@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
}

body {
    background: #f6f5f7;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: -20px 0 50px;
    transition: background 0.5s;
}

body.dark-mode {
    background: #1e1e1e;
}

#toggle-dark-mode {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    background: #ff4b2b;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.container {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 
                0 10px 10px rgba(0, 0, 0, 0.22);
    position: relative;
    overflow: hidden;
    width: 768px;
    max-width: 100%;
    min-height: 480px;
    transition: background 0.5s, color 0.5s;
}

body.dark-mode .container {
    background: #2c2c2c;
    color: #ffffff;
}

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

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

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

.container.right-panel-active .sign-in-container {
    transform: translateX(100%);
}

.container.right-panel-active .sign-up-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;
}

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

.overlay {
    background: #ff416c;
    background: -webkit-linear-gradient(to right, #ff4b2b, #ff416c);
    background: linear-gradient(to right, #ff4b2b, #ff416c);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 0 0;
    color: #ffffff;
    position: relative;
    left: -100%;
    height: 100%;
    width: 200%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
}

.container.right-panel-active .overlay {
    transform: translateX(50%);
}

.overlay-panel {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    top: 0;
    height: 100%;
    width: 50%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
}

.overlay-left {
    transform: translateX(-20%);
}

.container.right-panel-active .overlay-left {
    transform: translateX(0);
}

.overlay-right {
    right: 0;
    transform: translateX(0);
}

.container.right-panel-active .overlay-right {
    transform: translateX(20%);
}

form {
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    padding: 0 50px;
    height: 100%;
    justify-content: center;
    align-items: center;
    text-align: center;
    transition: background 0.5s, color 0.5s;
}

body.dark-mode form {
    background-color: #2c2c2c;
    color: #ffffff;
}

h1 {
    font-weight: bold;
    margin: 0;
}

p {
    font-size: 14px;
    font-weight: 100;
    line-height: 20px;
    letter-spacing: 0.5px;
    margin: 20px 0 30px;
}

span.material-icons {
    font-size: 1.5em;
    color: #333;
}

body.dark-mode span.material-icons {
    color: #ffffff;
}

.field {
    background-color: #eee;
    border-radius: 10px;
    border: none;
    padding: 12px 15px;
    margin: 8px 0;
    width: 100%;
    display: flex;
    align-items: center;
    transition: background 0.5s, color 0.5s;
}

body.dark-mode .field {
    background-color: #444;
    color: #ffffff;
}

.input-field {
    background: none;
    border: none;
    outline: none;
    width: 100%;
    color: #333;
    margin-left: 10px;
    transition: color 0.5s;
}

body.dark-mode .input-field {
    color: #ffffff;
}

button {
    border-radius: 20px;
    border: 1px solid #ff4b2b;
    background-color: #ff4b2b;
    color: #ffffff;
    font-size: 12px;
    font-weight: bold;
    padding: 12px 45px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: transform 80ms ease-in;
    cursor: pointer;
}

button.ghost {
    background-color: transparent;
    border-color: #ffffff;
}

button:hover {
    background-color: #ff416c;
    border-color: #ff416c;
}

button:active {
    transform: scale(0.95);
}

.forgot-password {
    margin-top: 10px;
    font-size: 0.9em;
    color: #ff4b2b;
    text-decoration: none;
}

.forgot-password:hover {
    text-decoration: underline;
}

body.dark-mode .forgot-password {
    color: #ffffff;
}