:root{
  --bg:#f7efe6; --card:#fffaf4; --ink:#3b2f2a; --muted:#7a6a61;
  --accent:#c9774a; --accent-d:#a95f36; --sage:#8fa58a; --line:#ead9c8; --err:#b5523b;
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  min-height:100vh; background:radial-gradient(circle at 20% 0%,#fdf6ee 0,var(--bg) 55%);
  color:var(--ink); font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  display:flex; flex-direction:column; align-items:center;
  padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
.wrap{width:100%; max-width:440px; padding:28px 20px 8px}
.brand{text-align:center; margin-bottom:18px}
.logo{width:64px;height:64px;margin:0 auto 8px;border-radius:50%;display:grid;place-items:center;
  background:#fff;border:2px solid var(--line);font-size:32px;box-shadow:0 4px 14px rgba(160,110,70,.12)}
h1{font-family:Georgia,"Times New Roman",serif;font-weight:600;font-size:32px;margin:0;letter-spacing:.3px}
.tag{margin:4px 0 0;color:var(--muted);font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px 20px;
  box-shadow:0 10px 30px rgba(140,95,60,.10)}
h2{font-family:Georgia,serif;font-size:22px;margin:0 0 6px}
.lead{margin:0 0 16px;color:var(--muted)}
label{display:block;font-weight:600;font-size:14px;margin:14px 0 6px}
.opt{font-weight:400;color:var(--muted)}
input{width:100%;font-size:18px;padding:14px 14px;border-radius:12px;border:1.5px solid var(--line);
  background:#fff;color:var(--ink);outline:none;transition:border-color .15s, box-shadow .15s}
#code{text-transform:uppercase;letter-spacing:2px;font-weight:700;text-align:center}
#code::placeholder{letter-spacing:1px;font-weight:400}
input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(201,119,74,.18)}
input.bad{border-color:var(--err);animation:shake .35s}
@keyframes shake{25%{transform:translateX(-6px)}50%{transform:translateX(6px)}75%{transform:translateX(-3px)}}
button,.btn{display:block;width:100%;margin-top:18px;padding:15px;border:0;border-radius:14px;
  background:var(--accent);color:#fff;font-size:18px;font-weight:700;text-align:center;text-decoration:none;cursor:pointer;
  box-shadow:0 6px 16px rgba(201,119,74,.35)}
button:active,.btn:active{background:var(--accent-d);transform:translateY(1px)}
button[disabled]{opacity:.7}
.msg{min-height:1.5em;margin:12px 0 0;text-align:center;font-size:15px}
.msg.err{color:var(--err)}
.unlocked{text-align:center}
.big{font-size:52px;line-height:1}
.small{font-size:13px;color:var(--muted)}
button.link{background:none;box-shadow:none;color:var(--accent-d);font-size:15px;font-weight:600;padding:8px;margin-top:8px}
.follow{text-align:center;margin:20px 0 4px;color:var(--muted)}
.follow a{color:var(--accent-d);font-weight:700;text-decoration:none}
.foot{width:100%;max-width:440px;padding:6px 24px 28px;text-align:center;color:var(--muted);font-size:12px}
.foot p{margin:6px 0}