:root {
    --bg-color: #000000;
    --text-main: #c9d1d9;
    --terminal-green: #20C20E;
    --alert-color: #ffff00;
    --title-orange: #ff9800;
    --border-color: #333;
    --details-bg: rgba(32, 194, 14, 0.02);
    --hover-bg: #1a1a1a;
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --text-main: #24292f;
    --terminal-green: #0288d1;
    --alert-color: #d32f2f;
    --title-orange: #ff9800;
    --border-color: #cccccc;
    --details-bg: #f9f9f9;
    --hover-bg: #f0f0f0;
}

.btn-console {
    background: transparent;
    border: 1px solid var(--terminal-green);
    color: var(--terminal-green);
    cursor: pointer;
    padding: 5px 12px;
    font-family: inherit;
    font-size: 1.1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-console:hover {
    background-color: var(--terminal-green);
    color: var(--bg-color);
    box-shadow: 0 0 8px var(--terminal-green);
}

body {
    font-family: 'Liberation Mono', 'Consolas', monospace;
    background-color: var(--bg-color);
    color: var(--text-main);
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    line-height: 1.2;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body p { font-size: 0.9rem; }

h1 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--terminal-green);
    padding-bottom: 10px;
    letter-spacing: 3px;
}
.prompt::after {
    content: '█';
    animation: blink 1s step-end infinite;
    margin-left: 5px;
}
@keyframes blink {
    0%,
    100% { opacity: 1; }
    50% { opacity: 0; }
}

h2 {
    font-size: 0.8rem;
    margin-top: 5px;
    margin-bottom: 10px;
    color: var(--text-main);
    background-color: var(--bg-color);
    padding: 5px;
    display: inline-block;
}

.warning {
    border: 1px dashed var(--alert-color);
    color: var(--alert-color);
    padding: 15px;
    margin-bottom: 30px;
    text-align: center;
    background-color: rgba(255, 255, 0, 0.05);
    font-size: 0.85rem;
}

details {
    margin-bottom: 20px;
    border: 1px solid #333;
    padding: 10px;
}

details[open] {
    border-color: var(--terminal-green);
    background-color: var(--details-bg);
}

summary {
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    list-style: none;
    outline: none;
}
details > summary {
    list-style: none;
    cursor: pointer;
    outline: none;
    transition: color 0.2s ease;
}

details > summary::-webkit-details-marker {
    display: none;
}

details > summary::before {
    content: "[+] ";
    color: var(--terminal-green);
    font-weight: bold;
    margin-right: 8px;
    display: inline-block;
    min-width: 30px;
}

details[open] > summary::before {
    content: "[-] ";
    color: var(--title-orange);
}

ul {
    border-left: 1px solid var(--border-color);
    list-style-type: none;
    padding-left: 20px;
    border-left: 1px solid #333;
    margin-top: 10px;
}

li {
    margin-bottom: 8px;
    padding: 5px;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

li:hover {
    background-color: var(--hover-bg);
    border-left: 3px solid var(--terminal-green);
    padding-left: 8px;
}

a {
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--text-main);
    display: flex;
    align-items: center;
    width: auto;
    flex-grow: 1;
    margin-right: 20px;

}

.tag {
    font-size: 0.9rem;
    padding: 2px 6px;
    margin-right: 10px;
    border-radius: 2px;
    font-weight: bold;
    display: inline-block;
    min-width: 60px;
    text-align: center;
    color: #000;
}
.tag-ref { background-color: #20C20E; }
.tag-edu { background-color: #00bcd4; }
.tag-lab { background-color: #ff9800; }
.tag-ext { background-color: #9c27b0; }

.meta {
    font-size: 0.75rem;
    color: #666;
    display: inline-block;
    white-space: nowrap;
}

.footer {
    margin-top: 40px;
    border-top: 1px solid #333;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer a {
    color: #666;
    flex-grow: 0;
    margin-right: 0;
    width: auto;
}
.footer a:hover { color: var(--terminal-green); }

.footer span {
    text-align: right;
    color: #666;
    font-size: 0.85rem;
}