/* ============================================================
   WING FIGHTER — Teardown Docs   |   sci-fi HUD design system
   ============================================================ */
:root{
  --bg:#070a14; --bg2:#0b1020; --panel:#0e1526; --panel2:#121b30;
  --line:#1e2b45; --line2:#2b3d5f;
  --ink:#dfe8ff; --ink-dim:#94a6c8; --ink-faint:#5f7096;
  --cyan:#2fd3ff; --cyan-deep:#0d8fc4; --gold:#f8c751; --red:#fc614c; --green:#12eca5;
  --purple:#c463fb; --blue:#3690ff;
  --r1:#9fb0c9; --r2:#12eca5; --r3:#3690ff; --r4:#c463fb; --r5:#f8c751; --r6:#fc614c;
  --shadow:0 12px 40px rgba(0,0,0,.55);
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(1200px 700px at 80% -8%,rgba(47,211,255,.09),transparent 60%),
                   radial-gradient(900px 600px at 5% 8%,rgba(196,99,251,.08),transparent 55%);
  background-attachment:fixed;
}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#fff}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.2;font-weight:700;color:#fff;margin:0 0 .5em}
h2{font-size:1.7rem;letter-spacing:-.01em;margin-top:0}
h3{font-size:1.2rem;color:var(--cyan);margin-top:2.2em}
h4{font-size:1rem;color:var(--gold);text-transform:uppercase;letter-spacing:.08em;font-family:var(--mono)}
p{margin:0 0 1em}
code{font-family:var(--mono);font-size:.86em;background:#0a1120;border:1px solid var(--line);
  padding:.1em .4em;border-radius:4px;color:var(--cyan)}
.mono{font-family:var(--mono)}
.dim{color:var(--ink-dim)}
.faint{color:var(--ink-faint)}
.kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--cyan);margin:0 0 .4em}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
section{padding:26px 0}
.lead{font-size:1.12rem;color:var(--ink-dim);max-width:70ch}

/* ---------- top nav ---------- */
header.top{position:sticky;top:0;z-index:50;background:rgba(7,10,20,.82);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:14px;min-height:60px;flex-wrap:wrap;padding-top:4px;padding-bottom:4px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-weight:700;
  letter-spacing:.04em;color:#fff;white-space:nowrap}
.brand .dot{width:9px;height:9px;background:var(--cyan);border-radius:2px;box-shadow:0 0 12px var(--cyan);transform:rotate(45deg)}
.brand small{color:var(--ink-faint);font-weight:400;letter-spacing:.02em}
nav.links{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
nav.links a{font-size:.82rem;color:var(--ink-dim);padding:7px 11px;border-radius:6px;
  font-family:var(--mono);letter-spacing:.02em;transition:.15s}
nav.links a:hover{color:#fff;background:var(--panel)}
nav.links a.active{color:var(--cyan);background:rgba(47,211,255,.1)}
.navtoggle{display:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.35),rgba(7,10,20,.92) 82%)}
.hero-inner{position:relative;padding:72px 0 56px}
.hero h1{font-size:clamp(2.2rem,6vw,4rem);letter-spacing:-.02em;margin:0}
.hero .cn{font-family:var(--mono);color:var(--cyan);font-size:1.1rem;letter-spacing:.3em}
.hero .tagline{font-size:1.15rem;color:var(--ink-dim);max-width:60ch;margin:.8em 0 0}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.badge{font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;color:var(--ink-dim);
  border:1px solid var(--line2);border-radius:20px;padding:5px 12px;background:rgba(14,21,38,.7)}
.badge b{color:var(--cyan)}

/* ---------- panels / cards ---------- */
.panel{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:12px;padding:22px 24px;box-shadow:var(--shadow)}
.panel.glow{border-color:var(--line2);box-shadow:var(--shadow),0 0 0 1px rgba(47,211,255,.06) inset}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}

.stat{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px 18px;position:relative;overflow:hidden}
.stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--cyan)}
.stat .n{font-family:var(--mono);font-size:1.9rem;font-weight:700;color:#fff;line-height:1}
.stat .l{font-size:.78rem;color:var(--ink-dim);margin-top:6px;text-transform:uppercase;letter-spacing:.06em}

/* feature tiles (home) */
.tile{display:block;background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:12px;padding:20px;transition:.18s;position:relative;overflow:hidden;height:100%}
.tile:hover{border-color:var(--cyan-deep);transform:translateY(-3px);color:var(--ink)}
.tile .ico{font-size:1.5rem}
.tile h3{margin:.5em 0 .3em;color:#fff;font-size:1.05rem}
.tile p{color:var(--ink-dim);font-size:.9rem;margin:0}
.tile .arrow{position:absolute;right:16px;top:16px;color:var(--ink-faint);transition:.18s}
.tile:hover .arrow{color:var(--cyan);transform:translateX(3px)}

/* ---------- tables ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;margin:16px 0}
table{border-collapse:collapse;width:100%;font-size:.88rem;min-width:520px}
thead th{background:var(--panel2);color:var(--cyan);text-align:left;padding:10px 13px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  border-bottom:1px solid var(--line2);position:sticky;top:0;white-space:nowrap}
tbody td{padding:9px 13px;border-bottom:1px solid var(--line);vertical-align:top}
tbody tr:hover{background:rgba(47,211,255,.04)}
tbody tr:last-child td{border-bottom:none}
td.num,th.num{text-align:right;font-family:var(--mono)}
.tbl-note{font-size:.8rem;color:var(--ink-faint);margin:4px 2px 0}

/* rarity chips — game's canonical scheme: G=green, N=blue, R=purple, SR=yellow, SSR=red */
.rz{font-family:var(--mono);font-size:.68rem;font-weight:700;padding:2px 8px;border-radius:4px;
  letter-spacing:.05em;display:inline-block;border:1px solid}
.rz.G{color:#12eca5;border-color:#12eca5;background:rgba(18,236,165,.1)}
.rz.N{color:#3690ff;border-color:#3690ff;background:rgba(54,144,255,.12)}
.rz.R{color:#c463fb;border-color:#c463fb;background:rgba(196,99,251,.13)}
.rz.SR{color:#f8c751;border-color:#f8c751;background:rgba(248,199,81,.13)}
.rz.SSR{color:#fc614c;border-color:#fc614c;background:rgba(252,97,76,.13)}
/* tiers above SSR exist only for the 45-unit "Spirits" system (not Pilots/Fighters) */
.rz.UR{color:#ff9d2f;border-color:#ff9d2f;background:rgba(255,157,47,.13)}
.rz.URx{color:#f06ec4;border-color:#f06ec4;background:rgba(240,110,196,.14)}

/* callouts */
.note{border-left:3px solid var(--cyan);background:rgba(47,211,255,.06);padding:12px 16px;border-radius:0 8px 8px 0;margin:16px 0;font-size:.92rem}
.note.warn{border-color:var(--gold);background:rgba(248,199,81,.07)}
.note.spicy{border-color:var(--red);background:rgba(252,97,76,.07)}
.note b{color:#fff}

/* pill legend */
.legend{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}

/* figure */
figure{margin:18px 0}
figure img{border:1px solid var(--line2);border-radius:10px;box-shadow:var(--shadow)}
figcaption{font-size:.8rem;color:var(--ink-faint);margin-top:8px;font-family:var(--mono)}
.imgrow{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.imgrow img{border:1px solid var(--line);border-radius:8px;aspect-ratio:1/1;object-fit:cover;width:100%}

/* formula block */
.formula{font-family:var(--mono);font-size:.86rem;background:#080d18;border:1px solid var(--line2);
  border-radius:8px;padding:14px 16px;overflow-x:auto;color:var(--ink);line-height:1.7;margin:14px 0}
.formula .op{color:var(--gold)} .formula .v{color:var(--cyan)}

/* page toc / chapter head */
.chap-head{padding:44px 0 10px;border-bottom:1px solid var(--line)}
.chap-head .num{font-family:var(--mono);color:var(--cyan);font-size:.8rem;letter-spacing:.2em}
.chap-nav{display:flex;justify-content:space-between;gap:12px;margin:40px 0 10px;font-family:var(--mono);font-size:.85rem}
.chap-nav a{border:1px solid var(--line);padding:12px 16px;border-radius:8px;flex:1}
.chap-nav a:hover{border-color:var(--cyan-deep);background:var(--panel)}
.chap-nav .nx{text-align:right}

/* filter bar */
.filterbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:14px 0}
.filterbar input,.filterbar select{background:var(--panel);border:1px solid var(--line2);color:var(--ink);
  padding:8px 12px;border-radius:7px;font-family:var(--mono);font-size:.82rem}
.filterbar input{min-width:200px}
.fbtn{background:var(--panel);border:1px solid var(--line2);color:var(--ink-dim);padding:7px 12px;
  border-radius:7px;font-family:var(--mono);font-size:.78rem;cursor:pointer}
.fbtn.on{color:var(--cyan);border-color:var(--cyan-deep);background:rgba(47,211,255,.1)}

/* footer */
footer.foot{border-top:1px solid var(--line);margin-top:40px;padding:30px 0;color:var(--ink-faint);font-size:.84rem}
footer.foot .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
footer.foot a{color:var(--ink-dim)}

/* misc */
ul.clean{list-style:none;padding:0;margin:0}
ul.clean li{padding:7px 0;border-bottom:1px solid var(--line);display:flex;gap:10px;align-items:baseline}
ul.clean li:last-child{border:none}
.tag{font-family:var(--mono);font-size:.68rem;color:var(--cyan);border:1px solid var(--line2);
  border-radius:4px;padding:1px 6px}
.bar{height:7px;border-radius:4px;background:var(--line);overflow:hidden;min-width:60px}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan-deep),var(--cyan))}
hr.sep{border:none;border-top:1px solid var(--line);margin:30px 0}
.two-col{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:start}
@media(max-width:820px){.two-col{grid-template-columns:1fr}}
@media(max-width:720px){nav.links{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;
  background:var(--bg2);border-bottom:1px solid var(--line);padding:8px}
  nav.links.open{display:flex} .navtoggle{display:block;margin-left:auto;background:none;border:1px solid var(--line2);
  color:var(--ink);border-radius:6px;padding:6px 10px;cursor:pointer;font-family:var(--mono)}}