:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --accent-color: #00bcd4;
    /* Cyan */
    --accent-hover: #00acc1;
    --border-color: #333;
    --card-bg: #1e1e1e;
    --header-bg: #1a1a1a;

    /* MUD Colors */
    --color-cyan: #00bcd4;
    --color-bright-cyan: #4dd0e1;
    --color-green: #4caf50;
    --color-bright-green: #81c784;
    --color-red: #f44336;
    --color-bright-red: #e57373;
    --color-white: #b0bec5;
    --color-bright-white: #ffffff;
    --color-yellow: #fbc02d;
    --color-bright-yellow: #fff176;
    --color-blue: #2196f3;
    --color-bright-blue: #64b5f6;
    --color-magenta: #9c27b0;
    --color-bright-magenta: #ba68c8;
    --color-orange: #ff8a65;
    /* Salmon/Soft Orange */
    --color-bright-orange: #ff6d00;
    /* Strong Orange */
    --color-dark-grey: #616161;
}

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

body {
    font-family: 'Roboto', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
header {
    background-color: var(--header-bg);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(0, 188, 212, 0.5);
    text-decoration: none;
    margin-right: 2rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-btn:hover {
    background: rgba(0, 188, 212, 0.1);
    box-shadow: 0 0 10px rgba(0, 188, 212, 0.2);
}

/* Dashboard / Index View */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding-bottom: 2rem;
}

.dashboard-category {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.dashboard-category h3 {
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dashboard-list {
    list-style: none;
    max-height: 300px;
    overflow-y: auto;
}

.dashboard-item {
    padding: 0.3rem 0;
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dashboard-item a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s;
    display: block;
    width: 100%;
}

.dashboard-item a:hover {
    color: var(--accent-color);
}

.index-badge {
    display: inline-block;
    width: 60px;
    font-size: 0.8rem;
    color: var(--color-dark-grey);
    margin-right: 0.5rem;
}

/* Main Layout */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background-color: var(--card-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.search-container {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

#searchInput {
    width: 100%;
    padding: 0.8rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
}

#searchInput:focus {
    outline: none;
    border-color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 5px rgba(0, 188, 212, 0.3);
}

.dashboard-category:focus {
    outline: 2px solid var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 188, 212, 0.3);
    border-color: var(--accent-color);
}

.category-list {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.category-item {
    cursor: pointer;
    padding: 0.5rem 1rem;
    margin-bottom: 0.2rem;
    border-radius: 4px;
    transition: background-color 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.category-item.active {
    background-color: rgba(0, 188, 212, 0.1);
    color: var(--accent-color);
    border-left: 3px solid var(--accent-color);
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background-color: var(--bg-color);
}

.welcome-message {
    text-align: center;
    margin-top: 2rem;
    color: var(--color-dark-grey);
}

.help-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.3s ease-in-out;
}

.help-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.back-btn {
    background: transparent;
    border: none;
    color: var(--color-dark-grey);
    cursor: pointer;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    padding: 0;
    transition: color 0.2s;
    display: flex;
    align-items: center;
}

.back-btn:hover {
    color: var(--accent-color);
}

footer {
    text-align: center;
    padding: 10px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 5px 0;
    font-weight: bold;
}

.disclaimer {
    color: #666;
    font-size: 0.75rem;
    margin: 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.help-keywords {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.help-meta {
    font-size: 0.9rem;
    color: var(--color-dark-grey);
    display: flex;
    gap: 1rem;
}

.meta-tag {
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
}

.help-body {
    white-space: pre-wrap;
    font-family: 'Consolas', 'Monaco', monospace;
    /* MUD feeling */
    font-size: 1.1rem;
    background-color: #0a0a0a;
    padding: 1.5rem;
    border-radius: 4px;
    border: 1px solid #333;
}

/* Color Classes */
.color-cyan {
    color: var(--color-cyan);
}

.color-bright-cyan {
    color: var(--color-bright-cyan);
    font-weight: bold;
}

.color-green {
    color: var(--color-green);
}

.color-bright-green {
    color: var(--color-bright-green);
    font-weight: bold;
}

.color-red {
    color: var(--color-red);
}

.color-bright-red {
    color: var(--color-bright-red);
    font-weight: bold;
}

.color-white {
    color: var(--color-white);
}

.color-bright-white {
    color: var(--color-bright-white);
    font-weight: bold;
}

.color-yellow {
    color: var(--color-yellow);
}

.color-bright-yellow {
    color: var(--color-bright-yellow);
    font-weight: bold;
}

.color-blue {
    color: var(--color-blue);
}

.color-bright-blue {
    color: var(--color-bright-blue);
    font-weight: bold;
}

.color-magenta {
    color: var(--color-magenta);
}

.color-bright-magenta {
    color: var(--color-bright-magenta);
    font-weight: bold;
}

.color-dark-grey {
    color: var(--color-dark-grey);
}

.color-orange {
    color: var(--color-orange);
}

.color-bright-orange {
    color: var(--color-bright-orange);
    font-weight: bold;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        max-height: 40vh;
    }

    /* Stack header items */
    header {
        flex-wrap: wrap;
        padding: 0.5rem 1rem;
    }

    .header-left {
        margin-bottom: 0.5rem;
    }

    /* Dashboard single column */
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Tighter padding for content */
    .help-body {
        padding: 1rem;
        font-size: 1rem;
        /* Slightly smaller text for mobile */
    }

    .dashboard-category {
        padding: 1rem;
    }
}

/* Mudlinks */
.mudlink-simple,
.mudlink-action {
    color: var(--accent-color);
    text-decoration: underline;
    cursor: pointer;
    font-weight: bold;
}

.mudlink-simple:hover,
.mudlink-action:hover {
    color: var(--color-bright-cyan);
    text-shadow: 0 0 5px rgba(0, 188, 212, 0.4);
}

.mudlink-external {
    color: var(--color-bright-green);
    text-decoration: none;
    border-bottom: 1px dotted var(--color-bright-green);
}


/* Mudlinks ... (existing) */
.mudlink-external::after {
    content: " ↗";
    font-size: 0.8em;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(2px);
}

.modal-content {
    background: var(--card-bg);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 20px rgba(0, 188, 212, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    color: var(--accent-color);
    margin: 0;
    font-size: 1.2rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
}

.close-btn:hover {
    color: var(--accent-color);
}

.cat-list {
    overflow-y: auto;
    padding: 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.cat-list-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.8rem;
    text-align: left;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.cat-list-btn:hover {
    background: var(--accent-color);
    color: #000;
    transform: translateX(5px);
}

@media (max-width: 600px) {
    .cat-list {
        grid-template-columns: 1fr;
    }
}

.highlight-category {
    animation: highlightParams 2s ease-out;
}

@keyframes highlightParams {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 188, 212, 0);
    }

    20% {
        box-shadow: 0 0 20px 5px rgba(0, 188, 212, 0.5);
        border-color: var(--accent-color);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 188, 212, 0);
    }
}