/* ログイン画面 */
*{box-sizing:border-box;margin:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;background:#f8fafc;color:#0f172a;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px;line-height:1.6}
.login-box{background:#fff;border:1px solid #e2e8f0;border-radius:10px;padding:28px 24px;width:100%;max-width:380px}
h1{font-size:1.25rem;color:#2563eb;margin-bottom:6px}
.login-lead{color:#475569;font-size:.9rem;margin-bottom:18px}
.login-msg{background:#ecfdf5;color:#047857;border-radius:6px;padding:10px 12px;font-size:.88rem;margin-bottom:16px}
.login-msg.error{background:#fef2f2;color:#b91c1c}
label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px}
input[type=password]{width:100%;padding:11px;border:1px solid #cbd5e1;border-radius:6px;font:inherit;font-size:16px;margin-bottom:18px}
input[type=password]:focus{outline:2px solid #93c5fd;border-color:#2563eb}
button{width:100%;padding:12px;border:0;border-radius:6px;background:#2563eb;color:#fff;font-size:1rem;font-weight:700;cursor:pointer;font-family:inherit}
button:hover{background:#1d4ed8}
.visually-hidden{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}