/* Archaios Blog - Public Styles
   Dark theme + teal accent + premium typography */

:root {
    --c-bg: #0a0d14;
    --c-bg-2: #131822;
    --c-bg-3: #1a2030;
    --c-border: #242b3d;
    --c-text: #e8edf3;
    --c-text-dim: #aab3c5;
    --c-text-soft: #9099ab;
    --c-accent: #00F5D4;
    --c-accent-dim: rgba(0,245,212,.15);
    --c-accent-glow: rgba(0,245,212,.35);
    --c-danger: #ff6b6b;

    --radius: 12px;
    --radius-sm: 6px;
    --radius-lg: 18px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,.25);
    --shadow-md: 0 8px 24px rgba(0,0,0,.35);
    --shadow-teal: 0 8px 40px rgba(0,245,212,.12);

    --container: 1200px;
    --container-narrow: 760px;

    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Fraunces', 'Georgia', serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-accent); text-decoration: none; transition: color .2s; }
a:hover { color: #fff; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: var(--container-narrow); }

.skip-link {
    position: absolute; top: -40px; left: 0;
    background: var(--c-accent); color: var(--c-bg); padding: 8px 16px;
    z-index: 1000; font-weight: 600;
}
.skip-link:focus { top: 0; }

/* ======== HEADER ======== */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10,13,20,.85);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--c-border);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 24px;
}
.brand {
    display: flex; align-items: center; gap: 10px;
    font-weight: 800; font-size: 1.15rem; letter-spacing: -.01em;
    color: var(--c-text) !important;
}
.brand:hover { color: var(--c-accent) !important; }
.brand-logo { height: 32px; width: auto; }
.brand-name { display: inline-flex; }
.brand-dot { color: var(--c-accent); }
.site-nav { display: flex; gap: 28px; }
.site-nav a {
    color: var(--c-text-dim); font-weight: 500; font-size: .95rem;
}
.site-nav a:hover { color: var(--c-accent); }

/* ======== HERO ======== */
.hero {
    padding: 80px 0 60px;
    background: radial-gradient(ellipse at top, rgba(0,245,212,.05) 0%, transparent 70%);
    border-bottom: 1px solid var(--c-border);
}
.hero-eyebrow {
    font-size: .75rem; font-weight: 700; letter-spacing: .18em;
    text-transform: uppercase; color: var(--c-accent); margin: 0 0 14px;
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5.5vw, 4.5rem);
    font-weight: 600; line-height: 1.05; letter-spacing: -.02em;
    margin: 0 0 18px; color: var(--c-text);
}
.hero-accent {
    background: linear-gradient(135deg, var(--c-accent) 0%, #4de0d4 50%, #3a7bd5 100%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    font-style: italic;
}
.hero-lead {
    font-size: 1.15rem; max-width: 700px; color: var(--c-text-dim); margin: 0 0 28px;
}
.hero-meta {
    display: flex; align-items: center; gap: 12px;
    color: var(--c-text-soft); font-size: .9rem;
}
.hero-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    border: 2px solid var(--c-accent); object-fit: cover;
}

/* ======== FILTER BAR ======== */
.filter-bar {
    background: var(--c-bg-2);
    border-bottom: 1px solid var(--c-border);
    padding: 18px 0;
}
.filter-bar .container {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.filter-bar p { margin: 0; color: var(--c-text-dim); }
.filter-bar strong { color: var(--c-text); }
.filter-clear {
    font-size: .85rem; color: var(--c-text-dim);
    padding: 6px 14px; border: 1px solid var(--c-border); border-radius: 50px;
}

/* ======== POSTS GRID ======== */
.posts { padding: 60px 0 80px; }
.posts-grid {
    display: grid; gap: 28px;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}
.post-card {
    background: var(--c-bg-2);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform .3s cubic-bezier(.2,.8,.2,1), border-color .3s, box-shadow .3s;
}
.post-card:hover {
    transform: translateY(-4px);
    border-color: var(--c-accent);
    box-shadow: var(--shadow-teal);
}
.post-card-link {
    display: flex; flex-direction: column; height: 100%;
    color: inherit !important; text-decoration: none;
}
.post-card-image {
    aspect-ratio: 16 / 9; overflow: hidden;
    background: linear-gradient(135deg, var(--c-bg-3), var(--c-bg-2));
}
.post-card-image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .6s cubic-bezier(.2,.8,.2,1);
}
.post-card:hover .post-card-image img { transform: scale(1.05); }
.post-card-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.post-card-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.tag {
    font-size: .78rem; letter-spacing: .02em; font-weight: 600;
    color: var(--c-accent); background: var(--c-accent-dim);
    padding: 6px 14px; border-radius: 50px;
    text-decoration: none;
    display: inline-flex; align-items: center;
    min-height: 28px; line-height: 1;
}
a.tag:hover { background: var(--c-accent); color: var(--c-bg); }
.post-card-title {
    font-family: var(--font-display);
    font-size: 1.35rem; font-weight: 600;
    line-height: 1.25; letter-spacing: -.01em;
    color: var(--c-text); margin: 0 0 10px;
}
.post-card-excerpt {
    color: var(--c-text-dim); font-size: .95rem; line-height: 1.55;
    margin: 0 0 16px; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
    overflow: hidden;
}
.post-card-meta {
    display: flex; gap: 8px; font-size: .82rem; color: var(--c-text-soft);
    margin-top: auto; padding-top: 12px; border-top: 1px solid var(--c-border);
}

/* ======== PAGINATION ======== */
.pagination {
    display: flex; justify-content: center; align-items: center; gap: 20px;
    margin-top: 60px;
}
.pagination a {
    padding: 10px 20px; border: 1px solid var(--c-border);
    border-radius: 50px; color: var(--c-text); font-weight: 500;
}
.pagination a:hover { border-color: var(--c-accent); color: var(--c-accent); }
.pagination-info { color: var(--c-text-dim); font-size: .9rem; }

/* ======== EMPTY STATE ======== */
.empty { text-align: center; padding: 80px 20px; color: var(--c-text-dim); }
.empty h2 { color: var(--c-text); margin: 0 0 10px; font-family: var(--font-display); }

/* ======== ARTICLE (POST DETAIL) ======== */
.reading-progress {
    position: fixed; top: 0; left: 0; height: 3px; width: 100%;
    background: linear-gradient(90deg, var(--c-accent), #3a7bd5);
    z-index: 100;
    transform: scaleX(0); transform-origin: 0 0;
    will-change: transform;
    transition: transform .1s linear;
}
.post-article { padding: 48px 0 80px; }
.breadcrumb { font-size: .82rem; color: var(--c-text-soft); margin-bottom: 24px; }
.breadcrumb a { color: var(--c-text-dim); text-decoration: underline; text-decoration-color: rgba(0,245,212,.45); text-underline-offset: 3px; }
.breadcrumb a:hover { color: var(--c-accent); text-decoration-color: var(--c-accent); }

.post-header { margin-bottom: 40px; }
.post-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.post-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.8vw, 3.5rem);
    font-weight: 600; line-height: 1.1; letter-spacing: -.02em;
    margin: 0 0 22px; color: var(--c-text);
}
.post-lead {
    font-size: 1.25rem; color: var(--c-text-dim); line-height: 1.55;
    margin: 0 0 28px; font-weight: 400;
}
.post-meta { display: flex; align-items: center; gap: 14px; padding: 18px 0; border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
.post-avatar { width: 48px; height: 48px; border-radius: 50%; border: 2px solid var(--c-accent); object-fit: cover; }
.post-meta-text { display: flex; flex-direction: column; }
.post-author { font-weight: 600; color: var(--c-text); }
.post-date { font-size: .85rem; color: var(--c-text-soft); }

.post-feature {
    margin: 40px 0; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--c-border);
}
.post-feature img { width: 100%; display: block; }

/* Article content typography */
.post-content {
    font-size: 1.1rem; line-height: 1.8; color: #d5dbe6;
}
.post-content > * + * { margin-top: 1.3em; }
.post-content p { margin: 0 0 1.3em; }
.post-content h2 {
    font-family: var(--font-display);
    font-size: 1.9rem; font-weight: 600; line-height: 1.2;
    margin: 2.2em 0 .6em; color: var(--c-text);
    letter-spacing: -.01em;
}
.post-content h3 {
    font-family: var(--font-display);
    font-size: 1.45rem; font-weight: 600; line-height: 1.25;
    margin: 1.8em 0 .5em; color: var(--c-text);
}
.post-content h4 { font-size: 1.15rem; font-weight: 700; margin: 1.5em 0 .4em; color: var(--c-text); }
.post-content a { color: var(--c-accent); text-decoration: underline; text-decoration-color: var(--c-accent-dim); text-underline-offset: 3px; }
.post-content a:hover { text-decoration-color: var(--c-accent); color: #fff; }
.post-content strong { color: var(--c-text); font-weight: 700; }
.post-content em { color: var(--c-text); }
.post-content ul, .post-content ol { padding-left: 1.6em; margin: 1.3em 0; }
.post-content li { margin-bottom: .4em; }
.post-content blockquote {
    margin: 1.8em 0; padding: 1.2em 1.6em;
    border-left: 3px solid var(--c-accent);
    background: var(--c-bg-2);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--c-text); font-style: italic;
}
.post-content code {
    background: var(--c-bg-3); color: var(--c-accent);
    padding: .15em .45em; border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: .92em;
}
.post-content pre {
    background: var(--c-bg-3);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 20px 24px; overflow-x: auto;
    margin: 1.8em 0;
}
.post-content pre code { background: transparent; color: var(--c-text); padding: 0; }
.post-content img {
    border-radius: var(--radius-lg); margin: 1.8em auto;
    border: 1px solid var(--c-border);
}
.post-content hr { border: 0; border-top: 1px solid var(--c-border); margin: 2.5em 0; }
.post-content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; }
.post-content th, .post-content td { padding: 10px 14px; border: 1px solid var(--c-border); text-align: left; }
.post-content th { background: var(--c-bg-2); font-weight: 700; }

/* Share */
.post-share { margin: 40px 0; padding: 20px 0; border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.share-label { color: var(--c-text-dim); font-size: .9rem; margin: 0 8px 0 0; font-weight: 600; }
.share-btn { font-size: .85rem; padding: 7px 14px; border-radius: 50px; background: var(--c-bg-2); border: 1px solid var(--c-border); color: var(--c-text) !important; }
.share-btn:hover { border-color: var(--c-accent); color: var(--c-accent) !important; }

/* Author box */
.author-box {
    display: flex; gap: 20px; align-items: flex-start;
    background: var(--c-bg-2); border: 1px solid var(--c-border);
    border-radius: var(--radius-lg); padding: 24px 28px; margin-top: 30px;
}
.author-avatar {
    width: 72px; height: 72px; border-radius: 50%;
    border: 2px solid var(--c-accent); object-fit: cover; flex-shrink: 0;
}
.author-name { margin: 0 0 6px; font-family: var(--font-display); font-size: 1.3rem; color: var(--c-text); }
.author-bio { margin: 0 0 10px; color: var(--c-text-dim); font-size: .95rem; line-height: 1.55; }
.author-link { font-size: .9rem; font-weight: 600; }

/* Related */
.related { padding: 60px 0 80px; background: var(--c-bg-2); border-top: 1px solid var(--c-border); }
.related-title {
    font-family: var(--font-display); font-size: 2rem;
    margin: 0 0 32px; color: var(--c-text);
}

/* Static pages */
.static-page { padding: 60px 0 80px; }
.static-page h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem); font-weight: 600;
    margin: 0 0 20px; letter-spacing: -.02em;
}
.static-page .lead { font-size: 1.2rem; color: var(--c-text-dim); margin: 0 0 32px; }
.static-page h2 {
    font-family: var(--font-display); font-size: 1.6rem;
    margin: 36px 0 12px; color: var(--c-text);
}
.static-page p, .static-page li { font-size: 1.05rem; line-height: 1.8; color: #d5dbe6; }
.static-page ul { padding-left: 1.5em; }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 32px; }
.contact-card { background: var(--c-bg-2); border: 1px solid var(--c-border); padding: 24px; border-radius: var(--radius-lg); }
.contact-card h2 { margin: 0 0 8px; font-size: 1.1rem; font-family: var(--font-body); font-weight: 700; color: var(--c-accent); }

/* ======== FOOTER ======== */
.site-footer {
    background: var(--c-bg-2); border-top: 1px solid var(--c-border);
    padding: 48px 0 40px; margin-top: 40px;
}
.footer-inner { text-align: center; }
.footer-brand { margin-bottom: 22px; }
.footer-logo { height: 40px; width: auto; margin: 0 auto 12px; }
.footer-tagline { margin: 0; color: var(--c-text-dim); font-size: .9rem; max-width: 520px; margin: 0 auto; }
.footer-nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin: 22px 0; }
.footer-nav a { color: var(--c-text-dim); font-size: .9rem; }
.footer-nav a:hover { color: var(--c-accent); }
.footer-legal { font-size: .82rem; color: #c4ccde; margin: 14px 0 0; }
.footer-legal a { color: #c4ccde; text-decoration: underline; text-decoration-color: rgba(0,245,212,.4); }
.footer-legal a:hover { color: var(--c-accent); }
.footer-legal strong { color: #e8edf3; }

/* Mobile */
@media (max-width: 640px) {
    .site-nav { gap: 16px; }
    .site-nav a { font-size: .88rem; }
    .brand-name { display: none; }
    .hero { padding: 50px 0 40px; }
    .posts { padding: 40px 0 60px; }
    .posts-grid { gap: 20px; }
    .post-article { padding: 28px 0 60px; }
    .post-content { font-size: 1.02rem; line-height: 1.75; }
    .author-box { flex-direction: column; text-align: center; align-items: center; }
}