/* ============================================================
   AERIS RIMOR — загальні стилі сайту
   1. Токени        2. Каркас/фон      3. Шапка та підвал
   4. Головна       5. Хаб публікацій  6. Стаття
   ============================================================ */

/* ---------- 1. токени ---------- */
:root{
  --ink:#070C12;
  --steel:#16232E;
  --haze:#8299A8;
  --paper:#EDF2F5;
  --signal:#FFD100;
  --azure:#3D82C4;
  --edge:rgba(237,242,245,.16);
  --gutter:clamp(18px,5vw,64px);
  --display:"IBM Plex Sans Condensed",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;background:var(--ink);color:var(--paper);
  font-family:var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
[hidden]{display:none!important}

/* ---------- 2. фон ---------- */
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.28;mix-blend-mode:overlay;
  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='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* фон головної — знімок на всю площину */
.backdrop{position:fixed;inset:0;z-index:0;overflow:hidden;
  background:radial-gradient(130% 100% at 50% 38%, #35454F 0%, #223038 42%, #101A22 78%, #0A1219 100%)}
.backdrop .frame{position:absolute;inset:0;width:100%;height:100%}
.backdrop .frame img{width:100%;height:100%;object-fit:cover;object-position:50% 44%;
  filter:grayscale(.32) contrast(1.05) brightness(.68) blur(.4px);transform:scale(1.06)}
.backdrop::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(8,14,20,.80) 0%, rgba(8,14,20,.26) 26%, rgba(8,14,20,.30) 60%, rgba(8,14,20,.86) 100%)}
/* у портреті кадр квадратний — показуємо літак цілком */
@media (max-aspect-ratio: 9/10){
  .backdrop .frame{
    top:50%;left:50%;transform:translate(-50%,-50%);
    width:min(118vw,100vh);height:min(118vw,100vh);
    width:min(118vw,100svh);height:min(118vw,100svh);
    -webkit-mask-image:linear-gradient(to bottom,transparent 0,#000 7%,#000 93%,transparent 100%);
    mask-image:linear-gradient(to bottom,transparent 0,#000 7%,#000 93%,transparent 100%);
  }
  .backdrop .frame img{object-fit:contain;transform:none}
}

/* фон внутрішніх сторінок — смуга зверху */
.backdrop--band{background:radial-gradient(120% 80% at 50% 0%, #1B2833 0%, #101A22 45%, #070C12 100%)}
.backdrop--band .frame img{
  height:60vh;object-position:50% 42%;transform:none;
  filter:grayscale(.4) brightness(.45) blur(1px);
  -webkit-mask-image:linear-gradient(to bottom,#000 0,transparent 100%);
  mask-image:linear-gradient(to bottom,#000 0,transparent 100%);
}
.backdrop--band::after{display:none}

/* рамка прицілу (тільки головна) */
.hud{position:fixed;inset:clamp(12px,2.2vw,26px);z-index:3;pointer-events:none}
.hud i{position:absolute;width:34px;height:34px;border:1px solid var(--edge)}
.hud i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0}
.hud i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0}
.hud i:nth-child(3){bottom:0;left:0;border-right:0;border-top:0}
.hud i:nth-child(4){bottom:0;right:0;border-left:0;border-top:0}
.hud b{position:absolute;left:50%;transform:translateX(-50%);width:1px;height:14px;background:var(--edge)}
.hud b:nth-of-type(1){top:0}
.hud b:nth-of-type(2){bottom:0}
.scan{position:fixed;left:0;right:0;height:1px;z-index:3;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(61,130,196,.55) 22%,rgba(255,209,0,.35) 50%,rgba(61,130,196,.55) 78%,transparent);
  animation:sweep 11s linear infinite}
@keyframes sweep{0%{top:-2%;opacity:0}8%{opacity:.9}92%{opacity:.9}100%{top:102%;opacity:0}}

/* ---------- 3. шапка та підвал ---------- */
.wrap{position:relative;z-index:2;
  padding:0 calc(var(--gutter) + env(safe-area-inset-right)) calc(40px + env(safe-area-inset-bottom)) calc(var(--gutter) + env(safe-area-inset-left))}

.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;padding:14px 0;margin-bottom:clamp(24px,5vh,48px);
  background:linear-gradient(180deg, rgba(7,12,18,.94) 55%, rgba(7,12,18,0) 100%)}
.brand{display:inline-flex;align-items:center;gap:10px;background:var(--paper);color:#0B1219;
  padding:7px 14px;text-decoration:none;box-shadow:0 10px 34px rgba(0,0,0,.5)}
.brand svg{flex:none;display:block}
.brand span{font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:.2em;text-transform:uppercase;line-height:1}
.topnav{display:flex;align-items:center;gap:16px}
.back{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--haze);text-decoration:none}
.back:hover{color:var(--signal)}

.lang{display:flex;border:1px solid var(--edge);background:rgba(7,12,18,.55);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.lang button{appearance:none;border:0;background:none;cursor:pointer;color:var(--haze);
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;padding:9px 14px;transition:color .18s,background .18s}
.lang button+button{border-left:1px solid var(--edge)}
.lang button[aria-pressed="true"]{color:var(--ink);background:var(--paper)}
.lang button:hover{color:var(--paper)}
.lang button[aria-pressed="true"]:hover{color:var(--ink)}

.site-footer{max-width:1180px;margin:clamp(30px,6vh,60px) auto 0;border-top:1px solid var(--edge);padding-top:20px;
  display:flex;justify-content:space-between;align-items:center;gap:12px 24px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--haze)}
.site-footer a{color:var(--paper);text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:color .18s}
.site-footer a svg{color:var(--azure);transition:color .18s}
.site-footer a:hover,.site-footer a:hover svg{color:var(--signal)}
.site-footer--narrow{max-width:760px}
.etym{color:#5F7382;text-transform:none;letter-spacing:.04em}

/* ---------- 4. головна ---------- */
.home{min-height:100vh;min-height:100svh;
  padding:calc(clamp(26px,4.4vw,48px) + env(safe-area-inset-top)) calc(var(--gutter) + env(safe-area-inset-right)) calc(clamp(26px,4.4vw,48px) + env(safe-area-inset-bottom)) calc(var(--gutter) + env(safe-area-inset-left));
  display:grid;grid-template-rows:auto 1fr auto;gap:clamp(28px,5vh,56px);position:relative;z-index:4}
.home .top{display:flex;justify-content:flex-end;align-items:center;gap:16px;flex-wrap:wrap}
.home main{align-self:center;max-width:940px;width:100%;margin-inline:auto;text-align:center;position:relative}
.home main::before{content:"";position:absolute;inset:-10% -14%;z-index:-1;pointer-events:none;
  background:radial-gradient(58% 56% at 50% 50%, rgba(7,12,18,.86) 0%, rgba(7,12,18,.52) 55%, rgba(7,12,18,0) 100%)}

.plate{display:inline-flex;align-items:center;gap:14px;background:var(--paper);color:#0B1219;
  padding:11px clamp(18px,3vw,30px);margin-bottom:clamp(26px,4.5vh,44px);box-shadow:0 18px 60px rgba(0,0,0,.55)}
.plate svg{display:block;flex:none}
.plate .mark{font-family:var(--display);font-weight:700;font-size:clamp(20px,3.6vw,34px);
  letter-spacing:.2em;text-transform:uppercase;line-height:1;padding-left:2px}

.home h1{font-family:var(--display);font-weight:700;text-transform:uppercase;
  font-size:clamp(30px,6.6vw,74px);line-height:.96;letter-spacing:-.005em;margin:0 0 clamp(18px,2.6vh,26px);
  text-wrap:balance;text-shadow:0 6px 40px rgba(0,0,0,.6)}
.home h1 em{font-style:normal;color:var(--signal)}
.lede{font-size:clamp(15px,1.7vw,18px);line-height:1.6;color:#C6D3DC;max-width:62ch;
  margin:0 auto clamp(12px,1.6vh,18px);text-wrap:pretty}
.disclaimer{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:#5F7382;margin:0 0 clamp(22px,3vh,30px)}
.scope{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--haze);
  display:flex;justify-content:center;gap:10px 18px;flex-wrap:wrap;padding-top:clamp(20px,3vh,28px);
  border-top:1px solid var(--edge);max-width:640px;margin:0 auto clamp(26px,3.6vh,36px)}
.scope span{white-space:nowrap}
.scope span::before{content:"◦ ";color:var(--azure)}

.cta{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--signal);
  background:rgba(255,209,0,.08);color:var(--signal);font-family:var(--display);font-weight:700;
  text-transform:uppercase;font-size:clamp(15px,2.2vw,20px);letter-spacing:.18em;
  padding:16px clamp(22px,4vw,38px);text-decoration:none;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:background .18s,color .18s}
.cta svg{flex:none;transition:transform .18s}
.cta:hover{background:var(--signal);color:#0B1219}
.cta:hover svg{transform:translateX(4px)}
.cta-note{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--haze);margin:14px 0 0}

/* ---------- 5. хаб публікацій ---------- */
.hub{max-width:1180px;margin:0 auto}
.hub-head{margin:0 0 clamp(28px,5vh,48px)}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--azure);margin:0 0 14px}
.hub-head h1{font-family:var(--display);font-weight:700;text-transform:uppercase;
  font-size:clamp(32px,6vw,60px);line-height:.98;margin:0 0 16px;text-wrap:balance}
.hub-head h1 em{font-style:normal;color:var(--signal)}
.hub-head .lede{margin:0;text-align:left;max-width:70ch}

.cards{display:grid;gap:clamp(16px,2.4vw,26px);grid-template-columns:repeat(auto-fill,minmax(320px,1fr));margin:0}
.card{position:relative;display:flex;flex-direction:column;border:1px solid var(--edge);
  background:rgba(12,20,27,.66);text-decoration:none;color:inherit;overflow:hidden;
  transition:border-color .2s,transform .2s,background .2s}
.card:hover{border-color:rgba(255,209,0,.55);background:rgba(18,28,37,.8);transform:translateY(-3px)}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:#0B1219;border-bottom:1px solid var(--edge)}
.card-cover img{width:100%;height:100%;object-fit:cover;filter:grayscale(.25) brightness(.82);transition:filter .25s,transform .5s}
.card:hover .card-cover img{filter:grayscale(0) brightness(1);transform:scale(1.04)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-kicker{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--azure);
  display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.card-kicker .n{color:var(--haze)}
.card h2{font-family:var(--display);font-weight:700;text-transform:uppercase;font-size:clamp(19px,2.2vw,24px);
  line-height:1.06;margin:0;text-wrap:balance}
.card p{font-size:14.5px;line-height:1.55;color:#B4C4CE;margin:0}
.card-more{margin-top:auto;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--signal);display:inline-flex;align-items:center;gap:9px}
.card-more svg{transition:transform .18s}
.card:hover .card-more svg{transform:translateX(4px)}

/* ---------- 6. стаття ---------- */
article{max-width:760px;margin:0 auto}
article h1{font-family:var(--display);font-weight:700;text-transform:uppercase;
  font-size:clamp(32px,6vw,60px);line-height:.98;margin:0 0 18px;text-wrap:balance}
article h1 em{font-style:normal;color:var(--signal)}
.meta{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--haze);
  display:flex;gap:8px 18px;flex-wrap:wrap;border-top:1px solid var(--edge);border-bottom:1px solid var(--edge);
  padding:12px 0;margin:0 0 clamp(26px,4vh,40px)}

article p{font-size:17px;line-height:1.68;color:#C9D6DF;margin:0 0 18px;text-wrap:pretty}
article p strong{color:var(--paper);font-weight:600}
article p em{color:var(--haze);font-style:italic}
article .lead p{font-size:18px;color:#D5E0E8;text-align:left;max-width:none;margin:0 0 18px}
.tick{color:var(--signal);font-style:normal}
.info{color:var(--azure);font-style:normal}

.toc{border:1px solid var(--edge);background:rgba(12,20,27,.6);padding:20px 22px;margin:0 0 clamp(34px,6vh,60px)}
.toc h2{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--haze);margin:0 0 14px;font-weight:400}
.toc ol{list-style:none;counter-reset:t;margin:0;padding:0}
.toc li{counter-increment:t;border-top:1px solid rgba(237,242,245,.08)}
.toc li:first-child{border-top:0}
.toc a{display:flex;gap:14px;align-items:baseline;padding:11px 0;color:#C9D6DF;text-decoration:none;font-size:15px;transition:color .18s}
.toc a::before{content:counter(t,decimal-leading-zero);font-family:var(--mono);font-size:11px;color:var(--azure);letter-spacing:.1em}
.toc a:hover{color:var(--signal)}

.part{margin:0 0 clamp(48px,8vh,86px);scroll-margin-top:96px}
.part-no{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--azure);margin:0 0 10px}
h2.part-title{font-family:var(--display);font-weight:700;text-transform:uppercase;
  font-size:clamp(23px,3.6vw,34px);line-height:1.06;margin:0 0 22px;padding-bottom:14px;border-bottom:1px solid var(--edge)}
article h3{font-family:var(--display);font-weight:600;text-transform:uppercase;letter-spacing:.02em;
  font-size:clamp(17px,2.4vw,21px);margin:30px 0 14px;color:var(--paper)}

ul.plain{margin:0 0 18px;padding:0 0 0 4px;list-style:none}
ul.plain li{font-size:16px;line-height:1.6;color:#C9D6DF;padding:5px 0 5px 20px;position:relative}
ul.plain li::before{content:"";position:absolute;left:2px;top:14px;width:7px;height:1px;background:var(--azure)}

figure{margin:0 0 26px;border:1px solid var(--edge);background:rgba(12,20,27,.6)}
figure img{width:100%}
figcaption{font-family:var(--mono);font-size:11px;line-height:1.65;letter-spacing:.06em;color:var(--haze);
  padding:12px 14px;border-top:1px solid var(--edge)}
.pair{display:grid;gap:0;margin:0 0 26px;border:1px solid var(--edge);background:rgba(12,20,27,.6)}
.pair figure{border:0;margin:0}
.pair figure+figure{border-top:1px solid var(--edge)}

details{border-top:1px solid var(--edge)}
details summary{cursor:pointer;list-style:none;padding:11px 14px;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--azure)}
details summary::-webkit-details-marker{display:none}
details summary::after{content:" +";color:var(--haze)}
details[open] summary::after{content:" −"}
details .body{padding:0 14px 16px}
details .body p{font-size:14px;line-height:1.6;margin:0 0 10px;color:#B4C4CE}
details .body p:last-child{margin-bottom:0}

.callout{border-left:2px solid var(--signal);background:rgba(255,209,0,.05);padding:14px 18px;margin:0 0 20px}
.callout p{margin:0;font-size:16px}
.legend{border:1px solid var(--edge);background:rgba(12,20,27,.6);padding:18px 20px;margin:0 0 26px}
.legend p:last-child{margin-bottom:0}

table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid rgba(237,242,245,.1);color:#C9D6DF;vertical-align:top}
th{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--haze);font-weight:400}
td:first-child{font-family:var(--mono);font-size:12px;color:var(--paper);white-space:nowrap}

.note{font-family:var(--mono);font-size:11px;line-height:1.7;letter-spacing:.06em;color:var(--haze);
  border:1px solid var(--edge);padding:16px 18px;margin:0 0 clamp(34px,5vh,52px)}
.sources ul{list-style:none;margin:0 0 18px;padding:0}
.sources li{border-bottom:1px solid rgba(237,242,245,.08);padding:9px 0}
.sources a{color:#C9D6DF;text-decoration:none;font-family:var(--mono);font-size:12px;word-break:break-all;transition:color .18s}
.sources a:hover{color:var(--signal)}

/* навігація між публікаціями в кінці статті */
.next{max-width:760px;margin:0 auto clamp(20px,4vh,40px);display:grid;gap:14px;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.next a{border:1px solid var(--edge);background:rgba(12,20,27,.6);padding:16px 18px;text-decoration:none;
  display:flex;flex-direction:column;gap:7px;transition:border-color .2s,background .2s}
.next a:hover{border-color:rgba(255,209,0,.5);background:rgba(18,28,37,.8)}
.next .k{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--azure)}
.next .t{font-family:var(--display);font-weight:600;text-transform:uppercase;font-size:17px;line-height:1.1;color:var(--paper)}

/* ---------- адаптив ---------- */
@media (max-width:640px){
  .topbar{padding:11px 0}
  .brand span{font-size:13px;letter-spacing:.16em}
  .back{display:none}
  article p{font-size:16px}
  .site-footer{justify-content:center;text-align:center;gap:10px}
  table{font-size:14px}
  th,td{padding:8px 8px}
  .hud{display:none}
  .home .lang button{padding:11px 16px}
  .home{gap:clamp(22px,4vh,34px)}
  .home main::before{inset:-8% -20%}
  .scope{gap:8px 14px}
  .cards{grid-template-columns:1fr}
}
@media (max-width:400px){
  .plate{gap:10px;padding:9px 14px}
  .plate .mark{letter-spacing:.16em}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .scan{display:none}
  *{transition:none!important}
}