:root {
    --grad-left: #131314;
    --grad-right: #a19ca6;
}

body {
    margin: 0;
    width: 100%;
    font-family: 'Poppins', sans-serif;
    background: #f0f2f5;
    overflow-x: hidden;
    padding-top: 90px;
}

.page-wrapper {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(-45deg, #484a4c, #f0f2f2, #131314, #a19ca6);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    padding: 40px 0;
    align-self: center;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.maindiv {
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    width: 768px;
    max-width: 95%;
    min-height: 520px;
}

.form-container {
    position: absolute;
    top: 0;
    height: 100%;
    transition: all 0.6s ease-in-out;
}

.login-container {
    left: 0;
    width: 50%;
    z-index: 2;
}

.signup-container {
    left: 0;
    width: 50%;
    opacity: 0;
    z-index: 1;
}

.maindiv.active .login-container {
    transform: translateX(100%);
    opacity: 0;
}

.maindiv.active .signup-container {
    transform: translateX(100%);
    opacity: 1;
    z-index: 5;
}

.overlay-container {
    position: absolute;
    top: 0;
    left: 50%;
    width: 50%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.6s ease-in-out;
    z-index: 100;
}

.maindiv.active .overlay-container {
    transform: translateX(-100%);
}

.overlay {
    background: linear-gradient(to right, var(--grad-left), var(--grad-right));
    color: #FFFFFF;
    position: relative;
    left: -100%;
    height: 100%;
    width: 200%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
}

.maindiv.active .overlay {
    transform: translateX(50%);
}

.overlay-panel {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 40px;
    text-align: center;
    top: 0;
    height: 100%;
    width: 50%;
    box-sizing: border-box;
}

.overlay-left { transform: translateX(-20%); }
.maindiv.active .overlay-left { transform: translateX(0); }
.overlay-right { right: 0; }

form {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 30px;
    height: 100%;
    text-align: center;
}

input {
    background-color: #eee;
    border: none;
    padding: 12px 15px;
    margin: 8px 0;
    width: 100%;
    border-radius: 8px;
    outline: none;
    box-sizing: border-box;
}

.password-wrapper {
    position: relative;
    width: 100%;
}

.toggle-eye {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #555;
    z-index: 10;
}

.main-btn {
    border-radius: 20px;
    border: 1px solid var(--grad-left);
    background: var(--grad-left);
    color: #FFFFFF;
    font-size: 12px;
    font-weight: bold;
    padding: 12px 45px;
    cursor: pointer;
    margin-top: 15px;
    text-transform: uppercase;
}

.ghost {
    background: transparent;
    border: 1px solid #FFFFFF;
    border-radius: 20px;
    color: #FFFFFF;
    font-size: 12px;
    font-weight: bold;
    padding: 10px 40px;
    cursor: pointer;
    margin-top: 10px;
}

h1 { font-size: 24px; margin: 0 0 10px; }
p { font-size: 14px; margin: 15px 0; }