/* ==========================================================================
   Site styles — "Industry" layout, cyberpunk terminal palette.
   Near-black ground, cyan primary / magenta secondary neon, hairline grid,
   scanline overlay and glitched display type.
   Blog *post* pages still use css/main.css.
   ========================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700&family=Chakra+Petch:wght@500;600;700&family=Share+Tech+Mono&display=swap");

:root {
    --color-bg: #07080d;
    --color-bg-elev: rgba(13, 18, 28, 0.72);
    --color-text: #c4cfe0;
    --color-heading: #ecf5ff;
    --color-muted: #6d7d96;
    --color-divider: #1d2a3d;

    /* Neon accents */
    --color-cyan: #00e5ff;
    --color-magenta: #ff2e88;
    --color-amber: #ffcc4d;

    /* Structural accent is now the cyan, not white. */
    --color-accent: var(--color-cyan);
    --color-accent-soft: rgba(0, 229, 255, 0.14);
    --color-accent-softer: rgba(0, 229, 255, 0.06);

    --glow-cyan: 0 0 10px rgba(0, 229, 255, 0.45), 0 0 26px rgba(0, 229, 255, 0.16);
    --glow-magenta: 0 0 10px rgba(255, 46, 136, 0.45), 0 0 26px rgba(255, 46, 136, 0.16);
    --text-glow-cyan: 0 0 12px rgba(0, 229, 255, 0.55);

    --color-link: #4fe3ff;
    --color-link-hover: #9df3ff;

    --font-heading: "Chakra Petch", "Barlow Condensed", system-ui, sans-serif;
    --font-heading-weight: 600;
    --font-body: "Barlow", system-ui, sans-serif;
    --font-mono: "Share Tech Mono", ui-monospace, "JetBrains Mono", Consolas, monospace;

    --space-1: 3.4px;
    --space-2: 6.8px;
    --space-3: 10.2px;
    --space-4: 13.6px;
    --space-5: 17px;
    --space-6: 20.4px;

    --page-max: 1200px;
    --page-pad: clamp(20px, 5vw, 72px);
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    position: relative;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    font-weight: 400;
    text-wrap: pretty;
    -webkit-font-smoothing: antialiased;
}

/* Hairline grid + distant neon haze, fixed behind everything. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(70ch 60ch at 12% -8%, rgba(0, 229, 255, 0.16), transparent 65%),
        radial-gradient(60ch 55ch at 92% 8%, rgba(255, 46, 136, 0.13), transparent 62%),
        radial-gradient(90ch 60ch at 50% 108%, rgba(0, 229, 255, 0.08), transparent 68%),
        linear-gradient(rgba(120, 190, 230, 0.05) 1px, transparent 1px) 0 0 / 100% 44px,
        linear-gradient(90deg, rgba(120, 190, 230, 0.05) 1px, transparent 1px) 0 0 / 44px 100%;
}

/* CRT scanlines over the top. */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.5;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.16) 0 1px,
        transparent 1px 3px
    );
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-heading-weight);
    color: var(--color-heading);
    line-height: 1.12;
    letter-spacing: -0.005em;
    margin: 0 0 var(--space-2);
}

p { margin: 0 0 var(--space-3); }
img { display: block; max-width: 100%; }
figure { margin: 0; }

a {
    color: var(--color-link);
    text-decoration: none;
    text-underline-offset: 3px;
}
a:hover { color: var(--color-link-hover); text-decoration: underline; }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-cyan); outline-offset: 2px; box-shadow: var(--glow-cyan); }
::selection { background: rgba(0, 229, 255, 0.3); color: #ffffff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #05060a; }
::-webkit-scrollbar-thumb { background: #17324a; border: 2px solid #05060a; }
::-webkit-scrollbar-thumb:hover { background: var(--color-cyan); }

/* — layout — */
.page {
    max-width: var(--page-max);
    margin: 0 auto;
    padding: 0 var(--page-pad);
}

.section { padding: calc(2.5 * var(--space-6)) 0; }
.section-hero { padding: calc(4 * var(--space-6)) 0 calc(3 * var(--space-6)); }
.section-last { padding-bottom: calc(3 * var(--space-6)); }

.section-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 15px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    font-weight: 400;
    color: var(--color-cyan);
    text-shadow: var(--text-glow-cyan);
    margin-bottom: var(--space-2);
}
.section-label::before { content: "// "; color: var(--color-magenta); text-shadow: none; }
.section-label::after {
    content: "_";
    margin-left: 2px;
    animation: caret 1.1s steps(1) infinite;
}

@keyframes caret { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

.rule {
    height: 1px;
    border: 0;
    margin: 0 0 var(--space-4);
    background: linear-gradient(90deg, var(--color-cyan), rgba(0, 229, 255, 0.15) 32%, var(--color-divider) 60%, transparent);
}
.rule-wide { margin-bottom: var(--space-5); }

.section-title {
    font-size: 34px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin: 0 0 var(--space-3);
}

.prose {
    font-size: 19px;
    line-height: 1.65;
    max-width: 60ch;
    margin: 0;
    color: var(--color-text);
}
.prose + .prose { margin-top: var(--space-3); }

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* — blueprint frame: square, hairline, with glowing registration marks — */
.blueprint {
    position: relative;
    border: 1px solid var(--color-divider);
    border-radius: 0;
}
.blueprint > .corner {
    position: absolute;
    width: 11px;
    height: 11px;
    color: var(--color-cyan);
    filter: drop-shadow(0 0 4px rgba(0, 229, 255, 0.7));
    transition: color 0.2s ease-in-out;
}
.blueprint > .corner::before,
.blueprint > .corner::after { content: ""; position: absolute; background: currentColor; }
.blueprint > .corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.blueprint > .corner::after { top: 5px; left: 0; width: 100%; height: 1px; }
.blueprint > .corner.tl { top: -6px; left: -6px; }
.blueprint > .corner.tr { top: -6px; right: -6px; }
.blueprint > .corner.bl { bottom: -6px; left: -6px; }
.blueprint > .corner.br { bottom: -6px; right: -6px; }

/* — buttons: neon outlines with a sheen sweep — */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 17px;
    line-height: 1.2;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-heading);
    background: rgba(0, 229, 255, 0.03);
    border: 1px solid var(--color-divider);
    border-radius: 0;
    padding: var(--space-3) calc(var(--space-4) * 1.2);
    transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out,
                box-shadow 0.2s ease-in-out, color 0.2s ease-in-out;
}
/* Sheen sweeps via background-position, so it stays inside the box and the
   registration marks outside the border are never clipped. */
.btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.22) 50%, transparent 58%);
    background-size: 280% 100%;
    background-position: 130% 0;
    transition: background-position 0.55s ease-out;
    pointer-events: none;
}
.btn:hover::after { background-position: -30% 0; }
.btn:hover { text-decoration: none; color: var(--color-heading); }

.btn-primary {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
    box-shadow: inset 0 0 12px rgba(0, 229, 255, 0.1);
    text-shadow: var(--text-glow-cyan);
}
.btn-primary:hover {
    background: var(--color-accent-soft);
    color: #ffffff;
    box-shadow: var(--glow-cyan), inset 0 0 14px rgba(0, 229, 255, 0.16);
}
.btn-primary:active { background: rgba(0, 229, 255, 0.28); }

.btn-secondary { border-color: rgba(255, 46, 136, 0.45); color: #ffa8c8; }
.btn-secondary:hover {
    background: rgba(255, 46, 136, 0.1);
    border-color: var(--color-magenta);
    color: #ffffff;
    box-shadow: var(--glow-magenta);
}
.btn-secondary .corner { color: var(--color-magenta); filter: drop-shadow(0 0 4px rgba(255, 46, 136, 0.7)); }

.btn-ghost {
    border-color: transparent;
    background: transparent;
    color: var(--color-link);
    padding-inline: var(--space-1);
}
.btn-ghost:hover { background: var(--color-accent-softer); color: var(--color-link-hover); text-shadow: var(--text-glow-cyan); }

/* — cards — */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-5);
    background:
        linear-gradient(160deg, rgba(0, 229, 255, 0.05), transparent 48%),
        var(--color-bg-elev);
    border-radius: 0;
}
/* Notched top-right corner: opaque triangle punched out of the frame, with a
   neon hairline along the cut. */
.card::after {
    content: "";
    position: absolute;
    top: -1px;
    right: -1px;
    width: 20px;
    height: 20px;
    pointer-events: none;
    background: linear-gradient(
        225deg,
        var(--color-bg) 0 calc(50% - 1px),
        rgba(0, 229, 255, 0.6) calc(50% - 1px) 50%,
        transparent 50%
    );
}
.card-kicker {
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-magenta);
}
.card-title {
    font-family: var(--font-heading);
    font-weight: var(--font-heading-weight);
    font-size: 21px;
    line-height: 1.2;
    color: var(--color-heading);
    transition: color 0.2s ease-in-out, text-shadow 0.2s ease-in-out;
}
.card-body { margin: 0; font-size: 16px; line-height: 1.55; color: #a9b6c9; flex: 1; }
.card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
}
.card-meta::before { content: "["; color: var(--color-cyan); }
.card-meta::after { content: "]"; color: var(--color-cyan); order: 9; }

a.card {
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out,
                transform 0.2s ease-in-out, background-position 0.6s ease-out;
    background-image:
        linear-gradient(115deg, transparent 44%, rgba(0, 229, 255, 0.1) 50%, transparent 56%),
        linear-gradient(160deg, rgba(0, 229, 255, 0.05), transparent 48%);
    background-size: 280% 100%, auto;
    background-position: 130% 0, 0 0;
}
a.card:hover {
    text-decoration: none;
    color: inherit;
    border-color: var(--color-cyan);
    box-shadow: var(--glow-cyan);
    transform: translateY(-2px);
    background-position: -30% 0, 0 0;
}
a.card:hover .card-title { color: var(--color-link-hover); text-shadow: var(--text-glow-cyan); }

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(20px, 3vw, 32px);
}

/* — tags — */
.tag-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-3); }
.tag {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.08em;
    padding: 4px 12px;
    border-radius: 0;
    border: 1px solid transparent;
}
.tag-accent {
    background: rgba(0, 229, 255, 0.1);
    border-color: rgba(0, 229, 255, 0.4);
    color: var(--color-cyan);
    text-shadow: var(--text-glow-cyan);
}
.tag-neutral {
    background: rgba(255, 46, 136, 0.09);
    border-color: rgba(255, 46, 136, 0.35);
    color: #ff8ab6;
}
.tag-outline { border-color: var(--color-divider); color: #b9c6d8; }

/* — navigation — */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    padding: var(--space-3) var(--page-pad);
    background: rgba(7, 8, 13, 0.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-divider);
}
/* Scanning beam along the nav's lower edge. */
.nav::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    height: 1px;
    width: 22%;
    background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
    box-shadow: var(--glow-cyan);
    animation: beam 6s linear infinite;
}
@keyframes beam {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(560%); }
}

.nav-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 22px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-right: auto;
    color: var(--color-heading);
    text-shadow: 0 0 14px rgba(0, 229, 255, 0.35);
}
.nav a {
    position: relative;
    font-family: var(--font-mono);
    color: var(--color-text);
    text-decoration: none;
    font-size: 16px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.nav a:not(.btn)::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -4px;
    height: 1px;
    background: var(--color-cyan);
    box-shadow: var(--glow-cyan);
    transition: right 0.2s ease-in-out;
}
.nav a:not(.btn):hover::after,
.nav a:not(.btn)[aria-current]::after { right: 0; }
.nav a:hover { color: var(--color-cyan); text-decoration: none; text-shadow: var(--text-glow-cyan); }
.nav a[aria-current] { color: var(--color-cyan); }
.nav a.btn { font-family: var(--font-heading); font-size: 15px; padding: var(--space-2) var(--space-4); }

/* — action rows / social — */
.actions { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-6); }
.social { display: flex; gap: var(--space-4); flex-wrap: wrap; font-family: var(--font-mono); letter-spacing: 0.08em; }
.social a { text-transform: uppercase; }
.social a::before { content: "> "; color: var(--color-magenta); }

.site-footer {
    padding: var(--space-6) 0;
    font-family: var(--font-mono);
    font-size: 14px;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    border-top: 1px solid var(--color-divider);
}

/* — hero — */
.hero-title {
    position: relative;
    font-size: clamp(44px, 6.5vw, 88px);
    line-height: 1.04;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    margin: 0;
    color: var(--color-heading);
    text-shadow: 0 0 24px rgba(0, 229, 255, 0.35);
}

/* Chromatic-aberration glitch: needs data-text="…" on the element. */
.glitch { position: relative; }
.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    pointer-events: none;
    clip-path: inset(0 0 0 0);
}
.glitch::before {
    color: var(--color-magenta);
    text-shadow: 2px 0 var(--color-magenta);
    animation: glitch-a 3.6s steps(2, end) infinite;
}
.glitch::after {
    color: var(--color-cyan);
    text-shadow: -2px 0 var(--color-cyan);
    animation: glitch-b 3.6s steps(2, end) infinite;
}
@keyframes glitch-a {
    0%, 88%, 100% { clip-path: inset(100% 0 0 0); transform: none; }
    89% { clip-path: inset(12% 0 62% 0); transform: translate(-3px, -1px); }
    92% { clip-path: inset(48% 0 26% 0); transform: translate(3px, 1px); }
    95% { clip-path: inset(72% 0 8% 0); transform: translate(-2px, 0); }
}
@keyframes glitch-b {
    0%, 88%, 100% { clip-path: inset(100% 0 0 0); transform: none; }
    90% { clip-path: inset(28% 0 44% 0); transform: translate(3px, 1px); }
    93% { clip-path: inset(64% 0 18% 0); transform: translate(-3px, -1px); }
    96% { clip-path: inset(6% 0 78% 0); transform: translate(2px, 0); }
}

.hero-sub {
    font-family: var(--font-mono);
    font-size: 20px;
    line-height: 1.5;
    letter-spacing: 0.06em;
    max-width: 60ch;
    margin: var(--space-4) 0 0;
    color: var(--color-cyan);
    opacity: 0.85;
    font-weight: 400;
    text-shadow: var(--text-glow-cyan);
}

.page-title {
    font-size: clamp(36px, 5vw, 56px);
    text-transform: uppercase;
    letter-spacing: 0.01em;
    margin: 0;
    text-shadow: 0 0 22px rgba(0, 229, 255, 0.3);
}

/* — responsive — */
@media screen and (max-width: 900px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media screen and (max-width: 640px) {
    .grid-3 { grid-template-columns: 1fr; }
    .nav { gap: var(--space-3); row-gap: var(--space-2); }
    .nav-brand { flex: 1 0 100%; margin-right: 0; }
    .section-title { font-size: 28px; }
    .prose { font-size: 17px; }
    .hero-sub { font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .glitch::before,
    .glitch::after,
    .nav::after,
    .section-label::after { animation: none; }
    .glitch::before,
    .glitch::after { display: none; }
    .nav::after { display: none; }
    .section-label::after { opacity: 1; }
    * { transition-duration: 0.01ms !important; }
}

/* — anchors clear the sticky nav — */
[id] { scroll-margin-top: 84px; }

/* — effects switch (button is injected by js/main.js) — */
.fx-toggle {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-cyan);
    background: transparent;
    border: 1px solid var(--color-divider);
    border-radius: 0;
    padding: 4px 9px;
    cursor: pointer;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out, color 0.2s ease-in-out;
}
.fx-toggle:hover { border-color: var(--color-cyan); box-shadow: var(--glow-cyan); }
.fx-toggle[aria-pressed="false"] { color: var(--color-muted); }

.nav.is-scrolled {
    border-bottom-color: rgba(0, 229, 255, 0.45);
    box-shadow: 0 1px 22px rgba(0, 229, 255, 0.12);
}

:root[data-fx="off"] body::after,
:root[data-fx="off"] .nav::after,
:root[data-fx="off"] .glitch::before,
:root[data-fx="off"] .glitch::after { display: none; }
:root[data-fx="off"] .section-label::after { animation: none; opacity: 1; }