:root{--void:#0A0E1F;--deep:#141A3A;--card:#1A2144;--purple:#7C3AED;--cyan:#06D6C4;--violet:#A77BFF;--text:#F5F7FF;--muted:#9FB3D9;--green:#00E5A0;--body:#D7DEF0;--line:rgba(159,179,217,.15);--hdr:rgba(10,14,31,.92);--sel:rgba(124,58,237,.5)}
html[data-theme="light"]{--void:#F6F7FB;--deep:#FFFFFF;--card:#EEF0F7;--cyan:#0AA89C;--violet:#6D3AE0;--text:#0F1428;--muted:#5B6782;--body:#2A3350;--line:rgba(15,20,40,.12);--hdr:rgba(246,247,251,.92);--sel:rgba(124,58,237,.25);color-scheme:light}
html[data-theme="light"] .card,html[data-theme="light"] .band,html[data-theme="light"] .legal tr,html[data-theme="light"] .callout{box-shadow:0 1px 2px rgba(15,20,40,.06),0 8px 24px rgba(15,20,40,.06)}
html[data-theme="light"] .btn.ghost{color:var(--text)}
html[data-theme="light"] .phone{box-shadow:0 30px 60px rgba(15,20,40,.25)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--void);color:var(--text);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--cyan);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:960px;margin:0 auto;padding:0 24px}
header{position:-webkit-sticky;position:sticky;top:0;background:var(--hdr);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:10}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:22px;letter-spacing:-.5px;color:var(--text)}.logo .x{color:var(--cyan)}.logo .de{color:var(--violet)}
.logo small{font-weight:500;font-size:11px;letter-spacing:2px;color:var(--muted);margin-left:8px;vertical-align:middle}
nav a{color:var(--muted);margin-left:22px;font-size:14px;font-weight:500}nav a:hover{color:var(--text);text-decoration:none}
.hero{padding:96px 0 64px;text-align:center}
.hero h1{font-size:clamp(34px,6vw,58px);line-height:1.08;letter-spacing:-1.5px;margin:0 0 18px;font-weight:800}
.hero h1 span{color:var(--cyan)}@supports((-webkit-background-clip:text) or (background-clip:text)){.hero h1 span{background:linear-gradient(90deg,var(--purple),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}}
.hero p{font-size:19px;color:var(--muted);max-width:640px;margin:0 auto 32px}
.btn{display:inline-block;padding:14px 26px;border-radius:14px;font-weight:700;color:#fff;background:linear-gradient(90deg,var(--purple),var(--cyan))}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:var(--card);color:var(--text);margin-left:10px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:48px 0}
.card{background:var(--deep);border-radius:18px;padding:24px}
.card h3{margin:0 0 8px;font-size:17px}.card p{margin:0;color:var(--muted);font-size:15px}
.card .ic{width:42px;height:42px;border-radius:12px;background:var(--card);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--cyan)}.card .ic svg{width:22px;height:22px}
.band{background:var(--deep);border-radius:22px;padding:36px;margin:40px 0;display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.band h2{margin:0 0 10px;font-size:26px;letter-spacing:-.5px}.band p{color:var(--muted);margin:0}
.band ul{margin:14px 0 0;padding-left:18px;color:var(--muted)}.band li{margin:6px 0}
@media(max-width:720px){.band{grid-template-columns:1fr;padding:26px}nav a{margin-left:14px}}
.legal{max-width:760px;margin:0 auto;padding:56px 24px 80px}
.legal h1{font-size:36px;letter-spacing:-1px;margin:0 0 6px}.legal .meta{color:var(--muted);font-size:14px;margin-bottom:36px}
.legal h2{font-size:21px;margin:38px 0 10px;letter-spacing:-.3px}.legal h3{font-size:16px;margin:22px 0 6px}
.legal p,.legal li{color:var(--body)}.legal ul{padding-left:22px}.legal li{margin:6px 0}
.legal table{width:100%;border-collapse:collapse;font-size:14.5px;margin:14px 0}
.legal th,.legal td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.legal th{color:var(--muted);font-weight:600}
.callout{background:var(--deep);border-left:3px solid var(--cyan);padding:14px 18px;border-radius:10px;margin:18px 0;color:var(--body)}
footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
footer a{color:var(--muted);margin-right:18px}footer a:hover{color:var(--text)}

/* --- phones --- */
.menu-btn{display:none;background:none;border:1px solid rgba(159,179,217,.3);color:var(--text);border-radius:10px;padding:8px 12px;font-size:14px;cursor:pointer}
@media(max-width:640px){
  header .wrap{height:58px}
  .menu-btn{display:inline-block}
  nav{display:none;position:absolute;left:0;right:0;top:58px;background:var(--deep);border-bottom:1px solid var(--line);padding:8px 24px 14px}
  nav.open{display:block}
  nav a{display:block;margin:0;padding:12px 0;font-size:16px;border-top:1px solid var(--line)}
  nav a:first-child{border-top:0}
  .hero{padding:56px 0 40px}.hero p{font-size:17px}
  .btn{display:block;margin:10px 0 0}.btn.ghost{margin-left:0}
  .grid{gap:12px;margin:32px 0}.card{padding:20px}
  .legal{padding:36px 20px 60px}.legal h1{font-size:28px}.legal h2{font-size:19px}
  .legal table,.legal tbody,.legal tr,.legal td{display:block;width:100%}
  .legal thead{display:none}
  .legal tr{background:var(--deep);border-radius:12px;padding:6px 14px;margin:0 0 10px}
  .legal td{border:0;padding:8px 0}
  .legal td::before{content:attr(data-label);display:block;font-size:12px;color:var(--muted);font-weight:600;margin-bottom:2px}
}
@media(max-width:380px){.logo{font-size:19px}.logo small{display:none}}
img,svg{max-width:100%;height:auto}
button,input{font:inherit}
::selection{background:var(--sel)}

/* --- theme switch --- */
.hdr-right{display:flex;align-items:center;gap:14px}
@media(min-width:641px){nav{display:flex;align-items:center}}
.theme{width:54px;height:30px;border-radius:15px;border:1px solid var(--line);background:var(--card);position:relative;cursor:pointer;padding:0;flex:none}
.theme::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--purple),var(--cyan));transition:transform .25s ease}
.theme .sun,.theme .moon{position:absolute;top:50%;transform:translateY(-50%);line-height:0;color:var(--muted)}.theme svg{display:block}
.theme .sun{right:8px}.theme .moon{left:8px}
html[data-theme="light"] .theme::after{transform:translateX(24px)}
body{transition:background-color .25s ease,color .25s ease}

/* --- hero with phone --- */
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;text-align:left}
.hero .copy p{margin-left:0}
.phone-wrap{display:flex;justify-content:center;perspective:1200px}
.phone{width:250px;aspect-ratio:390/844;border-radius:40px;background:#0A0E1F;border:8px solid #1a1f33;box-shadow:0 0 0 2px #2a3150,0 30px 60px rgba(0,0,0,.55),inset 0 0 0 1px rgba(255,255,255,.04);position:relative;overflow:hidden;transform-style:preserve-3d;animation:float 6s ease-in-out infinite,sway 8s ease-in-out infinite}
.phone img{width:100%;height:100%;display:block;object-fit:cover}
.phone::before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:84px;height:24px;border-radius:14px;background:#000;z-index:2}
.phone::after{content:"";position:absolute;inset:0;border-radius:32px;background:linear-gradient(115deg,rgba(255,255,255,.07),transparent 45%);pointer-events:none;z-index:3}
@keyframes float{0%,100%{translate:0 0}50%{translate:0 -14px}}
@keyframes sway{0%,100%{rotate:y -9deg}50%{rotate:y 9deg}}
@media(prefers-reduced-motion:reduce){.phone{animation:none}}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;text-align:center;gap:28px}.phone{width:210px}.hero .copy p{margin:0 auto 32px}}
@media(max-width:640px){.hero{padding:40px 0 32px}.phone{width:190px}}