* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f2f5;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    margin: 20px;
}
.login-card h1 {
    font-size: 1.5em;
    color: #333;
    text-align: center;
    margin-bottom: 8px;
}
.login-card .subtitle {
    text-align: center;
    color: #888;
    font-size: 0.9em;
    margin-bottom: 30px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 0.85em;
    font-weight: 600;
    color: #555;
    margin-bottom: 6px;
}
.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d0d0d0;
    border-radius: 4px;
    font-size: 1em;
    font-family: inherit;
    transition: border-color 0.2s;
}
.form-group input:focus {
    outline: none;
    border-color: #2E86C1;
    box-shadow: 0 0 0 3px rgba(46,134,193,0.15);
}
.error {
    background: #fdf0f0;
    color: #c0392b;
    border: 1px solid #e6b0aa;
    border-radius: 4px;
    padding: 10px 12px;
    font-size: 0.9em;
    margin-bottom: 20px;
}
button[type="submit"] {
    width: 100%;
    padding: 12px;
    background: #2E86C1;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
button[type="submit"]:hover {
    background: #2471a3;
}
button[type="submit"]:active {
    background: #1f618d;
}
button[type="submit"]:disabled {
    background: #85c1e9;
    cursor: not-allowed;
}
.brand-bar {
    width: 100%;
    height: 4px;
    background: #2E86C1;
    border-radius: 8px 8px 0 0;
    position: absolute;
    top: 0;
    left: 0;
}
.login-card {
    position: relative;
    overflow: hidden;
}