/* self-hosted fonts — no third-party requests, no visitor IPs leaked */
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url('/assets/fonts/jetbrainsmono-400.woff2') format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url('/assets/fonts/jetbrainsmono-500.woff2') format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:700;font-display:swap;src:url('/assets/fonts/jetbrainsmono-700.woff2') format('woff2')}
@font-face{font-family:'Space Mono';font-style:normal;font-weight:400;font-display:swap;src:url('/assets/fonts/spacemono-400.woff2') format('woff2')}
@font-face{font-family:'Space Mono';font-style:normal;font-weight:700;font-display:swap;src:url('/assets/fonts/spacemono-700.woff2') format('woff2')}

:root{
    color-scheme: dark; /* belt-and-suspenders alongside the <meta color-scheme> tag */
    --bg:#12151c;
    --panel:#1a1f29;
    --panel-2:#212734;
    --line:#2a3140;
    --fg:#cbccc6;
    --fg-dim:#8a919c;
    --fg-faint:#7c8799;

    --cyan:#5ccfe6;   /* interactive / links / paths */
    --orange:#ffcc66; /* signature accent / prompt */

    --crit:#f28779;
    --high:#ff9f5c;
    --med:#ffd173;
    --low:#bae67e;
    --info:#5ccfe6;

    --mono-d:'Space Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
    --mono-b:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

    --maxw:1000px;
  }

  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

  body{
    margin:0;
    background:var(--bg);
    color:var(--fg);
    font-family:var(--mono-b);
    font-size:15px;
    line-height:1.65;
    -webkit-font-smoothing:antialiased;
    padding-top:34px; /* status bar */
  }

  /* ---- matrix rain (decorative, fixed behind all content) ---- */
  #matrix{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.45;transition:opacity .4s ease;forced-color-adjust:none}
  /* reduced motion: still a static frame (see main.js), just no animated fade transition into it */
  @media (prefers-reduced-motion:reduce){#matrix{transition:none}}
  /* green mode (konami pulse or the terminal's `neo` command) — brighter, matrix-classic */
  body.matrix-green #matrix{opacity:.68}

  a{color:var(--cyan);text-decoration:none}
  a:hover{text-decoration:underline;text-underline-offset:3px}
  a:focus-visible,button:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:2px}

  ::selection{background:var(--orange);color:var(--bg)}

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

  /* ---- status bar (signature: tmux/vim statusline) ---- */
  .statusbar{
    position:fixed;top:0;left:0;right:0;height:34px;z-index:50;
    background:var(--panel-2);
    border-bottom:1px solid var(--line);
    display:flex;align-items:center;
    font-family:var(--mono-b);font-size:12.5px;
    color:var(--fg-dim);
    overflow:hidden;white-space:nowrap;
  }
  .sb-tag{
    background:var(--orange);color:#171a24;font-weight:700;
    padding:0 12px;height:34px;display:flex;align-items:center;
    letter-spacing:.03em;flex:none;
  }
  .sb-path{padding:0 12px;color:var(--cyan);flex:none}
  .sb-spacer{flex:1 1 auto}
  .sb-item{padding:0 12px;border-left:1px solid var(--line);height:34px;display:flex;align-items:center;flex:none}
  .sb-item b{color:var(--fg);font-weight:500}
  .sb-ok{color:var(--low)}
  .sb-err{color:var(--crit)}
  @media(max-width:640px){.sb-loc{display:none}}
  @media(max-width:440px){.sb-clock{display:none}}

  /* ---- prompt line component ---- */
  .prompt{font-family:var(--mono-b);color:var(--fg-faint);margin:0 0 6px;font-size:13.5px}
  .prompt .u{color:var(--low)}
  .prompt .h{color:var(--fg-dim)}
  .prompt .p{color:var(--cyan)}
  .prompt .s{color:var(--orange);font-weight:700}
  .prompt .cmd{color:var(--fg)}

  /* ---- hero ---- */
  .hero{padding:70px 0 60px}
  .hero .handle{
    font-family:var(--mono-d);font-weight:700;
    font-size:clamp(52px,13vw,120px);
    line-height:.92;letter-spacing:-.02em;margin:6px 0 0;
    color:var(--fg);
  }
  .hero .handle .x{color:var(--orange)}
  .hero .role{
    font-family:var(--mono-d);font-size:clamp(15px,2.4vw,20px);
    color:var(--fg-dim);margin:18px 0 0;letter-spacing:.02em;
  }
  .hero .thesis{max-width:560px;margin:20px 0 0;color:var(--fg);font-size:15px}
  .hero .thesis .cy{color:var(--cyan)}

  .tags{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 0}
  .tag{
    font-size:12px;color:var(--fg-dim);
    border:1px solid var(--line);border-radius:2px;
    padding:3px 9px;background:var(--panel);letter-spacing:.02em;
  }
  .tag .k{color:var(--orange)}

  .heronav{display:flex;flex-wrap:wrap;gap:20px;margin:34px 0 0;font-size:14px}
  .heronav a{color:var(--cyan)}
  .heronav a::before{content:'./';color:var(--fg-faint)}

  /* ---- interactive terminal ---- */
  .term{
    margin:36px 0 0;max-width:640px;
    border:1px solid var(--line);border-radius:6px;overflow:hidden;
    background:rgba(26,31,41,.86);
    transition:border-color .35s ease,box-shadow .35s ease;
  }
  .term-bar{display:flex;align-items:center;gap:10px;padding:7px 12px;background:var(--panel-2);border-bottom:1px solid var(--line)}
  .term-dots{display:flex;gap:6px;flex:none}
  .term-dots i{width:10px;height:10px;border-radius:50%;background:var(--line);display:block}
  .term-dots i:nth-child(1){background:var(--crit)}
  .term-dots i:nth-child(2){background:var(--med)}
  .term-dots i:nth-child(3){background:var(--low)}
  .term-title{font-size:11.5px;color:var(--fg-faint);letter-spacing:.02em}
  .term-body{
    padding:12px 14px;max-height:200px;overflow-y:auto;
    font-family:var(--mono-b);font-size:13px;color:var(--fg-dim);line-height:1.6;
  }
  .term-out{white-space:pre-wrap;word-break:break-word;margin:0}
  .term-out + .term-out{margin-top:1px}
  .term-out b{color:var(--cyan);font-weight:500}
  .term-out a{color:var(--cyan)}
  .term-out.cmdline{color:var(--fg)}
  .term-out.muted{color:var(--fg-faint)}
  .term-out.err{color:var(--crit)}
  .term-out.neo{color:#7dffa0}
  .term-ps .u{color:var(--low)} .term-ps .h{color:var(--fg-dim)} .term-ps .p{color:var(--cyan)} .term-ps .s{color:var(--orange);font-weight:700}
  .term-inputline{display:flex;align-items:center;gap:8px;padding:9px 14px;border-top:1px solid var(--line);cursor:text;margin:0}
  .term-inputline .term-ps{flex:none;font-family:var(--mono-b);font-size:13px}
  .term-input{flex:1;min-width:0;background:transparent;border:0;outline:0;color:var(--fg);font-family:var(--mono-b);font-size:13px;padding:0;caret-color:var(--orange)}
  body.neo .term{border-color:rgba(0,255,90,.5);box-shadow:0 0 0 1px rgba(0,255,90,.15)}

  /* ---- section frame ---- */
  section{border-top:1px solid var(--line);padding:56px 0}
  .sechead{display:flex;align-items:baseline;gap:14px;margin:0 0 34px;flex-wrap:wrap}
  .sechead .path{font-family:var(--mono-d);font-weight:700;font-size:22px;color:var(--fg)}
  .sechead .path::before{content:'~/';color:var(--fg-faint);font-weight:400}
  .sechead .meta{font-size:12.5px;color:var(--fg-faint);margin-left:auto}

  /* ---- projects ---- */
  .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  @media(max-width:720px){.grid{grid-template-columns:1fr}}
  .card{
    background:var(--panel);border:1px solid var(--line);border-radius:4px;
    padding:20px 20px 16px;display:flex;flex-direction:column;
    transition:border-color .18s ease,transform .18s ease;
  }
  .card:hover{border-color:var(--cyan)}
  @media (prefers-reduced-motion:no-preference){.card:hover{transform:translateY(-2px)}}
  .card .top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
  .card .name{font-family:var(--mono-d);font-weight:700;font-size:17px;color:var(--fg)}
  .card .name .slash{color:var(--fg-faint)}
  .card .status{
    font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;
    padding:2px 7px;border-radius:2px;margin-left:auto;font-weight:700;
  }
  .st-active{background:rgba(186,230,126,.13);color:var(--low)}
  .st-wip{background:rgba(255,209,115,.13);color:var(--med)}
  .st-archived{background:rgba(90,98,111,.18);color:var(--fg-dim)}
  .card .desc{color:var(--fg-dim);font-size:13.5px;margin:0 0 14px;flex:1}
  .card .stack{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
  .chip{font-size:11px;color:var(--fg-dim);border:1px solid var(--line);border-radius:2px;padding:1px 7px}
  .chip .dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px;vertical-align:middle}
  .card .foot{display:flex;gap:16px;font-size:12.5px;color:var(--fg-faint);border-top:1px solid var(--line);padding-top:12px}
  .card .foot a{font-size:12.5px}
  .card .foot .commit{margin-left:auto;color:var(--fg-faint)}

  /* ---- writeups ---- */
  .log{border:1px solid var(--line);border-radius:4px;overflow:hidden}
  .entry{display:block;padding:18px 20px;border-bottom:1px solid var(--line);color:inherit;transition:background .15s ease}
  .entry:last-child{border-bottom:0}
  .entry:hover{background:var(--panel);text-decoration:none}
  .entry .row1{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
  .entry .date{font-size:12px;color:var(--fg-faint);flex:none;font-variant-numeric:tabular-nums}
  .entry .title{font-weight:500;color:var(--fg);font-size:15px}
  .entry:hover .title{color:var(--cyan)}
  .sev{font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:2px 8px;border-radius:2px;flex:none}
  .sev-crit{background:rgba(242,135,121,.14);color:var(--crit);border:1px solid rgba(242,135,121,.3)}
  .sev-high{background:rgba(255,159,92,.13);color:var(--high);border:1px solid rgba(255,159,92,.28)}
  .sev-med{background:rgba(255,209,115,.12);color:var(--med);border:1px solid rgba(255,209,115,.26)}
  .sev-info{background:rgba(92,207,230,.12);color:var(--info);border:1px solid rgba(92,207,230,.26)}
  .entry .excerpt{color:var(--fg-dim);font-size:13.5px;margin:8px 0 0;max-width:70ch}
  .entry .refs{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 0}
  .ref{font-size:11px;color:var(--fg-faint);font-family:var(--mono-b)}
  .ref .cve{color:var(--crit)}
  .ref .att{color:var(--orange)}

  /* ---- certs ---- */
  .certgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
  .cert{border:1px solid var(--line);border-radius:3px;padding:12px 14px;background:var(--panel);display:flex;align-items:center;gap:10px}
  a.cert:hover{border-color:var(--cyan)}
  @media (prefers-reduced-motion:no-preference){a.cert:hover{transform:translateY(-2px)}}
  .cert .marker{color:var(--low);font-weight:700;flex:none}
  .cert.wip .marker{color:var(--med)}
  .cert.planned .marker{color:var(--fg-faint)}
  .cert .cn{font-size:13.5px;color:var(--fg);font-weight:500}
  .cert .cs{font-size:10.5px;color:var(--fg-faint);display:block}
  .certlegend{display:flex;gap:20px;margin:0 0 24px;font-size:12px;color:var(--fg-dim);flex-wrap:wrap}
  .certlegend span b{font-weight:700}
  .certlegend .g{color:var(--low)} .certlegend .y{color:var(--med)} .certlegend .f{color:var(--fg-faint)}

  /* ---- contact / footer ---- */
  .foot-sec{border-top:1px solid var(--line);padding:56px 0 40px}
  .contact{display:flex;flex-wrap:wrap;gap:12px 26px;margin:18px 0 0;font-size:14.5px}
  .contact a::before{content:'→ ';color:var(--fg-faint)}
  .signoff{margin:40px 0 0;color:var(--fg-faint);font-size:12.5px}
  .signoff .ec{color:var(--low)}

  /* reveal — hidden pre-state only applies once JS confirms it can un-hide it (see main.js) */
  html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
  html.js .reveal.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){html.js .reveal{opacity:1;transform:none;transition:none}}

/* ============ CRT phosphor themes ============ */
/* Monochrome recolor of the foreground + accents; backgrounds stay near-black
   like a real phosphor tube. Applied on <body> by the theme switcher in main.js. */
  body.crt-green{
    --fg:#8bffb0; --fg-dim:#54c07a; --fg-faint:#3c8a58;
    --cyan:#9dffc0; --orange:#dfffe6;
    --crit:#7dffa0; --high:#8bffb0; --med:#b6ffcf; --low:#9dffc0; --info:#9dffc0;
    --line:#12351f; --panel:#0e1a12; --panel-2:#122417;
  }
  body.crt-amber{
    --fg:#ffcf8f; --fg-dim:#c79553; --fg-faint:#8a6a3d;
    --cyan:#ffd98a; --orange:#ffe6b0;
    --crit:#ff9f5c; --high:#ffb347; --med:#ffd173; --low:#ffe0a0; --info:#ffd98a;
    --line:#3a2c14; --panel:#1c150a; --panel-2:#26200f;
  }
  body.crt-white{
    --fg:#e7ebf1; --fg-dim:#9aa3af; --fg-faint:#6b7280;
    --cyan:#ffffff; --orange:#f2f4f8;
    --crit:#d7dbe2; --high:#e0e4ea; --med:#eceef2; --low:#f2f4f8; --info:#ffffff;
    --line:#2a3140; --panel:#171a22; --panel-2:#20242e;
  }
  /* faint static scanlines — texture only, opt-in with a theme, no motion/flicker */
  body[class*="crt-"]::after{
    content:"";position:fixed;inset:0;z-index:40;pointer-events:none;
    background:repeating-linear-gradient(rgba(0,0,0,0) 0 2px, rgba(0,0,0,.06) 2px 3px);
    mix-blend-mode:multiply;
  }

/* status-bar phosphor swatch (injected by main.js) */
  .sb-theme{
    background:transparent;border:0;border-left:1px solid var(--line);
    height:34px;padding:0 12px;flex:none;cursor:pointer;
    color:var(--orange);font-family:var(--mono-b);font-size:13px;line-height:1;
  }
  .sb-theme:hover{background:var(--panel)}
  @media(max-width:400px){.sb-theme{display:none}}

/* typewriter caret on the first prompt command */
  .type-caret{
    display:inline-block;width:.6ch;height:1.05em;margin-left:1px;
    background:var(--orange);vertical-align:text-bottom;
    animation:caret-blink 1.05s steps(1) infinite;
  }
  @keyframes caret-blink{50%{opacity:0}}
  @media (prefers-reduced-motion:reduce){.type-caret{animation:none}}

/* first-visit boot / POST overlay (created by main.js; never shown under reduced motion) */
  .boot{
    position:fixed;inset:0;z-index:200;background:var(--bg);
    display:flex;flex-direction:column;justify-content:center;
    padding:24px clamp(16px,6vw,80px);
    transition:opacity .35s ease;
  }
  .boot-out{opacity:0}
  .boot-lines{
    margin:0;font-family:var(--mono-b);font-size:clamp(11px,2.6vw,14px);line-height:1.7;
    color:var(--low);white-space:pre-wrap;text-shadow:0 0 6px rgba(186,230,126,.25);
  }
  .boot-hint{margin-top:22px;font-family:var(--mono-b);font-size:12px;color:var(--fg-faint)}

/* language / status dots — extracted from inline styles so CSP can drop 'unsafe-inline' */
.d-py{background:#3572A5}
.d-crit{background:var(--crit)}
.d-cyan{background:var(--cyan)}
.d-dim{background:var(--fg-dim)}
.d-low{background:var(--low)}
.d-med{background:var(--med)}
.d-orange{background:var(--orange)}
.dimtext{color:var(--fg-dim)}