:root {
    --sdc-ink: #13203a;
    --sdc-action: #4f46e5;
    --sdc-action-dark: #4338ca;
    --sdc-paper: #ffffff;
    --sdc-bg: #f6f7f9;
    --sdc-muted: #5b6472;
    --sdc-line: #e6e8ec;
    --sdc-ok: #1f9d57;
    --sdc-ok-bg: #e7f7ee;
    --sdc-wait: #b45309;
    --sdc-wait-bg: #fdf2e2;
    --sdc-sold: #9aa1ad;
    --sdc-accent: #f6b73c;
    --sdc-accent-dark: #d8961a;
    --sdc-accent-soft: #fef3da;
    --sdc-radius: 12px;
    --sdc-radius-sm: 8px;
    --sdc-shadow: 0 1px 2px rgba(19,32,58,.06), 0 8px 24px rgba(19,32,58,.06);
    --sdc-font-display: "Sora", system-ui, sans-serif;
    --sdc-font-body: "Inter", system-ui, -apple-system, sans-serif;
    --sdc-max: 1140px;
}

.sdc-main { font-family: var(--sdc-font-body); color: var(--sdc-ink); background: var(--sdc-bg); min-height: 60vh; }
.sdc-main *, .sdc-header *, .sdc-footer * { box-sizing: border-box; }
.sdc-wrap { max-width: var(--sdc-max); margin: 0 auto; padding: 76px 24px; }
.sdc-center { text-align: center; }
.sdc-section-title { font-family: var(--sdc-font-display); font-weight: 700; font-size: 30px; line-height: 1.18; letter-spacing: -.02em; margin: 0 0 32px; }
.sdc-empty { color: var(--sdc-muted); font-size: 16px; padding: 24px 0; }

/* Header */
.sdc-header { background: var(--sdc-paper); border-bottom: 1px solid var(--sdc-line); position: sticky; top: 0; z-index: 50; }
.sdc-header__inner { max-width: var(--sdc-max); margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.sdc-header__brand { font-family: var(--sdc-font-display); font-weight: 700; font-size: 20px; color: var(--sdc-ink); text-decoration: none; letter-spacing: -.02em; }
.sdc-header__brand img { max-height: 40px; width: auto; }
.sdc-header__nav { display: flex; align-items: center; gap: 20px; }
.sdc-header__nav a { color: var(--sdc-ink); text-decoration: none; font-weight: 500; font-size: 15px; }
.sdc-menu { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }
.sdc-cart-link { display: inline-flex; align-items: center; gap: 6px; }
.sdc-cart-count { background: var(--sdc-action); color: #fff; border-radius: 999px; min-width: 20px; height: 20px; padding: 0 6px; font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; }

/* Buttons */
.sdc-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: var(--sdc-font-body); font-weight: 600; font-size: 15px; line-height: 1; padding: 13px 22px; border-radius: var(--sdc-radius-sm); border: 1px solid transparent; cursor: pointer; text-decoration: none; transition: background .15s, border-color .15s, transform .05s; }
.sdc-btn:active { transform: translateY(1px); }
.sdc-btn--primary { background: var(--sdc-action); color: #fff; }
.sdc-btn--primary:hover { background: var(--sdc-action-dark); }
.sdc-btn--ghost { background: transparent; color: var(--sdc-ink); border-color: var(--sdc-line); }
.sdc-btn--ghost:hover { border-color: var(--sdc-ink); }
.sdc-btn--wait { background: var(--sdc-wait-bg); color: var(--sdc-wait); }
.sdc-btn--wait:hover { background: #f9e6cd; }
.sdc-btn--link { background: none; color: var(--sdc-action); padding: 8px; font-size: 14px; }
.sdc-btn--link:hover { text-decoration: underline; }
.sdc-btn--block { width: 100%; }
.sdc-btn--sm { padding: 9px 14px; font-size: 14px; }
.sdc-btn--lg { padding: 16px 30px; font-size: 17px; }
.sdc-link { color: var(--sdc-action); text-decoration: none; font-weight: 500; }
.sdc-link:hover { text-decoration: underline; }

/* Hero */
.sdc-hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #1b2d52 0%, #13203a 58%, #0e1830 100%); color: #fff; }
.sdc-hero__art { position: absolute; inset: 0; pointer-events: none; }
.sdc-hero__art svg { width: 100%; height: 100%; display: block; }
.sdc-orbit { transform-box: fill-box; transform-origin: center; animation: sdc-spin 90s linear infinite; }
.sdc-spark-node { transform-box: fill-box; transform-origin: center; animation: sdc-twinkle 4s ease-in-out infinite; }
.sdc-orbit g:nth-child(5) { animation-delay: 1.2s; }
.sdc-orbit g:nth-child(6) { animation-delay: 2.1s; }
.sdc-orbit g:nth-child(7) { animation-delay: .6s; }
.sdc-hero__inner { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; padding: 120px 24px 150px; text-align: center; }
.sdc-hero__eyebrow { display: inline-flex; align-items: center; gap: 8px; text-transform: uppercase; letter-spacing: .16em; font-size: 12.5px; font-weight: 600; color: #aebcdc; margin: 0 0 18px; padding: 7px 16px; border: 1px solid rgba(174,188,220,.28); border-radius: 999px; }
.sdc-hero__eyebrow .sdc-ico { color: var(--sdc-accent); }
.sdc-hero__title { font-family: var(--sdc-font-display); font-size: clamp(42px, 6.4vw, 72px); line-height: 1.0; letter-spacing: -.035em; margin: 0; }
.sdc-hero__underline { display: block; width: 220px; max-width: 62%; height: auto; margin: 10px auto 22px; }
.sdc-hero__sub { font-size: 18px; line-height: 1.6; color: #c7d2e6; max-width: 560px; margin: 0 auto 34px; }
@keyframes sdc-spin { to { transform: rotate(360deg); } }
@keyframes sdc-twinkle { 0%, 100% { opacity: .45; } 50% { opacity: 1; } }

/* Filters */
.sdc-filters { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; align-items: center; }
.sdc-filters select { font-family: var(--sdc-font-body); font-size: 15px; padding: 11px 14px; border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius-sm); background: var(--sdc-paper); color: var(--sdc-ink); min-width: 180px; }
.sdc-filters__clear { color: var(--sdc-muted); text-decoration: none; font-size: 14px; }

/* Session cards */
.sdc-session-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.sdc-session-card { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 22px; display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--sdc-shadow); }
.sdc-session-card.is-past { opacity: .6; }
.sdc-session-card__course { font-family: var(--sdc-font-display); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--sdc-action); text-decoration: none; display: block; margin-bottom: 10px; }
.sdc-session-card__date { font-family: var(--sdc-font-display); font-size: 19px; font-weight: 600; margin: 0 0 4px; letter-spacing: -.01em; }
.sdc-session-card__time, .sdc-session-card__loc { margin: 2px 0; color: var(--sdc-muted); font-size: 14px; }
.sdc-session-card__bottom { margin-top: 22px; }
.sdc-session-card__price { font-family: var(--sdc-font-display); font-size: 26px; font-weight: 700; margin-bottom: 14px; }
.sdc-session-card__note { font-size: 13px; color: var(--sdc-muted); text-align: center; margin: 8px 0 0; }
.sdc-seats-left { color: var(--sdc-wait); font-size: 13px; font-weight: 600; margin: 0 0 10px; }

/* Course cards */
.sdc-course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 28px; }
.sdc-course-card { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); overflow: hidden; text-decoration: none; color: var(--sdc-ink); box-shadow: var(--sdc-shadow); transition: transform .12s, box-shadow .12s; display: block; }
.sdc-course-card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(19,32,58,.12); }
.sdc-course-card__media img { width: 100%; height: 180px; object-fit: cover; display: block; }
.sdc-course-card__body { padding: 22px; }
.sdc-course-card__title { font-family: var(--sdc-font-display); font-size: 21px; margin: 0 0 8px; letter-spacing: -.01em; }
.sdc-course-card__excerpt { color: var(--sdc-muted); font-size: 15px; margin: 0 0 16px; line-height: 1.5; }
.sdc-course-card__meta { display: flex; justify-content: space-between; align-items: center; }
.sdc-course-card__price { font-family: var(--sdc-font-display); font-weight: 700; font-size: 18px; }
.sdc-course-card__next { color: var(--sdc-muted); font-size: 13px; }

/* Single course */
.sdc-course__header { background: var(--sdc-ink); color: #fff; }
.sdc-course__header-inner { padding: 64px 24px; }
.sdc-course__title { font-family: var(--sdc-font-display); font-size: clamp(32px, 5vw, 52px); margin: 0; letter-spacing: -.02em; }
.sdc-course__price { font-size: 20px; color: #c7d2e6; margin: 16px 0 0; }
.sdc-course__media img { width: 100%; border-radius: var(--sdc-radius); margin-bottom: 28px; }
.sdc-course__content { font-size: 17px; line-height: 1.7; color: #28303f; margin-bottom: 40px; }
.sdc-course__content p { margin: 0 0 18px; }

/* Tags / badges */
.sdc-tag { display: inline-block; padding: 5px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.sdc-tag--block { display: block; text-align: center; padding: 13px; }
.sdc-tag--sold { background: #eef0f3; color: var(--sdc-sold); }
.sdc-tag--wait { background: var(--sdc-wait-bg); color: var(--sdc-wait); }

/* Cart */
.sdc-cart__table { width: 100%; border-collapse: collapse; margin-bottom: 28px; background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); overflow: hidden; }
.sdc-cart__table td { padding: 18px; border-bottom: 1px solid var(--sdc-line); vertical-align: middle; }
.sdc-cart__table tr:last-child td { border-bottom: none; }
.sdc-cart__row--blocked { opacity: .55; }
.sdc-cart__meta { display: block; color: var(--sdc-muted); font-size: 14px; margin-top: 4px; }
.sdc-cart__price { font-family: var(--sdc-font-display); font-weight: 600; text-align: right; white-space: nowrap; }
.sdc-cart__remove { text-align: right; width: 40px; }
.sdc-cart__remove a { color: var(--sdc-sold); font-size: 22px; text-decoration: none; line-height: 1; }
.sdc-cart__remove a:hover { color: #c0392b; }
.sdc-cart__summary { max-width: 380px; margin-left: auto; background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 24px; }
.sdc-cart__note { font-size: 13px; color: var(--sdc-muted); margin: 12px 0; }
.sdc-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 15px; }
.sdc-row--total { font-family: var(--sdc-font-display); font-weight: 700; font-size: 19px; border-top: 1px solid var(--sdc-line); margin-top: 8px; padding-top: 14px; }
.sdc-cart__summary .sdc-btn { margin-top: 16px; }

/* Checkout */
.sdc-checkout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.sdc-checkout__summary { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 28px; position: sticky; top: 90px; }
.sdc-checkout__summary h3 { font-family: var(--sdc-font-display); margin: 0 0 18px; font-size: 20px; }
.sdc-line { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--sdc-line); }
.sdc-line strong { display: block; }
.sdc-line span { color: var(--sdc-muted); font-size: 14px; }
.sdc-line__price { font-family: var(--sdc-font-display); font-weight: 600; white-space: nowrap; }
.sdc-checkout__summary .sdc-row { margin-top: 6px; }
.sdc-field { display: block; margin-bottom: 18px; }
.sdc-field span { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.sdc-field input { width: 100%; padding: 13px 14px; border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius-sm); font-size: 15px; font-family: var(--sdc-font-body); background: var(--sdc-paper); }
.sdc-field input:focus { outline: 2px solid var(--sdc-action); outline-offset: 1px; border-color: var(--sdc-action); }
.sdc-field input:disabled { background: #f1f2f4; color: var(--sdc-muted); }
.sdc-policy { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius-sm); padding: 18px; margin-bottom: 18px; }
.sdc-policy h4 { margin: 0 0 8px; font-size: 15px; }
.sdc-policy__body { font-size: 14px; color: var(--sdc-muted); line-height: 1.6; max-height: 200px; overflow-y: auto; }
.sdc-policy__body p { margin: 0 0 10px; }
.sdc-agree { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 22px; font-size: 14px; }
.sdc-agree input { margin-top: 3px; }
.sdc-checkbox { display: flex; gap: 8px; align-items: center; font-size: 14px; margin-bottom: 16px; }
.sdc-checkout__secure { font-size: 13px; color: var(--sdc-muted); text-align: center; margin-top: 12px; }

/* Auth */
.sdc-auth { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; max-width: 760px; }
.sdc-auth__col { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 28px; }
.sdc-auth__col h3 { font-family: var(--sdc-font-display); margin: 0 0 20px; font-size: 20px; }
.sdc-checkout-auth__intro { font-size: 16px; color: var(--sdc-muted); margin-bottom: 24px; }

/* Dashboard */
.sdc-dashboard__head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--sdc-line); }
.sdc-dashboard__head h2 { font-family: var(--sdc-font-display); margin: 0 0 4px; font-size: 26px; }
.sdc-dashboard__head p { margin: 0; color: var(--sdc-muted); }
.sdc-enrollments { display: flex; flex-direction: column; gap: 16px; }
.sdc-enroll { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 20px 24px; display: grid; grid-template-columns: 1fr auto auto; gap: 20px; align-items: center; }
.sdc-enroll__main strong { display: block; font-size: 16px; }
.sdc-enroll__main span { display: block; color: var(--sdc-muted); font-size: 14px; }
.sdc-enroll__time { font-size: 13px !important; }
.sdc-enroll__side { text-align: right; }
.sdc-enroll__amount { display: block; font-family: var(--sdc-font-display); font-weight: 600; margin-top: 6px; }
.sdc-enroll__actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.sdc-enroll__pending { font-size: 13px; color: var(--sdc-wait); }
.sdc-badge { display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.sdc-badge--paid { background: var(--sdc-ok-bg); color: var(--sdc-ok); }
.sdc-badge--pending { background: var(--sdc-wait-bg); color: var(--sdc-wait); }
.sdc-badge--waitlisted { background: #eef1fb; color: var(--sdc-action); }
.sdc-badge--refunded, .sdc-badge--cancelled { background: #eef0f3; color: var(--sdc-sold); }

/* Notices */
.sdc-notice { padding: 14px 18px; border-radius: var(--sdc-radius-sm); margin-bottom: 24px; font-size: 15px; }
.sdc-notice--error { background: #fdeceb; color: #b3261e; border: 1px solid #f5c6c2; }
.sdc-notice--ok { background: var(--sdc-ok-bg); color: var(--sdc-ok); border: 1px solid #bfe6cf; }

/* Confirmation */
.sdc-confirm { text-align: center; max-width: 560px; }
.sdc-confirm__icon { width: 72px; height: 72px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 34px; margin-bottom: 20px; }
.sdc-confirm__icon--ok { background: var(--sdc-ok-bg); color: var(--sdc-ok); }
.sdc-confirm__icon--wait { background: var(--sdc-wait-bg); color: var(--sdc-wait); }
.sdc-confirm__icon--cancel { background: #fdeceb; color: #b3261e; }
.sdc-confirm h2 { font-family: var(--sdc-font-display); font-size: 28px; margin: 0 0 12px; }
.sdc-confirm p { color: var(--sdc-muted); font-size: 16px; margin: 0 0 8px; }
.sdc-confirm__ref { margin: 16px 0 24px !important; }
.sdc-confirm .sdc-btn { margin-top: 16px; }

/* Footer */
.sdc-footer { background: var(--sdc-ink); color: #b9c3d6; padding: 40px 24px; }
.sdc-footer__inner { max-width: var(--sdc-max); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.sdc-footer__menu { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }
.sdc-footer__menu a { color: #b9c3d6; text-decoration: none; font-size: 14px; }
.sdc-footer__copy { margin: 0; font-size: 14px; }

@media (max-width: 860px) {
    .sdc-checkout, .sdc-auth { grid-template-columns: 1fr; }
    .sdc-checkout__summary { position: static; order: -1; }
    .sdc-enroll { grid-template-columns: 1fr; gap: 14px; }
    .sdc-enroll__side, .sdc-enroll__actions { text-align: left; justify-content: flex-start; }
}

/* Icons */
.sdc-ico { display: inline-block; vertical-align: middle; flex-shrink: 0; }
.sdc-btn .sdc-ico { margin: 0; }

/* Brand + cart */
.sdc-header__brand { display: inline-flex; align-items: center; gap: 9px; }
.sdc-header__spark { color: var(--sdc-accent); }
.sdc-cart-link { color: var(--sdc-ink); }

/* Section eyebrow */
.sdc-eyebrow { display: inline-flex; align-items: center; gap: 7px; text-transform: uppercase; letter-spacing: .14em; font-size: 12.5px; font-weight: 600; color: var(--sdc-accent-dark); margin: 0 0 10px; }
.sdc-eyebrow .sdc-ico { color: var(--sdc-accent); }

/* How it works */
.sdc-steps-wrap { padding-top: 0; margin-top: -76px; position: relative; z-index: 3; }
.sdc-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sdc-step { position: relative; background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 32px 28px 28px; box-shadow: var(--sdc-shadow); }
.sdc-step__num { position: absolute; top: 18px; right: 22px; font-family: var(--sdc-font-display); font-size: 26px; font-weight: 700; color: var(--sdc-line); letter-spacing: -.02em; }
.sdc-step__ico { display: inline-flex; align-items: center; justify-content: center; width: 50px; height: 50px; border-radius: 14px; background: var(--sdc-accent-soft); color: var(--sdc-accent-dark); margin-bottom: 16px; }
.sdc-step h3 { font-family: var(--sdc-font-display); font-size: 19px; margin: 0 0 6px; letter-spacing: -.01em; }
.sdc-step p { color: var(--sdc-muted); font-size: 14.5px; line-height: 1.55; margin: 0; }

/* Session card meta + spark */
.sdc-session-card__course { display: inline-flex; align-items: center; gap: 6px; }
.sdc-session-card__course .sdc-ico { color: var(--sdc-accent); }
.sdc-meta { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-direction: column; gap: 7px; }
.sdc-meta li { display: flex; align-items: center; gap: 9px; color: var(--sdc-muted); font-size: 14px; }
.sdc-meta li .sdc-ico { color: var(--sdc-sold); }
.sdc-meta li.is-low { color: var(--sdc-accent-dark); font-weight: 600; }
.sdc-meta li.is-low .sdc-ico { color: var(--sdc-accent-dark); }

/* Confirmation SVG icon */
.sdc-confirm__icon svg { display: block; }
.sdc-empty .sdc-ico { color: var(--sdc-accent); vertical-align: middle; margin-right: 5px; }

@media (max-width: 860px) {
    .sdc-steps { grid-template-columns: 1fr; }
    .sdc-steps-wrap { margin-top: -56px; }
    .sdc-hero__inner { padding: 80px 24px 96px; }
}

@media (prefers-reduced-motion: reduce) {
    .sdc-orbit, .sdc-spark-node { animation: none; }
}

/* ===== Enhanced header ===== */
.sdc-topbar { background: #0e1830; color: #aab6d2; font-size: 13px; }
.sdc-topbar__inner { max-width: var(--sdc-max); margin: 0 auto; padding: 8px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.sdc-topbar__msg { display: inline-flex; align-items: center; gap: 8px; }
.sdc-topbar__msg .sdc-ico { color: var(--sdc-accent); }
.sdc-topbar__links a { color: #c3cde3; text-decoration: none; margin-left: 18px; }
.sdc-topbar__links a:hover { color: #fff; }
.sdc-header__inner { position: relative; }
.sdc-header__brand { display: inline-flex; align-items: center; gap: 11px; }
.sdc-logo-mark { display: block; flex-shrink: 0; }
.sdc-header__name { font-family: var(--sdc-font-display); font-weight: 700; font-size: 19px; color: var(--sdc-ink); letter-spacing: -.02em; }
.sdc-header__nav { display: flex; align-items: center; gap: 24px; }
.sdc-menu { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.sdc-menu a { color: var(--sdc-ink); text-decoration: none; font-weight: 500; font-size: 15px; }
.sdc-menu a:hover { color: var(--sdc-action); }
.sdc-nav__cta { display: none; }
.sdc-header__actions { display: flex; align-items: center; gap: 14px; }
.sdc-nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 42px; height: 42px; padding: 0 11px; border: 1px solid var(--sdc-line); border-radius: 8px; background: #fff; cursor: pointer; }
.sdc-nav-toggle span { display: block; height: 2px; background: var(--sdc-ink); border-radius: 2px; transition: transform .2s, opacity .2s; }

/* ===== Hero extras ===== */
.sdc-hero__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.sdc-btn--light { background: rgba(255,255,255,.10); color: #fff; border-color: rgba(255,255,255,.26); }
.sdc-btn--light:hover { background: rgba(255,255,255,.18); }
.sdc-btn--accent { background: var(--sdc-accent); color: #1f2433; }
.sdc-btn--accent:hover { background: var(--sdc-accent-dark); }
.sdc-hero__stats { list-style: none; display: flex; gap: 52px; justify-content: center; margin: 52px 0 0; padding: 0; flex-wrap: wrap; }
.sdc-hero__stats li { text-align: center; }
.sdc-hero__stats strong { display: block; font-family: var(--sdc-font-display); font-size: 32px; line-height: 1; color: #fff; }
.sdc-hero__stats span { color: #9fb2d6; font-size: 13.5px; }

/* ===== Section heads ===== */
.sdc-sec-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-bottom: 40px; }
.sdc-sec-head--center { justify-content: center; text-align: center; }
.sdc-sec-head .sdc-section-title { margin: 0; }
.sdc-sec-head .sdc-eyebrow { margin-bottom: 8px; }
.sdc-eyebrow--center { justify-content: center; }

/* ===== Features ===== */
.sdc-features-band { background: var(--sdc-paper); border-top: 1px solid var(--sdc-line); border-bottom: 1px solid var(--sdc-line); }
.sdc-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.sdc-feature__ico { display: inline-flex; align-items: center; justify-content: center; width: 50px; height: 50px; border-radius: 14px; background: #eef0fb; color: var(--sdc-action); margin-bottom: 16px; }
.sdc-feature h3 { font-family: var(--sdc-font-display); font-size: 18px; margin: 0 0 6px; letter-spacing: -.01em; }
.sdc-feature p { color: var(--sdc-muted); font-size: 14.5px; line-height: 1.55; margin: 0; }

/* ===== Testimonials ===== */
.sdc-testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.sdc-quote { background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 32px; box-shadow: var(--sdc-shadow); }
.sdc-quote__mark { color: var(--sdc-accent); margin-bottom: 12px; }
.sdc-quote blockquote { margin: 0 0 18px; font-size: 16px; line-height: 1.6; color: #28303f; }
.sdc-quote figcaption strong { display: block; font-weight: 600; }
.sdc-quote figcaption span { color: var(--sdc-muted); font-size: 13px; }

/* ===== FAQ ===== */
.sdc-faq { max-width: 780px; margin: 0 auto; }
.sdc-faq__item { border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius-sm); background: var(--sdc-paper); margin-bottom: 14px; }
.sdc-faq__item summary { list-style: none; cursor: pointer; padding: 20px 24px; font-weight: 600; font-size: 16px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.sdc-faq__item summary::-webkit-details-marker { display: none; }
.sdc-faq__sign { position: relative; width: 16px; height: 16px; flex-shrink: 0; }
.sdc-faq__sign::before, .sdc-faq__sign::after { content: ""; position: absolute; background: var(--sdc-action); border-radius: 2px; transition: transform .2s; }
.sdc-faq__sign::before { top: 7px; left: 1px; width: 14px; height: 2px; }
.sdc-faq__sign::after { left: 7px; top: 1px; width: 2px; height: 14px; }
.sdc-faq__item[open] .sdc-faq__sign::after { transform: scaleY(0); }
.sdc-faq__a { padding: 0 22px 20px; }
.sdc-faq__a p { margin: 0; color: var(--sdc-muted); line-height: 1.6; }

/* ===== CTA band ===== */
.sdc-cta-band { background: linear-gradient(135deg, #1b2d52, #13203a); color: #fff; position: relative; overflow: hidden; }
.sdc-cta-band__inner { max-width: 720px; margin: 0 auto; padding: 100px 24px; text-align: center; position: relative; z-index: 1; }
.sdc-cta-band__art { position: absolute; right: -28px; top: -36px; color: rgba(246,183,60,.12); z-index: 0; pointer-events: none; }
.sdc-cta-band h2 { font-family: var(--sdc-font-display); font-size: clamp(28px, 4vw, 40px); margin: 0 0 12px; letter-spacing: -.02em; }
.sdc-cta-band p { color: #c7d2e6; font-size: 17px; margin: 0 0 28px; }

/* ===== Page head ===== */
.sdc-page-head { background: var(--sdc-paper); border-bottom: 1px solid var(--sdc-line); }
.sdc-page-head__inner { text-align: center; padding-top: 80px; padding-bottom: 80px; }
.sdc-page-head__title { font-family: var(--sdc-font-display); font-size: clamp(32px, 5vw, 48px); margin: 6px 0 12px; letter-spacing: -.025em; }
.sdc-page-head__sub { color: var(--sdc-muted); font-size: 17px; max-width: 560px; margin: 0 auto; }

/* ===== Single course extras ===== */
.sdc-course__eyebrow { display: inline-flex; align-items: center; gap: 7px; color: #9fb2d6; text-transform: uppercase; letter-spacing: .14em; font-size: 12.5px; font-weight: 600; margin: 0 0 12px; }
.sdc-course__eyebrow .sdc-ico { color: var(--sdc-accent); }
.sdc-course__facts { list-style: none; display: flex; gap: 22px; flex-wrap: wrap; margin: 18px 0 0; padding: 0; }
.sdc-course__facts li { display: inline-flex; align-items: center; gap: 8px; color: #c7d2e6; font-size: 15px; }
.sdc-course__facts li .sdc-ico { color: #aebcdc; }
.sdc-course__layout { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }
.sdc-course__main { min-width: 0; }
.sdc-book-card { position: sticky; top: 96px; background: var(--sdc-paper); border: 1px solid var(--sdc-line); border-radius: var(--sdc-radius); padding: 30px; box-shadow: var(--sdc-shadow); }
.sdc-book-card__price { font-family: var(--sdc-font-display); font-size: 30px; font-weight: 700; margin: 0 0 18px; }
.sdc-book-card__price span { display: block; font-family: var(--sdc-font-body); font-size: 12px; font-weight: 600; color: var(--sdc-muted); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 2px; }
.sdc-book-card__facts { list-style: none; margin: 0 0 20px; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.sdc-book-card__facts li { display: flex; gap: 10px; align-items: flex-start; color: #28303f; font-size: 14.5px; }
.sdc-book-card__facts li .sdc-ico { color: var(--sdc-action); margin-top: 1px; }
.sdc-book-card__good { list-style: none; margin: 18px 0 0; padding: 18px 0 0; border-top: 1px solid var(--sdc-line); display: flex; flex-direction: column; gap: 10px; }
.sdc-book-card__good li { display: flex; align-items: center; gap: 9px; color: var(--sdc-muted); font-size: 13.5px; }
.sdc-book-card__good li .sdc-ico { color: var(--sdc-ok); }

/* ===== Enhanced footer ===== */
.sdc-footer { background: var(--sdc-ink); color: #b9c3d6; padding: 72px 24px 32px; }
.sdc-footer__top { max-width: var(--sdc-max); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.10); }
.sdc-footer__logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-family: var(--sdc-font-display); font-weight: 700; font-size: 18px; text-decoration: none; margin-bottom: 14px; }
.sdc-footer__about { color: #93a1bd; font-size: 14px; line-height: 1.6; margin: 0 0 14px; max-width: 340px; }
.sdc-footer__trust { display: inline-flex; align-items: center; gap: 8px; color: #b9c3d6; font-size: 13px; margin: 0; }
.sdc-footer__trust .sdc-ico { color: var(--sdc-accent); }
.sdc-footer__col h4 { color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 16px; }
.sdc-footer__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.sdc-footer__col a { color: #b9c3d6; text-decoration: none; font-size: 14px; }
.sdc-footer__col a:hover { color: #fff; }
.sdc-footer__bottom { max-width: var(--sdc-max); margin: 0 auto; padding-top: 22px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: #8d9ab5; }
.sdc-footer__bottom p { margin: 0; }
.sdc-footer__legal a { color: #b9c3d6; text-decoration: none; margin-left: 18px; }
.sdc-footer__legal a:hover { color: #fff; }

/* ===== Mobile ===== */
@media (max-width: 980px) {
    .sdc-course__layout { grid-template-columns: 1fr; gap: 32px; }
    .sdc-book-card { position: static; }
    .sdc-features { grid-template-columns: repeat(2, 1fr); }
    .sdc-testimonials { grid-template-columns: 1fr; }
    .sdc-footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .sdc-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
    .sdc-nav-toggle { display: flex; }
    .sdc-header__nav { position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--sdc-line); box-shadow: 0 16px 30px rgba(19,32,58,.10); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 18px 18px; display: none; }
    .sdc-nav-open .sdc-header__nav { display: flex; }
    .sdc-nav-open .sdc-nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .sdc-nav-open .sdc-nav-toggle span:nth-child(2) { opacity: 0; }
    .sdc-nav-open .sdc-nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .sdc-menu { flex-direction: column; gap: 0; width: 100%; }
    .sdc-menu li { border-bottom: 1px solid #f0f1f4; }
    .sdc-menu a { display: block; padding: 13px 4px; }
    .sdc-nav__cta { display: inline-flex; margin-top: 14px; }
    .sdc-header__cta { display: none; }
    .sdc-topbar__msg { display: none; }
    .sdc-topbar__inner { justify-content: flex-end; }
    .sdc-sec-head { flex-direction: column; align-items: flex-start; }
    .sdc-sec-head--center { align-items: center; }
    .sdc-features { grid-template-columns: 1fr; }
    .sdc-footer__top { grid-template-columns: 1fr; }
    .sdc-footer__bottom { flex-direction: column; align-items: flex-start; }
    .sdc-footer__legal a { margin-left: 0; margin-right: 18px; }
}

/* ===== Heading weights (Sora 700) ===== */
.sdc-hero__title, .sdc-page-head__title, .sdc-course__title, .sdc-cta-band h2,
.sdc-step h3, .sdc-feature h3, .sdc-section-title { font-weight: 700; }

/* ===== Prose typography (course content + legal pages) ===== */
.sdc-article__content, .sdc-course__content { font-size: 16px; line-height: 1.7; color: #2a3346; }
.sdc-article__content > *:first-child, .sdc-course__content > *:first-child { margin-top: 0; }
.sdc-article__content h1, .sdc-article__content h2, .sdc-article__content h3,
.sdc-course__content h2, .sdc-course__content h3 { font-family: var(--sdc-font-display); font-weight: 700; letter-spacing: -.01em; color: var(--sdc-ink); line-height: 1.25; }
.sdc-article__content h2, .sdc-course__content h2 { font-size: 22px; margin: 38px 0 12px; }
.sdc-article__content h3, .sdc-course__content h3 { font-size: 19px; margin: 32px 0 10px; }
.sdc-article__content p, .sdc-course__content p { margin: 0 0 16px; }
.sdc-article__content ul, .sdc-article__content ol,
.sdc-course__content ul, .sdc-course__content ol { margin: 0 0 18px; padding-left: 22px; }
.sdc-article__content li, .sdc-course__content li { margin-bottom: 8px; }
.sdc-article__content a, .sdc-course__content a { color: var(--sdc-action); }

/* Article page width */
.sdc-article { max-width: 760px; margin: 0 auto; }
.sdc-article > h1 { font-family: var(--sdc-font-display); font-weight: 700; font-size: clamp(30px, 4vw, 40px); letter-spacing: -.025em; line-height: 1.15; margin: 0 0 24px; }

/* A little more air on the hero subhead and course media */
.sdc-hero__sub { margin-bottom: 38px; }
.sdc-course__media { margin-bottom: 28px; }
.sdc-course__media img { border-radius: var(--sdc-radius); display: block; width: 100%; height: auto; }