/* ════════════════════════════════════════════════════════════
   R6G NEXUS OS — 2027 DESIGN SYSTEM
   custom fonts · theme engine · layered fx · zero emoji
   ════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@400;600;800;900&family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── THEME ENGINE ─────────────────────────────────────────── */
:root,[data-theme="cyber"]{
  --bg:#030308; --bg2:#090914; --text:#EAF0FF; --mut:#7E88A6;
  --acc:#00F0FF; --acc2:#FF2E7E; --acc3:#00FF9C;
  --glass:rgba(255,255,255,.035); --line:rgba(0,240,255,.16);
  --glow:0 0 22px rgba(0,240,255,.35); --glow2:0 0 22px rgba(255,46,126,.3);
  --font-d:'Unbounded',sans-serif; --font-b:'Space Grotesk',sans-serif; --font-m:'JetBrains Mono',monospace;
}
[data-theme="blood"]{--acc:#FF3355;--acc2:#FF9A00;--acc3:#FF6B81;--line:rgba(255,51,85,.2);--glow:0 0 22px rgba(255,51,85,.35)}
[data-theme="matrix"]{--acc:#00FF66;--acc2:#00B84C;--acc3:#B4FFD1;--line:rgba(0,255,102,.18);--glow:0 0 22px rgba(0,255,102,.3)}
[data-theme="solar"]{--acc:#FFB800;--acc2:#FF6A00;--acc3:#FFE45C;--line:rgba(255,184,0,.2);--glow:0 0 22px rgba(255,184,0,.35)}

/* ── RESET / BASE ─────────────────────────────────────────── */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-b);overflow-x:hidden}
body.loading{overflow:hidden}
@media (pointer:fine){body,button,a,input{cursor:none}}
::selection{background:var(--acc);color:#000}
::-webkit-scrollbar{width:9px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--acc),var(--acc2));border-radius:6px}
a{color:inherit;text-decoration:none}
button{font-family:inherit;background:none;border:none;color:inherit}
.mono{font-family:var(--font-m)}
kbd{background:var(--glass);border:1px solid var(--line);border-bottom-width:3px;border-radius:6px;padding:2px 8px;font-family:var(--font-m);font-size:.72rem;color:var(--acc)}
.hl{color:var(--acc3);font-family:var(--font-m)}
.grad{background:linear-gradient(90deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.ico{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ── BACKGROUND LAYERS ────────────────────────────────────── */
#net{position:fixed;inset:0;z-index:-4;opacity:.55}
.grid-floor{position:fixed;left:-50%;right:-50%;bottom:-14%;height:48vh;z-index:-3;pointer-events:none;
  background:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 64px),
             repeating-linear-gradient(0deg,var(--line) 0 1px,transparent 1px 46px);
  transform:perspective(620px) rotateX(62deg);animation:gridmove 2.2s linear infinite;
  -webkit-mask-image:linear-gradient(transparent,#000 32%);mask-image:linear-gradient(transparent,#000 32%)}
body.nogrid .grid-floor{display:none}
@keyframes gridmove{to{background-position:0 0,0 46px}}
.aurora{position:fixed;border-radius:50%;filter:blur(130px);z-index:-5;opacity:.26;animation:drift 18s ease-in-out infinite alternate}
.a1{width:46vw;height:46vw;top:-14vw;left:-10vw;background:var(--acc)}
.a2{width:38vw;height:38vw;bottom:-10vw;right:-8vw;background:var(--acc2);animation-delay:-7s}
.a3{width:26vw;height:26vw;top:40%;left:55%;background:var(--acc3);animation-delay:-12s}
@keyframes drift{to{transform:translate(6vw,4vh) scale(1.18)}}
.scanlines{position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.05;background:repeating-linear-gradient(0deg,#fff 0 1px,transparent 1px 3px)}
.noise{position:fixed;inset:0;z-index:59;pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ── CUSTOM CURSOR ────────────────────────────────────────── */
#cursor-dot,#cursor-ring{position:fixed;top:0;left:0;pointer-events:none;z-index:999;border-radius:50%;transform:translate(-50%,-50%)}
#cursor-dot{width:6px;height:6px;background:var(--acc);box-shadow:0 0 8px var(--acc)}
#cursor-ring{width:36px;height:36px;border:1px solid var(--acc);transition:width .25s,height .25s,border-color .25s;mix-blend-mode:screen}
#cursor-ring.hov{width:66px;height:66px;border-color:var(--acc2)}
@media (pointer:coarse){#cursor-dot,#cursor-ring{display:none}}

/* ── BOOT PRELOADER ───────────────────────────────────────── */
#preloader{position:fixed;inset:0;background:var(--bg);z-index:1000;display:flex;align-items:center;justify-content:center;transition:opacity .7s}
#preloader.off{opacity:0;pointer-events:none}
.boot-box{width:min(560px,90vw)}
.boot-logo{font-family:var(--font-d);font-weight:900;font-size:2.6rem;color:var(--acc);text-shadow:var(--glow);letter-spacing:.3em;margin-bottom:1.2rem}
#bootlog{font-family:var(--font-m);font-size:.76rem;color:var(--acc3);min-height:10rem;line-height:1.6}
.boot-bar{height:4px;background:var(--glass);border:1px solid var(--line);margin-top:1rem;overflow:hidden}
#bootfill{height:100%;width:0;background:linear-gradient(90deg,var(--acc),var(--acc2));box-shadow:var(--glow)}
.boot-pct{font-family:var(--font-m);font-size:.68rem;color:var(--mut);margin-top:.4rem;text-align:right}

/* ── NAV ─────────────────────────────────────────────────── */
#nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;gap:1.4rem;padding:.85rem 2.2rem;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);background:rgba(3,3,8,.55);border-bottom:1px solid var(--line)}
.logo{font-family:var(--font-d);font-weight:800;font-size:1.15rem;color:var(--acc);text-shadow:var(--glow);letter-spacing:.14em}
.logo-tag{font-family:var(--font-m);font-size:.56rem;color:var(--mut);vertical-align:super;margin-left:.5rem;letter-spacing:.3em}
.nav-links{display:flex;gap:1.3rem;margin-left:auto}
.nav-links a{font-size:.8rem;letter-spacing:.12em;color:var(--mut);position:relative;transition:color .25s}
.nav-links a::after{content:'';position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--acc);transition:width .3s;box-shadow:var(--glow)}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:.9rem}
#clock{font-size:.72rem;color:var(--mut)}
.pill{display:inline-flex;align-items:center;gap:.45rem;border:1px solid var(--line);border-radius:99px;padding:.32rem .8rem;font-size:.66rem;font-family:var(--font-m);color:var(--acc3)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--acc3);box-shadow:0 0 10px var(--acc3);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.3}}
.palette-btn{background:var(--glass);border:1px solid var(--line);color:var(--acc);border-radius:8px;padding:.35rem .7rem;font-family:var(--font-m);font-size:.7rem;transition:.25s}
.palette-btn:hover{box-shadow:var(--glow);border-color:var(--acc)}

/* ── MODALS / PALETTE ─────────────────────────────────────── */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:flex-start;justify-content:center;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal.open{display:flex}
.modal-box{margin-top:14vh;width:min(620px,92vw);background:var(--bg2);border:1px solid var(--line);border-radius:16px;box-shadow:var(--glow);overflow:hidden;animation:fadeup .25s ease}
.palette-box input{width:100%;background:transparent;border:none;outline:none;color:var(--text);padding:1.1rem 1.3rem;font-size:.95rem;border-bottom:1px solid var(--line)}
#paletteList{max-height:320px;overflow-y:auto}
.p-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1.3rem;font-size:.85rem;border-left:2px solid transparent;color:var(--mut)}
.p-item.sel{background:var(--glass);border-left-color:var(--acc);color:var(--text)}
.p-item .k{font-family:var(--font-m);font-size:.62rem;color:var(--acc)}
.palette-foot{padding:.6rem 1.3rem;font-size:.62rem;color:var(--mut);border-top:1px solid var(--line)}
.modal-title{font-family:var(--font-d);font-size:1rem;letter-spacing:.15em;color:var(--acc);padding:1.2rem 1.4rem .4rem}
.sc-grid{padding:1rem 1.4rem 1.6rem;display:grid;grid-template-columns:1fr 1fr;gap:.9rem 2rem}
.sc-grid div{display:flex;align-items:center;gap:.6rem;font-size:.78rem;color:var(--mut)}
.sc-grid span{margin-left:auto}

/* ── HERO ─────────────────────────────────────────────────── */
.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:7.5rem 1.5rem 3rem;position:relative}
.hero-badge{font-size:.64rem;letter-spacing:.42em;color:var(--acc2);border:1px solid var(--line);padding:.55rem 1.3rem;border-radius:99px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
h1.glitch{font-family:var(--font-d);font-weight:900;font-size:clamp(4.4rem,16vw,11rem);letter-spacing:.06em;line-height:1.05;position:relative;margin-top:1.6rem}
h1.glitch::before,h1.glitch::after{content:attr(data-text);position:absolute;inset:0;overflow:hidden}
h1.glitch::before{color:var(--acc);transform:translate(-3px,-2px);clip-path:inset(12% 0 58% 0);animation:gl1 3.1s infinite steps(2,end);opacity:.85}
h1.glitch::after{color:var(--acc2);transform:translate(3px,2px);clip-path:inset(62% 0 8% 0);animation:gl2 2.7s infinite steps(2,end);opacity:.85}
@keyframes gl1{0%,88%{clip-path:inset(12% 0 58% 0)}90%{clip-path:inset(2% 0 82% 0)}94%{clip-path:inset(44% 0 30% 0)}98%{clip-path:inset(70% 0 6% 0)}}
@keyframes gl2{0%,86%{clip-path:inset(62% 0 8% 0)}90%{clip-path:inset(30% 0 52% 0)}95%{clip-path:inset(80% 0 2% 0)}}
.hero-sub{font-family:var(--font-m);font-size:clamp(.82rem,2vw,1.1rem);color:var(--acc3);margin-top:1.3rem;min-height:1.6em}
.caret{animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.hero-desc{max-width:660px;color:var(--mut);margin-top:1.2rem;font-size:.95rem;line-height:1.75}
.hero-cta{display:flex;gap:1.2rem;margin-top:2.5rem;flex-wrap:wrap;justify-content:center}

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn{position:relative;display:inline-flex;align-items:center;gap:.6rem;justify-content:center;padding:1rem 2.4rem;border-radius:10px;font-weight:600;letter-spacing:.14em;font-size:.8rem;overflow:hidden;transition:transform .25s,box-shadow .25s;border:1px solid transparent}
.btn::before{content:'';position:absolute;top:0;left:-80%;width:60%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-20deg);transition:left .5s}
.btn:hover::before{left:120%}
.btn:hover{transform:translateY(-3px)}
.btn-primary{background:linear-gradient(90deg,var(--acc),var(--acc2));color:#000;box-shadow:var(--glow)}
.btn-ghost{border-color:var(--line);color:var(--acc);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:var(--acc);box-shadow:var(--glow)}

/* ── STATS + TICKER ───────────────────────────────────────── */
.stats{display:flex;gap:3.4rem;margin-top:3.8rem;flex-wrap:wrap;justify-content:center}
.stat-num{font-family:var(--font-m);font-size:2rem;font-weight:700;color:var(--acc);text-shadow:var(--glow)}
.stat-lbl{font-size:.6rem;letter-spacing:.3em;color:var(--mut);margin-top:.35rem}
.scroll-hint{position:absolute;bottom:1.6rem;font-size:.62rem;letter-spacing:.4em;color:var(--mut);animation:bob 2s infinite}
@keyframes bob{50%{transform:translateY(8px)}}
.ticker{overflow:hidden;border-block:1px solid var(--line);background:rgba(0,0,0,.35);padding:.7rem 0}
.ticker-track{display:flex;gap:3.5rem;width:max-content;white-space:nowrap;animation:tick 26s linear infinite;font-family:var(--font-m);font-size:.7rem;letter-spacing:.25em;color:var(--mut)}
.ticker-track b{color:var(--acc);font-weight:500}
@keyframes tick{to{transform:translateX(-50%)}}

/* ── SECTIONS / GLASS ─────────────────────────────────────── */
.section{max-width:1180px;margin:0 auto;padding:6.5rem 1.6rem}
.sec-title{font-family:var(--font-d);font-weight:800;font-size:clamp(1.6rem,4.5vw,2.6rem);letter-spacing:.1em;text-align:center}
.sec-sub{text-align:center;color:var(--mut);margin:1rem 0 3rem;font-size:.92rem}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:16px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:border-color .3s,box-shadow .3s}
.glass:hover{border-color:var(--acc);box-shadow:var(--glow)}
[data-tilt]{transform-style:preserve-3d;will-change:transform}
[data-reveal]{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s ease}
[data-reveal].visible{opacity:1;transform:none}

/* ── TERMINAL ─────────────────────────────────────────────── */
.term{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:rgba(0,0,0,.62);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.term-bar{display:flex;align-items:center;gap:.45rem;padding:.65rem 1rem;background:rgba(255,255,255,.04);border-bottom:1px solid var(--line)}
.t-dot{width:11px;height:11px;border-radius:50%}
.t-dot.r{background:#FF5F56}.t-dot.y{background:#FFBD2E}.t-dot.g{background:#27C93F}
.term-title{margin-left:.6rem;font-size:.68rem;color:var(--mut)}
.term-body{padding:1.1rem 1.2rem;font-size:.76rem;line-height:1.8;height:320px;overflow:hidden}
.install-term .term-body{height:auto;font-size:.9rem}
.p-green{color:var(--acc3)}.p-cyan{color:var(--acc)}.p-pink{color:var(--acc2)}.p-dim{color:var(--mut)}.p-warn{color:#FFB800}
.copy-btn{margin-left:auto;background:var(--glass);border:1px solid var(--line);color:var(--acc);padding:.3rem .8rem;border-radius:7px;font-size:.66rem;transition:.25s}
.copy-btn:hover{box-shadow:var(--glow);border-color:var(--acc)}
.kbd-hint{text-align:center;margin-top:1.1rem;color:var(--mut);font-size:.68rem}

/* ── TELEMETRY ────────────────────────────────────────────── */
.tele-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:1.6rem}
.tele-side{display:flex;flex-direction:column;gap:1.6rem}
.card-pad{padding:1.2rem}
.side-lbl{font-size:.64rem;letter-spacing:.3em;color:var(--mut);margin-bottom:.8rem}
#chart{width:100%}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.mini{padding:1.1rem;text-align:center}
.mini-num{font-family:var(--font-m);font-size:1.3rem;color:var(--acc3);text-shadow:0 0 14px var(--acc3)}
.mini-lbl{font-size:.56rem;letter-spacing:.24em;color:var(--mut);margin-top:.4rem}

/* ── DOWNLOADS ────────────────────────────────────────────── */
.os-pill{color:var(--acc);border-color:var(--acc)}
.dl-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.5rem}
.dl-card{padding:2.2rem 1.6rem;text-align:center;position:relative}
.dl-card.detected{border-color:var(--acc3);box-shadow:0 0 30px rgba(0,255,156,.18)}
.dl-card.detected::after{content:'DETECTED';position:absolute;top:12px;right:14px;font-family:var(--font-m);font-size:.56rem;color:var(--acc3);letter-spacing:.25em}
.dl-ico{display:flex;justify-content:center;color:var(--acc);margin-bottom:1rem}
.dl-ico .ico{width:40px;height:40px}
.dl-card h3{font-family:var(--font-d);letter-spacing:.1em;font-size:.92rem}
.dl-spec{color:var(--mut);font-size:.66rem;margin:.8rem 0 1.5rem;font-family:var(--font-m)}
.dl-btn{width:100%;padding:.85rem}

/* ── FEATURES ─────────────────────────────────────────────── */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.4rem}
.feat{padding:1.9rem}
.feat-ico{color:var(--acc);margin-bottom:1rem}
.feat h3{font-family:var(--font-d);font-size:.8rem;letter-spacing:.14em;color:var(--acc);margin-bottom:.7rem}
.feat p{color:var(--mut);font-size:.82rem;line-height:1.7}

/* ── ARCHITECTURE SVG ─────────────────────────────────────── */
.arch-box{padding:2rem}
.arch-svg{width:100%}
.gs1{stop-color:var(--acc)}.gs2{stop-color:var(--acc2)}
.wire{stroke:var(--line);stroke-width:1.5;stroke-dasharray:6 6;animation:dash 1.2s linear infinite}
@keyframes dash{to{stroke-dashoffset:-12}}
.node rect{fill:rgba(0,0,0,.5);stroke:var(--acc);stroke-width:1.2}
.node text{fill:var(--text);text-anchor:middle;font-family:var(--font-d);font-size:13px;letter-spacing:.1em}
.node text.sub{fill:var(--mut);font-family:var(--font-m);font-size:9px}
.packet{fill:var(--acc3);filter:drop-shadow(0 0 6px var(--acc3))}
.packet.p2c{fill:var(--acc)}
.packet.rev{fill:var(--acc2)}
.wire-lbl{fill:var(--mut);font-size:9px;letter-spacing:.2em}

/* ── TIMELINE ─────────────────────────────────────────────── */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:2.2rem}
.timeline::before{content:'';position:absolute;left:9px;top:0;bottom:0;width:1px;background:linear-gradient(var(--acc),var(--acc2))}
.tl-item{position:relative;margin-bottom:2.2rem}
.tl-dot{position:absolute;left:-2.2rem;top:6px;width:19px;height:19px;border-radius:50%;background:var(--bg);border:2px solid var(--mut)}
.tl-item.done .tl-dot{border-color:var(--acc3);box-shadow:0 0 14px var(--acc3);background:radial-gradient(circle,var(--acc3) 0 30%,var(--bg) 35%)}
.tl-card{padding:1.4rem 1.6rem}
.tl-card h3{font-family:var(--font-d);font-size:.82rem;letter-spacing:.12em;color:var(--acc);margin-bottom:.5rem}
.tl-item.done .tl-card h3{color:var(--acc3)}
.tl-card p{color:var(--mut);font-size:.82rem;line-height:1.65}

/* ── ACCORDION ────────────────────────────────────────────── */
.acc{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:1rem}
.acc-head{width:100%;display:flex;justify-content:space-between;align-items:center;padding:1.2rem 1.5rem;font-size:.92rem;font-weight:600;letter-spacing:.04em;color:var(--text)}
.acc-x{color:var(--acc);font-family:var(--font-m);transition:transform .35s}
.acc-item.open .acc-x{transform:rotate(45deg)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .45s ease}
.acc-item.open .acc-body{max-height:240px}
.acc-body p{padding:0 1.5rem 1.4rem;color:var(--mut);font-size:.85rem;line-height:1.7}

/* ── FOOTER / TOASTS ──────────────────────────────────────── */
.footer{text-align:center;padding:4rem 1.5rem 3rem;border-top:1px solid var(--line);margin-top:4rem}
.foot-logo{font-family:var(--font-d);font-weight:800;color:var(--acc);letter-spacing:.2em}
.foot-line{font-size:.62rem;letter-spacing:.25em;color:var(--mut);margin-top:1rem}
.foot-keys{font-size:.62rem;color:var(--mut);margin-top:.6rem}
#toasts{position:fixed;bottom:1.5rem;right:1.5rem;z-index:300;display:flex;flex-direction:column;gap:.8rem}
.toast{background:var(--bg2);border:1px solid var(--line);border-left:3px solid var(--acc3);border-radius:10px;padding:.9rem 1.3rem;font-family:var(--font-m);font-size:.72rem;color:var(--text);box-shadow:var(--glow);animation:fadeup .3s ease;max-width:320px}
.toast.err{border-left-color:var(--acc2)}
@keyframes fadeup{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width:960px){
  .nav-links{display:none}
  .tele-grid{grid-template-columns:1fr}
  .sc-grid{grid-template-columns:1fr}
  #clock{display:none}
}