*{box-sizing:border-box} :root{--bg:#17212b;--panel:#243442;--green:#40cf91;--white:#f0f4f8;--muted:#aab8c5;--red:#ff7777}
body{margin:0;background:var(--bg);color:var(--white);font:15px Arial,sans-serif;padding-bottom:112px}
header{padding:18px 16px 12px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.brand{font-size:22px;font-weight:800;color:var(--green);letter-spacing:.5px}.brand span{color:var(--white)}
#headline{text-align:right;color:var(--green);font-weight:bold;font-size:12px;line-height:1.5}
nav{display:flex;gap:6px;padding:0 10px 12px;position:sticky;top:0;background:var(--bg);z-index:3}
button{border:0;border-radius:8px;padding:12px;background:var(--panel);color:var(--white);font-weight:bold}
.tab{flex:1}.tab.active{background:var(--green);color:var(--bg)}
main{padding:0 10px}.page{display:none}.page.active{display:block}
.panel{background:var(--panel);border-radius:12px;padding:16px;margin-bottom:12px}
h2{font-size:14px;color:var(--green);margin:0 0 14px;letter-spacing:.4px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:flex;flex-direction:column;gap:6px;color:var(--muted);font-size:12px}
input{width:100%;min-width:0;background:#17212b;border:1px solid #526373;border-radius:7px;padding:12px;color:var(--white);font-size:16px}
.result{line-height:1.65}.big{font-size:19px;font-weight:bold;color:var(--green);margin-top:14px}.net{font-size:23px}
#tax{color:var(--muted)}#save{width:100%;margin-top:18px;background:var(--green);color:var(--bg);padding:14px}
.hint{font-size:11px;color:var(--muted);margin-bottom:0}
.trade{border-top:1px solid #526373;padding:12px 0;line-height:1.6}.trade button{background:#8b3030;margin-top:6px}
.statline{padding:8px 0;border-bottom:1px solid #526373;display:flex;justify-content:space-between;gap:10px}
.ad{position:fixed;bottom:0;left:0;right:0;min-height:86px;background:#101820;border-top:1px solid #526373;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:10;padding:8px 12px calc(8px + env(safe-area-inset-bottom));text-align:center}
.ad span{font-size:9px;color:var(--muted);letter-spacing:1px}.ad strong{color:var(--green);font-size:14px}.ad small{color:var(--muted);font-size:10px}
@media(min-width:700px){main{max-width:900px;margin:auto}.grid{grid-template-columns:repeat(4,1fr)}header{max-width:900px;margin:auto}}

nav{overflow-x:auto}
.tab{min-width:max-content}
#profitChart{display:block;width:100%;height:280px}
@media(max-width:520px){.tab{padding:11px 13px;font-size:12px}}