/* =========================================================
   0x55aa — DFIR research notebook
   ========================================================= */

:root {
    --background: #06162d;
    --background-dark: #041124;
    --surface: #08182e;

    --text: #f3f5f7;
    --text-muted: #9aabc2;

    --gold: #ffd23f;
    --gold-dark: #d9a900;
    --green: #0fff50;
    --green-hover: #9dffb3;

    --border: #1a3558;
    --code-bg: #050e1c;

    --content-width: 1140px;

    --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --font-sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    color: var(--text);
    background-color: var(--background);
    background-image: radial-gradient(rgba(158, 178, 210, 0.13) 0.7px, transparent 0.8px);
    background-size: 24px 24px;
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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


/* ---------- Terminal metadata ---------- */

.term {
    display: inline-flex;
    align-items: center;
    gap: 0.55em;
    margin: 0;
    color: var(--green);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.prompt {
    color: var(--green);
    font-weight: 500;
}

a.term:hover,
.share-button:hover {
    color: var(--green-hover);
}


/* ---------- Header ---------- */

.site-header {
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 16px 40px;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 32px;
}

.site-logo {
    display: inline-flex;
    align-items: flex-end;
    line-height: 1;
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.site-logo .cursor {
    display: inline-block;
    width: 0.62em;
    height: 2px;
    margin-left: 0.12em;
    align-self: flex-end;
    background: currentColor;
    pointer-events: none;
    animation: caret-blink 1.06s step-end infinite;
}

@keyframes caret-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .site-logo .cursor {
        animation: none;
        opacity: 1;
    }
}

.site-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 22px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.site-nav a {
    position: relative;
    padding-bottom: 3px;
}

.site-nav a.is-active {
    color: var(--gold);
}

.site-nav a.is-active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: var(--gold);
}


/* ---------- Shared page shell ---------- */

.home,
.article,
.footer-inner {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 40px 40px 72px;
}

.footer-inner {
    padding-top: 28px;
    padding-bottom: 40px;
}


/* ---------- Homepage ---------- */

.home-intro {
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--gold);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.home h1,
.article h1 {
    margin: 0;
    color: var(--text);
    font-family: var(--font-mono);
    font-weight: 600;
    letter-spacing: -0.025em;
}

.home h1 {
    font-size: 40px;
    line-height: 1.1;
}

.home-description {
    max-width: 920px;
    margin: 14px 0 0;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    letter-spacing: 0.02em;
}


/* ---------- Post list ---------- */

.post-preview .term,
.read-more {
    display: flex;
    width: fit-content;
}

.post-preview {
    padding: 22px 0 24px;
    border-bottom: 1px solid var(--border);
}

.post-preview h2 {
    margin: 8px 0 0;
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 600;
    line-height: 1.28;
    letter-spacing: -0.02em;
}

.post-preview h2 a:hover {
    color: var(--gold);
}

.post-summary {
    max-width: 760px;
    margin: 10px 0 0;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.55;
}

.read-more {
    margin-top: 14px;
}

.read-more:hover {
    color: var(--green-hover);
}


/* ---------- Article ---------- */

.article-header {
    margin-bottom: 32px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border);
}

.article-header .term {
    display: flex;
    width: fit-content;
}

.article h1 {
    margin: 10px 0 0;
    font-size: 32px;
    line-height: 1.22;
}

.article-subtitle {
    max-width: 760px;
    margin: 12px 0 0;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.5;
}

.share-button {
    display: inline-flex;
    margin-top: 18px;
    cursor: pointer;
}

.share-button:hover {
    color: var(--green-hover);
}


/* ---------- Article body ---------- */

.article-body {
    max-width: 760px;
    font-size: 17px;
    line-height: 1.7;
}

.article-body h2 {
    margin: 2.1em 0 0.7em;
    color: var(--gold);
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.article-body h3 {
    margin: 1.7em 0 0.55em;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 600;
}

.article-body h4 {
    margin: 1.5em 0 0.45em;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
}

.article-body p {
    margin: 0 0 1.05em;
}

.article-body ul,
.article-body ol {
    margin: 0 0 1.15em;
    padding-left: 1.35em;
}

.article-body li {
    margin-bottom: 0.4em;
}

.article-body li::marker {
    color: var(--gold);
}

.article-body a {
    color: var(--gold);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.article-body img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.6em auto 0;
}

.article-body p:has(> img) {
    margin-bottom: 0.35em;
}

.article-body p:has(> img) + p,
.article-body figcaption {
    margin-top: 0;
    margin-bottom: 1.45em;
    color: var(--green);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    line-height: 1.45;
    letter-spacing: 0.01em;
}

.article-body p:has(> img) + p::before,
.article-body figcaption::before {
    content: "$ ";
}

.article-body figure {
    margin: 1.7em 0 1.45em;
}

.article-body figure img {
    margin: 0 auto;
}

.article-body figcaption {
    margin-top: 0.35em;
    margin-bottom: 0;
}

.article-body hr {
    margin: 2.2em 0;
    border: 0;
    border-top: 1px solid var(--border);
}

.article-body blockquote {
    margin: 1.3em 0;
    padding: 0 0 0 16px;
    border-left: 2px solid var(--gold);
    color: var(--text-muted);
}


/* ---------- Code ---------- */

.article-body code {
    padding: 1px 5px;
    background: var(--surface);
    color: #efe6c4;
    font-family: var(--font-mono);
    font-size: 0.84em;
}

.article-body pre {
    overflow-x: auto;
    margin: 1.4em 0;
    padding: 16px 18px;
    border: 1px solid var(--border);
    background: var(--code-bg);
    color: #e6edf5;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.55;
}

.article-body pre code {
    padding: 0;
    background: none;
    color: inherit;
    font-size: inherit;
}


/* ---------- Tags / empty states ---------- */

.tag-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tag-list li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.tag-count,
.empty-note {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}


/* ---------- Footer ---------- */

.site-footer {
    border-top: 1px solid var(--border);
}

.site-footer p {
    margin: 0;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 12px;
    text-align: center;
}


/* ---------- Mobile ---------- */

@media (max-width: 800px) {
    .header-inner,
    .home,
    .article,
    .footer-inner {
        padding-left: 22px;
        padding-right: 22px;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding-top: 18px;
        padding-bottom: 16px;
    }

    .site-nav {
        gap: 14px 18px;
        justify-content: flex-start;
    }

    .home h1 {
        font-size: 32px;
    }

    .article h1 {
        font-size: 26px;
    }

    .post-preview h2 {
        font-size: 18px;
    }

    .article-body {
        font-size: 16px;
    }
}