* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #1a237e;
    min-height: 100vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
    padding: 16px;
}

.login-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px 36px 32px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header .logo-circle {
    width: 64px;
    height: 64px;
    background-color: #1a237e;
    border-radius: 50%;
    display: inline-block;
    line-height: 64px;
    text-align: center;
    margin-bottom: 16px;
}

.login-header .logo-circle span {
    font-size: 28px;
    color: #ffffff;
}

.login-header h2 {
    font-size: 22px;
    font-weight: 700;
    color: #1a237e;
    margin-bottom: 4px;
}

.login-header p {
    font-size: 13px;
    color: #78909c;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #37474f;
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #cfd8dc;
    border-radius: 8px;
    font-size: 14px;
    color: #263238;
    background: #f9fafb;
    outline: none;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: #1565c0;
    background: #ffffff;
}

.error-msg {
    display: block;
    color: #e53935;
    font-size: 12px;
    margin-top: 4px;
}

.alert-box {
    background: #ffebee;
    border: 1px solid #ef9a9a;
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 20px;
    font-size: 13px;
    color: #c62828;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background-color: #1a237e;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
}

.btn-login:hover {
    background-color: #283593;
}

.footer-text {
    text-align: center;
    color: #ffffff;
    font-size: 12px;
    margin-top: 24px;
    opacity: 0.7;
}