/*
 * Public Shell V1
 * Structural, brand-neutral CSS only.
 * Final colors, typography, logo treatment and visual tokens must come from
 * the canonical TPLO house-style source once supplied.
 */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: CanvasText;
    background: Canvas;
    line-height: 1.5;
}

a {
    color: LinkText;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid currentColor;
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    inset-inline-start: 1rem;
    inset-block-start: 1rem;
    transform: translateY(-200%);
    padding: 0.75rem 1rem;
    border: 2px solid currentColor;
    background: Canvas;
    color: CanvasText;
    z-index: 1000;
}

.skip-link:focus {
    transform: translateY(0);
}

.shell {
    width: min(100% - 2rem, 72rem);
    margin-inline: auto;
}

.site-header {
    border-block-end: 1px solid currentColor;
}

.shell-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding-block: 1rem;
}

.site-name {
    font-weight: 700;
    text-decoration: none;
    color: inherit;
}

.primary-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
}

.primary-nav a {
    color: inherit;
}

.primary-action {
    display: inline-block;
    border: 2px solid currentColor;
    padding: 0.55rem 0.85rem;
    color: inherit;
    text-decoration: none;
    font-weight: 700;
}

.hero-section {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(20rem, 1.1fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
    padding-block: clamp(2rem, 6vw, 5rem);
}

.hero-copy h1 {
    max-width: 20ch;
    margin-block-start: 0.35rem;
}

.eyebrow {
    margin-block-end: 0;
    font-weight: 700;
}

.scan-panel {
    border: 2px solid currentColor;
    padding: clamp(1rem, 3vw, 2rem);
    min-width: 0;
}

.profile-scan-embed {
    width: 100%;
    min-width: 0;
}

.integration-unavailable {
    border-inline-start: 4px solid currentColor;
    padding-inline-start: 1rem;
}

.section {
    padding-block: clamp(2rem, 5vw, 4rem);
    border-block-start: 1px solid currentColor;
}

.narrow-content {
    max-width: 52rem;
}

.fact-list,
.steps {
    padding-inline-start: 1.5rem;
}

.fact-list li,
.steps li {
    margin-block: 0.5rem;
}

.split-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.5rem, 4vw, 4rem);
}

.site-footer {
    border-block-start: 1px solid currentColor;
    padding-block: 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1.5rem;
}

.footer-grid h2 {
    font-size: 1rem;
}

.footer-grid a {
    display: block;
    margin-block: 0.45rem;
}

@media (max-width: 48rem) {
    html {
        scroll-behavior: auto;
    }

    .shell-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .primary-nav {
        justify-content: flex-start;
    }

    .hero-section,
    .split-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 30rem) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}


/* Public Catalog V1 — structural additions, still brand-neutral. */
.catalog-intro {
    max-width: 60rem;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.course-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    border: 1px solid currentColor;
    padding: 1.25rem;
    min-width: 0;
}

.course-card h3 {
    margin-block: 0.25rem 0.75rem;
}

.course-card .primary-action {
    margin-block-start: auto;
}

.course-code {
    margin: 0;
    font-weight: 700;
}

.course-meta {
    width: 100%;
    margin-block: 1rem;
}

.course-meta > div {
    display: grid;
    grid-template-columns: minmax(5rem, 0.7fr) minmax(0, 1.3fr);
    gap: 1rem;
    padding-block: 0.35rem;
    border-block-start: 1px solid currentColor;
}

.course-meta dt {
    font-weight: 700;
}

.course-meta dd {
    margin: 0;
}

.unlimited-promo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.course-summary {
    max-width: 60rem;
}

.course-lead {
    max-width: 65ch;
    font-size: 1.125rem;
}

.course-meta-detail {
    max-width: 36rem;
}

.source-note {
    margin-block-start: 2rem;
    font-size: 0.875rem;
}

@media (max-width: 60rem) {
    .course-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 42rem) {
    .course-grid {
        grid-template-columns: 1fr;
    }

    .unlimited-promo {
        align-items: flex-start;
        flex-direction: column;
    }
}


/* Public Product Detail V1 — structural additions, still brand-neutral. */
.product-detail-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(17rem, 0.65fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
}

.product-detail-main {
    min-width: 0;
}

.purchase-panel {
    border: 2px solid currentColor;
    padding: 1.25rem;
}

.purchase-panel h2 {
    margin-block-start: 0;
}

.purchase-price {
    font-size: 1.5rem;
    font-weight: 700;
}

.purchase-price span {
    font-size: 0.875rem;
    font-weight: 400;
}

.supporting-note {
    font-size: 0.875rem;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
}

.product-detail-grid section + section {
    margin-block-start: 2rem;
}

.topic-list {
    padding-inline-start: 1.25rem;
}

.topic-list li {
    margin-block: 0.5rem;
}

.product-detail-final {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.source-note-block {
    padding-block: 1.5rem 3rem;
}

@media (max-width: 48rem) {
    .product-detail-hero,
    .product-detail-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-final {
        align-items: flex-start;
        flex-direction: column;
    }
}