/* Layout: a book-launch page in the cover's world — night-blue ground, circuit-green signal,
   Latvian carmine as a thin flag rule. Hero = title + cover; then the build path, recipes,
   contents, author, cooperation. Dark-first, with a cool paper light variant. */
:root{
  --bg:#050c1b; --bg-2:#0a1528; --surface:#0e1b33; --fg:#e8eef7; --muted:#97a6bd;
  --line:#1d2c48; --accent:#65d505; --brand:#65d505; --accent-ink:#04160a; --accent-soft:rgba(101,213,5,.12);
  --fill:#65d505; --fill-ink:#001c34; --em-fg:#65d505; --em-mark:transparent;
  --carmine:#a8343c; --flag-white:#f4f4f2; --glow:rgba(101,213,5,.2); --shadow:rgba(0,0,0,.55);
  --f-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --f-body:"IBM Plex Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --t-xs:.78rem; --t-s:.9rem; --t-m:1.0625rem; --t-l:1.3rem; --t-xl:clamp(1.6rem,3.2vw,2.3rem); --t-hero:clamp(2.5rem,6.2vw,4.6rem);
  --r:14px; --wrap:1160px;
  color-scheme:dark;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#f3f6fa; --bg-2:#e9eef5; --surface:#ffffff; --fg:#001c34; --muted:#4f5d73;
    --line:#d5dde8; --accent:#378000; --accent-ink:#001c34; --accent-soft:rgba(101,213,5,.14); --em-fg:#001c34; --em-mark:rgba(101,213,5,.65);
    --carmine:#9e2f37; --flag-white:#ffffff; --glow:rgba(70,160,20,.14); --shadow:rgba(10,20,40,.22);
    color-scheme:light;
  }
}
:root[data-theme="light"]{
  --bg:#f3f6fa; --bg-2:#e9eef5; --surface:#ffffff; --fg:#001c34; --muted:#4f5d73;
  --line:#d5dde8; --accent:#378000; --accent-ink:#001c34; --accent-soft:rgba(101,213,5,.14); --em-fg:#001c34; --em-mark:rgba(101,213,5,.65);
  --carmine:#9e2f37; --flag-white:#ffffff; --glow:rgba(70,160,20,.14); --shadow:rgba(10,20,40,.22);
  color-scheme:light;
}

*{box-sizing:border-box}
html{color-scheme:dark}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:var(--t-m);line-height:1.6;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
a{color:inherit}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);line-height:1.08;text-wrap:balance;margin:0;letter-spacing:-.015em}
h2{font-size:var(--t-xl);font-weight:700}
h3{font-size:var(--t-l);font-weight:700}
p{margin:0}
.eyebrow{font-family:var(--f-mono);font-size:var(--t-xs);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.muted{color:var(--muted)}
section{padding-block:clamp(56px,8vw,104px)}
.sec-head{display:grid;gap:14px;max-width:62ch;margin-bottom:clamp(28px,4vw,48px)}
.sec-head p{color:var(--muted)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* flag rule — carmine / white / carmine, 2:1:2 */
.flag{display:block;width:120px;height:5px;background:linear-gradient(to bottom,var(--carmine) 0 40%,var(--flag-white) 40% 60%,var(--carmine) 60% 100%);border-radius:1px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-body);font-weight:600;font-size:var(--t-s);padding:13px 20px;border-radius:999px;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,background .15s ease,border-color .15s ease}
.btn-primary{background:var(--fill);color:var(--fill-ink)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--fg);background:transparent}
.btn-ghost:hover{border-color:var(--accent)}
.btn svg{width:16px;height:16px;flex:none}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.brand{font-family:var(--f-display);font-weight:800;font-size:1.05rem;text-decoration:none;letter-spacing:-.01em}
.brand span{color:var(--accent)}
nav.links{display:flex;gap:22px;font-size:var(--t-s)}
nav.links a{text-decoration:none;color:var(--muted)}
nav.links a:hover{color:var(--fg)}
@media (max-width:760px){nav.links{display:none}}

/* hero */
.hero{position:relative;overflow:hidden;padding-block:clamp(40px,6vw,80px) clamp(56px,7vw,96px)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.9}
.hero::after{content:"";position:absolute;right:-10%;top:-20%;width:70%;height:120%;background:radial-gradient(closest-side,var(--glow),transparent);pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(32px,5vw,72px);align-items:center}
.hero-copy{display:grid;gap:22px;min-width:0}
.hero h1{font-size:var(--t-hero);font-weight:800}
.hero h1 .ai{color:var(--em-fg);display:block;width:max-content;font-size:1.35em;line-height:.95;background:linear-gradient(transparent 68%,var(--em-mark) 68%,var(--em-mark) 90%,transparent 90%)}
.hero .lede{font-size:clamp(1.05rem,1.6vw,1.22rem);color:var(--muted);max-width:52ch}
.hero .lede strong{color:var(--fg);font-weight:500}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-family:var(--f-mono);font-size:var(--t-xs);color:var(--muted);padding-top:6px}
.meta b{color:var(--fg);font-weight:500}
.cover-wrap{justify-self:center;width:min(360px,100%);perspective:1400px}
.cover{display:block;width:100%;height:auto;aspect-ratio:620/991;border-radius:4px 10px 10px 4px;box-shadow:0 30px 60px -20px var(--shadow),0 0 0 1px var(--line),-6px 0 0 -2px rgba(0,0,0,.25) inset;transform:rotateY(-12deg) rotateX(2deg);transition:transform .6s ease;animation:rise .9s ease-out both}
.cover-wrap:hover .cover{transform:rotateY(-4deg) rotateX(1deg)}
@keyframes rise{from{transform:translateY(14px) rotateY(-18deg)}to{transform:rotateY(-12deg) rotateX(2deg)}}
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr}
  .cover-wrap{order:-1;width:min(240px,62vw)}
}

/* principle band */
.principle{background:var(--bg-2);border-block:1px solid var(--line);padding-block:clamp(36px,5vw,56px)}
.principle .wrap{display:grid;grid-template-columns:auto minmax(0,1fr);gap:24px;align-items:center}
.principle blockquote{margin:0;font-family:var(--f-display);font-weight:600;font-size:clamp(1.3rem,2.6vw,1.9rem);line-height:1.25;text-wrap:balance;max-width:40ch}
.principle cite{display:block;margin-top:10px;font-style:normal;font-family:var(--f-mono);font-size:var(--t-xs);color:var(--muted);letter-spacing:.06em}
.principle .mark{font-family:var(--f-display);font-size:5rem;line-height:.6;color:var(--accent)}
@media (max-width:560px){.principle .wrap{grid-template-columns:1fr;gap:6px}}

/* audience */
.aud{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
@media (max-width:1000px){.aud{grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr))}}
.aud div{padding:18px 20px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.aud b{display:block;font-family:var(--f-display);font-size:1.08rem;margin-bottom:4px}
.aud span{color:var(--muted);font-size:var(--t-s)}

/* build path */
.path{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:step;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
.path li{counter-increment:step;padding:22px 20px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;gap:6px;position:relative}
.path li:nth-child(4n){border-right:0}
.path li:nth-last-child(-n+4){border-bottom:0}
.path li::before{content:counter(step,decimal-leading-zero);font-family:var(--f-mono);font-size:var(--t-xs);color:var(--accent)}
.path li b{font-family:var(--f-mono);font-weight:500;letter-spacing:.06em;font-size:.95rem}
.path li span{color:var(--muted);font-size:var(--t-s);line-height:1.45}
@media (max-width:820px){
  .path{grid-template-columns:repeat(2,minmax(0,1fr))}
  .path li:nth-child(4n){border-right:1px solid var(--line)}
  .path li:nth-child(2n){border-right:0}
  .path li:nth-last-child(-n+4){border-bottom:1px solid var(--line)}
  .path li:nth-last-child(-n+2){border-bottom:0}
}

/* recipes */
.recipes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:1100px){.recipes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.recipes{grid-template-columns:1fr}}
.recipe{display:grid;grid-template-rows:auto auto 1fr auto;gap:10px;padding:22px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);transition:border-color .2s ease,transform .2s ease}
.recipe:hover{border-color:var(--accent);transform:translateY(-2px)}
.recipe .no{font-family:var(--f-mono);font-size:var(--t-xs);color:var(--accent);letter-spacing:.08em}
.recipe p{color:var(--muted);font-size:var(--t-s)}
.chain{display:flex;flex-wrap:wrap;gap:4px 6px;align-items:center;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.03em;padding-top:12px;border-top:1px dashed var(--line);color:var(--fg)}
.chain i{font-style:normal;color:var(--accent)}
.recipe.more{background:transparent;border-style:dashed;align-content:center}
.recipe.more:hover{transform:none}

/* contents */
.parts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.part{display:grid;grid-template-columns:3.2rem minmax(0,1fr);gap:14px;padding-block:18px;border-top:1px solid var(--line)}
.part .num{font-family:var(--f-display);font-weight:800;font-size:1.5rem;color:var(--accent);line-height:1}
.part b{display:block;font-weight:600;margin-bottom:4px}
.part span{color:var(--muted);font-size:var(--t-s);line-height:1.5}
@media (max-width:760px){.parts{grid-template-columns:1fr}}

/* buy */
.buy{background:var(--bg-2);border-block:1px solid var(--line)}
.buy-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(24px,4vw,56px);align-items:center}
.buy-card{padding:28px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);display:grid;gap:14px}
.buy-card .store{font-family:var(--f-display);font-size:1.5rem;font-weight:700}
.spec{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:var(--t-s);margin:0}
.spec dt{color:var(--muted);font-family:var(--f-mono);font-size:var(--t-xs);letter-spacing:.06em;text-transform:uppercase;padding-top:2px}
.spec dd{margin:0;font-variant-numeric:tabular-nums}
@media (max-width:760px){.buy-grid{grid-template-columns:1fr}}

/* author */
.author-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px)}
.author-side{display:grid;gap:22px;align-content:start}
.monogram{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;font-family:var(--f-display);font-weight:800;font-size:2rem;color:var(--accent);background:var(--accent-soft);border:1px solid var(--line)}
.facts{list-style:none;margin:0;padding:0;display:grid;gap:0}
.facts li{display:grid;grid-template-columns:7.5rem minmax(0,1fr);gap:14px;padding-block:12px;border-top:1px solid var(--line);font-size:var(--t-s)}
.facts li b{font-family:var(--f-display);font-size:1.3rem;color:var(--fg);line-height:1.1}
.facts li span{color:var(--muted)}
.bio{display:grid;gap:16px;max-width:64ch}
.bio p{color:var(--muted)}
.bio p:first-child{color:var(--fg);font-size:1.12rem}
.quote{margin:8px 0 0;padding:20px 22px;border-left:3px solid var(--carmine);background:var(--surface);border-radius:0 var(--r) var(--r) 0;font-family:var(--f-display);font-weight:500;font-size:1.15rem;line-height:1.4}
.quote cite{display:block;margin-top:8px;font-family:var(--f-mono);font-style:normal;font-size:var(--t-xs);color:var(--muted)}
@media (max-width:860px){.author-grid{grid-template-columns:1fr}}

/* cooperation */
.offers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:28px}
.offer{display:grid;grid-template-rows:auto auto 1fr auto;gap:12px;padding:26px;border-radius:var(--r);border:1px solid var(--line);background:var(--surface)}
.offer .ico{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.offer .ico svg{width:22px;height:22px}
.offer ul{margin:0;padding-left:1.1em;color:var(--muted);font-size:var(--t-s);display:grid;gap:4px}
.offer a.write{font-weight:600;font-size:var(--t-s);color:var(--accent);text-decoration:none}
.offer a.write:hover{text-decoration:underline}
@media (max-width:900px){.offers{grid-template-columns:1fr}}
.contact{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.contact-card{display:grid;gap:10px;padding:22px 24px;border-radius:var(--r);border:1px solid var(--accent);background:var(--accent-soft);min-width:0}
.contact-card .label{font-family:var(--f-mono);font-size:var(--t-xs);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.contact-card .value{font-family:var(--f-display);font-weight:700;font-size:clamp(1.05rem,2.2vw,1.35rem);overflow-wrap:anywhere;user-select:all}
.contact-card .row{display:flex;flex-wrap:wrap;gap:10px}
.copied{font-size:var(--t-xs);color:var(--accent);font-family:var(--f-mono);align-self:center}
@media (max-width:700px){.contact{grid-template-columns:1fr}}

footer{border-top:1px solid var(--line);padding-block:28px;font-size:var(--t-s);color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .cover{animation:none;transition:none}
  .recipe,.btn{transition:none}
}

/* ---- shared additions ---- */
.chip{display:inline-flex;align-items:center;gap:6px;width:max-content;font-family:var(--f-mono);font-size:var(--t-xs);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);border:1px solid var(--accent);border-radius:999px;padding:3px 10px;margin-right:8px;vertical-align:middle}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
footer a{color:var(--fg)}

/* ---- tanediq.com home ---- */
.home-hero h1{font-size:clamp(2.2rem,5.4vw,4rem);font-weight:800;max-width:17ch}
.home-hero h1 em{font-style:normal;color:var(--em-fg);background:linear-gradient(transparent 66%,var(--em-mark) 66%,var(--em-mark) 92%,transparent 92%);-webkit-box-decoration-break:clone;box-decoration-break:clone}
.works{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.work{display:grid;grid-template-rows:auto auto 1fr auto;gap:12px;padding:26px;border-radius:var(--r);border:1px solid var(--line);background:var(--surface);text-decoration:none;color:var(--fg);transition:border-color .2s ease,transform .2s ease}
a.work:hover{border-color:var(--accent);transform:translateY(-2px)}
.work p{color:var(--muted);font-size:var(--t-s)}
.work .go{font-weight:600;font-size:var(--t-s);color:var(--accent)}
.work-book{grid-column:1/-1;grid-template-columns:minmax(0,180px) minmax(0,1fr);grid-template-rows:auto;align-items:center;gap:clamp(20px,4vw,48px);padding:clamp(22px,3vw,36px)}
.work-book img{width:100%;height:auto;border-radius:3px 8px 8px 3px;box-shadow:0 18px 40px -16px var(--shadow),0 0 0 1px var(--line)}
.work-book .txt{display:grid;gap:12px;min-width:0}
.work-book h3{font-size:clamp(1.4rem,2.6vw,2rem)}
@media (max-width:900px){.works{grid-template-columns:1fr}}
@media (max-width:560px){.work-book{grid-template-columns:1fr}.work-book img{width:150px}}

/* ---- logo ---- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.brand{display:inline-flex;align-items:center;color:var(--fg)}
.brand .logo{display:block;height:30px;width:auto}
.logo-g{fill:var(--brand)}
.home-hero .hero-grid{grid-template-columns:minmax(0,1fr)}