:root {
    --bg-color: #1a1a1a;
    --text-color: #fff;
    --h1-shadow-color: rgba(255,255,255,0.5);
    --bg-pattern-color: rgba(255,255,255,0.1);
    --form-bg: #2d2d2d;
    --input-bg: #3d3d3d;
    --input-text: #fff;
    --border-color: #444;
}

body.light-mode {
    --bg-color: #f0f2f5;
    --text-color: #333;
    --h1-shadow-color: rgba(0,0,0,0.2);
    --bg-pattern-color: rgba(0,0,0,0.05);
    --form-bg: #ffffff;
    --input-bg: #f9f9f9;
    --input-text: #333;
    --border-color: #ddd;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    margin: 0;
    padding: 40px 20px;
    background-color: var(--bg-color);
    background-image: repeating-radial-gradient(circle at center, var(--bg-pattern-color) 0, var(--bg-pattern-color) 1px, transparent 1px, transparent 100%);
    background-size: 0.5em 0.5em;
    color: var(--text-color);
    transition: background-color 0.3s ease;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 80px;
}

h1 {
    color: var(--text-color);
    text-shadow: 0 0 10px var(--h1-shadow-color), 0 0 20px var(--h1-shadow-color);
    margin-bottom: 40px;
}

#partnership {
    width: 100%;
    max-width: 600px;
}

.form-container {
    background-color: var(--form-bg);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
}

.form-container h2 {
    margin-top: 0;
    text-align: center;
}

.form-container p {
    text-align: center;
    opacity: 0.8;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.input-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.input-group label {
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
}

.input-group input, .input-group textarea {
    padding: 12px 15px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--input-text);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.input-group input:focus, .input-group textarea:focus {
    border-color: #ff9a9e;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(145deg, #ff9a9e, #fad0c4);
    color: white;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(255, 154, 158, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 154, 158, 0.4);
}

@media (max-width: 600px) {
    .form-container {
        padding: 20px;
    }
}