:root{--c-primary:#b91c1c;--c-link:#2563eb;--c-text:#111827;--c-muted:#6b7280;--c-border:#353a46;--radius:14px}
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;color:var(--c-text);background:#f9fafb;margin:0;padding:24px}
.container{max-width:520px;margin:0 auto}
.card{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:20px;box-shadow:0 10px 20px rgba(0,0,0,.04)}
h1{margin:0 0 12px 0;font-size:22px}
label{display:block;font-size:14px;color:var(--c-muted);margin:10px 0 6px}
input{width:100%;padding:10px 12px;border:1px solid var(--c-border);border-radius:10px;font-size:15px;outline:none;background:#fff}
input:focus{border-color:#000000;box-shadow:0 0 0 4px rgba(147,197,253,.25)}
.actions{display:flex;gap:10px;align-items:center;margin-top:14px}
button,.btn{display:inline-block;border:0;border-radius:12px;padding:10px 14px;background:var(--c-primary);color:#fff;font-weight:600;cursor:pointer;text-decoration:none;text-align:center}
button.secondary,.btn.secondary{background:#111827;opacity:.85}
a{color:var(--c-link);text-decoration:none}
a:hover{text-decoration:underline}
.msg-error{color:#b91c1c;margin:10px 0}
.msg-ok{color:#16a34a;margin:10px 0}
.small{font-size:13px;color:var(--c-muted)}
.hr{height:1px;background:var(--c-border);margin:16px 0}