:root {
    color-scheme: dark light;
    --cms-bg: var(--ap-bg-page, #0f1218);
    --cms-surface: var(--ap-bg-surface, #171b24);
    --cms-surface-muted: var(--ap-bg-elevated, #202635);
    --cms-border: var(--ap-border-default, #343b4d);
    --cms-border-strong: var(--ap-bg-border, #4a5265);
    --cms-text: var(--ap-text-primary, #f3f5f8);
    --cms-muted: var(--ap-text-secondary, #b9c0ca);
    --cms-accent: var(--ap-action-primary, #4f8cff);
    --cms-accent-strong: var(--ap-action-primary-hover, #8ab4ff);
    --cms-success: var(--ap-success, #4caf50);
    --cms-warning: var(--ap-warning, #f6c343);
    --cms-review: var(--ap-info, #8ab4ff);
    --cms-radius: var(--ap-radius-md, 8px);
    --cms-shadow: var(--ap-shadow-md, 0 12px 28px rgba(0, 0, 0, 0.24));
    --cms-touch-target: var(--ap-touch-target-min, 44px);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
    padding: 0;
    background: var(--cms-bg);
    color: var(--cms-text);
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
}

html[data-ap-base="light"] {
    color-scheme: light;
}

html[data-ap-base="dark"] {
    color-scheme: dark;
}

a {
    color: inherit;
}

button,
input,
textarea {
    font: inherit;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 12px;
    font-size: clamp(1.9rem, 3vw, 2.6rem);
    line-height: 1.12;
}

h2 {
    margin-bottom: 8px;
    font-size: 1.3rem;
}

h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

/* Skip link — keyboard users jump straight to the main content. */
.site-skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    z-index: 50;
    min-height: var(--cms-touch-target);
    padding: 10px 14px;
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    background: var(--cms-surface);
    color: var(--cms-text);
    text-decoration: none;
}

.site-skip-link:focus {
    left: 12px;
    top: 12px;
}

/* Public site shell */
.site-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--cms-bg);
}

.site-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--cms-border);
    background: color-mix(in srgb, var(--cms-surface) 92%, transparent);
}

.site-brand {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.2;
    text-decoration: none;
}

.site-brand-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--cms-text);
}

.site-brand-tagline {
    font-size: 0.8rem;
    color: var(--cms-muted);
}

.site-nav {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 4px;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: var(--cms-touch-target);
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--cms-muted);
    font-weight: 600;
    text-decoration: none;
}

.site-nav a:hover {
    background: var(--cms-surface-muted);
    color: var(--cms-text);
}

.site-main {
    flex: 1 1 auto;
    width: min(960px, 100%);
    margin: 0 auto;
    padding: 40px 24px 56px;
}

/* Home */
.site-hero {
    max-width: 720px;
    margin-bottom: 40px;
}

.site-eyebrow {
    margin: 0 0 8px;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--cms-accent-strong);
}

.site-lead {
    max-width: 640px;
    font-size: 1.1rem;
    color: var(--cms-muted);
}

.site-cta {
    display: inline-flex;
    align-items: center;
    min-height: var(--cms-touch-target);
    margin-top: 20px;
    padding: 10px 20px;
    border-radius: var(--cms-radius);
    background: var(--cms-accent);
    color: #ffffff;
    font-weight: 700;
    text-decoration: none;
}

.site-cta:hover {
    background: var(--cms-accent-strong);
}

.site-section {
    margin-bottom: 32px;
}

.site-focus-list {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--cms-muted);
}

.site-focus-list li {
    margin-bottom: 6px;
}

/* Prose pages (legal notices, 404) */
.site-prose {
    max-width: 720px;
}

.site-prose p {
    color: var(--cms-muted);
}

.site-placeholder {
    padding: 12px 14px;
    border: 1px dashed var(--cms-border-strong);
    border-radius: var(--cms-radius);
    background: var(--cms-surface-muted);
    color: var(--cms-muted);
    font-size: 0.9rem;
}

/* Portfolio */
.site-portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.site-portfolio-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    background: var(--cms-surface);
    text-decoration: none;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.site-portfolio-card:hover {
    border-color: var(--cms-border-strong);
    transform: translateY(-2px);
}

.site-portfolio-card-cover {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: var(--cms-surface-muted);
}

.site-portfolio-card-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
}

.site-portfolio-card-title {
    margin: 0;
    font-size: 1.15rem;
    color: var(--cms-text);
}

.site-portfolio-card-summary {
    margin: 0;
    color: var(--cms-muted);
    font-size: 0.95rem;
}

/* Tech-stack chips (Portfolio card + detail) */
.site-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 8px 0 0;
    padding: 0;
    list-style: none;
}

.site-chip {
    padding: 3px 10px;
    border: 1px solid var(--cms-border);
    border-radius: 999px;
    background: var(--cms-surface-muted);
    color: var(--cms-muted);
    font-size: 0.8rem;
    font-weight: 600;
}

/* Blog filter bars (topic + tag) and pagination — WI-15.
   Chips are anchors here (Static-SSR navigation), so they get a tap-friendly hit area and an
   active/pressed state for the current filter. */
.site-topic-filter,
.site-tag-filter {
    align-items: center;
    margin: 16px 0 24px;
}

a.site-chip {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    text-decoration: none;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

a.site-chip:hover {
    border-color: var(--cms-accent);
    color: var(--cms-text);
}

.site-chip-active {
    border-color: var(--cms-accent);
    background: var(--cms-accent);
    color: var(--ap-action-primary-contrast, #0f1218);
}

a.site-chip-active:hover {
    color: var(--ap-action-primary-contrast, #0f1218);
}

.site-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 32px;
}

.site-pagination-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: var(--cms-touch-target);
    min-height: var(--cms-touch-target);
    padding: 0 12px;
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    background: var(--cms-surface-muted);
    color: var(--cms-muted);
    font-weight: 600;
    text-decoration: none;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.site-pagination-link:hover {
    border-color: var(--cms-accent);
    color: var(--cms-text);
}

.site-pagination-current {
    border-color: var(--cms-accent);
    background: var(--cms-accent);
    color: var(--ap-action-primary-contrast, #0f1218);
}

.site-portfolio-detail-cover {
    width: 100%;
    max-width: 720px;
    margin: 16px 0;
    border-radius: var(--cms-radius);
}

.site-portfolio-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

/* Footer */
.site-footer {
    padding: 24px;
    border-top: 1px solid var(--cms-border);
    background: var(--cms-surface);
}

.site-footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: min(960px, 100%);
    margin: 0 auto;
}

.site-footer-brand {
    display: inline-flex;
    flex-direction: column;
}

.site-footer-name {
    font-weight: 700;
    color: var(--cms-text);
}

.site-footer-tagline {
    font-size: 0.85rem;
    color: var(--cms-muted);
}

.site-footer-nav {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 4px;
}

.site-footer-nav a {
    display: inline-flex;
    align-items: center;
    min-height: var(--cms-touch-target);
    padding: 8px 12px;
    color: var(--cms-muted);
    font-weight: 600;
    text-decoration: none;
}

.site-footer-nav a:hover {
    color: var(--cms-text);
}

.site-footer-copy {
    width: min(960px, 100%);
    margin: 16px auto 0;
    color: var(--cms-muted);
    font-size: 0.85rem;
}

/* Platform SSO fallback (Account/Login) */
.cms-login-panel {
    display: grid;
    gap: 18px;
    width: min(560px, 100%);
    margin: 64px auto;
    padding: 24px;
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    background: var(--cms-surface);
    box-shadow: var(--cms-shadow);
}

.cms-eyebrow {
    margin: 0 0 4px;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--cms-muted);
}

.cms-lede {
    max-width: 760px;
    margin-bottom: 0;
    color: var(--cms-muted);
}

/* Responsive */
@media (max-width: 640px) {
    .site-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 14px 16px;
    }

    .site-nav {
        gap: 2px;
    }

    .site-main {
        padding: 28px 16px 40px;
    }

    .site-footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}