/* Windows 3.1 / Early Mac OS Retro Theme */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'IBM Plex Mono', 'Courier New', monospace;
    background: #008080; /* Teal desktop background */
    background-image: repeating-linear-gradient(
        45deg,
        #008080 0px,
        #008080 10px,
        #007070 10px,
        #007070 20px
    );
    min-height: 100vh;
    padding: 20px;
}

.terminal {
    max-width: 1200px;
    margin: 0 auto;
    background: #c0c0c0; /* Classic gray */
    border: 3px solid;
    border-color: #ffffff #000000 #000000 #ffffff; /* 3D effect */
    box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.5);
}

.terminal-header {
    background: linear-gradient(180deg, #000080 0%, #0000aa 100%); /* Windows blue */
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #000000;
}

.terminal-title {
    color: #ffffff;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.terminal-buttons {
    display: flex;
    gap: 8px;
}

.terminal-buttons span {
    background: #c0c0c0;
    color: #000000;
    cursor: pointer;
    font-size: 14px;
    padding: 2px 8px;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    font-weight: bold;
    min-width: 20px;
    text-align: center;
}

.terminal-buttons span:active {
    border-color: #000000 #ffffff #ffffff #000000;
}

.terminal-body {
    padding: 20px;
    background: #c0c0c0;
}

.ascii-art {
    color: #000000;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    line-height: 1.3;
    text-align: center;
    margin-bottom: 20px;
    background: #ffffff;
    padding: 15px;
    border: 2px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    white-space: pre;
}

.content {
    color: #000000;
}

.section {
    margin-bottom: 30px;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    padding: 15px;
    background: #dfdfdf;
}

.section h2 {
    color: #000080;
    font-size: 1.3em;
    margin-bottom: 15px;
    font-weight: bold;
    letter-spacing: 1px;
    border-bottom: 2px solid #000080;
    padding-bottom: 5px;
}

.challenge-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.challenge-link {
    display: block;
    color: #000000;
    text-decoration: none;
    padding: 12px;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    background: #c0c0c0;
    transition: all 0.1s;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
}

.challenge-link:hover {
    background: #ffffff;
}

.challenge-link:active {
    border-color: #000000 #ffffff #ffffff #000000;
    background: #808080;
}

.prompt {
    color: #000080;
    margin-right: 10px;
    font-weight: bold;
}

.difficulty {
    float: right;
    font-weight: bold;
    padding: 2px 8px;
    border: 2px solid;
    background: #c0c0c0;
}

.difficulty.easy {
    color: #008000;
    border-color: #008000;
}

.difficulty.moderate {
    color: #ff8000;
    border-color: #ff8000;
}

.difficulty.hard {
    color: #800000;
    border-color: #800000;
}

.description {
    margin-top: 8px;
    color: #000080;
    font-size: 12px;
    padding-left: 20px;
}

form {
    background: #dfdfdf;
    padding: 20px;
    border: 3px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    margin: 20px 0;
}

label {
    display: block;
    margin-bottom: 6px;
    color: #000000;
    font-weight: bold;
    font-size: 13px;
}

input[type="text"],
input[type="password"],
input[type="number"],
textarea {
    width: 100%;
    padding: 8px;
    background: #ffffff;
    border: 2px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    color: #000000;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    margin-bottom: 12px;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus {
    outline: 2px dotted #000000;
    outline-offset: -2px;
}

textarea {
    min-height: 80px;
    resize: vertical;
}

input[type="submit"],
button {
    background: #c0c0c0;
    color: #000000;
    padding: 8px 24px;
    border: 3px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.1s;
}

input[type="submit"]:hover,
button:hover {
    background: #dfdfdf;
}

input[type="submit"]:active,
button:active {
    border-color: #000000 #ffffff #ffffff #000000;
    padding: 9px 23px 7px 25px;
}

.alert {
    padding: 12px;
    margin: 15px 0;
    border: 3px solid;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
}

.alert.success {
    background: #00ff00;
    color: #000000;
    border-color: #ffffff #008000 #008000 #ffffff;
}

.alert.error {
    background: #ff0000;
    color: #ffffff;
    border-color: #ffffff #800000 #800000 #ffffff;
}

.alert.info {
    background: #ffff00;
    color: #000000;
    border-color: #ffffff #808000 #808000 #ffffff;
}

.alert code {
    background: #ffffff;
    padding: 2px 6px;
    border: 1px solid #000000;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: #000080;
}

pre {
    background: #000000;
    color: #ffffff;
    padding: 12px;
    border: 2px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    overflow-x: auto;
    margin: 15px 0;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
}

a {
    color: #0000ff;
    text-decoration: underline;
    font-weight: bold;
}

a:hover {
    color: #ff00ff;
}

a:visited {
    color: #800080;
}

.back-link {
    display: inline-block;
    margin-bottom: 15px;
    padding: 8px 16px;
    background: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    transition: all 0.1s;
    color: #000000;
    text-decoration: none;
}

.back-link:hover {
    background: #dfdfdf;
}

.back-link:active {
    border-color: #000000 #ffffff #ffffff #000000;
}

hr {
    border: none;
    border-top: 2px solid #808080;
    margin: 15px 0;
}

.profile-box {
    background: #ffffff;
    padding: 15px;
    border: 3px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    margin: 15px 0;
}

.comment-section {
    margin-top: 25px;
    padding-top: 15px;
    border-top: 3px solid #808080;
}

.comment-item {
    background: #ffffff;
    padding: 12px;
    border: 2px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    margin-bottom: 10px;
}

.comment-author {
    font-weight: bold;
    color: #000080;
    margin-bottom: 5px;
}

h2, h3 {
    color: #000080;
    margin: 12px 0;
    font-weight: bold;
}

ul {
    list-style: none;
    padding-left: 0;
}

ul li {
    margin: 8px 0;
    padding-left: 20px;
    color: #000000;
}

ul li::before {
    content: "▪";
    color: #000080;
    margin-right: 8px;
    margin-left: -20px;
}

/* Login page specific */
.login-container {
    max-width: 500px;
    margin: 40px auto;
    text-align: center;
    background: #c0c0c0;
    padding: 30px;
    border: 3px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
}

/* Scrollbar styling for Windows 3.1 look */
::-webkit-scrollbar {
    width: 16px;
    height: 16px;
}

::-webkit-scrollbar-track {
    background: #dfdfdf;
}

::-webkit-scrollbar-thumb {
    background: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
}

::-webkit-scrollbar-thumb:hover {
    background: #808080;
}

::-webkit-scrollbar-button {
    background: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    height: 16px;
    width: 16px;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .terminal-body {
        padding: 10px;
    }
    
    .ascii-art {
        font-size: 10px;
    }
    
    .section {
        padding: 10px;
    }
}