/* self-hosted variable fonts (latin + latin-ext) */
  @font-face {
    font-family: "Space Grotesk"; font-style: normal; font-weight: 300 700; font-display: swap;
    src: url(/static/fonts/space-grotesk-latin.woff2) format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: "Space Grotesk"; font-style: normal; font-weight: 300 700; font-display: swap;
    src: url(/static/fonts/space-grotesk-latin-ext.woff2) format("woff2");
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
  }
  @font-face {
    font-family: "Inter"; font-style: normal; font-weight: 400 700; font-display: swap;
    src: url(/static/fonts/inter-latin.woff2) format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: "Inter"; font-style: normal; font-weight: 400 700; font-display: swap;
    src: url(/static/fonts/inter-latin-ext.woff2) format("woff2");
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
  }
  @font-face {
    font-family: "JetBrains Mono"; font-style: normal; font-weight: 400 700; font-display: swap;
    src: url(/static/fonts/jetbrains-mono-latin.woff2) format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: "JetBrains Mono"; font-style: normal; font-weight: 400 700; font-display: swap;
    src: url(/static/fonts/jetbrains-mono-latin-ext.woff2) format("woff2");
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
  }

  :root {
    --bg: #222222;
    --bg2: #262626;
    --panel: #292929;
    --panel2: #2D2D2D;
    --line: rgba(247, 241, 255, 0.09);
    --line2: rgba(247, 241, 255, 0.17);
    --bone: #F7F1FF;
    --ink2: #8B888F;
    --ink3: #69676C;
    --tang: #948AE3;
    --tang-hi: #B2ABEB;
    --tang-dim: rgba(148, 138, 227, 0.12);
    --tang-soft: rgba(148, 138, 227, 0.55);
    --honey: #FCE566;
    --honey-hi: #FDEC91;
    --honey-dim: rgba(252, 229, 102, 0.1);
    --honey-soft: rgba(252, 229, 102, 0.5);
    --umber: #7BD88F;
    --umber-hi: #9CE2AB;
    --umber-soft: rgba(123, 216, 143, 0.55);
    --red: #FC618D;
    --red-hi: #FD89AA;
    --dark: #302E39;
    --sans: "Space Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --ease: cubic-bezier(.22, .7, .25, 1);
    --pop: cubic-bezier(.3, 1.6, .5, 1);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html, body { overflow-x: clip; }
  html { scrollbar-color: #3C2E24 var(--bg); }
  ::-webkit-scrollbar { width: 12px; }
  ::-webkit-scrollbar-track { background: var(--bg); }
  ::-webkit-scrollbar-thumb { background: #3C2E24; border-radius: 6px; border: 3px solid var(--bg); }
  ::-webkit-scrollbar-thumb:hover { background: var(--tang); }
  body {
    background: var(--bg); color: var(--bone); font-family: var(--sans);
    -webkit-font-smoothing: antialiased; line-height: 1.55; font-size: 15px;
  }
  ::selection { background: var(--tang); color: var(--dark); }
  a { color: inherit; text-decoration: none; }
  :focus-visible { outline: 2px solid var(--tang); outline-offset: 3px; }
  img { max-width: 100%; display: block; }
  .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

  /* single warm hero vignette, <=6% */
  body::before {
    content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background: radial-gradient(ellipse 120% 60% at 50% -10%, rgba(148, 138, 227, 0.055), transparent 60%);
  }

  /* branch themes (inherited by chapter svg + type) */
  .th-tang { --bc: var(--tang); --bchi: var(--tang-hi); }
  .th-honey { --bc: var(--honey); --bchi: var(--honey-hi); }
  .th-umber { --bc: var(--umber); --bchi: var(--umber-hi); }

  /* ============ fixed header strip ============ */
  header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 60;
    background: rgba(34, 34, 34, 0.85);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .hdr-in {
    max-width: 1360px; margin: 0 auto; padding: 0 40px; height: 48px;
    display: flex; align-items: center; gap: 14px;
    font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em;
    color: var(--ink3); font-variant-numeric: tabular-nums; white-space: nowrap;
  }
  .hdr-in .hb { color: var(--bone); font-weight: 600; display: flex; align-items: center; gap: 8px; }
  .hb i { width: 7px; height: 7px; border-radius: 50%; background: var(--tang); box-shadow: 0 0 9px var(--tang-soft); animation: beat 2.4s ease-in-out infinite; font-style: normal; }
  @keyframes beat { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
  .hdr-in b { color: var(--ink2); font-weight: 500; }
  .hdr-in .am { color: var(--tang-hi); }
  .hdr-in .hs { color: var(--line2); }
  .hdr-in .grow { flex: 1; }
  .hdr-in a { color: var(--ink2); transition: color 0.25s; }
  .hdr-in a:hover { color: var(--tang-hi); }

  /* ============ chapters ============ */
  .ch { position: relative; min-height: 100vh; display: flex; align-items: center; }
  .cg { position: absolute; inset: 0; z-index: 3; pointer-events: none; overflow: visible; }
  .cg .hit { pointer-events: all; fill: transparent; cursor: default; }
  .ch-in {
    position: relative; z-index: 2; width: 58%; padding: 110px 40px 110px 8.5vw;
    transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  }
  /* content hides for the scroll reveal only when JS is running */
  .js .ch-in { opacity: 0; transform: translateY(28px); }
  .js .ch-in.vis { opacity: 1; transform: none; }
  .ch-hero .ch-in { width: 100%; max-width: 1360px; margin: 0 auto; padding: 130px 40px 60px; }
  .ch-prj { display: block; }
  .ch-prj .ch-in { width: 100%; padding: 16vh 40px 10vh 12vw; transform: none; }
  .ch-fin .ch-in { width: 100%; max-width: 880px; margin: 0 auto; padding: 110px 40px; }

  .kick2 { font: 500 12px var(--mono); letter-spacing: 0.06em; color: var(--ink3); }
  .kick2 b { color: var(--bchi); font-weight: 600; }
  .big { font-size: clamp(40px, 4.4vw, 62px); line-height: 1.02; letter-spacing: -0.035em; font-weight: 750; margin-top: 16px; max-width: 16ch; }
  .per2 { font: 700 clamp(30px, 3vw, 42px)/1.15 var(--mono); letter-spacing: -0.04em; color: var(--bchi); font-variant-numeric: tabular-nums; margin-top: 14px; }
  .co2 { font-size: clamp(19px, 1.9vw, 26px); font-weight: 650; letter-spacing: -0.02em; color: var(--ink2); margin-top: 8px; }
  .desc2 { color: var(--ink3); font-size: 15px; margin-top: 18px; max-width: 50ch; }
  .bio, .desc2, .pdesc, .deg .tl { font-family: var(--body); }

  .deg { margin-top: 26px; border-left: 2px solid var(--tang-soft); padding-left: 18px; max-width: 60ch; }
  .deg b { display: block; font-size: 18px; font-weight: 650; letter-spacing: -0.015em; line-height: 1.3; }
  .deg .tl { margin-top: 5px; font-size: 13px; color: var(--ink3); }
  .deg .k { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--honey); margin-right: 8px; }

  /* ---- svg pieces ---- */
  .seg2 { fill: none; stroke: var(--bc); stroke-width: 3; stroke-linecap: round; }
  .rail-main { stroke: var(--tang); }
  .cd .c {
    fill: var(--bone); stroke: var(--bc); stroke-width: 2.5;
    transform: scale(0); transform-box: fill-box; transform-origin: center;
    transition: transform 0.5s var(--pop);
  }
  .cd.on .c { transform: scale(1); }
  .cd.merge .c { fill: var(--bc); }
  .cd.red .c { stroke: var(--red); }
  .c.hollow { stroke-dasharray: 3 3.5; }
  .pr { fill: none; stroke: var(--tang-soft); stroke-width: 1.2; opacity: 0; transform-box: fill-box; transform-origin: center; }
  .cd.on .pr { animation: pulse 2.2s ease-out infinite 0.5s; }
  @keyframes pulse { 0% { opacity: 0.9; transform: scale(0.55); } 70%, 100% { opacity: 0; transform: scale(1.5); } }
  .cd .lb, .cd .lbh, .cd .lb2, .cd .lbs { opacity: 0; transition: opacity 0.45s var(--ease) 0.12s; }
  .cd.on .lb, .cd.on .lbh, .cd.on .lb2, .cd.on .lbs { opacity: 1; }
  .lb { font: 500 15px var(--mono); fill: var(--bone); }
  .lb2 { font: 500 12.5px var(--mono); fill: var(--ink2); }
  .lbh { font: 400 10px var(--mono); fill: var(--ink3); letter-spacing: 0.05em; }
  .lbs { font: 500 10.5px var(--mono); fill: var(--ink3); letter-spacing: 0.05em; }
  .cd.red .lb { fill: var(--red-hi); }
  .chp2 { opacity: 0; transition: opacity 0.5s var(--ease) 0.12s; }
  .chp2.on { opacity: 1; }
  .ct { font: 600 9.5px var(--mono); letter-spacing: 0.07em; fill: var(--bchi); }
  .cr { fill: #222222; stroke: var(--bc); stroke-opacity: 0.45; }
  .tagp .ct { fill: var(--honey-hi); }
  .tagp .cr { stroke: var(--honey); stroke-opacity: 0.5; }
  .hd2 .cr { fill: var(--tang); stroke: none; }
  .hd2 .ct { fill: #302E39; font-weight: 700; letter-spacing: 0.1em; }
  .hd2 .hln { stroke: var(--tang); stroke-width: 1.5; }
  .dashp { fill: none; stroke: var(--tang-soft); stroke-width: 2; stroke-dasharray: 3 9; stroke-linecap: round; }
  .noanim * { transition: none !important; animation: none !important; }

  /* ============ tooltip ============ */
  #tip {
    position: fixed; z-index: 70; pointer-events: none; max-width: 380px;
    background: var(--panel2); border-radius: 8px;
    border: 1px solid color-mix(in srgb, var(--tb, var(--honey)) 55%, transparent);
    padding: 9px 12px; transform: translateY(-50%);
    opacity: 0; transition: opacity 0.18s;
    box-shadow: 0 8px 28px rgba(10, 6, 4, 0.55);
  }
  #tip.vis { opacity: 1; }
  #tip.flip { transform: translate(-100%, -50%); }
  #tip.red { --tb: var(--red); }
  #tip .t1 { font: 500 12px var(--mono); color: var(--th, var(--bone)); white-space: nowrap; }
  #tip.red .t1 { color: var(--red-hi); }
  #tip .t2 { font: 400 10px var(--mono); color: var(--ink2); letter-spacing: 0.05em; margin-top: 3px; white-space: nowrap; }

  /* ============ mini-map ============ */
  #mm {
    position: fixed; right: 22px; bottom: 22px; z-index: 55;
    background: rgba(41, 41, 41, 0.9); border: 1px solid var(--line); border-radius: 8px;
    padding: 10px 12px 8px;
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  }
  #mm svg { display: block; }
  .mmb { fill: none; stroke: #453527; stroke-width: 1.5; stroke-linecap: round; transition: stroke 0.35s; }
  .mmd { fill: #453527; transition: fill 0.35s; }
  #mm[data-ch="hero"] .mmb-hero, #mm[data-ch="edu"] .mmb-edu,
  #mm[data-ch="freelance"] .mmb-freelance, #mm[data-ch="edi"] .mmb-edi,
  #mm[data-ch="rpa"] .mmb-rpa, #mm[data-ch="elisa"] .mmb-elisa,
  #mm[data-ch="prj"] .mmb-prj path,
  #mm[data-ch="merge"] .mmb-elisa, #mm[data-ch="merge"] .mmb-rest { stroke: var(--tang); }
  #mm[data-ch="hero"] .mmd-hero, #mm[data-ch="edu"] .mmd-edu { fill: var(--tang); }
  #mmh circle { fill: var(--tang); }
  #mmh { transition: transform 0.5s var(--ease); }
  #mml { font: 500 9.5px var(--mono); color: var(--ink3); letter-spacing: 0.05em; margin-top: 6px; max-width: 122px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  @media (max-width: 900px) { #mm { display: none; } }

  /* ============ hero content ============ */
  .kick { font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; color: var(--ink2); }
  .kick .am { color: var(--tang); }
  .kick .cur { display: inline-block; width: 8px; height: 15px; background: var(--tang); vertical-align: -2px; margin-left: 7px; animation: beat 1.3s steps(2, start) infinite; }
  h1 { font-size: clamp(60px, 7vw, 102px); line-height: 0.96; letter-spacing: -0.045em; font-weight: 750; margin: 20px 0 18px; }
  .role { font-size: 19px; color: var(--ink2); font-weight: 500; letter-spacing: -0.01em; }
  .role .nw { white-space: nowrap; }
  .role em { font-style: normal; color: var(--tang-hi); }
  .bio { max-width: 620px; color: var(--ink3); font-size: 14.5px; margin-top: 18px; }
  .bio p + p { margin-top: 12px; }
  .author { display: flex; align-items: center; gap: 18px; margin-top: 32px; }
  .author img { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; border: 2.5px solid var(--tang-soft); box-shadow: 0 0 0 5px var(--tang-dim); }
  .author .an { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
  .author .an span { display: block; font-family: var(--mono); font-size: 10.5px; color: var(--ink3); letter-spacing: 0.06em; margin-top: 2px; font-weight: 400; }
  .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
  .chips a {
    font-family: var(--mono); font-size: 11px; letter-spacing: 0.05em; color: var(--ink2);
    border: 1px solid var(--line2); border-radius: 8px; padding: 6px 12px;
    transition: color 0.25s, border-color 0.25s, background 0.25s, transform 0.25s;
  }
  .chips a:hover { color: var(--honey-hi); border-color: var(--honey-soft); background: var(--honey-dim); transform: translateY(-1px); }
  .hint {
    display: flex; align-items: center; gap: 10px; color: var(--ink3);
    font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
    margin-top: 9vh;
  }
  .hint svg { animation: nudge 1.8s ease-in-out infinite; }
  @keyframes nudge { 0%, 100% { transform: translateY(-2px); opacity: 0.5; } 50% { transform: translateY(3px); opacity: 1; } }

  /* ============ projects rows ============ */
  .prj-head { margin-bottom: 7vh; }
  .prows { margin-left: 40%; }
  .prow { min-height: 36vh; max-width: 620px; display: flex; flex-direction: column; justify-content: center; padding: 30px 0; }
  .pk { font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; color: var(--umber-hi); font-weight: 600; }
  .tagchip {
    display: inline-block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em;
    color: var(--honey-hi); border: 1px solid var(--honey-soft); background: var(--honey-dim);
    border-radius: 99px; padding: 2px 10px; margin-left: 10px; font-weight: 400;
  }
  .prow h3 { font-size: clamp(24px, 2.2vw, 30px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.2; margin-top: 10px; }
  .pdesc { color: var(--ink3); font-size: 14px; margin-top: 10px; max-width: 52ch; }
  .tech { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
  .tech span {
    font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.04em; color: var(--ink2);
    border: 1px solid var(--line); background: rgba(247, 241, 255, 0.025);
    border-radius: 6px; padding: 4px 9px; transition: border-color 0.25s, color 0.25s;
  }
  .tech span:hover { border-color: var(--honey-soft); color: var(--honey-hi); }
  .plinks { display: flex; gap: 8px; margin-top: 14px; }
  .plinks a {
    font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; color: var(--honey-hi);
    border: 1px solid var(--honey-soft); border-radius: 6px; padding: 4px 11px;
    transition: background 0.25s, color 0.25s;
  }
  .plinks a:hover { background: var(--honey); color: var(--dark); }

  /* ============ finale ============ */
  .f-cmd { font-family: var(--mono); font-size: 14px; letter-spacing: 0.03em; color: var(--ink2); margin: 18px 0 8px; }
  .f-cmd .am { color: var(--tang); }
  .f-cmd .dim { color: var(--ink3); }
  .f-note { font-family: var(--mono); font-size: 11px; color: var(--ink3); letter-spacing: 0.05em; margin-bottom: 26px; }
  .bigmail {
    display: inline-block; font-size: clamp(50px, 6vw, 88px); font-weight: 750; letter-spacing: -0.045em;
    line-height: 1.05; padding: 0 8px; margin-left: -8px;
    background-image: linear-gradient(var(--tang), var(--tang));
    background-repeat: no-repeat; background-size: 100% 0%; background-position: 0 100%;
    transition: background-size 0.4s var(--ease), color 0.3s;
  }
  .bigmail:hover, .bigmail:focus-visible { background-size: 100% 100%; color: var(--dark); outline: none; }
  .f-links { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em; color: var(--ink3); }
  .f-links a { color: var(--ink2); transition: color 0.25s; }
  .f-links a:hover { color: var(--tang-hi); }
  .f-links .grow { flex: 1; }
  .f-sign { margin-top: 38px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; color: var(--ink3); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
  .f-sign .sb { color: var(--ink2); }

  @media (max-width: 1180px) {
    .ch-in { width: 62%; }
    .prows { margin-left: 42%; }
  }
  @media (min-width: 861px) and (max-width: 960px) {
    .desc2 { max-width: 44ch; }
    .ch-fin .ch-in { margin-left: 0; padding-left: calc(5vw + 28px); }
  }
  @media (max-width: 860px) {
    .role { font-size: clamp(15px, 4.9vw, 19px); }
    .ch-in { width: 100%; padding: 90px 24px 90px calc(5vw + 48px); }
    .ch-hero .ch-in { padding: 110px 24px 60px calc(5vw + 48px); }
    .ch-prj .ch-in { padding: 12vh 24px 8vh calc(5vw + 48px); }
    .prows { margin-left: 0; }
    .ch-fin .ch-in { padding: 90px 24px 90px calc(5vw + 24px); }
    .chp2:not(.dashp):not(.keep) { display: none; }
    .lb { font-size: 13px; }
    .lb2 { font-size: 11.5px; }
    .prow { margin-bottom: 140px; }
    #mm { display: none; }
  }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .hint { display: none; }
    .kick .cur { animation: none; }
    .js .ch-in { opacity: 1; transform: none; }
    .chips a:hover { transform: none; }
  }