tl-right{padding:16px 20px;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}
.tl-badge{display:inline-flex;align-items:center;gap:5px;font-size:9.5px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;padding:3px 8px;border-radius:4px;margin-bottom:6px}
.tl-badge.keynote{background:rgba(201,168,76,0.15);color:var(--gold-dark)}
.tl-badge.workshop{background:rgba(26,86,168,0.1);color:var(--navy-light)}
.tl-badge.ceremony{background:rgba(201,168,76,0.2);color:var(--gold-dark)}
.tl-badge.panel{background:rgba(11,27,61,0.08);color:var(--navy)}
.tl-badge.paper{background:rgba(42,122,42,0.1);color:#2a7a2a}
.tl-badge.poster{background:rgba(120,60,180,0.1);color:#783cb4}
.tl-badge.break{background:#f0ebe0;color:#888}
.tl-badge.social{background:rgba(11,27,61,0.1);color:var(--navy)}
.tl-badge.award{background:rgba(201,168,76,0.25);color:var(--gold-dark)}
.tl-session{font-size:14px;font-weight:700;color:var(--navy);line-height:1.35;margin-bottom:4px}
.tl-speaker{font-size:12.5px;color:var(--gold-dark);font-weight:600}
.tl-room{font-size:11.5px;color:#999;margin-top:3px;display:flex;align-items:center;gap:4px}
.tl-room svg{width:11px;height:11px;opacity:0.6}
.tl-tracks{display:flex;gap:8px;flex-wrap:wrap;align-self:center}
.track-pill{font-size:10.5px;font-weight:700;padding:4px 10px;border-radius:20px;white-space:nowrap}
.track-a{background:rgba(11,27,61,0.1);color:var(--navy)}
.track-b{background:rgba(201,168,76,0.15);color:var(--gold-dark)}
.track-c{background:rgba(42,122,42,0.1);color:#2a7a2a}

/* Workshop grid */
.workshop-grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.ws-card{background:#fff;border:1px solid #ede8de;border-radius:12px;padding:22px 20px;transition:transform 0.22s,box-shadow 0.22s,border-color 0.22s}
.ws-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,0.08);border-color:rgba(201,168,76,0.35)}
.ws-time-badge{display:inline-block;background:#f5f0e8;border:1px solid #e8e0d0;border-radius:5px;font-size:10px;font-weight:700;color:var(--navy);padding:3px 9px;margin-bottom:10px;letter-spacing:0.5px}
.ws-title{font-size:14px;font-weight:800;color:var(--navy);margin-bottom:6px;line-height:1.3}
.ws-detail{font-size:12px;color:#777;margin-bottom:4px;display:flex;align-items:center;gap:5px}
.ws-detail svg{width:12px;height:12px;flex-shrink:0;color:var(--gold)}
.ws-icon{width:42px;height:42px;background:rgba(201,168,76,0.1);border-radius:9px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.ws-icon svg{width:22px;height:22px}

/* Evening card */
.evening-card{background:linear-gradient(135deg,#0b1b3d,#162c6a);border-radius:12px;padding:24px 26px;display:flex;align-items:flex-start;gap:16px;margin-top:16px}
.ec-icon{width:46px;height:46px;background:rgba(201,168,76,0.15);border-radius:10px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.ec-icon svg{width:24px;height:24px}
.ec-label{font-size:10px;font-weight:700;color:var(--gold);text-transform:uppercase;letter-spacing:2px;margin-bottom:4px}
.ec-title{font-size:15px;font-weight:800;color:#fff;margin-bottom:4px}
.ec-desc{font-size:12.5px;color:var(--text-muted);line-height:1.6}

/* Responsive */
@media(max-width:1024px){
  .do-inner{grid-template-columns:repeat(2,1fr);gap:16px}
  .do-item{padding:12px 16px;border:1px solid #ede8de;border-radius:10px}
  .do-item+.do-item{border-left:1px solid #ede8de}
  .tab-btn{min-width:120px;padding:12px 16px}
  .workshop-grid-6{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .tab-section{top:70px}
  .tl-row{grid-template-columns:80px 1fr}
}
@media(max-width:600px){
  .schedule-section,.dates-overview,.tab-section{padding-left:20px;padding-right:20px}
  .do-inner{grid-template-columns:1fr}
  .tab-btn{min-width:calc(50% - 4px);padding:10px 12px}
  .workshop-grid-6{grid-template-columns:1fr}
  .tl-row{grid-template-columns:72px 1fr}
  .tl-time-val,.tl-time-end{font-size:10.5px}
}