:root{--bg:#0b0d10;--char:#111418;--panel:#141922;--panel2:#1a2130;--line:#263247;--blue:#1e5bff;--cyan:#00e5ff;--white:#f4f8ff;--mute:#8fa3bf;--red:#ff4d6d}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--white);font-family:'Space Grotesk',system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 14px;border-radius:10px;border:1px solid var(--line);background:var(--panel2);color:var(--white);font-weight:600;font-size:14px;cursor:pointer;text-decoration:none;white-space:nowrap;transition:border-color .15s,background .15s,transform .1s}
.btn:hover{border-color:#3a4c6a;background:#1f2838}
.btn:active{transform:translateY(1px)}
.btn.primary{background:linear-gradient(180deg,#2a6bff,#1e5bff);border-color:#4b82ff;box-shadow:0 0 0 1px rgba(0,229,255,.15),0 6px 20px rgba(30,91,255,.35)}
.btn.primary:hover{background:linear-gradient(180deg,#3a78ff,#2563ff)}
.btn.cyan{background:var(--cyan);color:#06222a;border-color:var(--cyan)}
.btn.small{padding:6px 10px;font-size:13px;border-radius:8px}
.btn.icon{padding:7px 9px}
.btn.on{border-color:var(--cyan);color:var(--cyan);background:#0f2430}
.btn[disabled]{opacity:.4;cursor:default}
.sparks-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px 5px 7px;border-radius:999px;background:#0e1520;border:1px solid #23344f;font-size:13px;color:var(--mute);white-space:nowrap}
.sparks-chip b{color:var(--white);font-weight:700}
.spark-ico{display:block;filter:drop-shadow(0 0 4px rgba(0,229,255,.5))}
.demo-note{font-size:11px;color:var(--cyan);letter-spacing:.04em;white-space:nowrap}
.mark{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--white)}
.mark svg{display:block}
.mark .w{font-weight:700;letter-spacing:.2em;font-size:15px}
.mark .w small{font-weight:500;letter-spacing:.18em;color:var(--cyan);margin-left:6px;font-size:11px}
.modal{position:fixed;inset:0;background:rgba(5,7,10,.72);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal[hidden]{display:none}
.modal .box{width:min(640px,100%);max-height:90vh;overflow:auto;background:var(--char);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.modal h2{margin:0 0 4px;font-size:20px;letter-spacing:.02em}
.modal .sub{color:var(--mute);font-size:13px;margin:0 0 14px}
.modal .x{float:right}
textarea.code{width:100%;min-height:90px;background:#0b0f15;border:1px solid var(--line);border-radius:10px;padding:10px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;color:#bfe9ff;word-break:break-all;resize:vertical}
input.txt,select.sel{background:#0b0f15;border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--white);min-width:0}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);background:#0f2430;border:1px solid var(--cyan);color:var(--white);padding:10px 16px;border-radius:12px;font-weight:600;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:80;max-width:90vw;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.tcards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.tcard{text-align:left;padding:12px;border-radius:12px;border:1px solid var(--line);background:var(--panel);cursor:pointer;color:var(--white)}
.tcard:hover{border-color:var(--cyan)}
.tcard b{display:block;font-size:15px;margin-bottom:4px}
.tcard span{font-size:12px;color:var(--mute);line-height:1.35;display:block}
.tcard .pic{height:70px;border-radius:8px;margin-bottom:8px;background:#0b0f15;display:block;overflow:hidden}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.chip{font-size:12px;padding:4px 9px;border-radius:999px;background:#0f2430;border:1px solid #1d4a5c;color:#bff4ff}
.beta{font-size:10px;letter-spacing:.12em;padding:2px 6px;border-radius:6px;border:1px solid var(--cyan);color:var(--cyan);vertical-align:middle;margin-left:6px}
@media (max-width:560px){.tcards{grid-template-columns:1fr}}