:root {
  --navy: #162947;
  --burgundy: #8e1f3f;
  --gold: #b68a2b;
  --cream: #f7f2e8;
  --blue: #d9ecf4;
  --ink: #2e3238;
  --muted: #66717d;
  --white: #ffffff;
  --line: rgba(22, 41, 71, 0.16);
  --shadow: 0 18px 50px rgba(22, 41, 71, 0.12);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(217, 236, 244, 0.58), rgba(247, 242, 232, 0) 320px),
    repeating-linear-gradient(90deg, rgba(22, 41, 71, 0.018) 0 1px, transparent 1px 56px),
    var(--cream);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid rgba(22, 41, 71, 0.1);
  background: rgba(247, 242, 232, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--navy);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
  letter-spacing: 0;
  border: 3px solid var(--gold);
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.conference-lockup {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--navy);
}

.conference-lockup b {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 36px;
  line-height: 0.82;
}

.conference-lockup span {
  color: var(--navy);
  font-size: 12px;
  font-weight: 800;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.header-meta a {
  padding: 8px 12px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
}

.header-meta a:hover,
.header-meta a:focus-visible {
  background: rgba(182, 138, 43, 0.16);
}

main {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding: clamp(44px, 7vw, 92px) 0 30px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--burgundy);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
legend {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 0.98;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
}

.hero-text {
  max-width: 720px;
  margin: 22px 0 26px;
  color: #46505a;
  font-size: clamp(17px, 2vw, 21px);
}

.event-facts {
  display: grid;
  gap: 12px;
  margin: 0;
}

.event-facts div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.event-facts dt {
  color: var(--burgundy);
  font-weight: 800;
}

.event-facts dd {
  margin: 0;
  color: var(--navy);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.primary-action,
.secondary-action,
.submit-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 13px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  text-decoration: none;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.primary-action,
.submit-button {
  background: var(--burgundy);
  color: var(--white);
  box-shadow: 0 12px 26px rgba(142, 31, 63, 0.22);
}

.secondary-action {
  background: rgba(255, 255, 255, 0.74);
  color: var(--navy);
  border-color: rgba(22, 41, 71, 0.18);
}

.primary-action:hover,
.submit-button:hover {
  background: #741832;
}

.document-panel {
  overflow: hidden;
  border: 1px solid rgba(22, 41, 71, 0.16);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.document-panel img {
  width: 100%;
  aspect-ratio: 0.72;
  object-fit: cover;
  object-position: 0% 0%;
}

.document-caption {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  background: linear-gradient(90deg, rgba(217, 236, 244, 0.82), #fff);
  color: var(--navy);
}

.document-caption span {
  color: var(--muted);
  font-size: 14px;
}

.notice-band {
  margin: 0 0 26px;
  padding: 18px 20px;
  border-left: 5px solid var(--gold);
  border-radius: 6px;
  background: rgba(217, 236, 244, 0.7);
  color: var(--navy);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 12px 0 70px;
}

.summary-column {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 16px;
}

.summary-block,
.registration-form {
  border: 1px solid rgba(22, 41, 71, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 14px 38px rgba(22, 41, 71, 0.08);
}

.summary-block {
  padding: 22px;
}

.fee-list {
  display: grid;
  gap: 10px;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.fee-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.fee-list strong {
  color: var(--burgundy);
  text-align: right;
}

.account-box {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.account-box p {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 12px;
  border-radius: 6px;
  background: rgba(247, 242, 232, 0.8);
}

.account-box span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.account-box strong {
  color: var(--navy);
}

.fine-print,
.privacy-note,
.verification-note,
.calculated-fee {
  color: var(--muted);
  font-size: 14px;
}

.support-block a {
  color: var(--burgundy);
  font-weight: 800;
  word-break: break-word;
}

.registration-form {
  padding: clamp(20px, 4vw, 34px);
}

.tally-registration-card {
  display: grid;
  gap: 20px;
}

.form-heading {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.tally-heading {
  padding-bottom: 18px;
}

.form-heading p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.tally-note {
  padding: 16px;
  border-left: 4px solid var(--gold);
  border-radius: 6px;
  background: rgba(217, 236, 244, 0.48);
  color: var(--navy);
}

.tally-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tally-frame-wrap {
  overflow: hidden;
  border: 1px solid rgba(22, 41, 71, 0.12);
  border-radius: 8px;
  background: var(--white);
}

.tally-frame {
  display: block;
  width: 100%;
  min-height: 2800px;
  border: 0;
  background: var(--white);
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 28px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
}

fieldset:last-of-type {
  border-bottom: 0;
}

legend {
  margin-bottom: 18px;
  padding: 0;
  font-size: 24px;
  font-weight: 700;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--navy);
  font-weight: 800;
}

label span {
  font-size: 14px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(22, 41, 71, 0.22);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  padding: 11px 12px;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(182, 138, 43, 0.24);
  border-color: var(--gold);
}

.span-2 {
  grid-column: 1 / -1;
}

.category-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.category-option {
  position: relative;
  padding: 16px;
  border: 1px solid rgba(22, 41, 71, 0.18);
  border-radius: 8px;
  background: var(--white);
  cursor: pointer;
}

.category-option input {
  position: absolute;
  inset: 14px 14px auto auto;
  width: 18px;
  height: 18px;
  min-height: 18px;
}

.category-option strong,
.category-option small {
  display: block;
  padding-right: 26px;
}

.category-option small {
  margin-top: 6px;
  color: var(--muted);
  font-weight: 500;
}

.category-option:has(input:checked) {
  border-color: var(--burgundy);
  background: rgba(142, 31, 63, 0.06);
}

.upload-field {
  padding: 16px;
  border-radius: 8px;
  background: rgba(217, 236, 244, 0.42);
}

.upload-field small {
  color: var(--muted);
  font-weight: 600;
}

.consent-list {
  display: grid;
  gap: 12px;
}

.consent-list label {
  grid-template-columns: 20px 1fr;
  align-items: start;
  font-weight: 700;
}

.consent-list input {
  width: 18px;
  height: 18px;
  min-height: 18px;
  margin-top: 2px;
}

.submit-button {
  width: 100%;
  margin-top: 8px;
  font-size: 16px;
}

.form-status {
  min-height: 24px;
  color: var(--burgundy);
  font-weight: 800;
  text-align: center;
}

.confirmation-screen {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(22, 41, 71, 0.62);
}

.confirmation-screen.is-visible {
  display: grid;
}

.confirmation-card {
  width: min(640px, 100%);
  padding: clamp(24px, 5vw, 42px);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.registration-id {
  display: inline-flex;
  margin: 12px 0 24px;
  padding: 10px 14px;
  border-radius: 6px;
  background: rgba(217, 236, 244, 0.75);
  color: var(--navy);
  font-weight: 900;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 24px clamp(18px, 4vw, 52px);
  border-top: 1px solid rgba(22, 41, 71, 0.12);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.54);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .hero-section,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .summary-column {
    position: static;
  }

  .document-panel {
    order: -1;
  }

  .document-panel img {
    aspect-ratio: 16 / 10;
  }

  .category-options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: 40px;
  }

  .event-facts div,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .tally-actions .primary-action,
  .tally-actions .secondary-action {
    justify-content: center;
  }

  .tally-frame {
    min-height: 3300px;
  }

  .span-2 {
    grid-column: auto;
  }

  .hero-actions,
  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .hero-actions a,
  .confirmation-card button {
    width: 100%;
  }
}