* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --grass-top: #7cbd6b;
    --grass-side: #5e9a52;
    --border: #4a4a4a;
    --text-light: #ffffff;
}
@media (prefers-color-scheme: light) {
    :root {
        --bg-primary: #c6c6c6;
        --bg-secondary: #8b8b8b;
        --bg-container: rgba(255, 255, 255, 0.95);
        --text-primary: #3f3f3f;
        --text-secondary: #555555;
        --input-bg: #ffffff;
        --input-border: #8b8b8b;
        --button-bg: #5e9a52;
        --button-hover: #4a7d41;
        --shadow: rgba(0, 0, 0, 0.2);
    }
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-container: rgba(45, 45, 45, 0.95);
        --text-primary: #ffffff;
        --text-secondary: #c6c6c6;
        --input-bg: #3f3f3f;
        --input-border: #5e5e5e;
        --button-bg: #5e9a52;
        --button-hover: #4a7d41;
        --shadow: rgba(0, 0, 0, 0.5);
    }
}
body {
    font-family: 'Courier New', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 15px, var(--bg-secondary) 15px, var(--bg-secondary) 16px),
        repeating-linear-gradient(90deg, transparent, transparent 15px, var(--bg-secondary) 15px, var(--bg-secondary) 16px);
    opacity: 0.1;
    pointer-events: none;
    z-index: 0;
}
.container {
    max-width: 500px;
    width: 100%;
    background: var(--bg-container);
    border: 4px solid var(--border);
    border-radius: 0;
    padding: 30px;
    box-shadow: 8px 8px 0 var(--shadow);
    position: relative;
    z-index: 1;
}
.container::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    height: 40px;
    background: linear-gradient(to bottom, 
        var(--grass-top) 0%, 
        var(--grass-top) 40%, 
        var(--grass-side) 40%, 
        var(--grass-side) 100%
    );
    border: 4px solid var(--border);
    border-bottom: none;
}
h1 {
    text-align: center;
    color: var(--text-primary);
    font-size: 28px;
    margin-bottom: 25px;
    margin-top: 20px;
    text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.3);
    letter-spacing: 1px;
}
p, a {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 14px;
}
a {
    color: #5dade2;
    text-decoration: none;
    font-weight: bold;
}
a:hover {
    color: #3498db;
    text-decoration: underline;
}
form {
    margin-top: 20px;
}
label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: bold;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
input[type='text'] {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    background: var(--input-bg);
    border: 3px solid var(--input-border);
    border-radius: 0;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--text-primary);
    transition: border-color 0.2s;
}
input[type='text']:focus {
    outline: none;
    border-color: var(--button-bg);
}
input[type='text']::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}
.checkbox-container {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    cursor: pointer;
}
input[type='checkbox'] {
    width: 20px;
    height: 20px;
    margin-right: 10px;
    cursor: pointer;
    accent-color: var(--button-bg);
}
.checkbox-container label {
    margin: 0;
    cursor: pointer;
}
input[type='submit'] {
    width: 100%;
    padding: 15px;
    background: var(--button-bg);
    color: var(--text-light);
    border: 3px solid var(--border);
    border-radius: 0;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 4px 4px 0 var(--shadow);
    letter-spacing: 1px;
}
input[type='submit']:hover {
    background: var(--button-hover);
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--shadow);
}
input[type='submit']:active {
    transform: translate(4px, 4px);
    box-shadow: none;
}
ul {
    color: var(--text-secondary);
    margin-left: 20px;
    margin-bottom: 20px;
}
li {
    margin-bottom: 8px;
}
@media (max-width: 600px) {
    .container {
        padding: 20px;
    }
    h1 {
        font-size: 22px;
    }
    input[type='submit'] {
        font-size: 14px;
        padding: 12px;
    }
}