:root {
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --primary-color: #00e5ff;
    --primary-glow: rgba(0, 229, 255, 0.5);
    --card-bg: #1a1a1a;
    --card-border: #333;
    --font-primary: 'Orbitron', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Header */
.site-header {
    text-align: center;
    padding: 40px 20px;
    border-bottom: 1px solid var(--card-border);
}

.logo {
    font-family: var(--font-primary);
    color: #ffffff;
    font-size: 2.5rem;
    margin: 0;
    text-shadow: 0 0 10px var(--primary-glow);
    letter-spacing: 2px;
}

.subtitle {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 5px;
}

/* Main Layout */
main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.section-title {
    font-family: var(--font-primary);
    color: var(--primary-color);
    margin-top: 0;
    text-align: center;
}

.instruction {
    text-align: center;
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* Input Area */
textarea {
    width: 100%;
    height: 200px;
    background-color: #0f0f0f;
    border: 1px solid var(--card-border);
    color: #fff;
    padding: 15px;
    border-radius: 5px;
    font-family: monospace;
    resize: vertical;
    box-sizing: border-box;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-glow);
}

/* Buttons */
.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
    flex-wrap: wrap;
}

.action-button {
    background-color: var(--card-bg);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 25px;
    font-family: var(--font-primary);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.action-button:hover {
    background-color: var(--primary-color);
    color: #000;
    box-shadow: 0 0 15px var(--primary-glow);
}

/* Output Area (Velocity Links) */
.hidden { display: none; }

.output-area {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
    animation: fadeIn 0.5s ease;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.output-header h3 {
    font-family: var(--font-primary);
    color: #fff;
    margin: 0;
}

.hint-text {
    font-size: 0.8rem;
    color: #666;
    margin-top: 0;
    margin-bottom: 15px;
}

#links-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 5px;
}

/* Normal Link Style */
.velocity-link {
    display: block;
    background-color: #222;
    color: var(--text-color);
    text-decoration: none;
    padding: 12px;
    border-radius: 4px;
    border-left: 3px solid var(--primary-color);
    transition: all 0.2s;
    cursor: pointer;
}

.velocity-link:hover {
    background-color: #333;
    color: #fff;
    padding-left: 15px;
}

.clear-button {
    background: transparent;
    border: 1px solid #ff3333;
    color: #ff3333;
    padding: 5px 15px;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.8rem;
    border-radius: 4px;
    transition: 0.3s;
}

.clear-button:hover {
    background: #ff3333;
    color: white;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.info-card h3 {
    font-family: var(--font-primary);
    color: #fff;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 10px;
    margin-top: 0;
}

/* FAQ */
details {
    margin-bottom: 15px;
    border-bottom: 1px solid #333;
    padding-bottom: 10px;
}

summary {
    cursor: pointer;
    font-weight: bold;
    color: var(--primary-color);
}

details p {
    margin-top: 10px;
    color: #bbb;
    font-size: 0.95rem;
}

/* Changelog */
.changelog-list {
    list-style: none;
    padding: 0;
}

.changelog-list li {
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #bbb;
}

.changelog-list .date {
    color: var(--primary-color);
    font-weight: bold;
    display: inline-block;
    min-width: 100px;
}

/* Footer */
.site-footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    border-top: 1px solid var(--card-border);
    color: #666;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .info-grid { grid-template-columns: 1fr; }
    .button-group { flex-direction: column; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- FIX: Strikethrough Style [5] --- */
.velocity-link.visited,
.velocity-link.visited:hover {
    text-decoration: line-through !important;
    opacity: 0.5;
    border-left-color: #555;
    background-color: #111;
    color: #777 !important;
}