:root{--background:#0f2030;--foreground:#fff;--muted:#b7cfcf;--nav-disabled:#5a6b6b;--border:#2a4d4d;--accent:#f5d90a;--accent-contrast:#0f2e2e;--max-width:800px}*{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{min-height:100%;color:var(--foreground);background:var(--background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5;display:flex;position:relative}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin-bottom:.5em;line-height:1.25}h1{font-size:2.3em}p{margin-bottom:1em}.site-header{border-bottom:1px solid var(--border)}.site-header-inner{max-width:var(--max-width);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;margin:0 auto;padding:1rem 1.5rem .35rem;display:flex}.site-title{font-size:1.1rem;font-weight:700}.site-nav{gap:1.25rem;display:flex}.nav-current,.nav-disabled{color:var(--nav-disabled)}.site-header-subrow{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem .75rem}.talk-top-nav{gap:.5rem;display:flex}.talk-top-nav-sep{color:var(--nav-disabled)}.site-main{width:100%;max-width:var(--max-width);flex:1;margin:0 auto;padding:2rem 1.5rem;position:relative}.home-tile-bg{z-index:1;pointer-events:none;background-image:url(/tile.png);background-position:calc(50vw - 668px) 0;background-repeat:repeat-y;background-size:260px 492px;width:100%;position:absolute;top:0;bottom:0;left:0}@media (max-width:930px){.home-tile-bg{display:none}}.intro{margin-bottom:2rem}.schedule-list{list-style:none}.schedule-item{padding:.5rem 0}.schedule-item-main{text-indent:-20px;padding-left:20px}.schedule-item-main a{font-weight:600}.schedule-item-author{color:var(--muted)}.presentation-author{flex-direction:column;gap:.1rem;margin-bottom:.75rem;display:flex}.presentation-author-name{color:var(--foreground);margin-bottom:.1rem;font-size:1.3rem;font-weight:700;line-height:1.2}.presentation-author-org{color:var(--muted);font-size:1rem;line-height:1.2}.presentation-summary{font-size:1.05rem}.media-section-heading{color:var(--foreground);margin-top:1.5rem;margin-bottom:.3rem;font-size:1.3rem;font-weight:700;line-height:1.2}.media-list{flex-direction:column;gap:2rem;margin:0 0 2rem;display:flex}.photo-grid{grid-template-columns:repeat(2,1fr);gap:1rem;margin:0 0 2rem;display:grid}.video-frame{background:#000;width:100%;padding-top:56.25%;position:relative}.video-frame iframe,.video-frame video{border:0;width:100%;height:100%;position:absolute;inset:0}.video-skip-controls{opacity:0;pointer-events:none;width:fit-content;transition:opacity .15s;display:flex;position:absolute;bottom:1rem}.video-skip-controls-left{left:45%;transform:translate(-50%)}.video-skip-controls-right{left:55%;transform:translate(-50%)}.video-frame:hover .video-skip-controls,.video-frame:focus-within .video-skip-controls{opacity:1;pointer-events:auto}.video-skip-button{color:#222;cursor:pointer;background:#fff;border:none;border-radius:999px;padding:.5rem .85rem;font-size:.85rem}.video-skip-button:hover{background:#ddd}.photo-frame{display:block}.photo-frame img{border-radius:4px;width:100%;height:auto;display:block}.media-title{margin-top:.75rem;margin-bottom:.15rem;font-weight:600}.media-caption{color:var(--muted);font-size:.9rem}.prev-next-nav{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-top:2.5rem;padding-top:1.5rem;display:flex}.nav-button{font-weight:600}.nav-button-schedule{font-weight:400}.donation-form{flex-direction:column;gap:1rem;max-width:480px;margin-top:1.5rem;display:flex}.form-field{flex-direction:column;gap:.35rem;display:flex}.form-field label{font-size:.9rem;font-weight:600}.form-field input,.form-field textarea{font:inherit;border:1px solid var(--border);border-radius:4px;padding:.55rem .7rem}.donation-form button{font:inherit;color:var(--accent-contrast);background:var(--accent);cursor:pointer;border:none;border-radius:4px;align-self:flex-start;padding:.65rem 1.25rem;font-weight:600}.donation-form button:disabled{opacity:.6;cursor:default}.form-message{font-weight:600}.form-success{color:#0a7d2e}.form-error{color:#c0322d}