/* Lost in Transcription: VEZILKA theme (white canvas, navy type, brand red), authored at 1920×1080. */
@font-face{font-family:"Inter";font-style:normal;font-weight:100 900;font-display:block;src:url(../vendor/fonts/inter-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:100 900;font-display:block;src:url(../vendor/fonts/inter-latin-ext-wght-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,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:100 900;font-display:block;src:url(../vendor/fonts/inter-cyrillic-wght-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Inter";font-style:italic;font-weight:100 900;font-display:block;src:url(../vendor/fonts/inter-latin-wght-italic.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:italic;font-weight:100 900;font-display:block;src:url(../vendor/fonts/inter-latin-ext-wght-italic.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,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:italic;font-weight:100 900;font-display:block;src:url(../vendor/fonts/inter-cyrillic-wght-italic.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"JetBrains Mono";font-weight:400;font-display:block;src:url(../vendor/fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2190-21FF,U+2212}
@font-face{font-family:"JetBrains Mono";font-weight:400;font-display:block;src:url(../vendor/fonts/jetbrains-mono-cyrillic-400-normal.woff2) format("woff2");unicode-range:U+0400-045F}
@font-face{font-family:"JetBrains Mono";font-weight:500;font-display:block;src:url(../vendor/fonts/jetbrains-mono-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2190-21FF,U+2212}
@font-face{font-family:"JetBrains Mono";font-weight:500;font-display:block;src:url(../vendor/fonts/jetbrains-mono-cyrillic-500-normal.woff2) format("woff2");unicode-range:U+0400-045F}
@font-face{font-family:"JetBrains Mono";font-weight:700;font-display:block;src:url(../vendor/fonts/jetbrains-mono-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2190-21FF,U+2212}
@font-face{font-family:"JetBrains Mono";font-weight:700;font-display:block;src:url(../vendor/fonts/jetbrains-mono-cyrillic-700-normal.woff2) format("woff2");unicode-range:U+0400-045F}

:root{
  /* VEZILKA brand */
  --navy:#003087; --blue:#1560BD; --red:#C8102E; --ink:#11182A; --slate:#4A5570; --mist:#9AA6BD;
  --panel:#F4F6FB; --ice:#E8F0FE; --line:#D5DCEA; --ghost:#B4BED0; --pink:#FBE4E8; --bg:#FFFFFF;
  /* meaning (same in every slide and in the Gamma GIFs) */
  --audio:#1560BD; --text:#A86F00; --textfill:#E3B341; --dialect:#7A3E9D; --err:#E35D10; --ok:#2E8540; --ours:#C8102E; --base:#B4BED0;
  --sans:"Inter",system-ui,sans-serif; --mono:"JetBrains Mono",ui-monospace,monospace;
}
html,body{background:#fff;color:var(--ink);margin:0;height:100%;overflow:hidden}
.reveal-viewport{background:#fff}
.reveal{font-family:var(--sans);font-size:30px;color:var(--ink);font-feature-settings:"cv11" 1,"ss01" 0}
.reveal .slides{text-align:left}
.reveal .slides>section{width:1920px;height:1080px;padding:0;box-sizing:border-box}
.reveal .slides section .fragment.step{display:none} /* invisible step markers; the timeline does the drawing */
.mono{font-family:var(--mono);font-variant-ligatures:none}

/* ---------- slide scaffold ---------- */
.sl{position:absolute;inset:0;overflow:hidden;background:#fff}
.sl>.chip{position:absolute;left:112px;top:66px;font:600 17px/1 var(--sans);letter-spacing:.09em;text-transform:uppercase;color:var(--red);background:var(--pink);padding:8px 12px;border-radius:4px}
.sl>h2{position:absolute;left:112px;top:104px;right:112px;margin:0;font:700 60px/1.1 var(--sans);letter-spacing:-.018em;color:var(--navy);text-wrap:balance}
.sl>.sub{position:absolute;left:112px;top:186px;right:112px;margin:0;font:400 28px/1.35 var(--sans);color:var(--slate)}
.stage{position:absolute;left:112px;right:112px;top:220px;bottom:90px}
.has-sub>.stage{top:262px}
.has-key>.stage{bottom:200px}
.key{position:absolute;left:112px;right:112px;bottom:70px;box-sizing:border-box;padding:24px 34px;border-radius:8px;background:var(--panel);
  font:italic 500 31px/1.3 var(--sans);color:var(--navy);text-wrap:balance}
.note{font:400 22px/1.4 var(--sans);color:var(--slate)}
.note b{color:var(--ink);font-weight:600}
.c-audio{color:var(--audio)} .c-text{color:var(--text)} .c-dialect{color:var(--dialect)} .c-err{color:var(--err)}
.c-ok{color:var(--ok)} .c-ours{color:var(--ours)} .c-base{color:var(--slate)} .c-dim{color:var(--mist)} .c-navy{color:var(--navy)}
b,strong{font-weight:650}
h3{margin:0 0 18px;font:700 34px/1.2 var(--sans);color:var(--navy)}

/* prose lists */
.pts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:22px}
.pts li{position:relative;padding-left:32px;font:400 28px/1.38 var(--sans);color:var(--slate);max-width:48ch}
.pts li b{color:var(--ink)}
.pts li::before{content:"";position:absolute;left:3px;top:.5em;width:11px;height:11px;transform:rotate(45deg);background:var(--red)}
.pts.tight{gap:16px} .pts.tight li{font-size:26px}

/* code */
pre.code{margin:0;font:400 21px/1.5 var(--mono);color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px 26px;white-space:pre;overflow:hidden}
pre.code .k{color:#7A3E9D} pre.code .s{color:var(--text)} pre.code .c{color:var(--mist)} pre.code .f{color:var(--blue)}

/* stats */
.stat .v{font:700 72px/1 var(--sans);letter-spacing:-.025em;color:var(--navy);font-variant-numeric:tabular-nums}
.stat .v small{font-size:.5em;font-weight:600;margin-left:3px}
.stat .l{font:400 23px/1.35 var(--sans);color:var(--slate);margin-top:10px;max-width:26ch}

svg text{font-family:var(--sans)}
svg .mono, svg text.mono{font-family:var(--mono)}

/* ---------- audio player (stitched waveform) ---------- */
.player{display:flex;align-items:center;gap:22px}
.player button.play{flex:none;width:68px;height:68px;border-radius:50%;border:0;background:var(--navy);cursor:pointer;display:grid;place-items:center;color:#fff;padding:0}
.player button.play:hover{background:var(--blue)}
.player button.play:focus-visible{outline:3px solid var(--red);outline-offset:4px}
.player button.play svg{width:28px;height:28px;fill:currentColor}
.player .wave{flex:1;min-width:0;cursor:pointer}
.player .time{flex:none;font:500 21px/1 var(--mono);color:var(--slate);min-width:110px;text-align:right}
.st-off path{fill:#D5DCEA} .st-on .lv0{fill:var(--navy)} .st-on .lv1{fill:var(--red)}

/* transcripts */
.tx{font:400 28px/1.5 var(--sans);color:var(--ink)}
.tx .w{transition:color .25s, background-color .25s;border-radius:4px;padding:0 1px}
.tx .w.now{background:#DCE8FB}
.w.bad{color:var(--err);font-weight:600} .w.good{color:var(--ok)}
.w.ins{color:var(--err);font-weight:600;text-decoration:underline wavy;text-underline-offset:6px;text-decoration-thickness:1.5px}

/* tabs */
.tabs{display:flex;gap:10px}
.tabs button{font:500 23px/1 var(--sans);color:var(--navy);background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:13px 22px;cursor:pointer}
.tabs button[aria-selected=true]{color:#fff;background:var(--navy);border-color:var(--navy)}
.tabs button:focus-visible{outline:3px solid var(--red);outline-offset:3px}

/* images from the running system */
.shot{border-radius:10px;border:1px solid var(--line);background:#fff;box-shadow:0 10px 34px rgba(0,48,135,.12);display:block;max-width:100%;object-fit:contain}
.cap{font:400 24px/1.4 var(--sans);color:var(--slate)}
.cap b{color:var(--ink)}

/* ---------- global chrome: part rail, counter, controls ---------- */
#rail{position:fixed;left:0;right:0;bottom:0;height:clamp(18px,2.6vh,30px);display:flex;gap:3px;z-index:30}
#rail a{flex:1 1 0;position:relative;display:block;cursor:pointer;text-decoration:none}
#rail a::before{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:#E6EBF4;transition:height .25s,background .25s}
#rail a .fill{position:absolute;left:0;bottom:0;height:4px;width:0;background:var(--navy);transition:width .45s cubic-bezier(.3,.7,.2,1)}
#rail a.cur .fill{background:var(--red)}
#rail a span{position:absolute;left:8px;bottom:9px;font:500 clamp(10px,1.1vh,14px)/1 var(--sans);color:var(--mist);white-space:nowrap;opacity:0;transition:opacity .25s}
#rail:hover a span{opacity:1}
#rail a:hover::before{height:7px;background:var(--ice)}
#counter{position:fixed;right:clamp(10px,1.2vw,24px);bottom:clamp(12px,2vh,26px);font:500 clamp(11px,1.2vh,15px)/1 var(--mono);color:var(--mist);z-index:31;pointer-events:none}
#counter .stepdots{display:inline-flex;gap:4px;margin-right:10px;vertical-align:middle}
#counter .stepdots i{width:6px;height:6px;border-radius:50%;background:#DDE3EE;display:inline-block}
#counter .stepdots i.on{background:var(--red)}
#controls{position:fixed;left:50%;bottom:clamp(30px,4vh,48px);transform:translateX(-50%);display:flex;gap:6px;padding:8px;border-radius:14px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);box-shadow:0 8px 30px rgba(0,48,135,.14);z-index:40;opacity:0;transition:opacity .3s;pointer-events:none}
#controls.show{opacity:1;pointer-events:auto}
#controls button{width:46px;height:42px;border-radius:9px;border:0;background:transparent;color:var(--navy);cursor:pointer;display:grid;place-items:center}
#controls button:hover{background:var(--ice)}
#controls button:focus-visible{outline:2px solid var(--red)}
#controls svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
#help{position:fixed;inset:0;display:none;place-items:center;background:rgba(17,24,42,.45);z-index:50}
#help.show{display:grid}
#help .card{background:#fff;border-radius:16px;padding:34px 42px;color:var(--ink);font:400 19px/1.6 var(--sans);min-width:520px;box-shadow:0 20px 60px rgba(0,0,0,.2)}
#help h3{font-size:26px}
#help kbd{font:500 15px/1 var(--mono);border:1px solid var(--line);border-bottom-width:3px;border-radius:6px;padding:4px 8px;color:var(--navy);background:var(--panel);margin-right:4px}
#help td{padding:5px 18px 5px 0;vertical-align:top}
.reveal .controls,.reveal .progress,.reveal .slide-number{display:none!important}
@media (prefers-reduced-motion:reduce){ #rail a .fill{transition:none} }