:root{--bg:#FBF8F1;--surface:#fff;--fg:#1B231F;--muted:#56605A;--line:#E4DDCC;--green:#0B5D47;--green-soft:#E1EEE8;--marigold:#C7660B;--marigold-soft:#FBEBD6;--red:#B42318}
@media (prefers-color-scheme:dark){:root{--bg:#111612;--surface:#18201B;--fg:#ECF0EC;--muted:#A2ADA6;--line:#2B352F;--green:#45B48E;--green-soft:#16322A;--marigold:#F2A453;--marigold-soft:#3A2814;--red:#F97066;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:18px/1.55 Mukta,'Noto Sans Devanagari',system-ui,sans-serif}
header,main,footer{max-width:520px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
header{padding-block:18px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg)}
.logo .mark{width:40px;height:40px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:700}
.logo b{font-family:'Yatra One',Mukta,serif;font-size:26px;font-weight:400}
main{display:flex;flex-direction:column;gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:10px}
h1{margin:0;font-size:28px;line-height:1.2} h2{margin:0;font-size:20px}
p{margin:0}.muted{color:var(--muted)}.small{font-size:15px}
.stack{display:flex;flex-direction:column;gap:12px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600}
input{font:inherit;font-size:20px;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;background:var(--surface);color:var(--fg)}
.btn{font:inherit;font-weight:700;border:0;border-radius:14px;background:var(--green);color:#fff;min-height:52px;padding:0 20px;cursor:pointer}
.btn.big{min-height:60px;font-size:22px}.btn:disabled{opacity:.6}
.link{background:none;border:0;color:var(--muted);text-decoration:underline;font:inherit;font-size:15px;cursor:pointer;padding:6px 0}
.err{background:#FDE7E4;color:#7A1A12;padding:10px 12px;border-radius:10px}
.state{font-size:20px}.state.ok b{color:var(--green)}.state.bad{color:var(--red);font-weight:700}
.price{display:flex;flex-direction:column;align-items:center;background:var(--green-soft);border-radius:16px;padding:16px;margin-top:6px}
.price b{font-size:44px;color:var(--green);line-height:1.1}.price small{color:var(--muted)}
.msg{min-height:1.4em;font-weight:600}
.row{display:flex;justify-content:space-between;padding:8px 0;border-top:1px solid var(--line)}
footer{color:var(--muted);font-size:14px;padding-block:24px;text-align:center}
footer a{color:var(--muted)}