:root { color-scheme: light; font-family: "Segoe UI", system-ui, -apple-system, sans-serif; color: #292929; background: #f5f5f5; font-synthesis: none; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; }
.page { max-width: 1660px; padding: 16px 32px 32px; margin: auto; }
.event-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 26px; }
h1 { font-size: clamp(1.3rem, 1.8vw, 1.75rem); line-height: 1.35; margin: 0; font-weight: 600; }
h2 { font-size: 1.25rem; margin: 0 0 18px; font-weight: 600; }
.event-grid { display: grid; grid-template-columns: minmax(0, 2.3fr) minmax(310px, 1fr); gap: 24px; align-items: start; }
.event-content { min-width: 0; display: grid; gap: 20px; }
.event-banner { display: block; width: 100%; height: auto; border-radius: 10px; }
.card { background: #fff; border: 1px solid #e1e1e1; border-radius: 6px; padding: 26px; box-shadow: 0 2px 4px #0000001c; }
.event-intro { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 14px; }
.organizer-logo { flex: 0 0 72px; height: 72px; background: linear-gradient(135deg, #16114a, #343b99); border-radius: 10px; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.organizer-logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.event-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; color: #484848; font-size: .95rem; font-weight: 600; margin: 0 0 8px; }
.status-badge { border: 1px solid #b9d7ff; border-radius: 20px; background: #f1f7ff; color: #095cc5; padding: 1px 8px; font-size: .875rem; white-space: nowrap; }
.description-card h2 { font-size: clamp(1.4rem, 2vw, 2rem); line-height: 1.3; margin: 0; letter-spacing: -.02em; }
.description-card { font-size: 1.125rem; line-height: 1.6; }
.description-card p, .description-card ul { margin: 0 0 28px; }
.description-card p:last-child { margin-bottom: 0; }
.description-card ul { padding-left: 19px; }
.description-card h3 { font-size: 1.875rem; line-height: 1.3; margin: 0 0 28px; }
.presenter-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.presenter { display: flex; align-items: center; gap: 16px; border: 1px solid #ebebeb; box-shadow: 0 2px 4px #00000015; border-radius: 6px; padding: 16px; }
.presenter strong { font-size: 1.05rem; font-weight: 600; }
.presenter p { margin: 6px 0 0; font-size: .9rem; }
.avatar { width: 64px; height: 64px; display: grid; place-items: center; flex-shrink: 0; border-radius: 50%; background: #e8e8e8; color: #626262; font-size: 1.25rem; font-weight: 600; }
img.avatar { object-fit: cover; }
.event-summary { position: sticky; top: 24px; padding: 20px; border-radius: 12px; }
.register-link { display: block !important; width: 100%; text-align: center; }
.event-facts { display: grid; gap: 22px; border-top: 1px solid #dedede; padding-top: 22px; margin-top: 20px; }
.event-fact { display: flex; align-items: center; gap: 12px; font-size: 1.1rem; line-height: 1.5; }
.event-fact svg { color: #2169ce; flex: 0 0 24px; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.timezone { display: block; font-size: .875rem; color: #616161; margin-top: 4px; }
a { color: #145fbe; text-underline-offset: 3px; }
button, .button { display: inline-flex; justify-content: center; align-items: center; gap: 10px; background: #2d73da; color: #fff; padding: 9px 20px; border: 1px solid #2d73da; border-radius: 4px; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; line-height: 1.4; }
button:hover, .button:hover { background: #1d60be; }
.secondary { background: transparent; color: #292929; border-color: #ccc; }
.secondary:hover { background: #eaeaea; }
:focus-visible { outline: 3px solid #155fbe; outline-offset: 4px; }
.registration-card { scroll-margin-top: 24px; }
.hint { color: #616161; font-size: .875rem; margin-bottom: 26px; }
.name-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.field { margin-bottom: 22px; min-width: 0; }
.field label { display: block; margin-bottom: 8px; font-size: .95rem; font-weight: 600; }
.field input { width: 100%; padding: 11px 12px; border: 1px solid #929292; border-radius: 4px; font: inherit; background: #fff; color: inherit; }
.validation { color: #a12121; font-size: .875rem; }
.validation > span { display: block; margin-top: 6px; }
.validation:empty, .validation-summary-valid { display: none; }
.validation-summary-errors { padding: 14px 18px; border: 1px solid #dba1a1; background: #fff6f6; border-radius: 4px; margin-bottom: 24px; }
.validation-summary-errors p { margin: 0 0 8px; font-weight: 600; }
.validation-summary-errors ul { padding-left: 20px; margin: 0; }
.input-validation-error { border-color: #a12121 !important; }
.terms { border-top: 1px solid #e1e1e1; padding-top: 22px; margin-top: 6px; }
.checkbox-row { display: flex; gap: 12px; align-items: flex-start; line-height: 1.6; font-size: .9rem; }
.checkbox-row input { flex-shrink: 0; width: 18px; height: 18px; margin: 3px 0; accent-color: #2d73da; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.spam-note { display: flex; align-items: flex-start; gap: 10px; margin: 24px 0 0; padding: 14px 16px; border: 1px solid #b9d7ff; border-radius: 4px; background: #f1f7ff; font-size: .9rem; line-height: 1.5; }
.spam-note svg { color: #095cc5; flex: 0 0 20px; width: 20px; height: 20px; margin-top: 2px; fill: none; stroke: currentColor; stroke-width: 1.8; }
footer { max-width: 900px; margin: 12px auto 32px; padding: 0 24px; text-align: center; font-size: .75rem; color: #616161; line-height: 1.6; }
.result { max-width: 720px; margin: 64px auto; padding: 36px; }
.result h1 { font-size: 2rem; }
.result p { line-height: 1.6; }
.result .button { margin-top: 16px; }
.result .spam-note { margin-bottom: 24px; }
.eyebrow { font-size: .8rem; color: #145fbe; font-weight: 700; letter-spacing: .12em; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
@media (max-width: 1000px) { .page { padding: 20px; } .event-grid { grid-template-columns: minmax(0, 1.8fr) minmax(280px, 1fr); gap: 18px; } .presenter-grid { grid-template-columns: 1fr; } .event-intro { gap: 12px; } .organizer-logo { flex-basis: 48px; height: 48px; } .description-card { font-size: 1rem; } }
@media (max-width: 760px) { .event-header { flex-direction: column; gap: 14px; margin-bottom: 20px; } .event-grid { display: flex; flex-direction: column; } .event-content { display: contents; } .event-banner { order: 0; } .event-summary { position: static; order: 1; width: 100%; } .description-card { order: 2; } .presenters-card { order: 3; } .registration-card { order: 4; } .card { width: 100%; padding: 22px; } .presenter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .presenter { gap: 10px; padding: 12px; } .avatar { width: 44px; height: 44px; font-size: 1rem; } }
@media (max-width: 480px) { .page { padding: 16px 12px 24px; } .card { padding: 20px 16px; } .name-row, .presenter-grid { grid-template-columns: 1fr; gap: 0; } .presenter-grid { gap: 12px; } .description-card h3 { font-size: 1.5rem; } .event-intro { flex-direction: column; } .organizer-logo { width: 48px; flex-basis: 48px; } .event-meta { font-size: .85rem; } .actions > * { width: 100%; } .result { margin: 24px auto; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }