.registration-page { background: var(--paper); color: var(--ink); min-height: 100vh; }
.registration-header { align-items: stretch; background: var(--ink); color: #fff; display: grid; grid-template-columns: 15rem 1fr auto; height: 5.8rem; padding-left: 2rem; }
.registration-header .brand { align-self: center; }
.registration-header-meta { align-items: center; border-left: 1px solid var(--line-light); display: flex; flex-direction: column; font-size: .6rem; gap: .4rem; justify-content: center; letter-spacing: .14em; text-align: center; }
.registration-header-meta span { color: var(--lime); font-weight: 900; }
.registration-tools { display: grid; grid-template-columns: 4.5rem 9rem; }
.payment-page .registration-tools { grid-template-columns: 4.5rem 9rem; }
.registration-language { appearance: none; background: #020b0e; border: 0; border-left: 1px solid var(--line-light); color: #fff; cursor: pointer; font-size: .65rem; font-weight: 900; padding: 0 1rem; }
.registration-tools a { align-items: center; background: var(--aqua); color: var(--ink); display: flex; font-size: .63rem; font-weight: 900; justify-content: center; letter-spacing: .1em; }
.registration-shell { display: grid; grid-template-columns: 16rem minmax(0, 1fr); min-height: calc(100vh - 5.8rem); }
.registration-rail { background: var(--ink-2); color: #fff; display: flex; flex-direction: column; padding: 2.5rem 2rem; }
.registration-rail > a { color: #a9b7b8; font-size: .58rem; font-weight: 900; letter-spacing: .12em; }
.registration-rail > p { color: var(--aqua); font-size: .58rem; font-weight: 900; letter-spacing: .18em; margin: 4rem 0 1.8rem; }
.registration-rail ol { list-style: none; margin: 0; padding: 0; }
.registration-rail li { align-items: center; border-top: 1px solid var(--line-light); color: #718184; display: flex; font-size: .62rem; gap: 1rem; letter-spacing: .12em; padding: 1.2rem 0; }
.registration-rail li:last-child { border-bottom: 1px solid var(--line-light); }
.registration-rail li span { font-family: var(--display); font-size: 1rem; }
.registration-rail li.active, .registration-rail li.complete { color: #fff; }
.registration-rail li.active span { color: var(--lime); }
.registration-rail li.complete span { color: var(--aqua); }
.rail-note { margin-top: auto; }
.rail-note > span { color: var(--lime); font: 900 2rem var(--display); }
.rail-note p { color: #9babad; font-size: .62rem; font-weight: 800; letter-spacing: .12em; line-height: 1.8; margin: .8rem 0 0; }
.registration-content { min-width: 0; padding: clamp(3rem, 6vw, 6rem); }
.registration-step { margin: 0 auto; max-width: 82rem; }
.registration-step[hidden] { display: none; }
.step-heading { display: grid; gap: 2rem; grid-template-columns: minmax(22rem, 1.5fr) minmax(16rem, .7fr); margin-bottom: 4rem; }
.step-heading > span { color: #087d82; font-size: .62rem; font-weight: 900; grid-column: 1 / -1; letter-spacing: .18em; }
.step-heading h1 { font-size: clamp(3.8rem, 7vw, 7.5rem); line-height: .76; margin: 0; }
.step-heading > p { align-self: end; color: var(--muted); font-size: .95rem; line-height: 1.7; }
.step-heading.compact { grid-template-columns: 1fr; }
.category-catalog { display: grid; gap: .3rem; grid-template-columns: repeat(5, minmax(9rem, 1fr)); }
.catalog-card { background: #fff; border: 0; color: var(--ink); cursor: pointer; display: flex; flex-direction: column; min-height: 26rem; padding: 1.4rem; position: relative; text-align: left; transition: transform .2s ease, background .2s ease; }
.catalog-card:hover, .catalog-card:focus-visible { background: var(--lime); transform: translateY(-.5rem); }
.catalog-card:nth-child(3) { background: var(--aqua); }
.catalog-card > span { color: #087d82; font-size: .58rem; font-weight: 900; letter-spacing: .14em; }
.catalog-card h2 { font-size: clamp(1.8rem, 3vw, 3rem); line-height: .82; margin: 3rem 0 1.2rem; min-height: 4.8rem; }
.catalog-card p { color: #5b696d; font-size: .72rem; line-height: 1.55; }
.catalog-card footer { border-top: 1px solid var(--line-dark); margin-top: auto; padding-top: 1rem; }
.catalog-card footer small { display: block; font-size: .52rem; letter-spacing: .12em; margin-bottom: .35rem; }
.catalog-card footer strong { font: 900 1rem var(--display); }
.catalog-card footer b { float: right; font-size: 1.2rem; }
.briefing-layout { display: grid; gap: .3rem; grid-template-columns: minmax(16rem, .65fr) 1.35fr; }
.selected-category { background: var(--lime); display: flex; flex-direction: column; min-height: 34rem; padding: 2rem; }
.selected-category span { font-size: .6rem; font-weight: 900; letter-spacing: .15em; }
.selected-category h2 { font-size: clamp(3rem, 6vw, 6rem); line-height: .78; margin: 4rem 0 1.5rem; }
.selected-category p { line-height: 1.6; }
.selected-category strong { border-top: 1px solid var(--line-dark); font: 900 1.2rem var(--display); margin-top: auto; padding-top: 1rem; }
.briefing-copy { background: #fff; padding: clamp(2rem, 5vw, 4.5rem); }
.briefing-lead { font-size: 1.15rem; line-height: 1.7; }
.course-strip { display: grid; gap: 1px; grid-template-columns: repeat(3, 1fr); margin: 2.5rem 0; }
.course-strip div { background: var(--ink); color: #fff; padding: 1rem; }
.course-strip small { color: var(--aqua); display: block; font-size: .5rem; letter-spacing: .12em; }
.course-strip strong { display: block; font: 900 1.35rem var(--display); margin-top: .45rem; }
.briefing-copy h2 { font-size: 1.35rem; letter-spacing: -.02em; margin-top: 3rem; }
.briefing-copy ul { display: grid; font-size: .82rem; gap: .8rem; line-height: 1.5; list-style: none; padding: 0; }
.briefing-copy li::before { color: #008d91; content: "✓"; font-weight: 900; margin-right: .7rem; }
.briefing-copy aside { border-left: .25rem solid var(--lime); margin-top: 2.5rem; padding-left: 1rem; }
.briefing-copy aside b { font-size: .7rem; letter-spacing: .12em; }
.briefing-copy aside p { color: var(--muted); font-size: .78rem; line-height: 1.55; margin: .5rem 0 0; }
.step-actions { align-items: center; display: flex; justify-content: space-between; margin-top: 2rem; }
.back-button { background: none; border: 0; cursor: pointer; font-size: .63rem; font-weight: 900; letter-spacing: .12em; padding: 1rem 0; }
.flow-button { align-items: center; background: var(--lime); border: 0; color: var(--ink); cursor: pointer; display: inline-flex; font-size: .68rem; font-weight: 900; justify-content: space-between; letter-spacing: .1em; min-height: 3.8rem; padding: 0 1.2rem; text-transform: uppercase; width: min(100%, 19rem); }
.flow-button span { font-size: 1.2rem; }
.account-gate { background: var(--ink); color: #fff; padding: clamp(2.5rem, 6vw, 6rem); }
.account-gate > span { color: var(--aqua); font-size: .6rem; font-weight: 900; letter-spacing: .16em; }
.account-gate h2 { font-size: clamp(2.6rem, 5.5vw, 5.5rem); line-height: .86; margin: 2rem 0; }
.account-gate > p { color: #b6c2c3; line-height: 1.7; max-width: 38rem; }
.account-gate > div { align-items: center; display: flex; gap: 2rem; margin-top: 2.5rem; }
.login-link { border-bottom: 1px solid currentColor; font-size: .68rem; font-weight: 900; padding: .7rem 0; }
.participant-form { display: grid; gap: 2rem; }
.signed-in-note { background: var(--aqua); font-size: .72rem; padding: 1rem 1.2rem; }
.participant-form fieldset { background: #fff; border: 0; margin: 0; padding: 2rem; }
.participant-form legend { background: var(--ink); color: #fff; font-size: .62rem; font-weight: 900; letter-spacing: .14em; padding: .7rem 1rem; }
.form-grid { display: grid; gap: 1.4rem; grid-template-columns: repeat(2, 1fr); }
.participant-form label:not(.option-card, .consent) { display: grid; font-size: .62rem; font-weight: 900; gap: .55rem; letter-spacing: .08em; text-transform: uppercase; }
.participant-form input:not([type="checkbox"]), .participant-form select { background: var(--paper); border: 1px solid #bac3c1; border-radius: 0; color: var(--ink); font: 500 .9rem var(--body); min-height: 3.4rem; padding: .7rem .9rem; width: 100%; }
.participant-form input:focus, .participant-form select:focus { border-color: #008d91; outline: 2px solid rgba(0,141,145,.18); }
.field-help { color: var(--muted); font-size: .7rem; margin: 1.5rem 0 0; }
.options-fieldset { display: grid; gap: 1.2rem; }
.option-card { align-items: flex-start; background: var(--paper); cursor: pointer; display: flex; gap: 1rem; padding: 1.3rem; }
.option-card input, .consent input { accent-color: var(--ink); margin-top: .15rem; }
.option-card span { display: grid; gap: .4rem; }
.option-card b { font-size: .72rem; letter-spacing: .08em; }
.option-card small { color: var(--muted); line-height: 1.55; }
.consent { align-items: flex-start; display: flex; font-size: .7rem; gap: .8rem; line-height: 1.5; }
.form-message { border-left: .2rem solid transparent; font-size: .72rem; line-height: 1.5; margin: 0; min-height: 1.2rem; padding-left: .8rem; }
.form-message.error { border-color: var(--coral); color: #a51825; }
[hidden] { display: none !important; }

@media (max-width: 1050px) {
  .category-catalog { grid-template-columns: repeat(2, 1fr); }
  .catalog-card:last-child { grid-column: span 2; }
}
@media (max-width: 780px) {
  .registration-header { grid-template-columns: 1fr auto; padding-left: 1rem; }
  .registration-header-meta { display: none; }
  .registration-tools { grid-template-columns: 3.8rem 7rem; }
  .registration-shell { grid-template-columns: 1fr; }
  .registration-rail { padding: 1rem; }
  .registration-rail > a, .registration-rail > p, .rail-note { display: none; }
  .registration-rail ol { display: grid; grid-template-columns: repeat(4, 1fr); }
  .registration-rail li { border-bottom: 1px solid var(--line-light); display: grid; gap: .25rem; justify-items: center; padding: .8rem .25rem; }
  .registration-rail li b { font-size: .5rem; }
  .registration-content { padding: 3rem 1rem 5rem; }
  .step-heading { grid-template-columns: 1fr; }
  .step-heading > p { max-width: 32rem; }
  .briefing-layout { grid-template-columns: 1fr; }
  .selected-category { min-height: 23rem; }
}
@media (max-width: 520px) {
  .category-catalog { grid-template-columns: 1fr; }
  .catalog-card, .catalog-card:last-child { grid-column: auto; min-height: 20rem; }
  .form-grid { grid-template-columns: 1fr; }
  .course-strip { grid-template-columns: 1fr; }
  .step-actions, .account-gate > div { align-items: stretch; flex-direction: column-reverse; }
}
html[dir="rtl"] .catalog-card { text-align: right; }
html[dir="rtl"] .briefing-copy li::before { margin-left: .7rem; margin-right: 0; }
html[dir="rtl"] .briefing-copy aside { border-left: 0; border-right: .25rem solid var(--lime); padding-left: 0; padding-right: 1rem; }

.payment-shell { display: grid; gap: clamp(3rem, 8vw, 9rem); grid-template-columns: minmax(20rem, .8fr) minmax(24rem, 1.2fr); margin: 0 auto; max-width: 92rem; min-height: calc(100vh - 5.8rem); padding: clamp(3rem, 7vw, 7rem) var(--pad); }
.payment-heading > a { font-size: .6rem; font-weight: 900; letter-spacing: .12em; }
.payment-heading > span { color: #087d82; display: block; font-size: .62rem; font-weight: 900; letter-spacing: .18em; margin: 4rem 0 2rem; }
.payment-heading h1 { font-size: clamp(4rem, 8vw, 8rem); line-height: .76; margin-bottom: 2.5rem; }
.payment-heading > p { color: var(--muted); line-height: 1.7; max-width: 30rem; }
.order-panel { align-self: start; background: #fff; box-shadow: 0 2rem 5rem rgba(7,29,34,.1); }
.order-panel > header { background: var(--ink); color: #fff; display: flex; font-size: .62rem; justify-content: space-between; letter-spacing: .12em; padding: 1.2rem 1.5rem; }
.order-panel > header span { color: var(--aqua); }
.order-panel > div { padding: clamp(1.5rem, 4vw, 3rem); }
.order-details { margin: 0; }
.order-details > div { align-items: center; border-bottom: 1px solid var(--line-dark); display: flex; gap: 2rem; justify-content: space-between; padding: 1rem 0; }
.order-details dt { color: var(--muted); font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; }
.order-details dd { font-size: .78rem; font-weight: 800; margin: 0; text-align: right; }
.price-summary { align-items: end; background: var(--lime); display: flex; justify-content: space-between; margin-top: 2rem; padding: 1.5rem; }
.price-summary span { font-size: .6rem; font-weight: 900; letter-spacing: .12em; }
.price-summary strong { font: 900 1.5rem var(--display); }
.provider-placeholder { align-items: flex-start; background: var(--paper); display: flex; gap: 1rem; margin-top: 1rem; padding: 1.3rem; }
.provider-placeholder i { background: var(--aqua); border-radius: 50%; display: grid; flex: 0 0 1.7rem; font-style: normal; height: 1.7rem; place-items: center; }
.provider-placeholder b { font-size: .62rem; letter-spacing: .1em; }
.provider-placeholder p { color: var(--muted); font-size: .7rem; line-height: 1.55; margin: .5rem 0 0; }
.payment-button { align-items: center; background: var(--ink); border: 0; color: #fff; display: flex; font-size: .7rem; font-weight: 900; justify-content: space-between; letter-spacing: .12em; margin-top: 2rem; min-height: 4.3rem; padding: 0 1.3rem; width: 100%; }
.payment-button:disabled { cursor: not-allowed; opacity: .45; }
.payment-status { color: var(--muted); font-size: .65rem; line-height: 1.5; margin: .8rem 0 0; text-align: center; }
.empty-order h2 { font-size: 2rem; }
.empty-order p { color: var(--muted); line-height: 1.6; }
@media (max-width: 780px) { .payment-shell { grid-template-columns: 1fr; } .payment-heading > span { margin-top: 2rem; } }