/* Praval Field Notes — bio-digital editorial surface */

:root {
    --blog-ocean-1000: #020b0f;
    --blog-ocean-950: #041419;
    --blog-ocean-900: #071b21;
    --blog-ocean-850: #0a242b;
    --blog-ocean-800: #0d3038;
    --blog-coral: #ff7a64;
    --blog-coral-bright: #ff967f;
    --blog-cyan: #72ead4;
    --blog-cyan-soft: rgba(114, 234, 212, 0.1);
    --blog-text: #edf8f5;
    --blog-text-soft: #c9dfda;
    --blog-muted: #78958f;
    --blog-muted-strong: #9cb5b0;
    --blog-line: rgba(151, 207, 198, 0.14);
    --blog-line-strong: rgba(151, 207, 198, 0.25);
    --blog-display: "Sora", sans-serif;
    --blog-mono: "IBM Plex Mono", monospace;
}

html {
    background: var(--blog-ocean-1000);
}

body.blog-page {
    min-width: 320px;
    overflow-x: clip;
    background:
        radial-gradient(circle at 82% 4%, rgba(114, 234, 212, 0.055), transparent 28rem),
        linear-gradient(180deg, var(--blog-ocean-950), var(--blog-ocean-1000) 74%);
    color: var(--blog-text);
    font-family: var(--blog-display);
    line-height: 1.6;
}

.blog-page .container {
    width: min(calc(100% - 48px), 1240px);
    max-width: none;
    margin-inline: auto;
    padding: 0;
}

.blog-skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 9999;
    padding: 0.7rem 1rem;
    transform: translateY(-160%);
    border-radius: 8px;
    background: var(--blog-cyan);
    color: var(--blog-ocean-1000);
    font-weight: 700;
    text-decoration: none;
    transition: transform 180ms ease;
}

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

.blog-atmosphere {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blog-grid {
    position: absolute;
    inset: 0;
    opacity: 0.7;
    background-image:
        linear-gradient(rgba(143, 215, 204, 0.028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(143, 215, 204, 0.028) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.blog-glow {
    position: absolute;
    width: 42rem;
    aspect-ratio: 1;
    border-radius: 50%;
    opacity: 0.08;
    filter: blur(115px);
}

.blog-glow-coral {
    top: 18rem;
    right: -29rem;
    background: var(--blog-coral);
}

.blog-glow-cyan {
    top: 72rem;
    left: -30rem;
    background: var(--blog-cyan);
}

/* Navigation */
.blog-page .blog-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--blog-line);
    background: rgba(2, 13, 17, 0.84);
    backdrop-filter: blur(20px) saturate(125%);
}

.blog-page .nav-content {
    min-height: 76px;
    padding: 0;
}

.blog-page .nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.72rem;
    color: var(--blog-text);
    text-decoration: none;
}

.blog-brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    overflow: hidden;
    border: 1px solid var(--blog-line-strong);
    border-radius: 9px;
    background: rgba(237, 248, 245, 0.92);
}

.blog-page .nav-logo {
    width: 38px;
    height: 38px;
    object-fit: contain;
}

.blog-page .nav-title {
    color: var(--blog-text);
    font-family: var(--blog-display);
    font-size: 1rem;
    font-weight: 650;
    letter-spacing: -0.035em;
}

.blog-page .nav-links {
    gap: clamp(1.2rem, 2.6vw, 2rem);
}

.blog-page .nav-links a {
    color: var(--blog-muted-strong);
    font-size: 0.78rem;
    font-weight: 500;
}

.blog-page .nav-links a::after {
    display: none;
}

.blog-page .nav-links a:hover,
.blog-page .nav-links a.active {
    color: var(--blog-text);
}

.blog-page .nav-links a.active::before {
    display: inline-block;
    width: 4px;
    height: 4px;
    margin: 0 0.48rem 0.1rem 0;
    border-radius: 50%;
    background: var(--blog-coral);
    box-shadow: 0 0 10px var(--blog-coral);
    content: "";
    vertical-align: middle;
}

.blog-page .nav-links .blog-github {
    padding: 0.66rem 0.9rem;
    border: 1px solid var(--blog-line-strong);
    border-radius: 8px;
    color: var(--blog-text);
}

.blog-page .nav-links .blog-github:hover {
    border-color: rgba(255, 122, 100, 0.44);
    background: rgba(255, 122, 100, 0.08);
}

/* Masthead */
.blog-masthead {
    border-bottom: 1px solid var(--blog-line);
}

.blog-masthead-inner {
    display: grid;
    min-height: 330px;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    align-items: end;
    gap: 6rem;
    padding-block: 6.5rem 4.2rem;
}

.blog-eyebrow,
.article-kicker {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin: 0 0 1.35rem;
    color: var(--blog-muted);
    font-family: var(--blog-mono);
    font-size: 0.64rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.blog-eyebrow span {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--blog-cyan);
    box-shadow: 0 0 12px var(--blog-cyan);
}

.blog-masthead-title {
    max-width: 810px;
    margin: 0;
    color: var(--blog-text);
    font-size: clamp(2.6rem, 5.3vw, 5.4rem);
    font-weight: 600;
    letter-spacing: -0.065em;
    line-height: 0.99;
}

.blog-masthead-title::after {
    color: var(--blog-coral);
    content: "_";
}

.blog-masthead-copy {
    max-width: 440px;
    margin: 0 0 0.45rem;
    padding-left: 1.25rem;
    border-left: 1px solid rgba(255, 122, 100, 0.48);
    color: var(--blog-muted-strong);
    font-size: 0.94rem;
    line-height: 1.8;
}

/* Archive ribbon */
.blog-page .historical-posts-container {
    position: sticky;
    top: 76px;
    z-index: 90;
    padding: 1.15rem 0 1.3rem;
    border-bottom: 1px solid var(--blog-line);
    background: rgba(4, 20, 25, 0.91);
    backdrop-filter: blur(24px) saturate(120%);
}

.archive-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 48px 0.72rem;
    color: var(--blog-muted);
    font-family: var(--blog-mono);
    font-size: 0.58rem;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.archive-label small {
    color: var(--blog-coral-bright);
    font: inherit;
}

.blog-page .historical-posts-bar {
    gap: 0.65rem;
}

.blog-page .historical-posts-scroll {
    gap: 0.7rem;
    padding: 0;
    scrollbar-color: var(--blog-coral) transparent;
}

.blog-page .historical-posts-scroll::-webkit-scrollbar {
    height: 3px;
}

.blog-page .historical-posts-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.blog-page .historical-posts-scroll::-webkit-scrollbar-thumb {
    background: var(--blog-coral);
}

.blog-page .scroll-arrow {
    width: 40px;
    height: 40px;
    border-color: var(--blog-line-strong);
    background: rgba(13, 48, 56, 0.72);
    color: var(--blog-muted-strong);
}

.blog-page .scroll-arrow:hover {
    border-color: rgba(114, 234, 212, 0.42);
    background: var(--blog-cyan-soft);
    color: var(--blog-cyan);
}

.blog-page .post-card {
    position: relative;
    flex: 0 0 315px;
    min-height: 140px;
    gap: 0.5rem;
    padding: 1rem 1.1rem;
    overflow: hidden;
    border-color: var(--blog-line);
    border-radius: 10px;
    background: rgba(7, 27, 33, 0.66);
    box-shadow: none;
    transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.blog-page .post-card::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: 2px;
    background: var(--blog-coral);
    opacity: 0;
    content: "";
    transition: opacity 180ms ease;
}

.blog-page .post-card:hover,
.blog-page .post-card.active {
    transform: translateY(-2px);
    border-color: rgba(114, 234, 212, 0.3);
    background: rgba(10, 36, 43, 0.88);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}

.blog-page .post-card.active::before {
    opacity: 1;
}

.blog-page .post-card-date {
    color: var(--blog-coral-bright);
    font-family: var(--blog-mono);
    font-size: 0.58rem;
    font-weight: 500;
    letter-spacing: 0.08em;
}

.blog-page .post-card-title {
    color: var(--blog-text);
    font-size: 0.91rem;
    font-weight: 560;
    letter-spacing: -0.018em;
    line-height: 1.45;
}

.blog-page .post-card-excerpt {
    color: var(--blog-muted);
    font-size: 0.7rem;
    line-height: 1.55;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}

/* Article */
.blog-page .blog-post {
    position: relative;
    padding: clamp(5rem, 9vw, 9rem) 0 8rem;
    background: transparent;
}

.blog-page .blog-post::before {
    position: absolute;
    top: 0;
    left: calc(50% - 430px);
    width: 1px;
    height: 4.5rem;
    background: linear-gradient(var(--blog-coral), transparent);
    content: "";
}

.blog-page .blog-header {
    max-width: 940px;
    margin: 0 auto clamp(4rem, 7vw, 6rem);
    text-align: left;
}

.article-kicker span {
    display: inline-grid;
    min-width: 35px;
    height: 24px;
    place-items: center;
    border: 1px solid rgba(255, 122, 100, 0.32);
    border-radius: 5px;
    background: rgba(255, 122, 100, 0.07);
    color: var(--blog-coral-bright);
}

.blog-page .blog-title {
    max-width: 930px;
    margin: 0;
    color: var(--blog-text);
    font-size: clamp(2.65rem, 5.1vw, 5.15rem);
    font-weight: 590;
    letter-spacing: -0.06em;
    line-height: 1.04;
    text-wrap: balance;
}

.blog-page .blog-meta {
    margin: 2rem 0 0;
    color: var(--blog-muted);
    font-family: var(--blog-mono);
    font-size: 0.68rem;
    letter-spacing: 0.025em;
}

.blog-page .blog-author {
    color: var(--blog-cyan);
    font-weight: 500;
}

.blog-page .blog-date,
.blog-reading-time {
    color: var(--blog-muted);
}

.blog-page .blog-meta-separator {
    margin-inline: 0.65rem;
    color: rgba(156, 181, 176, 0.35);
}

.blog-page .blog-content {
    max-width: 790px;
    margin: 0 auto;
    color: var(--blog-text-soft);
    font-family: var(--blog-display);
    font-size: clamp(1rem, 1.25vw, 1.09rem);
    line-height: 1.9;
}

.blog-page .blog-content > p:first-child {
    color: var(--blog-text);
    font-size: clamp(1.18rem, 1.7vw, 1.38rem);
    line-height: 1.75;
}

.blog-page .blog-content p {
    margin: 0 0 1.65rem;
}

.blog-page .blog-content h2 {
    margin: 5rem 0 1.5rem;
    padding: 0 0 1rem;
    border-bottom: 1px solid var(--blog-line);
    color: var(--blog-text);
    font-size: clamp(1.65rem, 2.8vw, 2.35rem);
    font-weight: 570;
    letter-spacing: -0.045em;
    line-height: 1.2;
}

.blog-page .blog-content h2::before {
    display: inline-block;
    width: 18px;
    height: 1px;
    margin: 0 0.75rem 0.22em 0;
    background: var(--blog-coral);
    content: "";
}

.blog-page .blog-content h3 {
    margin: 3rem 0 1.1rem;
    color: var(--blog-text);
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.blog-page .blog-content h4 {
    margin: 2.3rem 0 0.8rem;
    color: var(--blog-cyan);
    font-family: var(--blog-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.blog-page .blog-content a {
    color: var(--blog-cyan);
    text-decoration-color: rgba(114, 234, 212, 0.35);
    text-underline-offset: 0.2em;
}

.blog-page .blog-content a:hover {
    color: var(--blog-text);
    text-decoration-color: var(--blog-coral);
}

.blog-page .blog-content strong {
    color: var(--blog-text);
    font-weight: 600;
}

.blog-page .blog-content ul,
.blog-page .blog-content ol {
    margin: 0 0 2rem;
    padding-left: 1.45rem;
}

.blog-page .blog-content li {
    margin: 0.62rem 0;
    padding-left: 0.35rem;
    color: var(--blog-text-soft);
}

.blog-page .blog-content li::marker {
    color: var(--blog-coral);
}

.blog-page .blog-content blockquote {
    margin: 2.6rem 0;
    padding: 1.45rem 1.6rem;
    border-left: 2px solid var(--blog-coral);
    border-radius: 0 10px 10px 0;
    background: linear-gradient(90deg, rgba(255, 122, 100, 0.08), transparent);
    color: var(--blog-text);
    font-size: 1.06rem;
}

.blog-page .blog-content blockquote p:last-child {
    margin-bottom: 0;
}

.blog-page .blog-content pre {
    position: relative;
    margin: 2.25rem -2rem;
    padding: 2rem;
    border: 1px solid var(--blog-line-strong);
    border-radius: 14px;
    background: rgba(2, 12, 16, 0.94) !important;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28), inset 3px 0 var(--blog-coral);
}

.blog-page .blog-content pre::before {
    display: block;
    margin-bottom: 1.1rem;
    color: var(--blog-muted);
    font-family: var(--blog-mono);
    font-size: 0.58rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    content: "praval / source";
}

.blog-page .blog-content pre code {
    border: 0;
    background: transparent !important;
    color: #d7e9e5;
    font-family: var(--blog-mono);
    font-size: 0.78rem;
    line-height: 1.75;
    text-shadow: none;
}

.blog-page .blog-content :not(pre) > code {
    padding: 0.15rem 0.4rem;
    border: 1px solid var(--blog-line);
    border-radius: 5px;
    background: rgba(13, 48, 56, 0.66);
    color: var(--blog-coral-bright);
    font-family: var(--blog-mono);
    font-size: 0.84em;
}

.blog-page .blog-content table {
    width: 100%;
    margin: 2.5rem 0;
    border-collapse: collapse;
    overflow: hidden;
    border: 1px solid var(--blog-line);
    border-radius: 12px;
    background: rgba(7, 27, 33, 0.58);
    font-size: 0.86rem;
}

.blog-page .blog-content th,
.blog-page .blog-content td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--blog-line);
    text-align: left;
}

.blog-page .blog-content th {
    color: var(--blog-cyan);
    font-family: var(--blog-mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
}

.blog-page .blog-content img {
    width: calc(100% + 6rem);
    max-width: none;
    height: auto;
    margin: 2.8rem -3rem;
    border: 1px solid var(--blog-line-strong);
    border-radius: 14px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

.blog-page .mermaid {
    margin: 2.8rem -3rem;
    padding: 2rem;
    overflow-x: auto;
    border: 1px solid var(--blog-line-strong);
    border-radius: 14px;
    background: rgba(3, 16, 20, 0.9);
}

.blog-page .blog-content hr {
    height: 1px;
    margin: 4rem 0;
    border: 0;
    background: linear-gradient(90deg, transparent, var(--blog-line-strong), transparent);
}

/* Footer */
.blog-footer {
    border-top: 1px solid var(--blog-line);
    background: rgba(2, 11, 15, 0.76);
}

.blog-footer-main {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 3rem;
    padding-block: 4rem 3rem !important;
}

.blog-footer-main > div:first-child > p {
    margin: 1rem 0 0;
    color: var(--blog-muted);
    font-family: var(--blog-mono);
    font-size: 0.67rem;
}

.blog-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem;
}

.blog-footer-links a {
    color: var(--blog-muted-strong);
    font-size: 0.74rem;
    text-decoration: none;
}

.blog-footer-links a:hover {
    color: var(--blog-cyan);
}

.blog-footer-bottom {
    display: flex;
    min-height: 70px;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    border-top: 1px solid var(--blog-line);
    color: var(--blog-muted);
    font-family: var(--blog-mono);
    font-size: 0.59rem;
}

.blog-footer-status {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
}

.blog-footer-status i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--blog-cyan);
    box-shadow: 0 0 10px var(--blog-cyan);
}

@media (max-width: 900px) {
    .blog-page .nav-toggle {
        display: flex;
        width: 42px;
        height: 42px;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        border: 1px solid var(--blog-line-strong);
        border-radius: 8px;
        background: rgba(13, 48, 56, 0.54);
    }

    .blog-page .nav-toggle span {
        width: 17px;
        height: 1px;
        margin: 0 auto;
        background: var(--blog-text);
    }

    .blog-page .nav-links {
        position: absolute;
        top: calc(100% + 1px);
        right: 24px;
        left: 24px;
        display: grid;
        gap: 0;
        padding: 0.6rem;
        transform: translateY(-8px);
        border: 1px solid var(--blog-line-strong);
        border-radius: 11px;
        background: rgba(4, 20, 25, 0.98);
        box-shadow: 0 22px 60px rgba(0, 0, 0, 0.36);
        opacity: 0;
        pointer-events: none;
        transition: opacity 180ms ease, transform 180ms ease;
    }

    .blog-page .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .blog-page .nav-links li,
    .blog-page .nav-links a {
        width: 100%;
    }

    .blog-page .nav-links a {
        display: block;
        padding: 0.8rem 0.9rem;
        border-radius: 7px;
    }

    .blog-page .nav-links .blog-github {
        border: 0;
    }

    .blog-masthead-inner {
        min-height: 0;
        grid-template-columns: 1fr;
        gap: 2.4rem;
        padding-block: 5rem 3.6rem;
    }

    .blog-masthead-copy {
        max-width: 620px;
    }

    .blog-page .historical-posts-container {
        position: relative;
        top: auto;
    }
}

@media (max-width: 720px) {
    .blog-page .container {
        width: min(calc(100% - 28px), 1240px);
    }

    .blog-page .nav-content {
        min-height: 66px;
    }

    .blog-masthead-inner {
        padding-block: 4.1rem 3rem;
    }

    .blog-masthead-title {
        font-size: clamp(2.35rem, 12vw, 4rem);
    }

    .archive-label {
        margin-inline: 0;
    }

    .blog-page .post-card {
        flex-basis: min(82vw, 300px);
    }

    .blog-page .blog-post {
        padding-block: 4.5rem 6rem;
    }

    .blog-page .blog-post::before {
        left: 14px;
        height: 2.5rem;
    }

    .blog-page .blog-header {
        margin-bottom: 3.4rem;
    }

    .blog-page .blog-title {
        font-size: clamp(2.25rem, 11vw, 3.5rem);
    }

    .blog-page .blog-content pre,
    .blog-page .mermaid {
        margin-inline: 0;
        padding: 1.25rem;
        border-radius: 10px;
    }

    .blog-page .blog-content img {
        width: 100%;
        margin-inline: 0;
    }

    .blog-page .blog-content table {
        display: block;
        overflow-x: auto;
    }

    .blog-footer-main {
        align-items: flex-start;
        flex-direction: column;
    }

    .blog-footer-bottom {
        min-height: 90px;
        align-items: flex-start;
        justify-content: center;
        flex-direction: column;
        gap: 0.55rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .blog-page *,
    .blog-page *::before,
    .blog-page *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.001ms !important;
    }
}