:root {
    --background: #ffffff;
    --text-color: #212121;
    --accent-color: #3DDC84;
    --input-bg: #f5f5f5;
    --input-border: #ccc;
    --button-bg: var(--accent-color);
    --button-text: #ffffff;
    --button-hover-bg: rgba(61, 220, 132, 0.8);
}

[data-theme="dark"] {
    --background: #121212;
    --text-color: #e0e0e0;
    --accent-color: #3DDC84;
    --input-bg: #1e1e1e;
    --input-border: #444;
    --button-bg: var(--accent-color);
    --button-text: #ffffff;
    --button-hover-bg: rgba(61, 220, 132, 0.9);
}

body {
    font-family: 'Product Sans', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--background);
    color: var(--text-color);
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
}

h1 {
    font-size: 2rem;
    margin: 0 0 15px;
    color: var(--accent-color);
}

p {
    font-size: 1.2rem;
    margin: 10px 0;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

form label {
    font-size: 1rem;
    font-weight: bold;
    color: var(--text-color);
}

form input[type="email"] {
    padding: 10px;
    font-size: 1rem;
    width: 100%;
    max-width: 300px;
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 5px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

form input[type="email"]:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 5px var(--accent-color);
}

form button {
    padding: 10px 20px;
    font-size: 1rem;
    color: var(--button-text);
    background-color: var(--button-bg);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

form button:hover {
    background-color: var(--button-hover-bg);
}

.g-recaptcha {
    margin: 10px 0;
}

footer {
    font-size: 0.8rem;
    color: var(--text-color);
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: var(--background);
    padding: 10px 0;
    display: flex;
    justify-content: center;
    gap: 15px;
}

footer a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.2rem;
}

.theme-selector {
    position: fixed;
    top: 10px;
    right: 20px;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropdown {
    list-style: none;
    margin: 0;
    padding: 10px;
    display: none;
    position: absolute;
    top: 40px;
    right: 0;
    background-color: var(--background);
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    z-index: 25;
    text-align: left;
}

.dropdown.visible {
    display: block;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropdown li {
    padding: 5px 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.dropdown li:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.dropdown li span {
    font-size: 1.5rem;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 10px 20px;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--background);
    z-index: 10;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.doandroid {
    font-family: 'Product Sans', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-color);
}

.dev {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    margin-left: 5px;
    color: var(--accent-color);
    font-weight: 700;
    font-style: normal;
}