/* =============================================================
   THE DIGITAL CURATOR — mattwaite.github.io
   Design System: Editorial Lab
   Typefaces: Noto Serif / Inter / Work Sans
   Palette: Charcoal Primary / Academic Crimson / Warm Surface
   ============================================================= */

/* === DESIGN TOKENS ========================================== */
:root {
    /* Brand Colors */
    --primary:            #040505;
    --primary-container:  #1e1e1e;
    --secondary:          #b42720;
    --on-primary:         #ffffff;
    --on-primary-container: #878585;

    /* Surface Hierarchy */
    --surface:              #faf9f9;
    --surface-lowest:       #ffffff;
    --surface-low:          #f4f3f3;
    --surface-container:    #eeeeee;
    --surface-high:         #e8e8e8;
    --surface-highest:      #e3e2e2;
    --surface-variant:      #e3e2e2;

    /* Text */
    --on-surface:         #1a1c1c;
    --on-surface-variant: #444748;
    --outline-variant:    #c4c7c7;

    /* Typography */
    --font-headline: 'Noto Serif', 'clarendon-urw', Georgia, serif;
    --font-body:     'Inter', system-ui, sans-serif;
    --font-label:    'Work Sans', system-ui, sans-serif;

    /* Layout */
    --container-max: 1200px;
    --container-pad: 1.5rem;
    --section-gap:   6rem;
}

/* === GLOBAL ================================================= */
* {
    border-radius: 0 !important;
}

body {
    font-family: var(--font-body);
    background-color: var(--surface);
    color: var(--on-surface);
    font-size: 1rem;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.15;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--secondary);
}

/* === NAVBAR (Glassmorphism) ================================= */
.navbar {
    background-color: rgba(255, 255, 255, 0.82) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 0.5px solid rgba(196, 199, 199, 0.5) !important;
    padding: 0.9rem 1.5rem;
    box-shadow: none !important;
}

.navbar-brand {
    font-family: var(--font-headline);
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--primary) !important;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    border-bottom: none;
}

.navbar-nav .nav-link,
.navbar-nav .nav-link.active {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--on-surface-variant) !important;
    border-bottom: none;
    padding: 0.5rem 0.75rem;
    transition: color 0.15s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary) !important;
}

.navbar .bi-github,
.navbar [class*="icon"] {
    color: var(--on-surface-variant);
    font-size: 1.1rem;
    border-bottom: none;
    transition: color 0.15s ease;
}

.navbar .bi-github:hover {
    color: var(--primary);
}

.navbar .navbar-toggler {
    border-color: rgba(4, 5, 5, 0.2);
}

/* === SHARED UTILITIES ======================================= */
.dc-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

.dc-label {
    font-family: var(--font-label);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 1.25rem;
}

.dc-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
}

.dc-section-title {
    font-family: var(--font-headline);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.dc-section-underline {
    width: 5rem;
    height: 4px;
    background-color: var(--secondary);
    margin-top: 0.5rem;
}

.dc-archive-link {
    font-family: var(--font-label);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--secondary) !important;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid var(--secondary) !important;
    padding-bottom: 0.2rem;
    white-space: nowrap;
    transition: opacity 0.15s ease;
}

.dc-archive-link:hover {
    opacity: 0.7;
    color: var(--secondary) !important;
}

/* === HERO SECTION =========================================== */
.dc-hero {
    padding: 5rem var(--container-pad) 7rem;
    background-color: var(--surface);
    overflow: hidden;
}

.dc-hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .dc-hero-content {
        grid-template-columns: 8fr 4fr;
    }
}

.dc-hero-text h1 {
    font-family: var(--font-headline);
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 900;
    color: var(--primary);
    line-height: 0.92;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
}

.dc-hero-text > p {
    font-family: var(--font-body);
    font-size: 1.2rem;
    color: var(--on-surface-variant);
    max-width: 36rem;
    line-height: 1.65;
    margin-bottom: 2.5rem;
}

.dc-hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.dc-btn-primary {
    background: var(--primary);
    color: var(--on-primary) !important;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    padding: 0.9rem 2rem;
    border-bottom: none !important;
    display: inline-block;
    transition: background 0.2s ease;
    letter-spacing: 0.01em;
}

.dc-btn-primary:hover {
    background: var(--secondary) !important;
    color: white !important;
}

.dc-btn-secondary {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary) !important;
    padding: 0.9rem 0.5rem;
    border-bottom: 2px solid var(--primary) !important;
    display: inline-block;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.dc-btn-secondary:hover {
    color: var(--secondary) !important;
    border-bottom-color: var(--secondary) !important;
}

.dc-hero-portrait {
    position: relative;
}

.dc-hero-portrait img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    object-position: top center;
    filter: grayscale(100%);
    transition: filter 0.7s ease;
    display: block;
}

.dc-hero-portrait:hover img {
    filter: grayscale(0%);
}

.dc-hero-accent {
    position: absolute;
    bottom: -1rem;
    left: -1rem;
    width: 5.5rem;
    height: 5.5rem;
    background-color: var(--secondary);
    z-index: -1;
}

/* === FEATURED PROJECTS (Bento Grid) ======================== */
.dc-projects {
    padding: var(--section-gap) var(--container-pad);
    background-color: var(--surface-low);
}

.dc-bento {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .dc-bento {
        grid-template-columns: repeat(12, 1fr);
    }
}

/* ---- Large card (7/12) ------------------------------------ */
.dc-card-large {
    background: var(--surface-lowest);
    border-left: 4px solid var(--secondary);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 420px;
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

@media (min-width: 768px) {
    .dc-card-large { grid-column: span 7; }
}

.dc-card-large:hover {
    box-shadow: 0 20px 40px rgba(26, 28, 28, 0.06);
}

/* ---- Dark card (5/12) ------------------------------------- */
.dc-card-dark {
    background: var(--primary-container);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 420px;
}

@media (min-width: 768px) {
    .dc-card-dark { grid-column: span 5; }
}

/* ---- Full-width card (12/12) ------------------------------ */
.dc-card-wide {
    background: var(--surface-lowest);
    border-left: 4px solid var(--primary);
    padding: 2.5rem;
    display: grid;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .dc-card-wide {
        grid-column: span 12;
        grid-template-columns: 1fr 1fr;
    }
}

.dc-card-wide:hover {
    box-shadow: 0 20px 40px rgba(26, 28, 28, 0.06);
}

/* ---- Card content ----------------------------------------- */
.dc-card-label {
    font-family: var(--font-label);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--on-surface-variant);
    display: block;
    margin-bottom: 1rem;
}

.dc-card-large h3,
.dc-card-wide h3 {
    font-family: var(--font-headline);
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.05;
    margin-bottom: 1.25rem;
}

.dc-card-dark h3 {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--on-primary);
    line-height: 1.1;
    margin-bottom: 1.25rem;
}

.dc-card-large p,
.dc-card-wide p {
    font-family: var(--font-body);
    color: var(--on-surface-variant);
    font-size: 1rem;
    line-height: 1.65;
    margin-bottom: 2rem;
}

.dc-card-dark p {
    font-family: var(--font-body);
    color: var(--on-primary-container);
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 2rem;
}

.dc-card-link {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary) !important;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-bottom: none !important;
    transition: gap 0.2s ease, color 0.2s ease;
}

.dc-card-link:hover {
    color: var(--secondary) !important;
    gap: 0.65rem;
}

.dc-card-link::after {
    content: '→';
    font-size: 1rem;
    font-family: var(--font-body);
}

.dc-btn-light {
    background: var(--surface);
    color: var(--primary) !important;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    display: inline-block;
    border-bottom: none !important;
    transition: background 0.2s ease, color 0.2s ease;
    align-self: flex-start;
    letter-spacing: 0.02em;
}

.dc-btn-light:hover {
    background: var(--secondary) !important;
    color: white !important;
}

.dc-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--surface-high);
}

.dc-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.5s ease;
    display: block;
}

.dc-card-wide:hover .dc-card-image img {
    filter: grayscale(0%);
}

/* Ghost icon decoration */
.dc-ghost-icon {
    position: absolute;
    right: -0.5rem;
    bottom: -0.5rem;
    font-size: 10rem;
    line-height: 1;
    opacity: 0.04;
    pointer-events: none;
    font-family: var(--font-headline);
    font-weight: 900;
    letter-spacing: -0.1em;
}

/* === RECENT POSTS (Logbook) ================================= */
.dc-recent-posts {
    padding: var(--section-gap) var(--container-pad);
    background-color: var(--surface);
}

.dc-recent-posts-inner {
    max-width: var(--container-max);
    margin: 0 auto;
}

.dc-recent-posts-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 0;
    padding-bottom: 1rem;
}

.dc-view-all {
    margin-top: 4rem;
    text-align: center;
}

.dc-btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-container);
    color: var(--on-primary) !important;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.85rem 3rem;
    border-bottom: none !important;
    letter-spacing: 0.02em;
    transition: background 0.2s ease;
}

.dc-btn-outline:hover {
    background: var(--primary) !important;
    color: white !important;
}

/* === QUARTO LISTING — Logbook Style ======================== */
.quarto-listing-default {
    border-top: 1px solid rgba(196, 199, 199, 0.35);
}

.quarto-listing-default .quarto-post {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 0.5rem 2rem;
    padding: 2.25rem 1rem;
    border-bottom: 1px solid rgba(196, 199, 199, 0.35);
    border-top: none;
    background: transparent;
    margin: 0 -1rem;
    transition: background 0.18s ease;
    position: relative;
}

.quarto-listing-default .quarto-post:hover {
    background: var(--surface-low);
}

.quarto-listing-default .quarto-post:last-child {
    border-bottom: none;
}

/* Thumbnail: hide — editorial listing */
.quarto-listing-default .quarto-post .thumbnail {
    display: none;
}

/* Date / metadata — left column */
.quarto-listing-default .quarto-post .metadata {
    grid-column: 1;
    grid-row: 1;
    padding-top: 0.3rem;
}

.quarto-listing-default .quarto-post .listing-date {
    font-family: var(--font-label);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: block;
    white-space: nowrap;
    line-height: 1.5;
}

.quarto-listing-default .quarto-post .listing-author,
.quarto-listing-default .quarto-post .listing-reading-time {
    display: none;
}

/* Body — right column */
.quarto-listing-default .quarto-post .body {
    grid-column: 2;
    grid-row: 1;
}

.quarto-listing-default .quarto-post .listing-title {
    font-family: var(--font-headline);
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.35rem;
}

.quarto-listing-default .quarto-post .listing-title a,
.quarto-listing-default .quarto-post .listing-title a.title-link {
    color: var(--primary);
    border-bottom: none !important;
    transition: color 0.15s ease;
}

.quarto-listing-default .quarto-post:hover .listing-title a {
    color: var(--secondary);
}

/* Category pills */
.quarto-listing-default .quarto-post .listing-categories {
    margin-top: 0.5rem;
}

.quarto-listing-default .quarto-post .listing-category {
    display: inline-block;
    background: var(--surface-highest);
    padding: 0.15rem 0.55rem;
    font-family: var(--font-label);
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-right: 0.25rem;
    margin-top: 0.2rem;
    border: none;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.quarto-listing-default .quarto-post .listing-category:hover {
    background: var(--secondary);
    color: white;
}

/* Arrow indicator (pseudo-element) */
.quarto-listing-default .quarto-post::after {
    content: '↗';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1rem;
    color: var(--outline-variant);
    transition: color 0.15s ease;
    font-family: var(--font-body);
}

.quarto-listing-default .quarto-post:hover::after {
    color: var(--primary);
}

/* Mobile: stack columns */
@media (max-width: 600px) {
    .quarto-listing-default .quarto-post {
        grid-template-columns: 1fr;
    }

    .quarto-listing-default .quarto-post .metadata {
        grid-column: 1;
        grid-row: 1;
    }

    .quarto-listing-default .quarto-post .body {
        grid-column: 1;
        grid-row: 2;
    }

    .quarto-listing-default .quarto-post::after {
        display: none;
    }
}

/* Hide sort/filter controls on listing pages */
.quarto-listing-filter-group {
    display: none;
}

/* === ARCHIVE PAGE (posts/index.qmd) ======================== */
.dc-archive-page {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 5rem var(--container-pad) 6rem;
}

.dc-archive-hero {
    margin-bottom: 5rem;
    position: relative;
    padding-left: 2rem;
}

@media (min-width: 1024px) {
    .dc-archive-hero {
        padding-left: 3rem;
    }
}

.dc-archive-hero::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 8rem;
    background-color: var(--secondary);
}

.dc-archive-hero h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 900;
    line-height: 0.92;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
    color: var(--primary);
}

.dc-archive-hero p {
    font-family: var(--font-body);
    font-size: 1.15rem;
    color: var(--on-surface-variant);
    max-width: 42rem;
    line-height: 1.65;
}

/* === TITLE BLOCK BANNER (individual posts) ================= */
.title-block-banner {
    background-color: var(--primary) !important;
    padding: 3rem 0 2.5rem;
}

.title-block-banner .quarto-title h1,
.title-block-banner h1.title {
    font-family: var(--font-headline) !important;
    color: white !important;
    font-size: 2.5rem;
    line-height: 1.15;
}

.title-block-banner .quarto-title-meta,
.title-block-banner .quarto-title-meta-contents,
.title-block-banner .quarto-title-meta-contents p {
    color: rgba(255, 255, 255, 0.55) !important;
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.title-block-banner .description,
#title-block-header .description,
.quarto-title-block .description,
p.description {
    display: none !important;
}

.title-block-banner .subtitle {
    color: rgba(255, 255, 255, 0.75) !important;
    font-family: var(--font-body);
}

/* Categories in title block */
.quarto-categories .quarto-category {
    background: transparent !important;
    border: 1px solid rgba(255, 255, 255, 0.6) !important;
    color: white !important;
    font-family: var(--font-label);
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.1rem 0.5rem;
    margin-right: 0.3rem;
    transition: background 0.15s ease, color 0.15s ease;
}

.quarto-categories .quarto-category:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    color: white !important;
}

/* === ARTICLE BODY ========================================== */
article {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.8;
}

article h2 {
    font-family: var(--font-headline);
    font-size: 1.65rem;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
    margin-top: 2.75rem;
    margin-bottom: 1.25rem;
}

article h3 {
    font-family: var(--font-headline);
    font-size: 1.25rem;
    margin-top: 2rem;
}

article blockquote {
    border-left: 4px solid var(--secondary);
    border-top: none;
    border-right: none;
    border-bottom: none;
    padding-left: 1.25rem;
    margin: 2rem 0;
    color: var(--on-surface-variant);
    font-style: italic;
}

article code {
    font-size: 0.85em;
    background: var(--surface-low);
    padding: 0.15em 0.4em;
    color: var(--primary);
}

article pre code {
    background: transparent;
    padding: 0;
}

article pre {
    background: var(--surface-low);
    border-left: 3px solid var(--secondary);
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
}

article hr {
    border: none;
    border-top: 2px solid var(--primary);
    margin: 2.5rem 0;
}

/* === ABOUT PAGE ============================================= */
.quarto-about-solana h1.title {
    font-family: var(--font-headline);
    font-size: 2.5rem;
}

.quarto-about-solana .about-links .about-link {
    border: 2px solid var(--primary);
    border-bottom: 2px solid var(--primary) !important;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    padding: 0.4rem 1rem;
    background: white;
    transition: background 0.15s ease, color 0.15s ease;
}

.quarto-about-solana .about-links .about-link:hover {
    background: var(--primary);
    color: white;
}

/* === FOOTER ================================================= */
.nav-footer {
    background-color: var(--surface-low);
    color: var(--on-surface-variant);
    border-top: 1px solid var(--surface-high);
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 1.5rem;
}

.nav-footer a {
    color: var(--on-surface-variant);
    border-bottom: none !important;
    transition: color 0.15s ease;
}

.nav-footer a:hover {
    color: var(--secondary);
}

/* === SCROLLBAR ============================================== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--outline-variant); }
::-webkit-scrollbar-thumb:hover { background: var(--secondary); }