/* ============================================================
   Портфоліо — дизайн-система
   Світлий папір + антиква. Роботи здебільшого темні,
   тому фон навмисно світлий: скріншоти читаються як картини.
   ============================================================ */

:root{
  --paper:#F4F1EA;
  --paper-2:#EFEBE2;
  --ink:#14130F;
  --ink-soft:#5C584E;
  --ink-faint:#8B8578;
  --rule:#D9D4C7;
  --accent:#7A3B2E;
  --accent-soft:#A8624F;
  --dark:#131210;

  --serif:'Instrument Serif', Georgia, 'Times New Roman', serif;
  --sans:'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:'JetBrains Mono', ui-monospace, monospace;

  --pad:40px;
  --max:1240px;
  --ease:cubic-bezier(.22,.68,.24,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit}
::selection{background:var(--accent);color:var(--paper)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.only-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------------- header ---------------- */
.site-hd{
  position:sticky;top:0;z-index:80;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--rule);
}
.site-hd__in{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.mark{font-family:var(--serif);font-size:21px;letter-spacing:.005em;text-decoration:none;white-space:nowrap}
.mark em{font-style:italic;color:var(--accent)}
.site-nav{display:flex;gap:26px;font-size:13.5px}
.site-nav a{color:var(--ink-soft);text-decoration:none;position:relative;padding-bottom:2px}
.site-nav a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--ink);transition:right .4s var(--ease)}
.site-nav a:hover::after,.site-nav a[aria-current]::after{right:0}
.site-nav a[aria-current]{color:var(--ink)}
.lang{display:flex;gap:2px;font-size:12px;letter-spacing:.06em;background:none;border:0;cursor:pointer;color:var(--ink-faint);font-family:var(--sans);padding:0}
.lang b{color:var(--ink)}
.burger{display:none;background:none;border:0;cursor:pointer;padding:6px;color:var(--ink)}

/* ---------------- hero ---------------- */
.hero{padding:104px 0 72px;border-bottom:1px solid var(--rule)}
.hero h1{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(44px,7.2vw,104px);line-height:.99;letter-spacing:-.015em;
  margin:0 0 30px;max-width:16ch;
}
.hero h1 em{font-style:italic;color:var(--accent)}
.hero__row{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:end}
.lede{font-size:17.5px;line-height:1.62;color:var(--ink-soft);max-width:47ch;margin:0}
.facts{display:flex;gap:40px;border-top:1px solid var(--rule);padding-top:18px;justify-content:flex-end}
.fact__n{font-family:var(--serif);font-size:38px;line-height:1}
.fact__l{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);margin-top:4px}

/* ---------------- section head ---------------- */
.sec{padding:78px 0 0}
.sec-hd{display:flex;align-items:baseline;justify-content:space-between;gap:20px;
        border-bottom:1px solid var(--rule);padding-bottom:13px;margin-bottom:50px}
.sec-hd h2{font-family:var(--serif);font-weight:400;font-size:31px;margin:0;letter-spacing:-.01em}
.sec-hd__note{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint)}

/* ---------------- work grid (головна) ---------------- */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:60px 46px}
.card{display:block;text-decoration:none;color:inherit;transition:opacity .45s var(--ease)}
.card:nth-child(even){margin-top:62px}
@media (hover:hover){
  .grid:hover .card{opacity:.3}
  .grid:hover .card:hover{opacity:1}
}
.card__thumb{position:relative;overflow:hidden;background:var(--dark);
             border:1px solid var(--rule);border-radius:2px}
.card__thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top center;
                 transition:transform .9s var(--ease)}
.card:hover .card__thumb img{transform:scale(1.04)}
.card__badge{position:absolute;left:11px;top:11px;background:var(--paper);color:var(--ink);
             font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
             padding:4px 9px;border:1px solid var(--rule);border-radius:2px}
.card__meta{display:flex;justify-content:space-between;align-items:baseline;gap:16px;
            margin-top:17px;border-top:1px solid var(--rule);padding-top:11px}
.card__name{font-family:var(--serif);font-size:25px;line-height:1.12}
.card__yr{font-size:11.5px;letter-spacing:.07em;color:var(--ink-faint);white-space:nowrap}
.card__sub{font-size:13.5px;color:var(--ink-faint);margin-top:5px}
.card__desc{font-size:14.5px;line-height:1.55;margin-top:9px;max-width:45ch;color:var(--ink-soft)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:13px}
.tag{font-size:10.5px;letter-spacing:.04em;color:var(--ink-faint);
     border:1px solid var(--rule);border-radius:100px;padding:3px 10px}
.card__more{display:inline-block;margin-top:14px;font-size:12.5px;letter-spacing:.05em;
            text-transform:uppercase;border-bottom:1px solid var(--accent);padding-bottom:2px}

/* склад проєкту на картці */
.card__feats{list-style:none;margin:12px 0 0;padding:0;border-top:1px solid var(--rule)}
.card__feats li{position:relative;font-size:13px;line-height:1.45;color:var(--ink-soft);
                padding:6px 0 6px 15px;border-bottom:1px solid var(--rule)}
.card__feats li::before{content:'';position:absolute;left:0;top:13px;width:5px;height:1px;background:var(--accent)}

/* ---------------- смуга «просування» ---------------- */
.band{padding-top:96px}
.band__grid,.cost__grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start;
                        border-top:1px solid var(--rule);padding-top:34px}
.band__h{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.2vw,52px);
         line-height:1.04;letter-spacing:-.015em;margin:0 0 18px;max-width:15ch}
.deflist{display:grid;gap:0}
.def{border-top:1px solid var(--rule);padding:14px 0;display:grid;grid-template-columns:172px 1fr;gap:20px}
.def:first-child{border-top:0;padding-top:0}
.def b{font-size:14.5px;font-weight:500}
.def span{font-size:14px;line-height:1.55;color:var(--ink-soft)}

/* ---------------- утримання ---------------- */
.cost{padding-top:96px}
.cost__table{border-top:1px solid var(--rule)}
.crow{display:flex;justify-content:space-between;align-items:baseline;gap:20px;
      padding:15px 0;border-bottom:1px solid var(--rule)}
.crow b{font-size:15.5px;font-weight:500}
.crow span{font-size:13.5px;color:var(--ink-faint);text-align:right}
.crow.is-on b{color:var(--accent)}
.crow.is-on span{color:var(--ink)}

.hd-right{display:flex;align-items:center;gap:14px}

/* ---------------- index (сторінка «Всі роботи») ---------------- */
.split{display:grid;grid-template-columns:1fr 540px;gap:52px;align-items:start;padding-bottom:80px}
.idx-hd,.idx-row{display:grid;grid-template-columns:40px 1fr 140px 60px 40px;gap:16px;align-items:center}
.idx-hd{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);
        border-bottom:1px solid var(--rule);padding-bottom:9px}
.idx-row{padding:18px 0;border-bottom:1px solid var(--rule);text-decoration:none;color:inherit;
         transition:padding-left .35s var(--ease);cursor:pointer}
.idx-row:hover,.idx-row.is-on{padding-left:12px}
.idx-row__i{font-family:var(--mono);font-size:11px;color:var(--ink-faint)}
.idx-row__t{font-family:var(--serif);font-size:23px;line-height:1.15}
.idx-row__c{font-size:12.5px;color:var(--ink-faint)}
.idx-row__n,.idx-row__y{font-size:11.5px;color:var(--ink-faint);letter-spacing:.03em}
.idx-row__a{text-align:right;font-size:14px;color:var(--ink-faint);opacity:0;transform:translateX(-6px);
            transition:opacity .3s var(--ease),transform .3s var(--ease)}
.idx-row:hover .idx-row__a,.idx-row.is-on .idx-row__a{opacity:1;transform:none}
.idx-chip{font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);
          border:1px solid var(--rule);border-radius:3px;padding:2px 6px;margin-left:9px;vertical-align:middle;
          font-family:var(--sans)}

.viewer{position:sticky;top:96px}
.viewer__frame{border:1px solid var(--rule);background:#fff;border-radius:4px;overflow:hidden;
               box-shadow:0 26px 60px -34px rgba(20,19,15,.45)}
.viewer__bar{display:flex;gap:6px;align-items:center;padding:9px 12px;
             border-bottom:1px solid var(--rule);background:var(--paper-2)}
.viewer__bar i{width:9px;height:9px;border-radius:50%;background:#CFC9BB;display:block}
.viewer__url{margin-left:10px;font-family:var(--mono);font-size:10.5px;color:var(--ink-faint);
             white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.viewer__frame img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top center}
.viewer__info{margin-top:15px;min-height:88px}
.viewer__info b{display:block;font-family:var(--serif);font-size:22px;font-weight:400;margin-bottom:5px}
.viewer__info p{margin:0;font-size:14px;line-height:1.55;color:var(--ink-soft)}

/* ---------------- case page ---------------- */
.case-hd{padding:88px 0 46px}
.case-kicker{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.case-hd h1{font-family:var(--serif);font-weight:400;font-size:clamp(42px,6.4vw,88px);
            line-height:1;letter-spacing:-.015em;margin:0 0 20px;max-width:15ch}
.case-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
            border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:18px 0;margin-top:34px}
.case-facts dt{font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:5px}
.case-facts dd{margin:0;font-size:14.5px}
.case-shot{margin:44px 0 12px;border:1px solid var(--rule);border-radius:3px;overflow:hidden;background:var(--dark)}
.case-shot img{width:100%;display:block}
.case-cap{font-size:12px;color:var(--ink-faint);margin-bottom:60px}
.case-body{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.case-body h2{font-family:var(--serif);font-weight:400;font-size:29px;margin:0 0 16px;letter-spacing:-.01em}
.case-body p{font-size:16px;line-height:1.66;color:var(--ink-soft);margin:0 0 16px;max-width:52ch}
.steps{margin:64px 0 0;padding:0;list-style:none;counter-reset:s}
.step{display:grid;grid-template-columns:56px 1fr;gap:22px;padding:26px 0;border-top:1px solid var(--rule)}
.step__n{font-family:var(--mono);font-size:11.5px;color:var(--accent);padding-top:6px}
.step h3{font-family:var(--serif);font-weight:400;font-size:24px;margin:0 0 7px;letter-spacing:-.01em}
.step p{margin:0;font-size:15px;line-height:1.6;color:var(--ink-soft);max-width:56ch}
/* галерея екранів застосунку */
.screens{margin:76px 0 0}
.screens__row{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.screen{margin:0}
.screen img{width:100%;border:1px solid var(--rule);border-radius:14px;background:var(--paper-2);
            box-shadow:0 18px 44px -30px rgba(20,19,15,.5)}
.screen figcaption{font-size:12.5px;line-height:1.45;color:var(--ink-faint);margin-top:11px}

.includes{margin:44px 0 0;border-top:1px solid var(--rule);padding-top:20px}
.includes h3{font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 14px;font-weight:500}
.includes ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.includes li{position:relative;font-size:14.5px;line-height:1.5;color:var(--ink);
             padding:10px 0 10px 18px;border-bottom:1px solid var(--rule)}
.includes li::before{content:'';position:absolute;left:0;top:18px;width:7px;height:1px;background:var(--accent)}
.approach{border-left:2px solid var(--rule);padding-left:16px;font-size:15px !important;color:var(--ink-soft)}
.approach b{color:var(--ink);font-weight:500}
.arch{margin:56px 0 0;padding:26px 30px;background:var(--paper-2);border:1px solid var(--rule);border-radius:3px}
.arch h3{font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 15px}
.arch ul{margin:0;padding:0;list-style:none}
.arch li{font-family:var(--mono);font-size:13px;line-height:1.5;color:var(--ink-soft);
         padding:9px 0;border-top:1px solid var(--rule)}
.arch li:first-child{border-top:0;padding-top:0}
.outcome{margin:56px 0 0;border-left:2px solid var(--accent);padding:4px 0 4px 22px}
.outcome p{font-family:var(--serif);font-size:clamp(21px,2.5vw,29px);line-height:1.35;margin:0;max-width:34ch}
.case-nav{display:flex;justify-content:space-between;gap:20px;margin-top:88px;
          border-top:1px solid var(--rule);padding-top:22px;font-size:13.5px}
.case-nav a{text-decoration:none;color:var(--ink-soft)}
.case-nav a:hover{color:var(--ink)}

/* ---------------- about ---------------- */
.about{padding:96px 0;border-top:1px solid var(--rule);margin-top:88px}
.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.about h2{font-family:var(--serif);font-weight:400;font-size:clamp(32px,4.4vw,54px);
          line-height:1.06;margin:0;letter-spacing:-.015em;max-width:14ch}
.about p{font-size:16.5px;line-height:1.66;color:var(--ink-soft);margin:0 0 16px;max-width:52ch}
.skills{display:grid;grid-template-columns:1fr 1fr;gap:0 36px;margin-top:30px}
.skill{border-top:1px solid var(--rule);padding:13px 0}
.skill b{display:block;font-size:14.5px;font-weight:500;margin-bottom:2px}
.skill span{font-size:12.5px;color:var(--ink-faint)}

/* ---------------- contact ---------------- */
.contact{padding:110px 0 90px;border-top:1px solid var(--rule)}
.contact__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:start}
.contact h2{font-family:var(--serif);font-weight:400;font-size:clamp(36px,5.2vw,70px);
            line-height:1.02;margin:0 0 22px;max-width:17ch;letter-spacing:-.015em}
.contact__links{display:flex;flex-direction:column;gap:2px;margin-top:26px}
.clink{display:flex;justify-content:space-between;align-items:baseline;gap:16px;
       border-top:1px solid var(--rule);padding:14px 0;text-decoration:none;
       transition:padding-left .35s var(--ease)}
.clink:hover{padding-left:10px}
.clink b{font-size:16px;font-weight:500}
.clink span{font-size:13px;color:var(--ink-faint)}

form.lead{border:1px solid var(--rule);border-radius:3px;padding:26px;background:var(--paper-2)}
.field{margin-bottom:16px}
.field label{display:block;font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;
             color:var(--ink-faint);margin-bottom:6px}
.field input,.field textarea{
  width:100%;font-family:var(--sans);font-size:15px;color:var(--ink);
  background:var(--paper);border:1px solid var(--rule);border-radius:2px;padding:11px 13px;
  transition:border-color .3s var(--ease)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.field textarea{min-height:104px;resize:vertical}
button.submit{width:100%;font-family:var(--sans);font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:2px;
  padding:14px;cursor:pointer;transition:background .3s var(--ease),color .3s var(--ease)}
button.submit:hover{background:transparent;color:var(--ink)}
.form-note{font-size:12.5px;color:var(--ink-faint);margin-top:12px;line-height:1.5}
.form-note.warn{color:var(--accent)}

/* ---------------- footer ---------------- */
.site-ft{border-top:1px solid var(--rule);padding:20px 0}
.site-ft__in{display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--ink-faint)}

/* ---------------- reveal ---------------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ---------------- responsive ---------------- */
@media (max-width:1080px){
  .split{grid-template-columns:1fr;gap:34px}
  .viewer{position:static;order:-1}
  .case-facts{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  :root{--pad:20px}
  .hero{padding:68px 0 50px}
  .hero__row,.about__grid,.contact__grid,.case-body,
  .band__grid,.cost__grid{grid-template-columns:1fr;gap:30px}
  .band,.cost{padding-top:64px}
  .def{grid-template-columns:1fr;gap:3px}
  .crow{flex-direction:column;gap:3px}
  .crow span{text-align:left}
  .lede,.card__desc,.about p,.def span,.step p,.case-body p{max-width:100%}
  .facts{justify-content:flex-start;gap:30px}
  .grid{grid-template-columns:1fr;gap:44px}
  .card:nth-child(even){margin-top:0}
  .site-nav{display:none}
  .site-nav.is-open{display:flex;position:absolute;left:0;right:0;top:100%;flex-direction:column;
    gap:0;background:var(--paper);border-bottom:1px solid var(--rule);padding:6px var(--pad) 16px}
  .site-nav.is-open a{padding:12px 0;border-top:1px solid var(--rule);font-size:16px}
  .burger{display:block}
  .idx-hd{display:none}
  .idx-row{grid-template-columns:30px 1fr 30px;gap:12px}
  .idx-row__n,.idx-row__y{display:none}
  .skills{grid-template-columns:1fr}
  .includes ul{grid-template-columns:1fr}
  .screens__row{grid-template-columns:repeat(2,1fr);gap:18px}
  .step{grid-template-columns:1fr;gap:8px}
}