/* ============================================
     GRUNGE BAUHAUS — Blog Theme v2
     Flexbox-first fluid layout
     ============================================ */

:root {
    /* Surface — cool concrete */
    --bg: #e4e7eb; /* cool grey paper */
    --bg-dark: #141619; /* blue-black */
    --bg-card: #d8dce1; /* slightly darker cool grey */
    --bg-code: #cdd2d8;
    /* Text — cool slate */
    --ink: #141619; /* near black, blue tint */
    --ink-mid: #3d4550; /* slate */
    --ink-light: #727d8a; /* cool medium grey */
    --ink-on-dark: #e4e7eb;
    /* Accent — neon orange */
    --accent: #ff6b1a; /* neon orange */
    --accent-light: #ff8c4a;
    --ochre: #c49a2a;
    --steel: #5a6872;
    --sp-xs: 0.25rem;
    --sp-s: 0.5rem;
    --sp-m: 1rem;
    --sp-l: 1.5rem;
    --sp-xl: 2.5rem;
    --sp-2xl: 4rem;
    --sp-3xl: 6rem;
    --gutter: clamp(1.25rem, 3vw, 3rem);
}

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

/* ---- NOISE ---- */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.06;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* ---- BASE ---- */
html {
    font-size: 17px;
    scroll-behavior: smooth;
}

body {
    font-family: "Work Sans", sans-serif;
    font-weight: 400;
    line-height: 1.7;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---- TYPOGRAPHY ---- */
h1,
h2,
h3,
h4 {
    font-family: "Rangile", serif;
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
h1 {
    font-size: clamp(2.4rem, 5vw, 4.5rem);
}
h2 {
    font-size: clamp(1.4rem, 2.5vw, 2rem);
}

p {
    font-size: 1rem;
    line-height: 1.75;
}

a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1.5px solid transparent;
    transition: border-color 0.2s ease;
}
a:hover {
    border-bottom-color: var(--accent);
}

code,
.mono {
    font-family: "Inconsolata", monospace;
    font-size: 0.9em;
}

/* ---- RULES ---- */
.rule {
    border: none;
    height: 3px;
    background: var(--ink);
}
.rule--thin {
    border: none;
    height: 1px;
    background: var(--ink-light);
}
.rule--accent {
    border: none;
    height: 4px;
    background: var(--accent);
}

/* ============================================
     HEADER — full bleed
     ============================================ */
.site-header {
    padding: var(--sp-l) var(--gutter) var(--sp-m);
}
.site-header .rule {
    margin-bottom: var(--sp-m);
}

.site-header__inner {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: var(--sp-m);
}

.site-logo {
    font-family: "Rangile", serif;
    font-size: 1.3rem;
    letter-spacing: 0.15em;
    color: var(--ink);
    text-decoration: none;
    border-bottom: none;
    position: relative;
}
.site-logo::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
}

.site-nav {
    display: flex;
    gap: var(--sp-l);
    list-style: none;
}
.site-nav a {
    font-family: "Inconsolata", monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-mid);
    border-bottom: none;
    transition: color 0.2s ease;
}
.site-nav a:hover {
    color: var(--accent);
}

/* ============================================
     MAIN LAYOUT — flexbox split
     On wide screens: article left, archive sidebar right
     On narrow: stacked
     ============================================ */
.page-body {
    display: flex;
    flex: 1;
    gap: 0;
}

/* Article column — takes available space */
.article-col {
    flex: 1 1 0;
    min-width: 0;
    padding: var(--sp-2xl) var(--gutter) var(--sp-3xl);
    border-right: 1px solid var(--ink-light);
}

/* Sidebar / archive column */
.archive-col {
    flex: 0 0 clamp(280px, 30vw, 420px);
    padding: var(--sp-2xl) var(--gutter) var(--sp-3xl);
    position: sticky;
    top: 0;
    align-self: flex-start;
    max-height: 100vh;
    overflow-y: auto;
}

/* ============================================
     FEATURED ARTICLE (in article-col)
     ============================================ */
.featured__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-s);
    font-family: "Inconsolata", monospace;
    font-size: 0.8rem;
    color: var(--ink-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--sp-l);
}

.featured__title {
    animation: fadeUp 0.5s ease both;
}

/* ---- Post body content ---- */
.post-body {
    display: flex;
    flex-direction: column;
    gap: var(--sp-m);
    margin-top: var(--sp-xl);
}

.post-body p {
    color: var(--ink-mid);
}
.post-body p:first-child {
    font-size: 1.15rem;
    font-weight: 300;
    line-height: 1.8;
    color: var(--ink);
}

.post-body h2 {
    margin-top: var(--sp-l);
    font-size: 1.3rem;
    color: var(--ink);
}

.post-body blockquote {
    border-left: 4px solid var(--accent);
    padding: var(--sp-l) var(--sp-xl);
    background: rgba(255, 107, 26, 0.06);
    font-style: italic;
    font-weight: 300;
    font-size: 1.15rem;
    color: var(--ink);
}

.post-body pre {
    background: var(--bg-dark);
    color: var(--ink-on-dark);
    padding: var(--sp-l);
    overflow-x: auto;
    font-family: "Inconsolata", monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    border-left: 3px solid var(--accent);
}

.post-body ul {
    padding-left: var(--sp-l);
    color: var(--ink-mid);
}
.post-body li {
    margin-bottom: var(--sp-s);
    line-height: 1.6;
}
.post-body li::marker {
    color: var(--accent);
    font-weight: 700;
}

.post-body code:not(pre code) {
    background: var(--bg-code);
    padding: 2px 6px;
    font-size: 0.85em;
}

/* ============================================
     ARCHIVE LIST (in sidebar)
     ============================================ */
.archive__label {
    font-family: "Inconsolata", monospace;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ink-light);
    margin-bottom: var(--sp-l);
}

.post-item {
    display: flex;
    gap: var(--sp-m);
    align-items: baseline;
    padding: var(--sp-m) 0;
    border-top: 1px solid var(--ink-light);
    cursor: pointer;
    transition: background 0.15s ease;
    animation: fadeUp 0.4s ease both;
}
.post-item:hover {
    background: rgba(255, 107, 26, 0.06);
}

.post-item__index {
    font-family: "Inconsolata", monospace;
    font-size: 0.75rem;
    color: var(--ink-light);
    flex-shrink: 0;
    min-width: 3ch;
}

.post-item__body {
    flex: 1;
    min-width: 0;
}

.post-item__title {
    font-family: "Rangile", serif;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    line-height: 1.2;
    color: var(--ink);
}
.post-item:hover .post-item__title {
    color: var(--accent);
}

.post-item__date {
    font-family: "Inconsolata", monospace;
    font-size: 0.7rem;
    color: var(--ink-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--sp-xs);
}

.post-item__tag {
    display: inline-block;
    margin-left: var(--sp-s);
    padding: 1px 5px;
    background: var(--bg-code);
    font-family: "Inconsolata", monospace;
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.post-item:nth-child(1) {
    animation-delay: 0.05s;
}
.post-item:nth-child(2) {
    animation-delay: 0.1s;
}
.post-item:nth-child(3) {
    animation-delay: 0.15s;
}
.post-item:nth-child(4) {
    animation-delay: 0.2s;
}
.post-item:nth-child(5) {
    animation-delay: 0.25s;
}

/* ============================================
     FOOTER
     ============================================ */
.site-footer {
    padding: var(--sp-l) var(--gutter);
}
.site-footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: var(--sp-m);
    font-family: "Inconsolata", monospace;
    font-size: 0.75rem;
    color: var(--ink-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding-top: var(--sp-m);
}

/* ============================================
     VIEW SWITCHER
     ============================================ */
.view-switch button {
    font-family: "Inconsolata", monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0;
    border: none;
    background: none;
    color: var(--ink-mid);
    cursor: pointer;
    transition: color 0.2s ease;
}
.view-switch button:hover {
    color: var(--accent);
}

/* ============================================
     DARK MODE
     ============================================ */
body.dark {
    --bg: #0e1117; /* deep blue-black */
    --bg-dark: #080a0e;
    --bg-card: #161b22;
    --bg-code: #1c2129;
    --ink: #c9d1d9; /* cool light grey */
    --ink-mid: #8b949e; /* muted cool grey */
    --ink-light: #484f58; /* dim grey */
    --ink-on-dark: #c9d1d9;
    --accent: #ff6b1a; /* neon orange stays hot */
    --accent-light: #ff8c4a;
}
body.dark::before {
    opacity: 0.035;
}
body.dark img {
    filter: invert(1);
}
/* ============================================
     RESPONSIVE — stack on narrow
     ============================================ */
@media (max-width: 860px) {
    .page-body {
        flex-direction: column;
    }
    .article-col {
        border-right: none;
        border-bottom: 1px solid var(--ink-light);
        padding-bottom: var(--sp-xl);
    }
    .archive-col {
        flex: none;
        position: static;
        max-height: none;
        overflow-y: visible;
    }
}

/* ============================================
     ANIMATIONS
     ============================================ */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}