/* ==========================================================================
   samuelwesleymondal.com — site.css
   Plain CSS, no build step. Order: fonts → tokens → base → components in
   page order → dialogs → utilities → motion → print.
   ========================================================================== */

/* ---------- Fonts (self-hosted, latin subset, variable weight) ---------- */
@font-face{font-family:"Space Grotesk";src:url(../fonts/space-grotesk-latin.woff2) format("woff2");font-weight:400 700;font-display:swap;}
@font-face{font-family:"Inter";src:url(../fonts/inter-latin.woff2) format("woff2");font-weight:400 700;font-display:swap;}
@font-face{font-family:"JetBrains Mono";src:url(../fonts/jetbrains-mono-latin.woff2) format("woff2");font-weight:400 600;font-display:swap;}

/* ---------- Tokens ---------- */
:root{
  --bg:#0a0a0b;
  --bg-2:#101012;
  --surface:#151518;
  --surface-2:#1b1b1f;
  --line:#26262b;
  --line-soft:#1c1c20;
  --fg:#f4f2ef;
  --fg-2:#b5b2ad;
  --muted:#8a857f;
  --accent:#e2703a;
  --accent-2:#f0874f;
  --accent-dim:#a8522a;
  --accent-ink:#130d09;
  --accent-soft:rgba(226,112,58,.12);
  --glass:rgba(16,16,18,.72);
  --scrim:rgba(5,5,6,.74);
  --shadow:0 30px 80px -24px rgba(0,0,0,.7);

  /* flow-visualisation ramp (speed relative to freestream) */
  --flow-slow:#5f86a8;
  --flow-mid:#6e6a64;
  --flow-fast:#e2703a;
  --flow-hot:#ffc08f;

  --display:"Space Grotesk",ui-sans-serif,system-ui,sans-serif;
  --text:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --gutter:clamp(20px,5vw,72px);
  --maxw:1320px;
  --r:6px;
  --r-lg:12px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#f4f1ec;
  --bg-2:#ece8e1;
  --surface:#fbfaf8;
  --surface-2:#f1ede7;
  --line:#d9d3c9;
  --line-soft:#e4dfd7;
  --fg:#161412;
  --fg-2:#46423c;
  --muted:#6c665e;
  --accent:#a94a18;
  --accent-2:#8f3d12;
  --accent-dim:#d98a5f;
  --accent-ink:#ffffff;
  --accent-soft:rgba(169,74,24,.09);
  --glass:rgba(251,250,248,.78);
  --scrim:rgba(40,36,32,.45);
  --shadow:0 30px 80px -30px rgba(40,30,20,.35);
  --flow-slow:#3f6d96;
  --flow-mid:#a8a298;
  --flow-fast:#c4561e;
  --flow-hot:#7a2c0b;
  color-scheme:light;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);scrollbar-gutter:stable;}
html:has(dialog[open]:modal){overflow:hidden;}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:400 16px/1.65 var(--text);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:clip;
  transition:background-color .35s ease,color .35s ease;
}
img,svg,canvas{display:block;max-width:100%;}
img{height:auto;}
a{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{font-family:var(--display);font-weight:500;margin:0;letter-spacing:-.025em;line-height:1.08;text-wrap:balance;}
p{margin:0 0 1em;text-wrap:pretty;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
dl,dd{margin:0;}
::selection{background:var(--accent);color:var(--accent-ink);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}
sub,sup{font-size:.68em;line-height:0;}

/* film grain — stops large dark fields banding */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.022;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="light"] body::after{opacity:.035;}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);}
.mono,.label{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);}
.accent{color:var(--accent);}
.sr-only{position:absolute !important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.skip{position:fixed;left:16px;top:-60px;z-index:200;background:var(--accent);color:var(--accent-ink);padding:10px 16px;border-radius:var(--r);font:600 13px var(--text);text-decoration:none;transition:top .2s;}
.skip:focus{top:12px;}

/* ---------- Buttons, chips, kbd ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font:500 11px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;text-decoration:none;white-space:nowrap;
  padding:15px 20px;border:1px solid var(--line);border-radius:var(--r);
  color:var(--fg);background:transparent;
  transition:background-color .25s,border-color .25s,color .25s,transform .25s var(--ease);
}
.btn:hover{border-color:var(--fg-2);background:var(--surface);transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);}
.btn.primary:hover{background:var(--accent-2);border-color:var(--accent-2);}
.btn.ghost{border-color:transparent;}
.btn.ghost:hover{border-color:var(--line);}
.btn-sm{padding:11px 14px;}
.btn svg{width:14px;height:14px;flex:none;}

.icon-btn{
  display:inline-grid;place-items:center;width:38px;height:38px;flex:none;
  border:1px solid var(--line);border-radius:9px;background:transparent;color:var(--fg-2);
  transition:color .2s,border-color .2s,background-color .2s;
}
.icon-btn:hover{color:var(--fg);border-color:var(--fg-2);background:var(--surface);}
.icon-btn svg{width:16px;height:16px;}
.icon-btn.sm{width:30px;height:30px;border-radius:7px;}
.icon-btn.sm svg{width:13px;height:13px;}

.kbd{display:inline-block;font:500 10px/1 var(--mono);letter-spacing:.04em;color:var(--muted);border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:3px 6px;background:var(--bg-2);}

.chip{
  display:inline-flex;align-items:center;gap:8px;
  font:500 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;
  padding:10px 14px;border:1px solid var(--line);border-radius:100px;background:transparent;color:var(--fg-2);
  transition:background-color .2s,color .2s,border-color .2s;
}
.chip:hover{border-color:var(--fg-2);color:var(--fg);}
.chip[aria-pressed="true"]{background:var(--fg);border-color:var(--fg);color:var(--bg);}
.chip .n{opacity:.55;}

.tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;}
.tags li{font:500 10px/1.25 var(--mono);letter-spacing:.07em;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:4px 8px;}
.sym{text-transform:none;letter-spacing:0;font-family:var(--text);}

.kind{
  display:inline-block;font:500 10px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;
  color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 38%,transparent);border-radius:100px;padding:5px 10px;
}
.period{font:500 10.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}

/* ---------- Scroll progress + nav ---------- */
.progress{position:fixed;inset:0 0 auto;height:2px;z-index:60;pointer-events:none;}
.progress span{display:block;height:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(0);}

.nav{position:fixed;inset:0 0 auto;z-index:50;border-bottom:1px solid transparent;transition:background-color .3s,border-color .3s;}
.nav.stuck{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line-soft);
}
.nav-in{max-width:var(--maxw);margin-inline:auto;padding:14px var(--gutter);display:flex;align-items:center;gap:28px;height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:600 14px/1 var(--display);letter-spacing:.02em;white-space:nowrap;}
.brand-mark{width:30px;height:30px;border:1px solid var(--line);border-radius:8px;background:var(--bg-2);padding:3px;}
.brand b{color:var(--accent);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:26px;margin-inline:auto;}
.nav-links a{
  position:relative;padding:8px 0;
  font:500 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg-2);text-decoration:none;
  transition:color .2s;
}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);}
.nav-links a:hover,.nav-links a[aria-current="true"]{color:var(--fg);}
.nav-links a:hover::after,.nav-links a[aria-current="true"]::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-links + .nav-actions{margin-left:0;}
.search-btn{
  display:inline-flex;align-items:center;gap:10px;height:38px;padding:0 8px 0 12px;
  border:1px solid var(--line);border-radius:9px;background:transparent;color:var(--muted);
  font:500 12px/1 var(--text);transition:border-color .2s,color .2s,background-color .2s;
}
.search-btn:hover{border-color:var(--fg-2);color:var(--fg);background:var(--surface);}
.search-btn svg{width:15px;height:15px;}
.menu-btn{display:none;}
.theme-ico-sun{display:none;}
:root[data-theme="light"] .theme-ico-sun{display:block;}
:root[data-theme="light"] .theme-ico-moon{display:none;}

@media (max-width:1120px){
  .nav-links{display:none;}
  .menu-btn{display:inline-grid;}
  .nav-actions{margin-left:auto;}
}
@media (max-width:640px){
  .search-btn span,.search-btn .kbd{display:none;}
  .search-btn{width:38px;padding:0;justify-content:center;}
  .nav-cta{display:none;}
}

/* ---------- Mobile menu (dialog) ---------- */
.menu{
  width:100%;height:100%;max-width:100%;max-height:100%;margin:0;padding:0;border:0;
  background:var(--bg);color:var(--fg);
}
.menu[open]{display:flex;flex-direction:column;animation:fade-in .25s ease;}
.menu::backdrop{background:var(--bg);}
.menu-head{display:flex;align-items:center;justify-content:space-between;padding:14px var(--gutter);height:var(--nav-h);border-bottom:1px solid var(--line-soft);}
.menu-links{display:flex;flex-direction:column;padding:12px var(--gutter);flex:1;overflow:auto;}
.menu-links a{
  display:flex;align-items:baseline;gap:18px;padding:16px 0;border-bottom:1px solid var(--line-soft);
  font:500 clamp(1.6rem,7vw,2.4rem)/1.1 var(--display);letter-spacing:-.03em;text-decoration:none;
}
.menu-links a span{font:500 11px/1 var(--mono);letter-spacing:.1em;color:var(--accent);}
.menu-foot{display:flex;flex-wrap:wrap;gap:10px;padding:20px var(--gutter) max(24px,env(safe-area-inset-bottom));border-top:1px solid var(--line-soft);}

/* ---------- Hero ---------- */
.hero{
  position:relative;isolation:isolate;overflow:hidden;
  min-height:max(760px,100svh);display:flex;align-items:center;
  padding:calc(var(--nav-h) + 48px) 0 56px;
}
.hero::before{
  content:"";position:absolute;z-index:-2;top:-20%;right:-12%;width:75vw;height:75vw;max-width:1000px;max-height:1000px;
  background:radial-gradient(circle,color-mix(in srgb,var(--accent) 11%,transparent) 0%,transparent 62%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;z-index:-3;inset:0;pointer-events:none;
  background:
    linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/100% 56px,
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/56px 100%;
  opacity:.45;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 70% 45%,#000 20%,transparent 75%);
  mask-image:radial-gradient(ellipse 70% 60% at 70% 45%,#000 20%,transparent 75%);
}
.hero-field{
  position:absolute;inset:0;z-index:-1;
  -webkit-mask-image:linear-gradient(90deg,transparent 18%,rgba(0,0,0,.35) 38%,#000 58%);
  mask-image:linear-gradient(90deg,transparent 18%,rgba(0,0,0,.35) 38%,#000 58%);
  opacity:0;transition:opacity 1.2s ease .2s;
}
.hero-field.ready{opacity:1;}
.hero-field canvas{width:100%;height:100%;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;width:100%;}
.hero-copy{max-width:680px;}

.idcard{display:flex;align-items:center;gap:clamp(16px,2vw,24px);margin-bottom:30px;}
.idcard img{width:clamp(104px,10vw,136px);height:clamp(104px,10vw,136px);border-radius:50%;object-fit:cover;object-position:50% 18%;border:2px solid var(--line);box-shadow:0 0 0 5px color-mix(in srgb,var(--accent) 14%,transparent);}
.idcard-role{font:500 clamp(20px,2vw,26px)/1.15 var(--display);letter-spacing:-.02em;margin:0 0 8px;}
.idcard .mono{font-size:clamp(11px,1vw,13px);margin:0;}

.status{
  display:inline-flex;align-items:center;gap:12px;margin:0 0 30px;padding:11px 20px 11px 15px;
  border:1px solid var(--line);border-radius:100px;background:color-mix(in srgb,var(--bg-2) 70%,transparent);
  font:500 clamp(11.5px,1vw,13px)/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg-2);
}
.dot{width:9px;height:9px;border-radius:50%;background:#3ecf8e;flex:none;box-shadow:0 0 0 0 rgba(62,207,142,.5);animation:pulse 2.6s infinite;}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(62,207,142,0);}100%{box-shadow:0 0 0 0 rgba(62,207,142,0);}}

h1.name{font-size:clamp(3rem,7.4vw,6.9rem);font-weight:500;letter-spacing:-.045em;line-height:.93;margin-bottom:28px;}
h1.name span{display:block;color:var(--fg-2);}
.hero-lede{font:400 clamp(1.2rem,1.9vw,1.55rem)/1.45 var(--display);letter-spacing:-.01em;max-width:30ch;margin-bottom:18px;}
.hero-lede em{font-style:normal;color:var(--accent);}
.hero-sub{color:var(--fg-2);max-width:54ch;font-size:1rem;margin-bottom:34px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;}

/* instrument panel */
.hud{
  justify-self:end;align-self:end;width:min(100%,370px);position:relative;z-index:1;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);padding:16px 18px 14px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow);
}
.hud-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;}
.hud-head .mono{font-size:10px;margin:0;display:flex;align-items:center;gap:8px;color:var(--fg-2);}
.live{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:blink 1.6s infinite;}
.hud.paused .live{animation:none;opacity:.35;}
@keyframes blink{50%{opacity:.25;}}
.hud-tools{display:flex;gap:6px;}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;}
.seg button{border:0;background:transparent;color:var(--muted);font:500 9.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:0 9px;height:28px;}
.seg button[aria-pressed="true"]{background:var(--surface-2);color:var(--fg);}
.hud-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px;}
.hud-row .mono{font-size:10px;}
.hud-row output{font:500 15px/1 var(--mono);color:var(--accent);}
.hud-read{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:8px;overflow:hidden;margin:14px 0 12px;}
.hud-read div{background:var(--bg-2);padding:9px 10px;}
.hud-read dt{font:500 10px/1 var(--mono);letter-spacing:.08em;color:var(--muted);margin-bottom:6px;}
.hud-read dd{font:500 17px/1 var(--mono);color:var(--fg);font-variant-numeric:tabular-nums;}
.cp-plot{width:100%;height:auto;margin-bottom:10px;}
.cp-plot .ax{stroke:var(--line);stroke-width:1;fill:none;}
.cp-plot .zero{stroke:var(--line);stroke-dasharray:3 4;}
.cp-plot .up{stroke:var(--accent);stroke-width:1.6;fill:none;stroke-linejoin:round;}
.cp-plot .lo{stroke:var(--flow-slow);stroke-width:1.4;fill:none;stroke-linejoin:round;}
.cp-plot text{font:500 9px var(--mono);fill:var(--muted);letter-spacing:.04em;}
.cp-legend{display:flex;gap:14px;margin:-2px 0 10px;font:500 9.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}
.cp-legend i{display:inline-block;width:12px;height:2px;vertical-align:middle;margin-right:6px;background:var(--accent);}
.cp-legend i.lo{background:var(--flow-slow);}
.hud-note{font-size:12px;line-height:1.5;color:var(--muted);margin:0;min-height:4.5em;}
.hud-note.warn{color:var(--accent);}

/* range input */
input[type="range"]{-webkit-appearance:none;appearance:none;width:100%;height:22px;background:transparent;margin:0;}
input[type="range"]::-webkit-slider-runnable-track{height:3px;border-radius:3px;background:linear-gradient(90deg,var(--accent) var(--fill,50%),var(--line) var(--fill,50%));}
input[type="range"]::-moz-range-track{height:3px;border-radius:3px;background:var(--line);}
input[type="range"]::-moz-range-progress{height:3px;border-radius:3px;background:var(--accent);}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;margin-top:-6.5px;border-radius:50%;background:var(--fg);border:3px solid var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}
input[type="range"]::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:var(--fg);border:3px solid var(--accent);}

.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font:500 9.5px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted);text-decoration:none;}
.scroll-cue i{width:1px;height:34px;background:linear-gradient(var(--muted),transparent);animation:cue 2.2s var(--ease) infinite;transform-origin:top;}
@keyframes cue{0%{transform:scaleY(0);}50%{transform:scaleY(1);}100%{transform:scaleY(1);opacity:0;}}

@media (max-width:980px){
  .hero{display:block;min-height:0;padding-top:calc(var(--nav-h) + 36px);padding-bottom:40px;}
  .hero-grid{grid-template-columns:1fr;gap:0;}
  .hero-field{position:relative;inset:auto;height:clamp(260px,62vw,420px);margin:36px calc(var(--gutter) * -1) 0;-webkit-mask-image:none;mask-image:none;z-index:0;}
  .hud{justify-self:stretch;width:100%;margin-top:-8px;}
  .scroll-cue{display:none;}
  .hero::after{-webkit-mask-image:radial-gradient(ellipse 90% 40% at 50% 62%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse 90% 40% at 50% 62%,#000 20%,transparent 75%);}
}

/* ---------- Proof strip ---------- */
.proof{border-block:1px solid var(--line);background:var(--bg-2);}
.proof-list{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.proof-list li{padding:30px 28px;border-left:1px solid var(--line-soft);}
.proof-list li:first-child{border-left:0;padding-left:0;}
.proof-list strong{display:block;font:500 clamp(1.9rem,3.3vw,2.7rem)/1 var(--display);letter-spacing:-.035em;margin-bottom:12px;}
.proof-list strong em{font-style:normal;color:var(--accent);}
.proof-list span{display:block;font-size:.88rem;line-height:1.5;color:var(--fg-2);max-width:30ch;}
@media (max-width:900px){
  .proof-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .proof-list li{padding:24px 18px;border-left:0;border-top:1px solid var(--line-soft);}
  .proof-list li:nth-child(-n+2){border-top:0;}
  .proof-list li:nth-child(odd){padding-left:0;border-right:1px solid var(--line-soft);}
}

/* ---------- Section shell ---------- */
.sec{padding-block:clamp(72px,9vw,128px);}
.sec + .sec{padding-top:clamp(24px,3vw,40px);}
.sec-head{display:flex;align-items:baseline;gap:20px;border-top:1px solid var(--line);padding-top:20px;margin-bottom:clamp(28px,4vw,48px);}
.sec-head .num{font:500 11px/1 var(--mono);letter-spacing:.1em;color:var(--accent);flex:none;}
.sec-head h2{font-size:clamp(1.9rem,4.2vw,3.1rem);letter-spacing:-.035em;}
.sec-head .tail{margin-left:auto;font:500 10px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--muted);white-space:nowrap;}
.sec-intro{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--fg-2);max-width:60ch;margin-bottom:clamp(32px,4vw,52px);}
@media (max-width:640px){.sec-head .tail{display:none;}}

/* ---------- 01 Approach loop ---------- */
.loop{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg);}
.loop-step{position:relative;padding:clamp(24px,3vw,38px);}
.loop-step + .loop-step{border-left:1px solid var(--line);}
.loop-step + .loop-step::before{
  content:"";position:absolute;left:-8px;top:46px;width:15px;height:15px;background:var(--bg);
  border-top:1px solid var(--line);border-right:1px solid var(--line);transform:rotate(45deg);
}
.step-k{font:500 10.5px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;}
.loop-step h3{font-size:1.45rem;margin-bottom:12px;}
.loop-step > p{color:var(--fg-2);font-size:.95rem;}
.evidence-k{margin:24px 0 10px;font-size:10px;}
.evidence{list-style:none;border-top:1px solid var(--line-soft);}
.evidence a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line-soft);
  font-size:.9rem;color:var(--fg);text-decoration:none;transition:color .2s,padding .25s var(--ease);
}
.evidence a svg{width:13px;height:13px;flex:none;color:var(--muted);transition:transform .25s var(--ease),color .2s;}
.evidence a:hover{color:var(--accent);padding-left:4px;}
.evidence a:hover svg{color:var(--accent);transform:translateX(3px);}
.loop-return{position:relative;height:34px;margin:0 16.66% 0;border:1px dashed color-mix(in srgb,var(--accent) 55%,transparent);border-top:0;border-radius:0 0 14px 14px;}
.loop-return::before{content:"";position:absolute;left:-5px;top:-2px;border:5px solid transparent;border-bottom:7px solid var(--accent);border-top:0;}
.loop-return span{position:absolute;left:50%;bottom:-8px;transform:translateX(-50%);background:var(--bg);padding:0 14px;font:500 10px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);white-space:nowrap;}
@media (max-width:900px){
  .loop{grid-template-columns:1fr;}
  .loop-step + .loop-step{border-left:0;border-top:1px solid var(--line);}
  .loop-step + .loop-step::before{left:44px;top:-8px;transform:rotate(135deg);}
  .loop-return{display:none;}
}

/* ---------- 02 Selected work ---------- */
.work-list{display:grid;gap:clamp(18px,2.4vw,28px);}
.work-card{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-2);
  transition:border-color .35s;
}
.work-card:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--line));}
.work-card:nth-child(even) .work-media{order:2;}
.work-media{position:relative;min-height:420px;background:var(--surface);overflow:hidden;}
.work-media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease),filter .6s;filter:saturate(.9);}
.work-card:hover .work-media > img{transform:scale(1.04);filter:saturate(1);}
.work-media .caption{
  position:absolute;left:0;right:0;bottom:0;padding:40px 18px 14px;
  background:linear-gradient(180deg,transparent,rgba(8,8,9,.85));
  font:500 10px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#e6e3df;
}
.work-media.visual{
  display:grid;place-items:center;
  background:
    linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/100% 28px,
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/28px 100%,
    var(--surface);
}
.work-media.visual svg{width:88%;max-width:520px;height:auto;}
.work-no{position:absolute;top:16px;left:18px;font:500 11px/1 var(--mono);letter-spacing:.14em;color:var(--muted);z-index:1;}
.work-media > img ~ .work-no,.work-media .work-no.on-img{color:#f4f2ef;background:rgba(8,8,9,.6);padding:6px 9px;border-radius:100px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);}
.work-body{padding:clamp(24px,3.6vw,48px);display:flex;flex-direction:column;gap:18px;}
.work-body h3{font-size:clamp(1.55rem,2.7vw,2.25rem);letter-spacing:-.03em;}
.work-body h3 a{text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .35s var(--ease);}
.work-body h3 a:hover{background-size:100% 1px;}
.work-body > p{color:var(--fg-2);max-width:58ch;}
.mini-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:8px;overflow:hidden;}
.mini-facts div{background:var(--bg-2);padding:12px 14px;}
.mini-facts dt{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:7px;}
.mini-facts dd{font-size:.88rem;line-height:1.4;color:var(--fg);}
.stages{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.stages li{display:inline-flex;align-items:center;gap:7px;font:500 10px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:6px 10px;border:1px solid var(--line);border-radius:100px;color:var(--muted);}
.stages li::before{content:"";width:6px;height:6px;border-radius:50%;border:1px solid currentColor;}
.stages li.on{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,transparent);background:var(--accent-soft);}
.stages li.on::before{background:currentColor;}
.work-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:auto;padding-top:6px;}
@media (max-width:900px){
  .work-card{grid-template-columns:1fr;}
  .work-card:nth-child(even) .work-media{order:0;}
  .work-media{min-height:0;aspect-ratio:4/3;}
}

/* rotor + method diagrams */
.dia text{font-family:var(--mono);font-size:11px;letter-spacing:.08em;fill:var(--muted);}
.dia .t-acc{fill:var(--accent);}
.dia .t-fg{fill:var(--fg);}
.dia .ln{stroke:var(--line);fill:none;}
.dia .ln-2{stroke:var(--fg-2);fill:none;}
.dia .acc{stroke:var(--accent);fill:none;}
.dia .blade{fill:var(--surface-2);stroke:var(--accent);stroke-width:1.6;}
.dia .box{fill:var(--bg-2);stroke:var(--line);}
.dia .box-acc{fill:var(--accent-soft);stroke:var(--accent);}
.spin{transform-box:fill-box;transform-origin:50% 50%;animation:spin 14s linear infinite;}
@keyframes spin{to{transform:rotate(-360deg);}}

/* ---------- 03 Project index ---------- */
.proj-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;}
.filters{display:flex;flex-wrap:wrap;gap:8px;}
.proj-tools{display:flex;align-items:center;gap:14px;}
.proj-tools .mono{font-size:10px;margin:0;}
.proj-grid{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,290px),1fr));gap:14px;}
.proj{
  position:relative;display:flex;flex-direction:column;gap:12px;padding:22px 22px 20px;
  border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);
  transition:border-color .25s,transform .35s var(--ease),background-color .25s;
}
.proj:hover{border-color:color-mix(in srgb,var(--fg-2) 50%,var(--line));transform:translateY(-2px);}
.proj.pop{animation:pop .45s var(--ease);}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98);}}
.proj.flash{animation:flash 1.6s ease;}
@keyframes flash{0%,40%{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}}
.proj.featured{background:linear-gradient(180deg,var(--accent-soft),transparent 55%),var(--bg-2);}
.proj .proj-top{display:flex;justify-content:space-between;gap:10px;font:500 10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0;}
.proj .proj-top .cat{color:var(--fg-2);}
.proj h3{font-size:1.18rem;letter-spacing:-.02em;}
.proj > p{color:var(--fg-2);font-size:.92rem;line-height:1.6;margin:0;}
.proj .ctx{display:flex;gap:8px;align-items:flex-start;font-size:.84rem;color:var(--muted);line-height:1.45;margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);}
.proj .ctx svg{width:14px;height:14px;flex:none;margin-top:2px;}
.proj .ctx.won{color:var(--fg);}
.proj .ctx.won svg{color:var(--accent);}
.proj-open{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;margin-top:2px;padding:0;border:0;background:none;
  font:500 10.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);text-decoration:none;
}
.proj-open svg{width:12px;height:12px;transition:transform .25s var(--ease);}
.proj-open:hover svg{transform:translateX(3px);}
.proj-open::after{content:"";position:absolute;inset:0;border-radius:inherit;}
.empty{grid-column:1/-1;padding:40px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--r-lg);}

/* ---------- 04 Experience ---------- */
.gantt-wrap{--y0:2021;--span:6;--now:2026.7;margin:0;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);padding:22px clamp(16px,2.4vw,28px) 18px;overflow-x:auto;}
.gantt-in{min-width:680px;}
.g-axis,.g-row{display:grid;grid-template-columns:230px minmax(0,1fr) 112px;gap:18px;align-items:center;}
.g-axis{margin-bottom:10px;}
.g-years{display:grid;grid-template-columns:repeat(6,1fr);font:500 10px/1 var(--mono);letter-spacing:.1em;color:var(--muted);}
.g-years span{padding-left:6px;border-left:1px solid var(--line);}
.gantt{list-style:none;display:grid;gap:8px;}
.g-label{text-decoration:none;font-size:.9rem;line-height:1.25;color:var(--fg);}
.g-label small{display:block;font:500 9.5px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.g-label:hover{color:var(--accent);}
.g-track{position:relative;height:26px;background:repeating-linear-gradient(90deg,var(--line-soft) 0 1px,transparent 1px calc(100% / 6));}
.g-track::after{content:"";position:absolute;top:-5px;bottom:-5px;left:calc((var(--now) - var(--y0)) / var(--span) * 100%);width:1px;background:var(--accent);opacity:.55;}
.g-bar{
  position:absolute;top:5px;bottom:5px;border-radius:4px;
  left:calc((var(--from) - var(--y0)) / var(--span) * 100%);
  width:calc((var(--to) - var(--from)) / var(--span) * 100%);
  background:var(--fg-2);opacity:.75;transition:opacity .2s,transform .3s var(--ease);transform-origin:left;
}
.g-row[data-kind="edu"] .g-bar{background:transparent;border:1px solid var(--fg-2);}
.g-row.ongoing .g-bar{background:linear-gradient(90deg,var(--accent-dim),var(--accent));opacity:1;}
.g-row[data-kind="edu"].ongoing .g-bar{background:var(--accent-soft);border-color:var(--accent);}
.g-row:hover .g-bar{opacity:1;}
.g-date{font:500 10px/1.3 var(--mono);letter-spacing:.06em;color:var(--muted);text-align:right;}
.g-legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line-soft);font:500 9.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.g-legend i{display:inline-block;width:18px;height:8px;border-radius:2px;margin-right:8px;vertical-align:-1px;background:var(--fg-2);}
.g-legend i.edu{background:transparent;border:1px solid var(--fg-2);}
.g-legend i.on{background:var(--accent);}
.g-legend i.now{width:1px;height:12px;background:var(--accent);}
.js .gantt .g-bar{transform:scaleX(0);}
.js .gantt-wrap.in .g-bar{transform:scaleX(1);transition:transform 1s var(--ease) calc(var(--i,0) * 70ms),opacity .2s;}

.roles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px;}
.role{border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(20px,2.6vw,30px);background:var(--bg);transition:border-color .3s,box-shadow .3s;}
.role:target,.role.flash{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}
.role .period{display:block;margin-bottom:10px;}
.role h3{font-size:1.25rem;margin-bottom:6px;}
.role .org{font:500 11px/1.4 var(--mono);letter-spacing:.08em;color:var(--accent);margin-bottom:14px;}
.bul{list-style:none;display:grid;gap:7px;}
.bul li{position:relative;padding-left:18px;color:var(--fg-2);font-size:.93rem;line-height:1.55;}
.bul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:1px;background:var(--accent);}
.role .proj-open{margin-top:16px;position:static;}
.role .proj-open::after{display:none;}
.more{grid-column:1/-1;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg);}
.more summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px clamp(20px,2.6vw,30px);cursor:pointer;list-style:none;font:500 1.02rem var(--display);}
.more summary::-webkit-details-marker{display:none;}
.more summary svg{width:16px;height:16px;color:var(--muted);transition:transform .3s var(--ease);}
.more[open] summary svg{transform:rotate(45deg);}
.more-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:22px;padding:4px clamp(20px,2.6vw,30px) 26px;}
.more-grid h4{font-size:1rem;margin-bottom:6px;}
.more-grid .period{display:block;margin-bottom:8px;font-size:9.5px;}
.more-grid p{color:var(--fg-2);font-size:.9rem;line-height:1.55;}
@media (max-width:900px){.roles{grid-template-columns:1fr;}}

/* ---------- 05 Recognition ---------- */
.awards{list-style:none;border-top:1px solid var(--line);}
.award{display:grid;grid-template-columns:120px minmax(0,1fr) auto;gap:10px 28px;align-items:baseline;padding:22px 0;border-bottom:1px solid var(--line-soft);transition:background-color .2s;}
.award time{font:500 10.5px/1.3 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.award h3{font-size:1.14rem;letter-spacing:-.015em;margin-bottom:5px;}
.award h3 b{color:var(--accent);font-weight:500;}
.award p{color:var(--fg-2);font-size:.92rem;margin:0;}
.level{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;padding:6px 10px;border:1px solid var(--line);border-radius:100px;color:var(--muted);white-space:nowrap;}
.level.nat{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,transparent);}
@media (max-width:700px){.award{grid-template-columns:1fr auto;}.award time{grid-column:1/-1;}}
.service-h{margin:clamp(40px,5vw,64px) 0 18px;}
.service{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;list-style:none;}
.service li{border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;background:var(--bg-2);display:flex;flex-direction:column;gap:8px;}
.service .kind{align-self:flex-start;}
.service h4{font-size:1.02rem;margin-top:6px;}
.service p{color:var(--fg-2);font-size:.88rem;line-height:1.55;margin:0;}
@media (max-width:1000px){.service{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:560px){.service{grid-template-columns:1fr;}}

/* ---------- 06 Education & toolkit ---------- */
.degrees{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;}
.degree{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr) auto;gap:18px 32px;align-items:start;padding:clamp(22px,3vw,34px);background:var(--bg);transition:background-color .3s;}
.degree + .degree{border-top:1px solid var(--line);}
.degree:hover{background:var(--bg-2);}
.degree h3{font-size:1.25rem;margin-bottom:8px;}
.degree .school{font:500 11px/1.5 var(--mono);letter-spacing:.07em;color:var(--accent);}
.degree .thesis b{display:block;font:500 9.5px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
.degree .thesis{color:var(--fg-2);font-size:.94rem;line-height:1.6;}
.degree .yrs{text-align:right;}
.degree .yrs .period{display:block;margin-bottom:8px;}
.badge-now{font:500 9.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#3ecf8e;}
@media (max-width:860px){.degree{grid-template-columns:1fr;}.degree .yrs{text-align:left;}}

.sub-h{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:clamp(40px,5vw,60px) 0 18px;}
.sub-h h3{font-size:1.35rem;}
.certs{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));gap:12px;}
.cert{display:flex;gap:14px;align-items:flex-start;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;background:var(--bg-2);}
.cert svg{width:22px;height:22px;flex:none;color:var(--accent);margin-top:2px;}
.cert h4{font:500 .98rem/1.3 var(--display);margin-bottom:4px;}
.cert p{font:500 10px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0;}
.skills{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--r-lg);overflow:hidden;}
.skill{background:var(--bg);padding:22px;}
.skill h4{font:500 10.5px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;}
.skill .tags li{font-size:10.5px;color:var(--fg-2);padding:6px 9px;}
.skill .tags li.strong{border-color:color-mix(in srgb,var(--accent) 45%,transparent);color:var(--fg);}

/* ---------- 07 About ---------- */
.about{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(28px,5vw,72px);align-items:start;}
.about-portrait{position:relative;}
.about-portrait img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 20%;border:1px solid var(--line);border-radius:var(--r-lg);}
.about-portrait figcaption{margin-top:10px;font:500 10px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.about-text .big{font:400 clamp(1.3rem,2.3vw,1.9rem)/1.35 var(--display);letter-spacing:-.02em;margin-bottom:26px;color:var(--fg);}
.about-text p{color:var(--fg-2);font-size:1.02rem;}
.about-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--r-lg);overflow:hidden;margin:30px 0;}
.about-facts div{background:var(--bg);padding:16px 18px;}
.about-facts dt{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
.about-facts dd{font-size:.95rem;color:var(--fg);line-height:1.4;}
.interests{list-style:none;display:flex;flex-wrap:wrap;gap:8px;}
.interests li{font-size:.86rem;color:var(--fg-2);border:1px solid var(--line);border-radius:100px;padding:7px 13px;}
@media (max-width:900px){.about{grid-template-columns:1fr;}.about-portrait{max-width:420px;}}

.mosaic{columns:3 240px;column-gap:12px;margin-top:clamp(40px,5vw,64px);}
.mosaic a{position:relative;display:block;margin-bottom:12px;break-inside:avoid;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface);}
.mosaic img{width:100%;transition:transform .9s var(--ease),filter .5s;filter:saturate(.85);}
.mosaic a:hover img{transform:scale(1.04);filter:saturate(1);}
.mosaic a::after{
  content:attr(data-caption);position:absolute;left:0;right:0;bottom:0;padding:34px 12px 10px;
  background:linear-gradient(180deg,transparent,rgba(8,8,9,.88));color:#eeebe7;
  font:500 9.5px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;
  opacity:0;transform:translateY(6px);transition:opacity .3s,transform .3s var(--ease);
}
.mosaic a:hover::after,.mosaic a:focus-visible::after{opacity:1;transform:none;}
@media (hover:none){.mosaic a::after{opacity:1;transform:none;}}

/* ---------- Contact ---------- */
.contact{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(32px,5vw,72px);align-items:start;border-top:1px solid var(--line);padding-top:clamp(48px,6vw,80px);}
.contact h2{font-size:clamp(2.2rem,5.4vw,4.2rem);letter-spacing:-.045em;line-height:.98;margin-bottom:24px;max-width:14ch;}
.contact h2 span{color:var(--fg-2);}
.contact .lede{font-size:clamp(1.02rem,1.5vw,1.18rem);color:var(--fg-2);max-width:50ch;margin-bottom:32px;}
.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.email-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);margin-bottom:26px;}
.email-row a{font:500 clamp(.92rem,1.6vw,1.08rem)/1.3 var(--mono);text-decoration:none;word-break:break-all;flex:1;min-width:0;}
.email-row a:hover{color:var(--accent);}
.email-row + .email-row{margin-top:-16px;}
.email-k{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);min-width:64px;}
.about-links{display:flex;flex-wrap:wrap;gap:8px;}
.about-links .btn{text-transform:none;letter-spacing:.02em;}
.glance{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px;}
.glance dt{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:7px;}
.glance dd{font:500 .98rem/1.35 var(--display);}
.glance dd small{display:block;font:400 .82rem/1.4 var(--text);color:var(--muted);margin-top:3px;}
.form{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);padding:clamp(20px,2.8vw,30px);display:grid;gap:14px;}
.form-h{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:4px;}
.form-h h3{font-size:1.2rem;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:grid;gap:7px;}
.field label{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:12px 14px;color:var(--fg);font-size:.95rem;
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.55;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.form-note{font-size:.8rem;color:var(--muted);margin:0;}
@media (max-width:900px){.contact{grid-template-columns:1fr;}}
@media (max-width:520px){.form-row{grid-template-columns:1fr;}.glance{grid-template-columns:1fr;}}

/* ---------- Footer ---------- */
.foot{border-top:1px solid var(--line-soft);margin-top:clamp(72px,9vw,120px);padding:48px 0 36px;background:var(--bg-2);}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:32px;}
.foot h4{font:500 10px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.foot ul{list-style:none;display:grid;gap:9px;}
.foot a{text-decoration:none;color:var(--fg-2);font-size:.92rem;}
.foot a:hover{color:var(--accent);}
.foot-brand p{color:var(--fg-2);font-size:.92rem;max-width:36ch;margin-top:14px;}
.foot-base{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding-top:22px;border-top:1px solid var(--line-soft);font:500 10px/1.5 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr;}.foot-brand{grid-column:1/-1;}}

/* ---------- Floating: to-top, toast ---------- */
.to-top{position:fixed;right:max(18px,env(safe-area-inset-right));bottom:max(18px,env(safe-area-inset-bottom));z-index:40;width:44px;height:44px;border-radius:50%;background:var(--glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s,transform .3s var(--ease),color .2s,border-color .2s;}
.to-top.show{opacity:1;transform:none;pointer-events:auto;}
.toast{position:fixed;left:50%;bottom:28px;z-index:300;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--fg);color:var(--bg);font:500 13px/1 var(--text);padding:12px 18px;border-radius:100px;box-shadow:var(--shadow);transition:opacity .3s,transform .35s var(--ease);display:flex;align-items:center;gap:8px;}
.toast.show{opacity:1;transform:translate(-50%,0);}
.toast svg{width:15px;height:15px;color:#3ecf8e;}

/* ==========================================================================
   Dialogs
   ========================================================================== */
dialog{color:var(--fg);}
dialog:focus,dialog:focus-visible{outline:none;}
dialog::backdrop{background:var(--scrim);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);}
@keyframes fade-in{from{opacity:0;}}
@keyframes rise-in{from{opacity:0;transform:translateY(22px) scale(.985);}}

/* ---------- Case study ---------- */
.case{
  width:min(1140px,calc(100% - 32px));max-width:none;max-height:calc(100dvh - 32px);margin:auto;padding:0;
  border:1px solid var(--line);border-radius:16px;background:var(--bg);box-shadow:var(--shadow);
  overflow:auto;overscroll-behavior:contain;
}
.case[open]{animation:rise-in .45s var(--ease);}
.case[open]::backdrop{animation:fade-in .3s ease;}
.case-bar{
  position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px 12px clamp(20px,4vw,40px);background:var(--glass);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-soft);
}
.case-bar .mono{margin:0;font-size:10px;}
.case-nav{display:flex;gap:6px;}
.case-body{padding:clamp(24px,5vw,60px) clamp(20px,5vw,60px) clamp(28px,4vw,48px);}
.case-head{max-width:880px;}
.case-head .meta-row{margin-bottom:18px;}
.case-head h2{font-size:clamp(2rem,4.8vw,3.6rem);letter-spacing:-.04em;line-height:1;margin-bottom:18px;}
.case-sub{font:500 11px/1.5 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;}
.case-lede{font-size:clamp(1.05rem,1.6vw,1.24rem);line-height:1.6;color:var(--fg-2);max-width:66ch;}
.case-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-block:1px solid var(--line);margin:clamp(28px,4vw,44px) 0;}
.case-facts div{padding:18px 18px 18px 0;}
.case-facts div + div{padding-left:18px;border-left:1px solid var(--line-soft);}
.case-facts dt{font:500 9.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:9px;}
.case-facts dd{font-size:.92rem;line-height:1.45;}
.case-facts .stages li{padding:5px 8px;font-size:9px;}
@media (max-width:820px){.case-facts{grid-template-columns:1fr 1fr;}.case-facts div:nth-child(3){padding-left:0;border-left:0;}.case-facts div:nth-child(n+3){border-top:1px solid var(--line-soft);}}
.case-visual{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-bottom:clamp(28px,4vw,44px);}
.case-visual.grid-bg{background:linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/100% 28px,linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/28px 100%,var(--surface);display:grid;place-items:center;padding:28px;}
.case-visual.grid-bg svg{width:100%;max-width:640px;}
.case-visual img{width:100%;max-height:560px;object-fit:cover;}
.case-sec{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:14px 44px;padding:clamp(22px,3vw,34px) 0;border-top:1px solid var(--line-soft);}
.case-sec > h3{font:500 10.5px/1.5 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--muted);padding-top:4px;}
.case-sec .body{max-width:70ch;}
.case-sec .body > p{color:var(--fg-2);}
.case-sec .body strong{color:var(--fg);font-weight:500;}
.obj{list-style:none;display:grid;gap:10px;counter-reset:obj;margin-bottom:16px;}
.obj li{counter-increment:obj;display:flex;gap:14px;align-items:baseline;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-2);font:500 1.02rem/1.4 var(--display);}
.obj li::before{content:counter(obj,decimal-leading-zero);font:500 10.5px/1 var(--mono);color:var(--accent);}
.steps3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;list-style:none;}
.steps3 li{border:1px solid var(--line);border-radius:var(--r);padding:16px;background:var(--bg-2);}
.steps3 b{display:block;font:500 10px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--accent);margin-bottom:10px;}
.steps3 p{font-size:.9rem;color:var(--fg-2);margin:0;line-height:1.55;}
@media (max-width:760px){.steps3{grid-template-columns:1fr;}}
.fleet{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;list-style:none;}
.fleet li{border:1px solid var(--line);border-radius:var(--r);padding:18px;background:var(--bg-2);}
.fleet h4{font-size:1.1rem;margin-bottom:6px;}
.fleet .period{display:block;margin-bottom:10px;}
.fleet p{font-size:.9rem;color:var(--fg-2);margin:0 0 10px;}
@media (max-width:640px){.fleet{grid-template-columns:1fr;}}
.case-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr));gap:10px;}
.case-gallery a{display:block;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface);}
.case-gallery img{width:100%;aspect-ratio:4/5;object-fit:cover;transition:transform .8s var(--ease);}
.case-gallery a:hover img{transform:scale(1.05);}
.case-gallery a.wide{grid-column:span 2;}
.case-gallery a.wide img{aspect-ratio:16/10;}
.case-note{font-size:.85rem;color:var(--muted);border-left:2px solid var(--accent-dim);padding:4px 0 4px 14px;margin-top:18px;}
.case-foot{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:clamp(28px,4vw,44px);}
.case-foot button{display:flex;flex-direction:column;gap:8px;text-align:left;padding:20px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);transition:border-color .2s,background-color .2s;}
.case-foot button:hover{border-color:var(--accent);}
.case-foot button:last-child{text-align:right;align-items:flex-end;}
.case-foot .mono{font-size:10px;}
.case-foot strong{font:500 1.05rem/1.3 var(--display);}
.case-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:14px;padding:22px;border:1px dashed var(--line);border-radius:var(--r-lg);}
.case-cta p{margin:0;color:var(--fg-2);}
@media (max-width:720px){
  .case{width:100%;max-width:100%;height:100dvh;max-height:100dvh;border:0;border-radius:0;}
  .case-sec{grid-template-columns:1fr;}
  .case-gallery a.wide{grid-column:auto;}
}

/* VAWT angle-of-attack figure */
.aoa{margin:0;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);padding:clamp(16px,2.4vw,24px);}
.aoa-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-bottom:12px;}
.aoa-top label{font:500 10px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.aoa-top input{flex:1;min-width:160px;max-width:320px;}
.aoa-top output{font:500 15px/1 var(--mono);color:var(--accent);min-width:3ch;}
.aoa svg{width:100%;height:auto;touch-action:pan-y;}
.aoa .gl{stroke:var(--line-soft);}
.aoa .axl{stroke:var(--line);}
.aoa .band{fill:var(--accent-soft);}
.aoa .curve{stroke:var(--accent);stroke-width:2;fill:none;}
.aoa .wr{stroke:var(--flow-slow);stroke-width:1.4;fill:none;stroke-dasharray:4 4;}
.aoa text{font:500 10px var(--mono);fill:var(--muted);}
.aoa .hair{stroke:var(--fg-2);stroke-dasharray:2 3;}
.aoa .pt{fill:var(--accent);stroke:var(--bg-2);stroke-width:2;}
.aoa-read{margin:12px 0 10px;font:500 11px/1.7 var(--mono);letter-spacing:.04em;color:var(--fg-2);}
.aoa-read b{color:var(--fg);font-weight:500;}
.aoa figcaption{font-size:.82rem;color:var(--muted);line-height:1.5;}

/* ---------- Lightbox ---------- */
.lightbox{width:100%;height:100%;max-width:100%;max-height:100%;margin:0;padding:0;border:0;background:rgba(6,6,7,.95);color:#f4f2ef;}
.lightbox[open]{animation:fade-in .25s ease;}
.lightbox::backdrop{background:transparent;}
.lightbox figure{margin:0;height:100%;display:grid;grid-template-rows:minmax(0,1fr) auto;align-items:center;justify-items:center;padding:64px clamp(12px,6vw,88px) 20px;}
.lightbox img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:6px;user-select:none;}
.lightbox figcaption{display:flex;gap:18px;align-items:baseline;justify-content:center;flex-wrap:wrap;padding-top:16px;font:500 11px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#bdb9b3;text-align:center;}
.lb-count{color:#8a857f;}
.lb-btn{position:absolute;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.16);background:rgba(20,20,22,.6);color:#f4f2ef;transition:background-color .2s,border-color .2s;}
.lb-btn:hover{background:rgba(40,40,44,.9);border-color:rgba(255,255,255,.35);}
.lb-btn svg{width:18px;height:18px;}
.lb-close{top:14px;right:14px;}
.lb-prev{left:14px;top:50%;transform:translateY(-50%);}
.lb-next{right:14px;top:50%;transform:translateY(-50%);}
@media (max-width:640px){.lb-prev,.lb-next{top:auto;bottom:12px;transform:none;}}

/* ---------- Command palette ---------- */
.palette{
  width:min(660px,calc(100% - 24px));max-width:none;margin:min(14vh,120px) auto auto;padding:0;
  border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:var(--shadow);overflow:hidden;
}
.palette[open]{animation:rise-in .28s var(--ease);}
.pal-in{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line);}
.pal-in svg{width:18px;height:18px;color:var(--muted);flex:none;}
.pal-in input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:1.05rem;color:var(--fg);}
.pal-in input::placeholder{color:var(--muted);}
.pal-list{list-style:none;margin:0;padding:8px;max-height:min(440px,58vh);overflow:auto;}
.pal-group{font:500 9.5px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--muted);padding:12px 12px 6px;}
.pal-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:9px;cursor:pointer;color:var(--fg-2);}
.pal-item svg{width:16px;height:16px;flex:none;color:var(--muted);}
.pal-item .t{flex:1;min-width:0;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.pal-item .h{font:500 10px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);white-space:nowrap;}
.pal-item[aria-selected="true"]{background:var(--accent-soft);}
.pal-item[aria-selected="true"] svg{color:var(--accent);}
.pal-empty{padding:30px 12px;text-align:center;color:var(--muted);}
.pal-foot{display:flex;gap:16px;flex-wrap:wrap;padding:10px 16px;border-top:1px solid var(--line);font:500 10px/1 var(--mono);letter-spacing:.06em;color:var(--muted);}
.pal-foot span{display:inline-flex;align-items:center;gap:6px;}

/* ==========================================================================
   Motion
   ========================================================================== */
.js .rv{opacity:0;transform:translateY(20px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--d,0) * 80ms);}
.js .rv.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;transition-delay:0s !important;}
  .js .rv{opacity:1;transform:none;}
  .spin{animation:none;}
}

/* no-JS fallback: case studies render inline at the end of the page */
html:not(.js) dialog.case{display:block;position:static;width:auto;max-height:none;margin:40px var(--gutter);box-shadow:none;}
html:not(.js) .case-bar .case-nav,html:not(.js) .hud,html:not(.js) .search-btn,html:not(.js) [data-theme-toggle]{display:none;}

/* ==========================================================================
   Print (the web CV at /cv.html is the print-optimised document)
   ========================================================================== */
@media print{
  :root{--bg:#fff;--bg-2:#fff;--surface:#fff;--fg:#000;--fg-2:#222;--muted:#555;--line:#ccc;--line-soft:#ddd;}
  .nav,.progress,.hero-field,.hud,.scroll-cue,.to-top,.toast,.form,.mosaic,dialog,.filters,.proj-tools,.case-foot{display:none !important;}
  .hero{min-height:0;padding:0 0 24px;}
  .js .rv{opacity:1;transform:none;}
  body::after{display:none;}
  .sec{padding-block:24px;}
  a{text-decoration:none;}
}