body {
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    
}

:root{
    --bg-color:#1f242d;
    --second-bg-color:#323946;
    --main-color:#4e94f3;
    --white-color:#ffffff;
    --disabled-color:#fff3;
    --red-color:#e74c3c;
    --green-color:#27ae60;
}

.container {
    width: 400px;
    margin: auto;
    padding: 20px;
    border: 1px solid var(--disabled-color);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    background: var(--second-bg-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: var(--white-color);
    font-family: Arial, sans-serif;
    transition: all .3s ease-in-out;
}


.active {
display: none;
}

.a {
    color: var(--bg-color);
    text-decoration: none;

}

.container-box{
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    font-size: .875rem;
}

.container-box input {
    width: 90%;
    height: 2rem;
    margin-top: 10px;
    background: var(--bg-color);
    border:var(--disabled-color) 1px solid;
    padding: 10 10px;
    border-radius: 5px;
}

.container-box button {
  width: 100%;
  height: 3rem;
  color: var(--main-color);
  background: transparent;
  border: 2px solid var(--main-color);
  border-radius: 5px;
  font-weight: bold;
  font-size: .995rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color 0.4s ease;
  z-index: 0;
  margin-top: 1.5rem;
}

.container-box p {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--disabled-color);
    cursor: default;
}

.container-box button::before {
  content: '';
  position: absolute;
  top: 100%;
  left: 100%;
  width: 200%;
  height: 0;
  border-radius: 0 0 50% 50%;
  background: var(--main-color);
  z-index: -1;
  transition: all 0.6s ease;
}


.container-box button:hover {
  color: var(--bg-color);
}

.container-box button:hover::before {
    top: -30px;
    left: -30px;
}

button:active::before {
background: var(--main-color);
transition: background 0s 0.6s;
}

.container:hover {
    box-shadow: var(--main-color) 0 0 10px, var(--main-color) 0 0 20px, var(--main-color) 0 0 30px;
    border: var(--main-color) 2px solid;
}

.container:hover h1, .container:hover h2 {
    color: var(--main-color);
}

.container:hover .container-box  {
    color: var(--main-color);
}

.container:hover .a {
    color: var(--main-color);
    text-decoration: none;
    cursor: pointer;
}

.container:hover .p {
    color: var(--white-color);
}

.container:hover .p1 {
    color: var(--main-color);
    cursor: pointer;
}

.container3:hover {
    border: var(--main-color) 2px solid;
}

.container3 h3 {
    font-size: 1.2rem; 
    font-weight: normal; 
}

.container:hover button {

    box-shadow: var(--main-color) 0 0 5px;
}

.container-box input:disabled {
    background: var(--disabled-color);
    cursor: not-allowed;
}

button:hover {
    background: var(--main-color);
    color: var(--bg-color);
    transition: all .3s ease-in-out;
}

.input-container {
    position: relative;
    width: 100%;
}

.input-container .icon {
    position: absolute;
    top: 60%;
    left: 10px;
    transform: translateY(-50%);
    color: var(--white-color);
    pointer-events: none;
}

.name-row {
    display: flex;
    gap: 20px; 
}

.name-row .input-container {
    flex-grow: 1;
}

.name-row input {
    width: 80%;
}

.input-container input {
    padding-left: 35px;
}

.input-container input:focus {
    border: var(--main-color) 2px solid;
    box-shadow: 0 0 10px var(--main-color), 0 0 20px var(--main-color);
    transform: scale(1.02); 
    color: var(--main-color);
}

.input-container input:focus + .icon {
    color: var(--main-color);
}

.true {
    border: 2px solid var(--green-color);
    box-shadow: 0 0 10px var(--green-color), 0 0 20px var(--green-color);
}

.false {
    border: 2px solid var(--red-color);
    box-shadow: 0 0 10px var(--red-color), 0 0 20px var(--red-color);
}

.trueicon {
    position: absolute;
    top: 60%;
    right: 10px;
    transform: translateY(-50%);
    color: var(--green-color);
    pointer-events: none;
    opacity: 0;
}

.falseicon {
    position: absolute;
    top: 60%;
    right: 10px;
    transform: translateY(-50%);
    color: var(--red-color);
    pointer-events: none;
    opacity: 0;
}

.message {
  margin-top: 10px;
  font-weight: bold;
  font-size: 0.95rem;
  transition: 0.3s;
  opacity: 0;
}

.message.show {
  opacity: 1;
}

.message.error {
  color: var(--red-color);
  animation: shake 0.5s;
}

.message.success {
  color: var(--green-color);
}

@keyframes shake {
  0% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
  100% { transform: translateX(0); }
}



.name-row2 {
    display: flex;
    justify-content: space-between; 
    align-items: center;
    width: 100%;
    gap: 10rem;
}

.name-row2 p {
    width: auto;
    text-align: center;
    margin-top: 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    color: var(--white-color);
    white-space: nowrap;
}


.message2 {
  margin-top: 10px;
  font-weight: bold;
  font-size: 0.95rem;
  transition: 0.3s;
  opacity: 0;
}

.message2.show {
  opacity: 1;
}

.message2.error {
  color: var(--red-color);
  animation: shake2 0.5s;
}

.message2.success {
  color: var(--green-color);
}

@keyframes shake2 {
  0% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
  100% { transform: translateX(0); }
}

@media screen and (max-width: 768px) {

    .container, .sign-up, .container3 {
        width: 85%;
        margin: 30px auto;
    }

    .name-row {
        flex-direction: column;
        gap: 0; 
        width: 90%;
        gap: 0;
        width: 100%;
    }

    .name-row input {
        width: 100%;
        width: 90%;
    }

    .name-row2 {
        justify-content: space-between; 
        align-items: center; 
    }

    .name-row2 p {
        width: auto; 
        margin-top: 20px; 
    }

    .name-row2 input {
        flex-grow: 0; 
        width: 50%; 
    }
}


@media screen and (max-width: 637px) {
    .container, .sign-up, .container3 {
        width: 85%;
    }
}

@media screen and (max-width: 480px) {
    .container, .sign-up, .container3 {
        width: 95%;
        padding: 15px;
    }
}