/* ==== Танкоград — фан-ремейк Battle City ==== */
/* Фирменные цвета: кирпич/терракота/охра на чёрном NES-фоне */
:root{
  --brand:#c0392b;        /* кирпичный */
  --brand-2:#e6b800;      /* охра/жёлтый танк */
  --accent:#4a9e2f;       /* зелёный (кусты/game) */
  --bg:#0d0d0f;
  --surface:#17161a;
  --surface-2:#201e24;
  --text:#efe7d8;
  --muted:#9b948a;
  --border:#332f38;
  --brick:#b4552f;
  --steel:#7d7d85;
  --grad:linear-gradient(135deg,#c0392b,#e6b800);
  --container:1120px;
  --font-sans:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-serif:"Georgia","Times New Roman",serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html.js .reveal{opacity:0;transform:translateY(18px)}
html.js .reveal.in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){html.js .reveal{opacity:1;transform:none}}

body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-sans);line-height:1.6;font-size:16px;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 500px at 85% -10%, rgba(192,57,43,.18), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(74,158,47,.12), transparent 60%);
  background-attachment:fixed;
}
/* лёгкое зерно */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
a{color:var(--brand-2);text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--font-serif);line-height:1.1;margin:0 0 .4em;font-weight:700;letter-spacing:.5px}
.muted{color:var(--muted)}
.accent{color:var(--brand-2)}

/* pixel headings */
.pixel{font-family:"Courier New",monospace;letter-spacing:2px;text-transform:uppercase;font-weight:900}

/* ==== Header ==== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,13,15,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.hdr-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text)}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--surface-2);border:1px solid var(--border)}
.brand-name{font-family:"Courier New",monospace;font-weight:900;letter-spacing:2px;font-size:20px}
.brand-name.big{font-size:24px}
.site-nav{display:flex;align-items:center;gap:22px}
.site-nav a{color:var(--muted);font-weight:600;font-size:14px;letter-spacing:.5px}
.site-nav a:hover{color:var(--text)}
.site-nav a.is-active{color:var(--brand-2)}
.nav-cta{padding:8px 16px;border:1px solid var(--border);color:var(--text)!important;font-family:"Courier New",monospace;letter-spacing:1px}
.nav-cta.ghost:hover{border-color:var(--brand)}
.nav-cta.primary{background:var(--brand-2);color:#1a1400!important;border-color:var(--brand-2);font-weight:800}
.nav-cta.primary:hover{background:#ffcf1a}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:26px;height:3px;background:var(--text);display:block}

/* ==== Buttons ==== */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;font-family:"Courier New",monospace;font-weight:800;letter-spacing:1px;text-transform:uppercase;border:2px solid transparent;cursor:pointer;font-size:15px;transition:transform .12s ease,background .15s ease}
.btn:active{transform:translateY(2px)}
.btn-primary{background:var(--brand-2);color:#1a1400;border-color:#8a6d00}
.btn-primary:hover{background:#ffcf1a}
.btn-brick{background:var(--brand);color:#fff;border-color:#7a2016}
.btn-brick:hover{background:#d8452f}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand-2)}
.btn-lg{padding:18px 34px;font-size:17px}

/* ==== Hero (split) ==== */
.hero{padding:70px 0 60px;position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--surface-2);border:1px solid var(--border);color:var(--brand-2);font-family:"Courier New",monospace;font-size:12px;letter-spacing:2px;padding:7px 14px;text-transform:uppercase;margin-bottom:22px}
.hero h1{font-size:clamp(2.6rem,6vw,4.4rem);color:var(--text)}
.hero h1 .brk{color:var(--brand)}
.hero .lead{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--muted);max-width:520px;margin:18px 0 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;gap:30px;margin-top:36px;flex-wrap:wrap}
.hero-stats b{display:block;font-family:"Courier New",monospace;font-size:1.9rem;color:var(--brand-2)}
.hero-stats span{font-size:13px;color:var(--muted);letter-spacing:.5px}

/* hero visual card */
.hero-card{background:#000;border:2px solid var(--border);padding:14px;position:relative}
.hero-card .screen{aspect-ratio:1/1;background:#000;display:grid;place-items:center;position:relative;overflow:hidden}
.hero-card .screen img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated}
.hero-card .scan{position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,0,0,.25) 0 2px,transparent 2px 4px);mix-blend-mode:multiply}
.hero-card .cap{margin-top:12px;display:flex;justify-content:space-between;font-family:"Courier New",monospace;font-size:12px;color:var(--muted);letter-spacing:1px}
.hero-card .cap b{color:var(--brand-2)}

/* ==== Sections ==== */
.section{padding:clamp(64px,9vw,110px) 0;position:relative;z-index:2}
.section.alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.sec-head{max-width:640px;margin-bottom:44px}
.sec-head .k{font-family:"Courier New",monospace;color:var(--brand);letter-spacing:3px;font-size:13px;text-transform:uppercase}
.sec-head h2{font-size:clamp(1.9rem,4vw,2.9rem);margin-top:10px}
.sec-head p{color:var(--muted);font-size:1.05rem}

/* feature bento */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tile{background:var(--surface);border:1px solid var(--border);padding:26px;position:relative;transition:border-color .2s ease,transform .2s ease}
.tile:hover{border-color:var(--brand);transform:translateY(-3px)}
.tile.wide{grid-column:span 2}
.tile.tall{grid-row:span 2}
.tile .ico{width:44px;height:44px;display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--border);margin-bottom:16px}
.tile h3{font-size:1.2rem}
.tile p{color:var(--muted);font-size:.96rem;margin:0}
.tile .shot{aspect-ratio:16/10;margin-top:18px;overflow:hidden;border:1px solid var(--border);background:#000}
.tile .shot img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated}

/* modes */
.modes{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.mode-card{background:var(--surface);border:1px solid var(--border);overflow:hidden;transition:transform .2s ease,border-color .2s ease}
.mode-card:hover{transform:translateY(-4px);border-color:var(--brand-2)}
.mode-card .pic{aspect-ratio:16/9;overflow:hidden;background:#000;border-bottom:1px solid var(--border)}
.mode-card .pic img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated}
.mode-card .body{padding:24px}
.mode-card .tag{display:inline-block;font-family:"Courier New",monospace;font-size:11px;letter-spacing:1px;padding:4px 10px;border:1px solid var(--border);margin-bottom:12px;text-transform:uppercase}
.mode-card.coop .tag{color:var(--accent);border-color:var(--accent)}
.mode-card.pvp .tag{color:var(--brand);border-color:var(--brand)}
.mode-card h3{font-size:1.4rem}

/* elements strip */
.elements{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.el{background:var(--surface);border:1px solid var(--border);padding:16px 10px;text-align:center}
.el .sw{width:40px;height:40px;margin:0 auto 10px;image-rendering:pixelated}
.el b{display:block;font-family:"Courier New",monospace;font-size:12px;letter-spacing:1px}
.el span{font-size:11px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:st}
.step{background:var(--surface);border:1px solid var(--border);padding:26px;position:relative}
.step::before{counter-increment:st;content:counter(st,decimal-leading-zero);font-family:"Courier New",monospace;font-size:2.4rem;color:var(--brand);opacity:.35;display:block;margin-bottom:8px}
.step h3{font-size:1.15rem}
.step p{color:var(--muted);font-size:.95rem;margin:0}

/* FAQ */
.faq{max-width:820px}
.faq details{background:var(--surface);border:1px solid var(--border);margin-bottom:12px}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:16px;font-family:var(--font-serif)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand-2);font-size:1.4rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{padding:0 22px 20px;margin:0;color:var(--muted)}

/* CTA band */
.cta-band{background:var(--brand);color:#fff;padding:clamp(50px,7vw,80px) 0;position:relative;z-index:2;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;opacity:.15;background-image:repeating-linear-gradient(45deg,#000 0 12px,transparent 12px 24px)}
.cta-band .inner{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto}
.cta-band h2{color:#fff;font-size:clamp(1.8rem,4vw,2.8rem)}
.cta-band p{color:rgba(255,255,255,.85);margin-bottom:26px}

/* ==== Lobby ==== */
.page-head{padding:48px 0 10px;position:relative;z-index:2}
.page-head h1{font-size:clamp(2rem,5vw,3rem)}
.page-head .k{font-family:"Courier New",monospace;color:var(--brand);letter-spacing:3px;font-size:13px;text-transform:uppercase}
.lobby-wrap{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start;padding-bottom:80px;position:relative;z-index:2}
.room-list{display:grid;gap:12px}
.room{display:grid;grid-template-columns:auto 1fr auto auto;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--border);padding:16px 18px;transition:border-color .2s}
.room:hover{border-color:var(--brand-2)}
.room .mdot{width:38px;height:38px;display:grid;place-items:center;font-family:"Courier New",monospace;font-weight:900;border:1px solid var(--border)}
.room .mdot.coop{color:var(--accent)}
.room .mdot.pvp{color:var(--brand)}
.room .rn{font-weight:700;font-family:var(--font-serif);font-size:1.05rem}
.room .meta{font-size:12px;color:var(--muted);font-family:"Courier New",monospace;letter-spacing:.5px}
.room .cnt{font-family:"Courier New",monospace;color:var(--brand-2);font-size:1.05rem}
.badge{font-family:"Courier New",monospace;font-size:10px;letter-spacing:1px;padding:3px 8px;border:1px solid var(--border);text-transform:uppercase}
.badge.wait{color:var(--accent);border-color:var(--accent)}
.badge.play{color:var(--brand-2);border-color:var(--brand-2)}
.badge.lock{color:var(--muted)}
.side-card{background:var(--surface);border:1px solid var(--border);padding:24px;position:sticky;top:84px}
.side-card h3{font-size:1.2rem}
label.fld{display:block;margin:14px 0}
label.fld span{display:block;font-size:12px;color:var(--muted);font-family:"Courier New",monospace;letter-spacing:1px;margin-bottom:6px;text-transform:uppercase}
.inp,select.inp{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:12px 14px;font-family:var(--font-sans);font-size:15px}
.inp:focus,select.inp:focus{outline:none;border-color:var(--brand-2)}
.radio-row{display:flex;gap:10px}
.radio-row label{flex:1;text-align:center;border:1px solid var(--border);padding:10px;cursor:pointer;font-family:"Courier New",monospace;font-size:13px;letter-spacing:1px}
.radio-row input{display:none}
.radio-row input:checked+span{color:var(--brand-2)}
.radio-row label:has(input:checked){border-color:var(--brand-2)}
.divider{height:1px;background:var(--border);margin:22px 0}

/* ==== Play page ==== */
.play-shell{padding:24px 0 60px;position:relative;z-index:2}
.play-grid{display:grid;grid-template-columns:1fr 260px;gap:24px;align-items:start}
.game-stage{background:#000;border:2px solid var(--border);padding:12px;position:relative}
#gameCanvas{width:100%;height:auto;display:block;image-rendering:pixelated;background:#000;aspect-ratio:1/1}
.game-scan{position:absolute;inset:12px;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,0,0,.18) 0 2px,transparent 2px 4px)}
.hud{background:var(--surface);border:1px solid var(--border);padding:20px}
.hud h3{font-family:"Courier New",monospace;letter-spacing:1px;font-size:.85rem;color:var(--muted);text-transform:uppercase;border-bottom:1px solid var(--border);padding-bottom:8px}
.hud .row{display:flex;justify-content:space-between;font-family:"Courier New",monospace;padding:6px 0;font-size:14px}
.hud .row b{color:var(--brand-2)}
.hud .base{display:flex;align-items:center;gap:10px;margin-top:10px;font-family:"Courier New",monospace;font-size:13px}
.players-list{display:grid;gap:8px;margin-top:8px}
.pl-chip{display:flex;align-items:center;gap:10px;font-family:"Courier New",monospace;font-size:13px}
.pl-chip .dot{width:14px;height:14px;border:1px solid #000}
.overlay{position:absolute;inset:12px;background:rgba(0,0,0,.86);display:grid;place-items:center;text-align:center;z-index:5}
.overlay .box{max-width:340px;padding:20px}
.overlay h2{font-family:"Courier New",monospace;color:var(--brand-2);letter-spacing:2px}
.overlay p{color:var(--muted);font-size:.95rem}
.net-note{margin-top:14px;font-size:12px;color:var(--muted);font-family:"Courier New",monospace;line-height:1.7;border:1px dashed var(--border);padding:12px}
.mobile-pad{display:none;margin-top:16px}

/* ==== Leaders ==== */
.lb-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);position:relative;z-index:2}
.lb-table th,.lb-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
.lb-table th{font-family:"Courier New",monospace;font-size:11px;letter-spacing:1px;color:var(--muted);text-transform:uppercase;background:var(--surface-2)}
.lb-table td.num{font-family:"Courier New",monospace;color:var(--brand-2);text-align:right}
.lb-table tr:hover td{background:var(--surface-2)}
.rank{font-family:"Courier New",monospace;font-weight:900;width:44px}
.rank.top{color:var(--brand-2)}
.pl-name{display:flex;align-items:center;gap:10px;font-weight:700}
.av{width:26px;height:26px;border:1px solid #000;flex:none}

/* ==== Profile ==== */
.prof-grid{display:grid;grid-template-columns:300px 1fr;gap:28px;align-items:start;padding-bottom:70px;position:relative;z-index:2}
.prof-card{background:var(--surface);border:1px solid var(--border);padding:28px;text-align:center}
.prof-av{width:96px;height:96px;margin:0 auto 16px;border:2px solid #000;image-rendering:pixelated}
.prof-card h2{font-family:"Courier New",monospace;letter-spacing:1px}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stat{background:var(--surface);border:1px solid var(--border);padding:22px}
.stat b{display:block;font-family:"Courier New",monospace;font-size:2rem;color:var(--brand-2)}
.stat span{color:var(--muted);font-size:13px;letter-spacing:.5px}
.av-picker{display:flex;gap:10px;justify-content:center;margin:16px 0}
.av-picker label{cursor:pointer}
.av-picker input{display:none}
.av-picker .sw{width:34px;height:34px;border:2px solid var(--border)}
.av-picker input:checked+.sw{border-color:var(--brand-2)}

/* ==== Article / text pages ==== */
.prose{max-width:780px;position:relative;z-index:2;padding-bottom:70px}
.prose h2{font-size:1.6rem;margin-top:2em}
.prose h3{font-size:1.2rem;margin-top:1.6em;color:var(--brand-2)}
.prose p{color:#d8d0c2}
.prose ul{color:#d8d0c2}
.prose img{border:1px solid var(--border);margin:24px 0;image-rendering:pixelated}
.key-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:24px 0}
.key{background:var(--surface);border:1px solid var(--border);padding:16px;text-align:center}
.key kbd{display:inline-block;font-family:"Courier New",monospace;background:var(--surface-2);border:1px solid var(--border);border-bottom-width:3px;padding:6px 12px;font-weight:800;color:var(--brand-2);margin-bottom:8px}
.key span{display:block;font-size:13px;color:var(--muted)}

/* notice */
.notice{background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--brand-2);padding:14px 18px;margin:14px 0;font-size:14px}
.notice.ok{border-left-color:var(--accent)}
.notice.err{border-left-color:var(--brand)}

/* ==== Responsive ==== */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-card{max-width:440px}
  .lobby-wrap,.play-grid,.prof-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr 1fr}
  .tile.wide{grid-column:span 2}
  .modes,.steps{grid-template-columns:1fr}
  .elements{grid-template-columns:repeat(3,1fr)}
  .side-card{position:static}
  .mobile-pad{display:block}
  .burger{display:flex}
  .site-nav{position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 16px;display:none}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 0;border-bottom:1px solid var(--border)}
  .nav-cta{text-align:center;margin-top:8px}
}
@media(max-width:560px){
  .bento{grid-template-columns:1fr}
  .tile.wide{grid-column:span 1}
  .elements{grid-template-columns:repeat(2,1fr)}
  .room{grid-template-columns:auto 1fr;gap:10px}
  .room .cnt,.room .badge{grid-column:2}
  .footer-grid{grid-template-columns:1fr 1fr}
}

/* footer */
.site-footer{background:#0a0a0c;border-top:1px solid var(--border);position:relative;z-index:2;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:36px}
.footer-col h4{font-family:"Courier New",monospace;font-size:13px;letter-spacing:1px;color:var(--brand-2);text-transform:uppercase;margin-bottom:14px}
.footer-col a{display:block;color:var(--muted);padding:5px 0;font-size:14px}
.footer-col a:hover{color:var(--text)}
.footer-col p{font-size:14px;margin:0}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;font-size:13px;color:var(--muted);font-family:"Courier New",monospace}
@media(max-width:700px){.footer-grid{grid-template-columns:1fr 1fr}}