body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
    background: radial-gradient(circle at 20% 30%, #00a5ff 0%, #005ce6 50%, #003399 100%);
    background-size: cover;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    color: #333;
}
.logo-container { margin-bottom: 25px; cursor: pointer; }
.logo-container svg { width: 140px; fill: #fff; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1)); }
.login-box {
    background: rgba(255, 255, 255, 0.95);
    width: 320px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    padding: 30px;
    box-sizing: border-box;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.view { display: none; animation: fadeIn 0.3s ease-in-out; }
.view.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
.login-box h2 { margin: 0 0 20px 0; font-size: 18px; font-weight: 600; color: #333; }
.login-box p.desc { font-size: 14px; color: #666; margin-bottom: 20px; }
.input-group { border: 1px solid #c8c8c8; border-radius: 6px; padding: 6px 12px; margin-bottom: 12px; text-align: left; background: #fff; transition: border-color 0.2s, box-shadow 0.2s; }
.input-group:focus-within { border-color: #0082c9; box-shadow: 0 0 0 2px rgba(0, 130, 201, 0.2); }
.input-group label { display: block; font-size: 11px; color: #666; margin-bottom: 2px; }
.input-group input { border: none; width: 100%; outline: none; font-size: 15px; font-family: inherit; color: #333; background: transparent; padding: 0; }
.login-btn { background-color: #0082c9; color: #fff; border: none; width: 100%; padding: 12px; font-size: 16px; font-weight: 600; border-radius: 6px; cursor: pointer; display: flex; justify-content: center; align-items: center; transition: background-color 0.2s; margin-top: 5px; }
.login-btn:hover { background-color: #006096; }
.login-btn span { margin-right: 8px; font-size: 18px; line-height: 1; }
.extra-links { margin-top: 20px; display: flex; flex-direction: column; gap: 15px; }
.extra-links a { color: #333; text-decoration: none; font-size: 14px; font-weight: 600; transition: opacity 0.2s; cursor: pointer; }
.extra-links a:hover { opacity: 0.7; }
.warning-msg { background-color: #ffe6e6; color: #cc0000; border-radius: 6px; padding: 10px; margin-bottom: 15px; font-size: 14px; text-align: center; display: none; }
.error-icon { font-size: 40px; color: #cc0000; margin-bottom: 15px; }
.back-link { margin-top: 20px; display: inline-block; font-size: 14px; color: #0082c9; text-decoration: none; cursor: pointer; font-weight: 600; }
footer { position: absolute; bottom: 20px; color: rgba(255, 255, 255, 0.7); font-size: 12px; background: rgba(0, 0, 0, 0.2); padding: 5px 15px; border-radius: 20px; }