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

body {
    height: 100vh;
    background: radial-gradient(circle at center, #0a1a2f, #000);
    font-family: 'Segoe UI', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 앱 프레임 */
.login_container {
    width: 100%;
    max-width: 420px;
    height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 카드 */
.wrap_login {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 30px 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 🔥 네오 로고 */
.logo {
    width: 110px;
    height: 110px;
    margin: 0 auto 20px;
    position: relative;
}

.circle {
    width: 100%;
    height: 100%;
    border: 3px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    box-shadow: 0 0 20px #5bc0ff, 0 0 60px rgba(91, 192, 255, 0.4);
}

.slash {
    position: absolute;
    width: 180%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #5bc0ff, transparent);
    top: 50%;
    left: -40%;
    transform: rotate(45deg);
    box-shadow: 0 0 20px #5bc0ff;
}

/* 타이틀 */
.login_title {
    color: white;
    font-size: 22px;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

/* 폼 */
.login_form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.login_form label {
    text-align: left;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
}

.login_form input {
    width: 100%;
    margin-top: 5px;
    padding: 14px;
    border-radius: 12px;
    border: none;
    outline: none;
    background: rgba(255, 255, 255, 0.07);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 버튼 */
.btn_login {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(90deg, #00c6ff, #0072ff);
    color: white;
    font-size: 15px;
    margin-top: 10px;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(0, 200, 255, 0.5);
}

/* 하단 링크 */
.account {
    margin-top: 15px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.account a {
    color: #5bc0ff;
    text-decoration: none;
}

.account span {
    margin: 0 8px;
}