/* kilmon.ai — shared stylesheet
   Aesthetic: deep indigo-black, editorial, refined. Serif display paired with mono accents. */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..700;1,9..144,300..600&family=Manrope:wght@300;400;500;600;700&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
    /* Palette — deep indigo-black on the blue side */
    --bg: #0a0d16;
    --bg-elev: #10141f;
    --bg-card: #131828;
    --border: #1d2235;
    --border-soft: #161a28;

    --text: #dce3f0;
    --text-dim: #8892a8;
    --text-faint: #5a6378;

    --accent: #6fa8ff;
    --accent-dim: #4a7fd1;
    --accent-glow: rgba(111, 168, 255, 0.12);

    /* Type */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Manrope', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Spacing rhythm */
    --sp-xs: 0.25rem;
    --sp-sm: 0.5rem;
    --sp-md: 1rem;
    --sp-lg: 2rem;
    --sp-xl: 3rem;
    --sp-2xl: 5rem;

    /* Layout */
    --content-width: 680px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse 800px 400px at 50% -200px, rgba(111, 168, 255, 0.04), transparent),
        radial-gradient(ellipse 600px 300px at 100% 100%, rgba(111, 168, 255, 0.02), transparent);
    background-attachment: fixed;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    min-height: 100vh;
    font-weight: 400;
}

/* Subtle grain texture overlay for atmosphere */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.03;
    z-index: 1;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: var(--sp-xl) var(--sp-lg);
    position: relative;
    z-index: 2;
}

/* ── Header ────────────────────────────────────────── */

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding-bottom: var(--sp-2xl);
    border-bottom: 1px solid var(--border-soft);
    margin-bottom: var(--sp-2xl);
}

.site-title {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.site-title:hover {
    color: var(--accent);
}

.site-title::before {
    content: '›';
    color: var(--accent);
    margin-right: 0.4em;
    font-weight: 500;
}

.site-nav {
    display: flex;
    gap: var(--sp-lg);
}

.site-nav a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: color 0.2s ease;
    position: relative;
}

.site-nav a:hover {
    color: var(--accent);
}

.site-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 1px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.site-nav a:hover::after {
    width: 100%;
}

/* ── Section labels ─────────────────────────────────── */

.section-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: var(--sp-md);
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
}

.section-label::before {
    content: '';
    width: 12px;
    height: 1px;
    background-color: var(--text-faint);
}

section {
    margin-bottom: var(--sp-2xl);
    animation: fade-in-up 0.6s ease backwards;
}

section:nth-of-type(1) { animation-delay: 0.1s; }
section:nth-of-type(2) { animation-delay: 0.2s; }
section:nth-of-type(3) { animation-delay: 0.3s; }

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Intro / hero prose ─────────────────────────────── */

.intro {
    font-family: var(--font-display);
    font-size: 1.75rem;
    line-height: 1.35;
    font-weight: 300;
    color: var(--text);
    margin-bottom: var(--sp-2xl);
    max-width: 560px;
    font-variation-settings: 'opsz' 100;
    letter-spacing: -0.01em;
}

.intro em {
    font-style: italic;
    color: var(--accent);
    font-variation-settings: 'opsz' 100;
}

/* ── Blog tile ──────────────────────────────────────── */

.blog-tile {
    display: block;
    padding: var(--sp-lg);
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.blog-tile::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-glow), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.blog-tile:hover {
    border-color: var(--accent-dim);
    transform: translateY(-1px);
}

.blog-tile:hover::before {
    opacity: 1;
}

.blog-tile-meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: var(--sp-sm);
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
}

.blog-tile-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    line-height: 1.3;
    font-weight: 400;
    color: var(--text);
    margin-bottom: var(--sp-sm);
    font-variation-settings: 'opsz' 80;
    letter-spacing: -0.005em;
}

.blog-tile-excerpt {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.6;
}

.blog-tile-empty {
    padding: var(--sp-lg);
    border: 1px dashed var(--border);
    border-radius: 4px;
    color: var(--text-faint);
    font-style: italic;
    text-align: center;
    font-size: 0.9rem;
}

/* ── Note cards ─────────────────────────────────────── */

.notes-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-lg);
}

.note {
    padding: var(--sp-lg) 0;
    border-top: 1px solid var(--border-soft);
}

.note:first-child {
    border-top: none;
    padding-top: 0;
}

.note-meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: var(--sp-sm);
}

.note-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    line-height: 1.35;
    font-weight: 400;
    margin-bottom: var(--sp-md);
    font-variation-settings: 'opsz' 72;
    letter-spacing: -0.005em;
}

.note-title a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.note-title a:hover {
    color: var(--accent);
}

.note-body {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.7;
}

.note-body p + p {
    margin-top: 0.75em;
}

.note-body a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-dim);
    transition: border-color 0.2s ease;
}

.note-body a:hover {
    border-color: var(--accent);
}

.note-body code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background-color: var(--bg-elev);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    color: var(--accent);
}

.note-body pre {
    background-color: var(--bg-elev);
    border: 1px solid var(--border-soft);
    padding: var(--sp-md);
    border-radius: 4px;
    overflow-x: auto;
    margin: var(--sp-md) 0;
}

.note-body pre code {
    background: none;
    padding: 0;
    color: var(--text);
}

.note-body blockquote {
    border-left: 2px solid var(--accent-dim);
    padding-left: var(--sp-md);
    margin: var(--sp-md) 0;
    color: var(--text-dim);
    font-style: italic;
}

.note-body h1, .note-body h2, .note-body h3 {
    font-family: var(--font-display);
    font-weight: 400;
    margin: 1.5em 0 0.5em;
    color: var(--text);
    line-height: 1.3;
}

.note-body h1 { font-size: 1.4rem; }
.note-body h2 { font-size: 1.2rem; }
.note-body h3 { font-size: 1.05rem; }

.note-body ul, .note-body ol {
    margin: var(--sp-md) 0;
    padding-left: 1.5em;
}

.note-body li {
    margin: 0.3em 0;
}

.note-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-sm);
    margin-top: var(--sp-md);
}

.note-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-faint);
    letter-spacing: 0.05em;
}

.note-tag::before {
    content: '#';
    color: var(--accent-dim);
}

/* ── Archive link ───────────────────────────────────── */

.more-link {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    text-decoration: none;
    margin-top: var(--sp-lg);
    transition: gap 0.2s ease;
}

.more-link:hover {
    gap: calc(var(--sp-sm) + 4px);
}

.more-link::after {
    content: '→';
    transition: transform 0.2s ease;
}

/* ── Footer ─────────────────────────────────────────── */

.site-footer {
    margin-top: var(--sp-2xl);
    padding-top: var(--sp-lg);
    border-top: 1px solid var(--border-soft);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-faint);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ── Responsive ─────────────────────────────────────── */

@media (max-width: 640px) {
    .container {
        padding: var(--sp-lg) var(--sp-md);
    }

    .site-header {
        padding-bottom: var(--sp-xl);
        margin-bottom: var(--sp-xl);
    }

    section {
        margin-bottom: var(--sp-xl);
    }

    .intro {
        font-size: 1.35rem;
    }

    .site-nav {
        gap: var(--sp-md);
    }

    .blog-tile-title {
        font-size: 1.25rem;
    }
}