:root { --bg:#0b0d10; --panel:#12161c; --text:#e7edf6; --muted:#9aa6b2; --radius:18px; }
*{box-sizing:border-box}html,body{height:100%;background:var(--bg);color:var(--text)}body{font-family:ui-sans-serif,system-ui,Segoe UI,Roboto,Helvetica,Arial}
.gfui-noise{position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 10% 10%,rgba(255,255,255,.04),transparent 40%),radial-gradient(circle at 90% 20%,rgba(255,255,255,.03),transparent 40%);opacity:.2;mix-blend-mode:soft-light;z-index:100}
.gfui-app{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto}
.gfui-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);background:linear-gradient(180deg,rgba(7,9,12,.85),rgba(7,9,12,.35));border-bottom:1px solid rgba(255,255,255,.06)}
.gfui-brand{display:flex;align-items:center;gap:12px}.gfui-brand h1{font-weight:800;letter-spacing:.02em;margin:0}.logo-glow{width:14px;height:14px;border-radius:50%;box-shadow:0 0 20px #2bc6ff,0 0 8px #2bc6ff inset;background:radial-gradient(circle,#2bc6ff,#043a4a);animation:pulse 2.8s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 26px #2bc6ff,0 0 12px #2bc6ff inset}}
.gfui-nav .nav-btn{background:transparent;color:var(--muted);border:0;padding:10px 14px;border-radius:999px;transition:color .2s ease,background .2s ease}.gfui-nav .nav-btn.active{color:var(--text);background:rgba(255,255,255,.06)}
.gfui-main{padding:16px 24px}.gfui-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.gfui-card{grid-column:span 12;position:relative;border-radius:var(--radius);background:linear-gradient(180deg,var(--panel),#0e1116);overflow:clip;transform-style:preserve-3d;isolation:isolate;will-change:transform,filter;transition:transform .18s ease}
@media (min-width:640px){.gfui-card{grid-column:span 6}}@media (min-width:1024px){.gfui-card{grid-column:span 4}}
.gfui-card .card-bg{position:absolute;inset:0;background:radial-gradient(120% 140% at 80% 20%,color-mix(in oklab,var(--accent) 40%,transparent),transparent 50%),linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));filter:blur(2px);z-index:0}
.gfui-card .card-reflection{position:absolute;inset:-20% -20% auto -20%;height:40%;background:linear-gradient(to bottom,rgba(255,255,255,.12),transparent 60%);transform:translateZ(40px) rotateX(5deg);pointer-events:none}
.gfui-card .neon-border{position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:0 0 0 1px rgba(255,255,255,.06) inset,0 0 24px color-mix(in oklab,var(--accent) 50%,transparent),0 0 60px color-mix(in oklab,var(--accent) 20%,transparent);opacity:.7}
.gfui-card .depth-shadow{position:absolute;inset:0;translate:0 22px;filter:blur(22px);background:radial-gradient(120% 50% at 50% 120%,rgba(0,0,0,.6),transparent);z-index:-1}
.gfui-card .card-inner{position:relative;z-index:2;padding:16px;display:grid;gap:10px}
.gfui-card .icon{width:44px;height:44px;border-radius:12px;background:radial-gradient(circle at 30% 30%,#fff6,transparent),linear-gradient(180deg,color-mix(in oklab,var(--accent) 40%,#0a0a0a),#0a0a0a);box-shadow:0 0 20px color-mix(in oklab,var(--accent) 30%,transparent)}
.gfui-card .title{margin:2px 0 0;font-weight:800;letter-spacing:.02em}.gfui-card .excerpt{color:var(--muted);line-height:1.6}
.gfui-card .cta{justify-self:start;background:radial-gradient(circle at 30% 30%,#fff8,transparent),linear-gradient(180deg,var(--accent),color-mix(in oklab,var(--accent) 65%,#071018));color:#0a0f14;border:0;padding:10px 16px;border-radius:12px;font-weight:700;box-shadow:0 10px 24px color-mix(in oklab,var(--accent) 35%,transparent);transition:transform .12s ease,filter .2s ease}
.gfui-card:hover .cta{transform:translateY(-1px)}.gfui-modal[aria-hidden="true"]{display:none}.gfui-modal[aria-hidden="false"]{display:block}
.gfui-modal{position:fixed;inset:0;z-index:50}.gfui-modal .modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(6px) saturate(120%);opacity:0}
.gfui-modal .modal-wrap{position:absolute;inset:0;display:grid;place-items:center;padding:24px}.modal-panel{position:relative;width:min(960px,94vw);border-radius:20px;overflow:clip;background:linear-gradient(180deg,#0c1016,#0b0e13);border:1px solid rgba(255,255,255,.06);box-shadow:0 40px 80px rgba(0,0,0,.55),0 4px 20px rgba(0,0,0,.35),0 0 0 1px rgba(255,255,255,.04) inset;transform-origin:50% 58%;scale:.88;translate:0 40px;opacity:0}
.modal-neon{position:absolute;inset:-2px;border-radius:inherit;pointer-events:none;box-shadow:0 0 34px color-mix(in oklab,var(--accent) 35%,transparent) inset,0 0 80px color-mix(in oklab,var(--accent) 30%,transparent);opacity:.6}
.modal-depth{position:absolute;inset:0;translate:0 26px;filter:blur(28px);background:radial-gradient(120% 70% at 50% 120%,rgba(0,0,0,.7),transparent);z-index:-1}
.modal-header{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.06)}.modal-content{padding:20px}.modal-actions{padding:16px 20px;display:flex;gap:12px;justify-content:flex-end;border-top:1px solid rgba(255,255,255,.06)}
.btn{padding:10px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:transparent;color:var(--text)}.btn.primary{background:var(--accent);color:#081117;border-color:color-mix(in oklab,var(--accent) 50%,#000)}
.modal-close{position:absolute;top:10px;right:10px;width:36px;height:36px;border-radius:50%;border:0;background:rgba(255,255,255,.06)}
.modal-close::before,.modal-close::after{content:'';position:absolute;inset:17% 48%;background:#e8eef7;width:2px;border-radius:2px}.modal-close::before{rotate:45deg}.modal-close::after{rotate:-45deg}
.reveal-prepare{opacity:0;transform:translateY(24px)}.reveal-in{opacity:1;transform:translateY(0);transition:opacity .5s ease,transform .5s ease}