:root {
  color-scheme: light;
  --betha-blue: #0761ff;
  --betha-blue-deep: #064bd0;
  --carbon: #1c1a23;
  --ice: #cdeeff;
  --violet: #abb8ff;
  --white-spectrum: #f6f7fb;
  --white: #fff;
  --muted: #777985;
  --line: #e6e8ef;
  --font: "DM Sans", "Segoe UI", sans-serif;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; color: var(--carbon); background: var(--white-spectrum); font-family: var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button, input { font: inherit; }
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 20; top: 10px; left: 10px; padding: 12px 16px; transform: translateY(-150%); border-radius: 8px; color: var(--white); background: var(--carbon); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 10; top: 0; height: 78px; color: var(--carbon); background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(28,26,35,.07); backdrop-filter: blur(16px); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 112px; height: auto; }
.header-link { display: inline-flex; align-items: center; gap: 10px; color: #494a54; font-size: .86rem; font-weight: 600; text-decoration: none; }
.header-link span { color: var(--betha-blue); font-size: 1.05rem; transition: transform .2s ease; }
.header-link:hover span { transform: translate(2px,-2px); }

.hero { position: relative; overflow: hidden; min-height: 640px; padding: 74px 0 55px; color: var(--white); background: var(--betha-blue); }
.hero::before { position: absolute; inset: 0; content: ""; background: radial-gradient(ellipse at 82% 30%, rgba(171,184,255,.26), transparent 34%), linear-gradient(130deg, transparent 55%, rgba(5,59,175,.2)); pointer-events: none; }
.hero-grid { position: absolute; inset: 0 0 0 48%; opacity: .22; background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(90deg, transparent, #000 25%, #000); }
.hero-layout { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 40px; }
.hero-copy { max-width: 570px; padding: 24px 0 34px; }
.eyebrow { margin: 0 0 18px; font-size: .72rem; font-weight: 800; letter-spacing: .14em; line-height: 1.4; text-transform: uppercase; }
.eyebrow-light { display: flex; align-items: center; gap: 9px; color: rgba(255,255,255,.79); }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ice); box-shadow: 0 0 0 5px rgba(205,238,255,.15); }
.eyebrow-blue { color: var(--betha-blue); }
h1, h2, h3, p { overflow-wrap: break-word; }
.hero h1 { max-width: 660px; margin: 0; font-size: clamp(3rem, 5vw, 4.9rem); font-weight: 600; letter-spacing: -.065em; line-height: .99; }
.hero h1 span { color: var(--ice); }
.hero-lede { max-width: 520px; margin: 25px 0 29px; color: rgba(255,255,255,.83); font-size: 1.08rem; line-height: 1.68; }
.button { min-height: 56px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; padding: 0 22px; border: 0; border-radius: 9px; cursor: pointer; font-size: .88rem; font-weight: 700; text-decoration: none; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, a:focus-visible, input:focus-visible { outline: 3px solid var(--violet); outline-offset: 4px; }
.button-light { color: var(--betha-blue); background: var(--white); box-shadow: 0 10px 26px rgba(3,34,109,.14); }
.button-light:hover { background: var(--ice); }
.button-arrow { display: inline-grid; width: 27px; height: 27px; place-items: center; border-radius: 50%; color: inherit; background: rgba(7,97,255,.09); font-size: 1.05rem; }
.hero-note { margin: 14px 0 0; color: rgba(255,255,255,.64); font-size: .75rem; }
.hero-art { position: relative; min-height: 540px; display: grid; place-items: center; isolation: isolate; }
.hero-photo-frame { position: relative; z-index: 1; width: min(100%, 480px); height: 520px; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.38); border-radius: 16px; background: rgba(28,26,35,.24); box-shadow: 0 24px 52px rgba(0,25,91,.25); }
.hero-photo-frame::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(28,26,35,.02) 48%, rgba(28,26,35,.28)); pointer-events: none; }
.hero-photo { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 40%; }
.hero-footer { position: relative; display: flex; align-items: center; gap: 15px; margin-top: 32px; color: rgba(255,255,255,.63); font-size: .64rem; font-weight: 700; letter-spacing: .15em; }
.hero-footer-line { flex: 1; height: 1px; background: rgba(255,255,255,.28); }

.section-pad { padding: 112px 0; }
.intro-section { background: var(--white-spectrum); }
.intro-layout { display: grid; grid-template-columns: 205px 1fr; gap: 62px; }
.section-kicker { display: flex; align-items: center; gap: 11px; color: var(--muted); font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.section-number { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid #d9dce5; border-radius: 50%; color: var(--betha-blue); font-size: .68rem; letter-spacing: 0; }
.intro-content { max-width: 830px; }
.intro-content .eyebrow { margin-bottom: 17px; }
.intro-content h2, .event-heading h2, .registration-copy h2 { margin: 0; font-size: clamp(2.2rem, 4vw, 3.75rem); font-weight: 500; letter-spacing: -.06em; line-height: 1.05; }
.intro-content h2 span { color: var(--betha-blue); }
.intro-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; margin-top: 36px; }
.intro-bottom p { margin: 0; color: #666874; font-size: .91rem; line-height: 1.8; }
.topic-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.topic-tags span { padding: 8px 12px; border: 1px solid #dfe3ef; border-radius: 99px; color: #555866; font-size: .68rem; font-weight: 600; }

.event-section { position: relative; overflow: hidden; color: var(--white); background: var(--carbon); }
.event-section::before { position: absolute; inset: 0; z-index: 0; content: ""; background-image: radial-gradient(rgba(205,238,255,.2) 1px, transparent 1.5px); background-size: 22px 22px; opacity: .58; mask-image: radial-gradient(ellipse at 10% 15%, #000 0%, transparent 76%); pointer-events: none; }
.event-section::after { position: absolute; top: -280px; right: -170px; width: 680px; height: 680px; content: ""; border: 1px solid rgba(171,184,255,.15); border-radius: 50%; box-shadow: 0 0 0 55px rgba(171,184,255,.035), 0 0 0 110px rgba(171,184,255,.025); pointer-events: none; }
.event-section .container { position: relative; z-index: 1; }
.event-heading { display: grid; grid-template-columns: 1.05fr .75fr; align-items: end; gap: 90px; }
.section-kicker-dark { margin-bottom: 40px; color: rgba(255,255,255,.57); }
.section-kicker-dark .section-number { border-color: rgba(255,255,255,.28); color: var(--ice); }
.event-heading .eyebrow { margin-bottom: 16px; color: var(--ice); }
.event-heading h2 { max-width: 620px; }
.event-heading h2 span { color: var(--violet); }
.event-description { max-width: 455px; margin: 0 0 5px; color: rgba(255,255,255,.66); font-size: .91rem; line-height: 1.8; }
.event-details { display: grid; grid-template-columns: 1fr 1.15fr 1.1fr auto; gap: 0; margin-top: 66px; border-top: 1px solid rgba(255,255,255,.21); border-bottom: 1px solid rgba(255,255,255,.21); }
.detail-card { min-height: 191px; padding: 27px 23px 27px 0; border-right: 1px solid rgba(255,255,255,.18); }
.detail-card + .detail-card { padding-left: 24px; }
.detail-icon { display: grid; width: 35px; height: 35px; place-items: center; border: 1px solid rgba(205,238,255,.42); border-radius: 9px; color: var(--ice); }
.detail-icon svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.detail-label { margin: 20px 0 7px; color: rgba(255,255,255,.5); font-size: .65rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.detail-card h3 { margin: 0; font-size: .95rem; font-weight: 600; line-height: 1.5; }
.detail-card h3 span { color: rgba(255,255,255,.56); font-size: .73rem; font-weight: 400; }
.agenda-link { display: flex; align-items: center; justify-content: center; gap: 13px; padding: 20px; color: var(--ice); font-size: .76rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.agenda-link span { font-size: 1.1rem; transition: transform .2s ease; }
.agenda-link:hover span { transform: translate(3px,-3px); }
.event-footnote { display: flex; align-items: center; gap: 11px; margin-top: 23px; color: rgba(255,255,255,.56); font-size: .72rem; }
.footnote-star { color: var(--violet); font-size: 1rem; }

.registration-section { position: relative; overflow: hidden; background: var(--ice); }
.registration-section::before { position: absolute; right: -175px; bottom: -270px; width: 500px; height: 500px; content: ""; border: 1px solid rgba(7,97,255,.16); border-radius: 50%; box-shadow: 0 0 0 36px rgba(7,97,255,.035), 0 0 0 72px rgba(7,97,255,.025); }
.registration-layout { position: relative; display: grid; grid-template-columns: .78fr 1fr; align-items: start; gap: 92px; }
.registration-copy { padding-top: 4px; }
.registration-copy .section-kicker-dark { color: var(--carbon); }
.registration-copy .section-kicker-dark .section-number { border-color: rgba(28,26,35,.25); color: var(--carbon); }
.registration-copy .section-kicker { margin-bottom: 40px; }
.registration-copy .eyebrow { margin-bottom: 15px; }
.registration-copy h2 { font-size: clamp(2.6rem, 4.3vw, 4.1rem); }
.registration-copy h2 span { color: var(--betha-blue); }
.registration-lede { margin: 24px 0 10px; font-size: 1rem; font-weight: 700; }
.registration-help { max-width: 440px; margin: 0; color: #606575; font-size: .87rem; line-height: 1.75; }
.registration-aside { display: flex; align-items: center; gap: 14px; max-width: 390px; margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(7,97,255,.18); }
.aside-mark { flex: 0 0 37px; display: grid; width: 37px; height: 37px; place-items: center; border-radius: 10px; color: var(--white); background: var(--betha-blue); font-size: 1.2rem; font-style: italic; font-weight: 800; }
.registration-aside p { margin: 0; color: #596173; font-size: .72rem; line-height: 1.55; }
.form-card { padding: 34px; border: 1px solid rgba(28,26,35,.06); border-radius: 16px; background: var(--white); box-shadow: 0 22px 70px rgba(28,42,86,.1); }
.form-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 27px; }
.form-step { color: var(--betha-blue); font-size: .63rem; font-weight: 800; letter-spacing: .13em; }
.form-card-top h3 { margin: 7px 0 0; font-size: 1.5rem; font-weight: 600; letter-spacing: -.04em; }
.form-count { color: var(--betha-blue); font-size: .85rem; font-weight: 800; line-height: 1.2; text-align: right; }
.form-count small { color: #9a9da8; font-size: .55rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; margin-bottom: 7px; color: #41434d; font-size: .75rem; font-weight: 700; }
.form-field input, .form-field select { width: 100%; height: 48px; padding: 0 13px; border: 1px solid #e0e3eb; border-radius: 7px; color: var(--carbon); background: #fff; font-size: .8rem; transition: border .2s ease, box-shadow .2s ease; }
.form-field input::placeholder { color: #a2a5af; }
.form-field input:focus, .form-field select:focus { border-color: var(--betha-blue); outline: 0; box-shadow: 0 0 0 3px rgba(7,97,255,.1); }
.form-field input:disabled, .form-field select:disabled { color: #838b99; background: #f4f6f9; cursor: not-allowed; }
.form-field input[aria-invalid="true"], .form-field select[aria-invalid="true"] { border-color: #c33b50; }
.form-form-groups { display: grid; gap: 18px; }
.betha-form-group { display: grid; gap: 0; min-width: 0; margin: 0; padding: 17px 0 0; border: 0; border-top: 1px solid var(--line); }
.betha-form-group legend { width: 100%; padding: 0 0 3px; color: var(--carbon); font-size: .8rem; font-weight: 700; }
.betha-form-group .form-field { margin-bottom: 15px; }
.betha-form-group .form-field:last-child { margin-bottom: 0; }
.betha-location-group { grid-template-columns: minmax(120px, .35fr) minmax(0, 1fr); column-gap: 14px; }
.betha-location-group legend { grid-column: 1 / -1; }
.form-help { display: block; margin-top: 5px; color: #9295a0; font-size: .65rem; line-height: 1.45; }
.conditional-field[hidden] { display: none; }
.city-retry { margin-top: 8px; padding: 0; border: 0; color: var(--betha-blue); background: transparent; font: inherit; font-size: .7rem; font-weight: 700; text-align: left; cursor: pointer; }
.city-retry:hover { text-decoration: underline; }
.field-error { display: block; min-height: 0; margin-top: 4px; color: #b22a41; font-size: .67rem; }
.field-error:not(:empty) { min-height: 15px; }
.button-primary { color: var(--white); background: var(--betha-blue); }
.button-primary:hover { background: var(--betha-blue-deep); box-shadow: 0 9px 22px rgba(7,97,255,.2); }
.form-submit { width: 100%; justify-content: space-between; margin-top: 3px; padding-inline: 17px; font-size: .78rem; }
.form-submit .button-arrow { color: var(--betha-blue); background: var(--ice); }
.form-privacy { margin: 13px 0 0; color: #9295a0; font-size: .65rem; text-align: center; }
.form-error { margin: 0 0 19px; padding: 12px 14px; border: 1px solid #f0c4cb; border-radius: 7px; color: #9f2439; background: #fff4f5; font-size: .76rem; line-height: 1.5; }
.form-error[hidden] { display: none; }

.site-footer { color: rgba(255,255,255,.7); background: var(--carbon); }
.footer-inner { display: grid; grid-template-columns: 1fr 2fr 1fr; align-items: center; gap: 20px; min-height: 120px; padding-block: 25px; }
.brand-footer img { width: 100px; }
.footer-inner > p { margin: 0; color: rgba(255,255,255,.62); font-size: .73rem; }
.footer-top { justify-self: end; color: var(--ice); font-size: .72rem; font-weight: 600; text-decoration: none; }
.footer-top span { margin-left: 6px; }
.footer-bottom { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 13px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom small { color: rgba(255,255,255,.4); font-size: .62rem; }
.footer-bottom a { color: var(--ice); text-decoration: none; }
.footer-bottom a:hover { text-decoration: underline; }

.thank-you-page { position: relative; min-height: 100svh; display: grid; place-items: center; overflow: hidden; padding: 36px 18px; color: var(--white); background: var(--betha-blue); }
.thank-you-page::before { position: absolute; inset: 0; content: ""; background-image: radial-gradient(rgba(205,238,255,.22) 1px, transparent 1.5px); background-size: 22px 22px; mask-image: radial-gradient(ellipse at 15% 15%, #000, transparent 75%); pointer-events: none; }
.thank-you-card { position: relative; width: min(100%, 650px); padding: clamp(30px, 6vw, 62px); border: 1px solid rgba(255,255,255,.65); border-radius: 20px 70px 20px 20px; color: var(--carbon); background: var(--white-spectrum); box-shadow: 0 30px 90px rgba(0,35,115,.28); text-align: center; }
.thank-you-brand { display: inline-flex; margin-bottom: 36px; }
.thank-you-brand img { display: block; width: 116px; height: auto; }
.thank-you-check { display: grid; width: 58px; height: 58px; place-items: center; margin: 0 auto 23px; border-radius: 18px; color: var(--white); background: var(--betha-blue); font-size: 1.7rem; font-weight: 700; }
.thank-you-eyebrow { margin: 0 0 11px; color: var(--betha-blue); font-size: .68rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.thank-you-card h1 { margin: 0; font-size: clamp(2.35rem, 7vw, 4rem); font-weight: 600; letter-spacing: -.06em; line-height: 1.02; }
.thank-you-card h1 span { color: var(--betha-blue); }
.thank-you-copy { max-width: 460px; margin: 20px auto 0; color: #666874; font-size: .92rem; line-height: 1.75; }
.thank-you-event { margin: 28px 0; padding: 17px; border: 1px solid #e1e4ef; border-radius: 10px; color: #5f626e; background: var(--white); font-size: .77rem; line-height: 1.8; }
.thank-you-event strong { color: var(--carbon); }
.thank-you-actions { display: flex; flex-direction: column; align-items: center; gap: 15px; }
.thank-you-actions .button { min-width: 250px; }
.thank-you-agenda { color: var(--betha-blue); font-size: .77rem; font-weight: 700; text-decoration: none; }
.thank-you-agenda:hover { text-decoration: underline; }
.thank-you-footer { position: absolute; right: 22px; bottom: 18px; color: rgba(255,255,255,.65); font-size: .62rem; letter-spacing: .08em; }

@media (max-width: 900px) {
  .hero { padding-top: 53px; }
  .hero-layout { grid-template-columns: 1fr .82fr; gap: 10px; }
  .hero h1 { font-size: clamp(2.8rem, 6.1vw, 4.2rem); }
  .hero-art { min-height: 450px; }
  .hero-photo-frame { width: min(100%, 390px); height: 430px; }
  .intro-layout { grid-template-columns: 150px 1fr; gap: 35px; }
  .event-heading { gap: 45px; }
  .event-details { grid-template-columns: 1fr 1.2fr 1.2fr; }
  .agenda-link { grid-column: 1 / -1; justify-content: flex-start; min-height: 55px; padding: 12px 0; border-top: 1px solid rgba(255,255,255,.18); }
  .registration-layout { grid-template-columns: .78fr 1fr; gap: 44px; }
  .form-card { padding: 27px; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 72px; }
  .container { width: min(100% - 36px, var(--container)); }
  .site-header { height: 66px; }
  .brand img { width: 96px; }
  .header-link { font-size: .75rem; }
  .hero { min-height: auto; padding: 48px 0 27px; }
  .hero-grid { inset: 40% 0 0; background-size: 34px 34px; }
  .hero-layout { grid-template-columns: 1fr; gap: 3px; }
  .hero-copy { padding: 12px 0 0; }
  .eyebrow { font-size: .64rem; }
  .hero h1 { max-width: 520px; font-size: clamp(2.75rem, 13vw, 4.2rem); }
  .hero-lede { max-width: 490px; margin: 19px 0 23px; font-size: .94rem; }
  .button { min-height: 52px; font-size: .78rem; }
  .hero-note { font-size: .68rem; }
  .hero-art { min-height: 410px; margin-top: 3px; }
  .hero-photo-frame { width: min(100%, 390px); height: 390px; border-radius: 16px; }
  .hero-footer { gap: 9px; margin-top: 17px; font-size: .51rem; letter-spacing: .1em; }
  .section-pad { padding: 76px 0; }
  .intro-layout { grid-template-columns: 1fr; gap: 31px; }
  .intro-layout > .section-kicker { margin-bottom: -3px; }
  .intro-content h2, .event-heading h2 { font-size: clamp(2.2rem, 10vw, 3.4rem); }
  .intro-bottom { grid-template-columns: 1fr; gap: 17px; margin-top: 24px; }
  .intro-bottom p { font-size: .86rem; }
  .event-heading { grid-template-columns: 1fr; gap: 24px; }
  .section-kicker-dark { margin-bottom: 31px; }
  .event-description { font-size: .85rem; }
  .event-details { grid-template-columns: 1fr 1fr; margin-top: 37px; }
  .detail-card { min-height: 180px; padding: 21px 12px 20px 0; }
  .detail-card + .detail-card { padding-left: 13px; }
  .detail-card:nth-child(2) { border-right: 0; }
  .detail-card:nth-child(3) { border-top: 1px solid rgba(255,255,255,.18); }
  .detail-card h3 { font-size: .83rem; }
  .detail-card h3 span { font-size: .67rem; }
  .detail-label { margin-top: 16px; }
  .agenda-link { font-size: .72rem; }
  .event-footnote { align-items: flex-start; font-size: .66rem; line-height: 1.55; }
  .registration-layout { grid-template-columns: 1fr; gap: 34px; }
  .registration-copy .section-kicker { margin-bottom: 31px; }
  .registration-copy h2 { max-width: 520px; font-size: clamp(2.55rem, 11vw, 3.7rem); }
  .registration-lede { margin-top: 19px; }
  .registration-help { font-size: .82rem; }
  .registration-aside { margin-top: 25px; }
  .form-card { padding: 24px 19px; border-radius: 12px; }
  .form-card-top h3 { font-size: 1.3rem; }
  .form-field input, .form-field select { height: 47px; }
  .betha-location-group { grid-template-columns: 1fr; }
  .form-submit { font-size: .72rem; }
  .footer-inner { grid-template-columns: 1fr auto; gap: 14px; min-height: auto; padding-block: 25px; }
  .footer-inner > p { grid-column: 1 / -1; grid-row: 2; }
  .footer-top { grid-column: 2; grid-row: 1; }
  .footer-bottom { grid-row: 3; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}