/* Samadhan AI Exam - shared theme (loaded after each page's own styles) */
:root{--bg:#f3f5fb;--card:#fff;--tx:#161a2e;--mu:#5b6380;--bd:#e0e4f0;--ac:#0a0e94;--ok:#12874a;--bad:#c62f3e;--sh:0 6px 24px rgba(15,20,80,.07)}
@media (prefers-color-scheme:dark){:root{--bg:#0f1220;--card:#181d33;--tx:#eceffa;--mu:#a0a9c6;--bd:#2a3150;--ac:#5b6bff;--ok:#4cc98a;--bad:#ff6b7a;--sh:0 6px 24px rgba(0,0,0,.35)}}
body{min-height:100vh;background:radial-gradient(900px 380px at 50% -160px,color-mix(in srgb,var(--ac) 16%,transparent),transparent),var(--bg)}
.hdr{position:sticky;top:0;z-index:15;background:#fff;border-bottom:3px solid #0a0e94;box-shadow:0 2px 12px rgba(10,20,80,.08)}
.hdr-in{max-width:1000px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:14px}
.hdr img{height:40px;width:auto;display:block}
.hdr .sep{width:1px;height:34px;background:#d9ddea}
.hdr b{display:block;color:#0a0e94;font-size:1.2rem;letter-spacing:.3px;line-height:1.2}
.hdr small{color:#6b7390;font-size:.78rem}
.hdr .tag{margin-left:auto;font-size:.78rem;font-weight:600;color:#0a0e94;background:#e9ebff;padding:4px 12px;border-radius:99px;white-space:nowrap}
@media(max-width:520px){.hdr .sep,.hdr small{display:none}.hdr b{font-size:1rem}}
.card{border-radius:16px;box-shadow:var(--sh)}
button,a.btn{border-radius:10px;transition:transform .12s,filter .12s,box-shadow .12s}
button:hover:not(:disabled),a.btn:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 4px 12px rgba(10,14,148,.25)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--ac);outline-offset:0;border-color:transparent}
input[type=text],input,select,textarea{border-radius:10px}
h1{color:var(--ac);letter-spacing:.2px}
.steps{display:flex;gap:8px;margin:0 0 16px;flex-wrap:wrap}
.steps span{flex:1 1 90px;text-align:center;padding:7px 10px;border-radius:99px;font-size:.82rem;font-weight:600;background:var(--card);border:1px solid var(--bd);color:var(--mu)}
.steps .on{background:var(--ac);color:#fff;border-color:var(--ac)}
.steps .dn{color:var(--ok);border-color:var(--ok)}
#s1 ul{background:color-mix(in srgb,var(--ac) 7%,transparent);border-radius:12px;padding:14px 14px 14px 34px;margin:8px 0 14px}
.prog{height:7px;background:var(--bd);border-radius:7px;overflow:hidden;margin:12px 0 4px}
.prog i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ac),#3b82f6);transition:width .25s}
.timer{background:var(--bg);border:1px solid var(--bd);padding:2px 14px;border-radius:10px;display:inline-block}
.opt{display:flex;align-items:center;gap:12px;padding:13px 16px;border-radius:12px;transition:border-color .12s,background .12s}
.opt input{display:none}
.opt .ltr{flex:0 0 28px;height:28px;border-radius:8px;background:var(--bg);border:1px solid var(--bd);display:grid;place-items:center;font-size:.85rem;color:var(--mu)}
.opt.sel .ltr{background:var(--ac);color:#fff;border-color:var(--ac)}
.dots span{border-radius:8px}
.ftr{text-align:center;color:var(--mu);font-size:.8rem;padding:6px 16px 26px}