/* zmazhenko.de — «технічне креслення»: тонкі лінії, жовтий маркер, синій для дій */
@font-face{font-family:"Bricolage";src:url(/assets/fonts/bricolage.woff2) format("woff2");font-weight:200 800;font-display:swap}
@font-face{font-family:"Plex";src:url(/assets/fonts/plex-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex";src:url(/assets/fonts/plex-400i.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Plex";src:url(/assets/fonts/plex-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Plex";src:url(/assets/fonts/plex-600.woff2) format("woff2");font-weight:600;font-display:swap}

:root{
  --bg:#f4f4f3; --paper:#fff; --ink:#111; --muted:#5e5e5e; --line:#d9d9d7; --line2:#e8e8e6;
  --blue:#d7261e; --blue-ink:#fff; --marker:#d7261e; --marker-soft:#fbe4e2; --green:#2e9d6a; --red:#d7261e;
  --grid:rgba(0,0,0,.045);
  --max:1120px; --r:14px;
  --display:"Bricolage",ui-sans-serif,system-ui,sans-serif;
  --text:"Plex",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#0b0b0b; --paper:#161616; --ink:#f2f2f2; --muted:#a3a3a3; --line:#2e2e2e; --line2:#222;
  --blue:#ff4b3e; --blue-ink:#fff; --marker:#e8332a; --marker-soft:#2a1312; --green:#4cc28c; --red:#ff4b3e;
  --grid:rgba(255,255,255,.04);
}}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.62 var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:12px;z-index:99;background:var(--paper);padding:8px 12px}

/* типографіка */
h1,h2,h3{font-family:var(--display);font-weight:700;letter-spacing:-.025em;margin:0;color:var(--ink);text-wrap:balance}
h1{font-size:clamp(38px,6.2vw,68px);line-height:1.02;letter-spacing:-.035em;font-weight:750}
h2{font-size:clamp(28px,4vw,42px);line-height:1.08}
h3{font-size:21px;line-height:1.25;letter-spacing:-.015em}
p{margin:0 0 14px}
.lead{font-size:clamp(18px,2vw,21px);line-height:1.5;color:var(--muted);max-width:60ch}
.muted{color:var(--muted)}
.small{font-size:14px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--muted);margin-bottom:18px}
.kicker::before{content:"";width:22px;height:2px;background:var(--marker)}
.prose{max-width:68ch}
.prose h2{font-size:clamp(26px,3.2vw,34px);margin:56px 0 14px}
.prose h3{margin:30px 0 8px}
.prose ul,.prose ol{padding-left:22px;margin:0 0 16px}
.prose li{margin-bottom:8px}
.prose li::marker{color:var(--muted)}
mark{background:linear-gradient(transparent 55%,var(--marker) 55%);color:inherit;padding:0 2px}

/* шапка */
.top{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line2)}
.top .wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:700 18px/1 var(--display);letter-spacing:-.02em}
.brand svg{width:28px;height:28px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500;padding:8px 12px;border-radius:8px}
.nav a:hover,.nav a[aria-current]{background:var(--paper)}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;width:42px;height:38px;color:var(--ink);cursor:pointer}
.menu-btn svg{width:20px;height:20px;margin:auto}
@media (max-width:900px){
  .nav{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 12px 14px}
  .nav.open{display:flex}
  .nav a{padding:12px}
  .menu-btn{display:block}
  .top .btn{display:none}
}

/* кнопки */
.btn{display:inline-flex;align-items:center;gap:10px;height:50px;padding:0 22px;border-radius:10px;font:600 16px/1 var(--text);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .12s}
.btn:active{transform:translateY(1px)}
.btn.pri{background:var(--blue);color:var(--blue-ink)}
.btn.pri:hover{filter:brightness(1.08)}
.btn.sec{border-color:var(--line);color:var(--ink);background:var(--paper)}
.btn.sec:hover{border-color:var(--ink)}
.top .btn{height:40px;padding:0 16px;font-size:15px}
.ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}

/* секції */
section{padding:88px 0}
section.tight{padding:56px 0}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:24px 56px;align-items:end;margin-bottom:44px}
.sec-head .lead{margin:0}
@media (max-width:860px){.sec-head{grid-template-columns:1fr}section{padding:64px 0}}

/* герой з кресленням */
.hero{padding:64px 0 72px;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;border-bottom:1px solid var(--line2)}
.hero .wrap{display:grid;grid-template-columns:1.02fr 1fr;gap:40px;align-items:center}
.hero .lead{margin-top:22px}
.hero figure{margin:0}
.hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:34px;font-size:14px;color:var(--muted)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note svg{width:16px;height:16px;color:var(--green)}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}.hero{padding:40px 0 52px}}
.sub-hero .wrap{grid-template-columns:1.15fr .85fr}
@media (max-width:900px){.sub-hero .wrap{grid-template-columns:1fr}.sub-hero figure{max-width:420px}}

/* ілюстрації */
.ill{color:var(--ink);overflow:visible}
.ill .s{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.ill .t{fill:none;stroke:currentColor;stroke-width:1;stroke-linecap:round;opacity:.45}
.ill .d{fill:none;stroke:currentColor;stroke-width:1;stroke-dasharray:3 4;opacity:.55}
.ill .m{fill:var(--marker);stroke:none}
.ill .ms{fill:var(--marker-soft);stroke:none}
.ill .p{fill:var(--paper)}
.ill .b{fill:var(--blue);stroke:none}
.ill .g{fill:var(--green);stroke:none}
.ill text{font:500 13px var(--text);fill:var(--ink)}
.ill .lbl{font:500 12.5px var(--text);fill:var(--muted)}
.ill .num{font:700 12px var(--display);fill:#fff}
figcaption{font-size:13px;color:var(--muted);margin-top:10px;display:flex;gap:8px}
figcaption b{font-weight:600;color:var(--ink)}
@media (prefers-reduced-motion:no-preference){
  .draw .s{stroke-dasharray:var(--len,600);stroke-dashoffset:var(--len,600);animation:draw 1.6s cubic-bezier(.6,.1,.2,1) forwards}
  .draw .lbl,.draw text,.draw .m,.draw .b,.draw .g{opacity:0;animation:fade .5s ease-out 1.2s forwards}
  @keyframes draw{to{stroke-dashoffset:0}}
  @keyframes fade{to{opacity:1}}
}

/* проблеми: рядки з малюнками */
.problems{border-top:1px dashed var(--line)}
.prob{display:grid;grid-template-columns:96px 1fr auto;gap:28px;align-items:center;padding:26px 0;border-bottom:1px dashed var(--line);color:var(--ink);text-decoration:none}
.prob:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.prob .ico{width:96px;height:72px}
.prob p{margin:6px 0 0;color:var(--muted);max-width:62ch}
.prob .go{font-weight:600;color:var(--blue);white-space:nowrap;font-size:15px}
@media (max-width:700px){.prob{grid-template-columns:64px 1fr;gap:16px}.prob .ico{width:64px;height:48px}.prob .go{grid-column:2}}

/* панелі */
.panel{background:var(--paper);border:1px solid var(--line2);border-radius:var(--r);padding:28px}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cols.two{grid-template-columns:repeat(2,1fr)}
@media (max-width:860px){.cols,.cols.two{grid-template-columns:1fr}}

/* кроки (справжня послідовність) */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s;position:relative}
.step{padding:0 22px 0 0;position:relative}
.step .n{width:40px;height:40px;border-radius:50%;border:1.5px solid var(--ink);display:grid;place-items:center;font:700 16px var(--display);background:var(--bg);position:relative;z-index:1;margin-bottom:16px}
.step:first-child .n{background:var(--marker);border-color:var(--marker);color:#fff}
.step::before{content:"";position:absolute;top:20px;left:40px;right:0;border-top:1.5px dashed var(--line)}
.step:last-child::before{display:none}
.step p{color:var(--muted);font-size:16px;margin-top:6px}
@media (max-width:860px){.steps{grid-template-columns:1fr;gap:26px}.step{padding:0 0 0 58px}.step .n{position:absolute;left:0;top:-4px}.step::before{left:20px;top:40px;bottom:-26px;right:auto;border-top:0;border-left:1.5px dashed var(--line)}}

/* список «що робить» з галочками */
.checks{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.checks li{display:grid;grid-template-columns:26px 1fr;gap:10px}
.checks li::before{content:"";width:20px;height:20px;margin-top:3px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/20px no-repeat}

/* «було / стало» */
.vs{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line2);border-radius:var(--r);overflow:hidden;background:var(--paper)}
.vs > div{padding:26px 28px}
.vs > div + div{border-left:1px dashed var(--line);background:linear-gradient(var(--marker-soft),var(--marker-soft)) top/100% 4px no-repeat}
.vs h3{font-size:17px;margin-bottom:12px;font-family:var(--text);font-weight:600;letter-spacing:0}
.vs ul{margin:0;padding-left:20px;color:var(--muted)}
.vs li{margin-bottom:8px}
@media (max-width:700px){.vs{grid-template-columns:1fr}.vs > div + div{border-left:0;border-top:1px dashed var(--line)}}

/* проєкти */
.proj{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;padding:44px 0;border-top:1px dashed var(--line)}
.proj:nth-child(even) .shot{order:2}
.shot{position:relative;padding:14px}
.shot::before,.shot::after{content:"";position:absolute;width:18px;height:18px;border:1.5px solid var(--ink);opacity:.5}
.shot::before{top:0;left:0;border-right:0;border-bottom:0}
.shot::after{bottom:0;right:0;border-left:0;border-top:0}
.shot .frame{border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--paper)}
.shot .bar{height:26px;display:flex;align-items:center;gap:6px;padding:0 10px;border-bottom:1px solid var(--line2)}
.shot .bar i{width:8px;height:8px;border-radius:50%;background:var(--line)}
.shot .bar span{margin-left:8px;font-size:11.5px;color:var(--muted)}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top}
.shot .drawn{aspect-ratio:16/10;display:grid;place-items:center;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:20px 20px}
.shot .drawn svg{width:62%}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.tags span{font-size:13px;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}
@media (max-width:860px){.proj{grid-template-columns:1fr;gap:20px}.proj:nth-child(even) .shot{order:0}}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:20px 0;font-weight:600;font-size:18px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:400 26px/1 var(--display);color:var(--muted);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);margin:-4px 0 20px;max-width:68ch}

/* блок «місце для тулу» */
.tool-slot{border:1.5px dashed var(--line);border-radius:var(--r);padding:34px;display:grid;grid-template-columns:120px 1fr;gap:28px;align-items:center;background:var(--paper)}
.tool-slot .soon{display:inline-block;font-size:13px;font-weight:600;background:var(--marker);color:#fff;padding:3px 10px;border-radius:6px;margin-bottom:10px}
@media (max-width:700px){.tool-slot{grid-template-columns:1fr}}

/* таблиця */
.tbl{width:100%;border-collapse:collapse;font-size:16px;background:var(--paper);border:1px solid var(--line2);border-radius:var(--r);overflow:hidden}
.tbl th,.tbl td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line2);vertical-align:top}
.tbl th{font-size:14px;color:var(--muted);font-weight:600;background:color-mix(in srgb,var(--bg) 60%,var(--paper))}
.tbl tr:last-child td{border-bottom:0}
.tbl-wrap{overflow-x:auto;margin:20px 0}

/* підсумок / примітка */
.note{border-left:3px solid var(--marker);padding:4px 0 4px 18px;margin:24px 0;color:var(--muted)}
.note strong{color:var(--ink)}

/* CTA-смуга */
.cta-band{background:var(--ink);color:var(--bg);border-radius:20px;padding:48px;display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.cta-band h2{color:var(--bg)}
.cta-band p{color:color-mix(in srgb,var(--bg) 75%,transparent);margin:14px 0 0}
.cta-band .btn.pri{background:var(--marker);color:#fff}
.cta-band .btn.sec{background:transparent;color:var(--bg);border-color:color-mix(in srgb,var(--bg) 35%,transparent)}
.cta-band .ctas{justify-content:flex-end;margin:0}
@media (max-width:860px){.cta-band{grid-template-columns:1fr;padding:32px 24px}.cta-band .ctas{justify-content:flex-start}}

/* форма */
form.kf{display:grid;gap:12px}
form.kf label{display:grid;gap:6px;font-size:14px;font-weight:500}
form.kf input,form.kf textarea,form.kf select{font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:13px 14px}
form.kf input:focus,form.kf textarea:focus{outline:2px solid var(--blue);outline-offset:0;border-color:transparent}
form.kf textarea{min-height:140px;resize:vertical}
form.kf .ck{display:flex;grid-template-columns:none;gap:10px;font-weight:400;color:var(--muted);align-items:flex-start}
form.kf .ck input{margin-top:4px}
form.kf .hp{position:absolute;left:-5000px}
.res{font-size:15px;color:var(--muted)}
.res.ok{color:var(--green);font-weight:600}

/* хлібні крихти */
.crumbs{font-size:14px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}

/* футер */
footer{border-top:1px solid var(--line);padding:48px 0 56px;margin-top:40px;font-size:15px}
footer .wrap{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
footer h4{font:600 14px var(--text);margin:0 0 12px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--ink)}
footer .legal{grid-column:1/-1;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:14px;padding-top:24px;border-top:1px dashed var(--line)}
@media (max-width:860px){footer .wrap{grid-template-columns:1fr 1fr}footer .about{grid-column:1/-1}}

/* правки після першого огляду */
.hero .wrap{grid-template-columns:1fr 1.12fr}
.sub-hero .wrap{grid-template-columns:1.15fr .85fr}
@media (max-width:900px){.hero .wrap,.sub-hero .wrap{grid-template-columns:1fr}}
.cols.four{grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.cols.four{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.cols.four{grid-template-columns:1fr}}
.prob .ico{position:relative}
.prob .pin{position:absolute;top:-6px;left:-6px;width:22px;height:22px;border-radius:50%;background:var(--marker);color:#fff;font:700 12px/22px var(--display);text-align:center}
@media (max-width:700px){.prob{align-items:start}.prob .ico{margin-top:4px}}
.prose > :first-child{margin-top:0}
.pilot{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:28px 30px;border-radius:var(--r);background:var(--marker-soft);border:1.5px dashed color-mix(in srgb,var(--marker) 70%,var(--ink))}
.pilot h3{margin:8px 0 8px}.pilot p{margin:0;max-width:64ch}
.pilot .soon{display:inline-block;font-size:13px;font-weight:600;background:var(--marker);color:#fff;padding:3px 10px;border-radius:6px}
@media (max-width:760px){.pilot{grid-template-columns:1fr}}

/* чорно-червоний: галочки чорні, червоний лише для акцентів */
.hero-note svg{color:var(--ink)}
.checks li::before{background-color:var(--ink)}
@media (prefers-color-scheme:dark){.checks li::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}}
.cta-band{background:#111;color:#f2f2f2}
.cta-band h2{color:#fff}.cta-band p{color:rgba(255,255,255,.72)}
.cta-band .btn.sec{color:#fff;border-color:rgba(255,255,255,.35)}
mark{background:linear-gradient(transparent 60%,var(--marker-soft) 60%)}
@media (prefers-color-scheme:dark){.hero-note svg path{stroke:#000}}