/* ==========================================================================
   Materia M3 — Layout
   Page chrome (drawer + main + sidebar grid), site-content widths,
   responsive breakpoints, post-card grid, single-post layout.
   ========================================================================== */

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-content-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1240px;
    margin: 0 auto;
    padding: 2rem 1rem;
    width: 100%;
    flex: 1;
}

@media (min-width: 960px) {
    body.has-sidebar .site-content-wrap {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 3rem;
        padding: 2rem;
    }
}

.site-main {
    min-width: 0; /* prevent grid blowout */
}

.site-sidebar {
    min-width: 0;
}

/* ==========================================================================
   Hero / banner area for archive pages
   ========================================================================== */
.m3-hero {
    background-color: var(--md-sys-color-surface-container);
    border-radius: var(--md-sys-shape-corner-extra-large);
    padding: 2.5rem 2rem;
    margin-bottom: 2rem;
    text-align: center;
}
.m3-hero__eyebrow {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1px;
    color: var(--md-sys-color-primary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.m3-hero__title {
    font-family: var(--md-sys-typescale-font-brand);
    font-size: 36px;
    line-height: 44px;
    font-weight: 400;
    margin: 0 0 0.5rem;
    color: var(--md-sys-color-on-surface);
}
.m3-hero__subtitle {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 16px;
    line-height: 24px;
    margin: 0;
}

/* ==========================================================================
   Post card grid (used by index, archive, search)
   ========================================================================== */
.m3-post-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 600px) {
    .m3-post-grid--2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
    .m3-post-grid--3 { grid-template-columns: repeat(3, 1fr); }
}

.m3-post-card {
    /* Inherits .m3-card --elevated */
    transition:
        transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized),
        box-shadow var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}
.m3-post-card:hover { transform: translateY(-2px); }

.m3-post-card__categories {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}
.m3-post-card__category {
    background-color: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
    padding: 2px 12px;
    border-radius: var(--md-sys-shape-corner-small);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
}

.m3-post-card__title-link {
    color: inherit;
    text-decoration: none;
}
.m3-post-card__title-link:hover {
    color: var(--md-sys-color-primary);
    text-decoration: none;
}

.m3-post-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 8px;
}
.m3-post-card__meta .m3-icon { font-size: 16px; }
.m3-post-card__meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.m3-post-card__excerpt {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 14px;
    line-height: 20px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    margin: 0;
}

/* ==========================================================================
   Single post layout
   ========================================================================== */
.m3-single {
    max-width: 760px;
    margin: 0 auto;
}
.m3-single__hero {
    margin: 0 0 2rem;
    border-radius: var(--md-sys-shape-corner-large);
    overflow: hidden;
    aspect-ratio: 16/9;
    background-color: var(--md-sys-color-surface-container-high);
}
.m3-single__hero img { width: 100%; height: 100%; object-fit: cover; }

/* Front-page hero spans the full content-area width — i.e. the
 * `.site-content-wrap`'s 1240-px max-width box including its 1rem
 * horizontal padding (so the hero aligns with the wrap's outer
 * edges, not with the inner content-box that the post grid uses).
 * `calc(100% + 2rem)` plus the matching negative margins absorb
 * exactly the wrap's left/right padding. */
.m3-front-page .m3-single__hero {
    width: calc(100% + 2rem);
    margin-left:  -1rem;
    margin-right: -1rem;
}

.m3-single__header {
    margin-bottom: 2rem;
}
.m3-single__categories {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}
.m3-single__title {
    font-family: var(--md-sys-typescale-font-brand);
    font-size: 36px;
    line-height: 44px;
    font-weight: 400;
    margin: 0 0 1rem;
    color: var(--md-sys-color-on-surface);
}
@media (min-width: 600px) {
    .m3-single__title { font-size: 45px; line-height: 52px; }
}
.m3-single__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 14px;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.m3-single__author {
    display: flex;
    align-items: center;
    gap: 8px;
}
.m3-single__author-avatar img {
    width: 32px; height: 32px;
    border-radius: 50%;
}
.m3-single__author-name {
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
}
.m3-single__date,
.m3-single__reading-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.m3-single__content {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 2rem;
}
.m3-single__content > * + * { margin-top: 1.25rem; }
.m3-single__content > * {
    max-width: 100%;
}

.m3-single__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin: 2rem 0;
    padding-top: 1rem;
    border-top: 1px solid var(--md-sys-color-outline-variant);
}
.m3-single__tags-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
}

.m3-author-bio {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--md-sys-color-surface-container-low);
    border-radius: var(--md-sys-shape-corner-large);
    margin: 2rem 0;
}
.m3-author-bio__avatar img {
    width: 56px; height: 56px;
    border-radius: 50%;
}
.m3-author-bio__name {
    font-weight: 500;
    margin: 0 0 4px;
    font-size: 16px;
}
.m3-author-bio__description {
    font-size: 14px;
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    padding: 3rem 1rem 2rem;
    margin-top: 3rem;
}
.site-footer__inner {
    max-width: 1240px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 720px) {
    .site-footer__inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer__brand {
    font-family: var(--md-sys-typescale-font-brand);
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 0.5rem;
}
.site-footer__tagline {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 14px;
    margin-bottom: 1rem;
}
.site-footer h2 {
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 0.75rem;
    color: var(--md-sys-color-on-surface-variant);
}
.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.site-footer li { padding: 0.25rem 0; }
.site-footer a {
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
}
.site-footer a:hover {
    color: var(--md-sys-color-primary);
    text-decoration: underline;
}
.site-info {
    max-width: 1240px;
    margin: 2rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid var(--md-sys-color-outline-variant);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
}
.site-info a { color: inherit; }

.social-links {
    display: flex;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
    transition: background-color var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}
.social-links a:hover {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

/* ==========================================================================
   404 page
   ========================================================================== */
.error-404 {
    text-align: center;
    padding: 4rem 1rem;
}
.error-404 .m3-icon--xl {
    color: var(--md-sys-color-primary);
    margin-bottom: 1rem;
    font-size: 96px;
}
.error-404 h1 {
    font-family: var(--md-sys-typescale-font-brand);
    font-size: 57px;
    line-height: 64px;
    margin: 0;
    color: var(--md-sys-color-primary);
}
.error-404 p {
    color: var(--md-sys-color-on-surface-variant);
    max-width: 500px;
    margin: 1rem auto 2rem;
}

/* ==========================================================================
   Primary nav (top app bar)
   The navigation drawer has been removed (header.php no longer renders
   one), so the primary menu is the sole nav surface. It scrolls
   horizontally on small screens rather than collapsing into a drawer.
   ========================================================================== */
.primary-nav-desktop {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;          /* Firefox */
}
.primary-nav-desktop::-webkit-scrollbar { display: none; }

.primary-menu-desktop {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.primary-menu-desktop > li { flex: 0 0 auto; }
.primary-menu-desktop > li > a {
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 16px;
    border-radius: var(--md-sys-shape-corner-full);
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1px;
    white-space: nowrap;
    position: relative;
    transition: background-color var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}
.primary-menu-desktop > li > a:hover {
    background-color: var(--md-sys-color-surface-container-high);
}
.primary-menu-desktop > li.current-menu-item > a,
.primary-menu-desktop > li.current_page_item > a {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}


/* Container utility */
.m3-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1rem;
}
@media (min-width: 720px) {
    .m3-container { padding: 0 2rem; }
}

/* Read-more / continue reading link */
.more-link,
.read-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 0.5rem;
    color: var(--md-sys-color-primary);
    font-weight: 500;
    text-decoration: none;
}
.more-link::after,
.read-more::after {
    content: "→";
    transition: transform var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}
.more-link:hover::after,
.read-more:hover::after {
    transform: translateX(4px);
}