/* ============================================================
   GB10 Studio — Blog ("The Log")
   Industrial-black / amber editorial system. Standalone pages.
   ============================================================ */

:root {
    --bg: #0a0a0a;
    --bg-2: #080808;
    --bg-card: #0d0d0d;
    --amber: #ffa100;
    --amber-hi: #ffb733;
    --line: #1a1a1a;
    --line-2: #242424;
    --ink: #f0f0f0;
    --ink-2: #b8b8b8;
    --mute: #777;
    --mute-2: #555;
    --mono: 'IBM Plex Mono', ui-monospace, monospace;
    --sans: 'IBM Plex Sans', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--ink-2);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    /* subtle grain */
    background-image:
        radial-gradient(120% 80% at 50% -10%, rgba(255,161,0,0.04), transparent 50%);
    background-attachment: fixed;
}

a { color: var(--amber); text-decoration: none; }
a:hover { color: var(--amber-hi); }

/* ---- Top bar ---- */
.blog-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--line);
    background: rgba(10,10,10,0.82);
    backdrop-filter: blur(10px);
}
.blog-logo {
    font-family: var(--mono);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.16em;
    color: var(--ink);
}
.blog-logo span { color: var(--amber); }
.blog-nav-links {
    display: flex;
    gap: 1.75rem;
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.blog-nav-links a { color: var(--mute); }
.blog-nav-links a:hover { color: var(--ink); }
.blog-nav-cta {
    color: var(--amber) !important;
}

/* ---- Shared shell ---- */
.blog-wrap { max-width: 1140px; margin: 0 auto; padding: 0 2rem; }

.blog-eyebrow {
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--amber);
}

/* ============================================================
   INDEX
   ============================================================ */
.blog-masthead {
    padding: 5rem 0 3rem;
    border-bottom: 1px solid var(--line);
}
.blog-masthead h1 {
    font-family: var(--mono);
    font-size: 3.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--ink);
    margin: 1rem 0 1rem;
    line-height: 1.05;
}
.blog-masthead h1 .amber { color: var(--amber); }
.blog-masthead p {
    max-width: 540px;
    color: var(--mute);
    font-size: 1rem;
    line-height: 1.7;
}

/* Featured */
.blog-featured {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 0;
    border: 1px solid var(--line-2);
    border-radius: 8px;
    overflow: hidden;
    margin: 3rem 0;
    background: var(--bg-card);
    transition: border-color 0.2s;
}
.blog-featured:hover { border-color: #3a2e10; }
.blog-featured-art {
    position: relative;
    min-height: 280px;
    background:
        radial-gradient(90% 120% at 0% 0%, rgba(255,161,0,0.16), transparent 60%),
        repeating-linear-gradient(135deg, #0e0e0e 0 2px, transparent 2px 22px),
        #0b0b0b;
    border-right: 1px solid var(--line-2);
    display: flex;
    align-items: flex-end;
    padding: 1.75rem;
}
.blog-featured-chip {
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #0a0a0a;
    background: var(--amber);
    padding: 0.25rem 0.6rem;
    border-radius: 2px;
    position: relative;
    z-index: 1;
}

/* Photoreal GB10 superchip hero art (3D-tilted board) */
.blog-featured-art::before {
    content: "";
    position: absolute;
    inset: -10%;
    background: radial-gradient(55% 55% at 50% 46%, rgba(255,161,0,0.13), transparent 70%);
    animation: chip-pulse 5.5s ease-in-out infinite;
    pointer-events: none;
}
.chip3d {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: chip-float 9s ease-in-out infinite;
    pointer-events: none;
}
.chip-board {
    height: 92%;
    max-width: 80%;
    transform: perspective(1100px) rotateX(14deg) rotateY(-8deg) rotateZ(-8deg);
    filter: drop-shadow(22px 30px 28px rgba(0,0,0,0.75)) drop-shadow(0 0 34px rgba(255,161,0,0.07));
}
.chip-board .sheen {
    animation: chip-sheen 7s ease-in-out infinite;
}
.chip-board .led {
    animation: led-blink 3.2s ease-in-out infinite;
}
@keyframes chip-sheen {
    0%, 50% { transform: translateX(0) skewX(-18deg); }
    90%, 100% { transform: translateX(560px) skewX(-18deg); }
}
@keyframes led-blink {
    0%, 88% { opacity: 1; }
    92%, 96% { opacity: 0.15; }
    100% { opacity: 1; }
}
@keyframes chip-pulse {
    0%, 100% { opacity: 0.55; }
    50% { opacity: 1; }
}
@keyframes chip-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
@media (prefers-reduced-motion: reduce) {
    .blog-featured-art::before,
    .chip3d,
    .chip-board .sheen,
    .chip-board .led { animation: none; }
}
.blog-featured-body { padding: 2.5rem; display: flex; flex-direction: column; }
.blog-featured-body .blog-meta { margin-bottom: 1rem; }
.blog-featured-body h2 {
    font-family: var(--mono);
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 1rem;
}
.blog-featured-body p { color: var(--mute); font-size: 0.92rem; line-height: 1.7; margin-bottom: 1.5rem; }
.blog-readmore {
    font-family: var(--mono);
    font-size: 0.76rem;
    letter-spacing: 0.04em;
    color: var(--amber);
    margin-top: auto;
}

.blog-meta {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--mute-2);
    display: flex;
    gap: 0.6rem;
    align-items: center;
    flex-wrap: wrap;
}
.blog-meta .cat { color: var(--amber); }
.blog-meta .dot { color: #333; }

/* Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    padding: 1rem 0 5rem;
}
.blog-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--bg-card);
    padding: 1.75rem;
    transition: border-color 0.2s, transform 0.2s;
}
.blog-card:hover { border-color: #3a2e10; transform: translateY(-3px); }
.blog-card-num {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--mute-2);
    margin-bottom: 1.25rem;
}
.blog-card h3 {
    font-family: var(--mono);
    font-size: 1.12rem;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 0.75rem;
}
.blog-card p { color: var(--mute); font-size: 0.86rem; line-height: 1.6; margin-bottom: 1.5rem; flex: 1; }
.blog-card .blog-meta { font-size: 0.62rem; }

/* ============================================================
   ARTICLE
   ============================================================ */
.post {
    max-width: 720px;
    margin: 0 auto;
    padding: 4rem 2rem 2rem;
}
.post-back {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--mute);
    display: inline-block;
    margin-bottom: 2.5rem;
}
.post-back:hover { color: var(--amber); }
.post-header { border-bottom: 1px solid var(--line); padding-bottom: 2rem; margin-bottom: 2.5rem; }
.post-header .blog-meta { margin-bottom: 1.25rem; }
.post-header h1 {
    font-family: var(--mono);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.025em;
    color: var(--ink);
}
.post-lede {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--ink-2);
    margin-top: 1.5rem;
}

.post-body { font-size: 1.02rem; line-height: 1.8; color: #c4c4c4; }
.post-body > p { margin-bottom: 1.5rem; }
.post-body h2 {
    font-family: var(--mono);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin: 3rem 0 1rem;
    padding-top: 1rem;
}
.post-body h2::before {
    content: "";
    display: block;
    width: 32px;
    height: 2px;
    background: var(--amber);
    margin-bottom: 1.25rem;
}
.post-body h3 {
    font-family: var(--mono);
    font-size: 1.05rem;
    color: var(--ink);
    margin: 2rem 0 0.75rem;
}
.post-body a { text-decoration: underline; text-underline-offset: 3px; }
.post-body strong { color: var(--ink); font-weight: 600; }
.post-body ul, .post-body ol { margin: 0 0 1.5rem 1.25rem; }
.post-body li { margin-bottom: 0.6rem; }

.post-body blockquote {
    border-left: 2px solid var(--amber);
    margin: 2rem 0;
    padding: 0.25rem 0 0.25rem 1.5rem;
    font-family: var(--mono);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--ink);
}

.post-callout {
    border: 1px solid var(--line-2);
    border-left: 2px solid var(--amber);
    border-radius: 4px;
    background: var(--bg-card);
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
}
.post-callout .k {
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--amber);
    display: block;
    margin-bottom: 0.5rem;
}
.post-callout p { margin: 0; font-size: 0.92rem; color: var(--ink-2); }

/* inline spec row */
.post-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
    margin: 2.5rem 0;
}
.post-stat { padding: 1.5rem; text-align: center; border-right: 1px solid var(--line); }
.post-stat:last-child { border-right: none; }
.post-stat .v { font-family: var(--mono); font-size: 1.6rem; font-weight: 700; color: var(--amber); display: block; }
.post-stat .k { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mute-2); margin-top: 0.4rem; display: block; }

/* CTA / footer of post */
.post-cta {
    border: 1px solid var(--line-2);
    border-radius: 8px;
    background:
        radial-gradient(120% 100% at 100% 0%, rgba(255,161,0,0.07), transparent 55%),
        var(--bg-card);
    padding: 2.5rem;
    margin: 4rem 0 2rem;
    text-align: center;
}
.post-cta h3 { font-family: var(--mono); font-size: 1.3rem; color: var(--ink); margin-bottom: 0.75rem; }
.post-cta p { color: var(--mute); margin-bottom: 1.5rem; font-size: 0.92rem; }
.btn-amber {
    display: inline-block;
    background: var(--amber);
    color: #0a0a0a;
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.8rem 1.9rem;
    border-radius: 2px;
}
.btn-amber:hover { background: var(--amber-hi); color: #0a0a0a; }

/* ---- Footer ---- */
.blog-foot {
    border-top: 1px solid var(--line);
    padding: 2rem;
    text-align: center;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--mute-2);
    letter-spacing: 0.05em;
}
.blog-foot a { color: var(--mute); }
.blog-foot a:hover { color: var(--amber); }

/* ---- Responsive ---- */
@media (max-width: 880px) {
    .blog-featured { grid-template-columns: 1fr; }
    .blog-featured-art { min-height: 160px; border-right: none; border-bottom: 1px solid var(--line-2); }
    .blog-grid { grid-template-columns: 1fr; }
    .blog-masthead h1 { font-size: 2.3rem; }
    .post-header h1 { font-size: 1.9rem; }
    .post-stats { grid-template-columns: 1fr; }
    .post-stat { border-right: none; border-bottom: 1px solid var(--line); }
    .blog-nav-links { gap: 1rem; }
}
@media (max-width: 560px) {
    .blog-nav { padding: 0.9rem 1.25rem; }
    .blog-nav-links .hide-sm { display: none; }
    .post { padding: 2.5rem 1.5rem; }
}