:root {
    --color-black: #000000;
    --color-dark-grey: #333333;
    --color-medium-grey: #666666;
    --color-light-grey: #999999;
    --color-lighter-grey: #cccccc;
    --color-lightest-grey: #f5f5f5;
    --color-white: #ffffff;
    --color-primary: var(--color-black);
    --color-secondary: var(--color-medium-grey);
    --font-mono: 'JetBrains Mono', Consolas, Monaco, 'Courier New', monospace;
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.mobile-header,
.mobile-banner {
    display: none;
}
.when-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-black);
    color: var(--color-white);
    height: 24px;
    overflow: hidden;
    z-index: 1000;
    font-family: var(--font-mono);
}
.when-content {
    position: absolute;
    white-space: nowrap;
    font-size: 11px;
    top: 0;
    line-height: 24px;
    will-change: transform;
}
.when-content.loading {
    animation: when-loading 8s linear 1;
}
.when-content.live {
    animation: when-scroll 45s linear infinite;
}
.when-content.time-displays {
    position: static !important;
    width: 100% !important;
    height: 24px !important;
    line-height: 24px !important;
    font-size: 11px;
    color: var(--color-white) !important;
    background-color: transparent !important;
    animation: none !important;
    transform: none !important;
    padding: 0;
    display: flex !important;
    justify-content: space-between;
    align-items: center;
}
.when-content.time-displays .session-time {
    flex: 1;
    text-align: center;
    font-weight: normal;
}
.when-content.time-displays .cosmic-time {
    position: absolute;
    right: 10px;
    font-weight: normal;
    letter-spacing: 0.5px;
}
.when-content.time-displays .y2k-time {
    position: absolute;
    left: 10px;
    font-weight: normal;
}
@keyframes when-loading {
    0% { transform: translateX(100vw); }
    100% { transform: translateX(-100%); }
}
@keyframes when-scroll {
    0% { transform: translateX(100vw); }
    100% { transform: translateX(-100%); }
}
body {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.4;
    background-color: var(--color-white);
    color: var(--color-black);
    overflow: hidden;
    height: 100vh;
}
.how-nav {
    background-color: var(--color-lightest-grey);
    border-bottom: 2px solid var(--color-black);
    padding: var(--space-sm) 0;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-md);
}
.logo a {
    font-weight: bold;
    font-size: 14px;
    color: var(--color-primary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}
.nav-menu a {
    color: var(--color-dark-grey);
    text-decoration: none;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid transparent;
    transition: all 0.2s ease;
}
.nav-menu a:hover {
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    background-color: var(--color-white);
}
.main-container {
    display: flex;
    height: calc(100vh - 60px - 24px);
}
.what-sidebar {
    width: 33.333%;
    background-color: var(--color-lightest-grey);
    border-right: 2px solid var(--color-black);
    padding: var(--space-lg);
    overflow-y: auto;
    height: 100%;
}
.menu-container {
    font-size: 11px;
    font-family: var(--font-mono);
}
#menu-loading {
    padding: var(--space-md);
    color: var(--color-medium-grey);
    font-style: italic;
}
.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.menu-item {
    margin: 0;
    padding: 0;
}
.menu-link {
    display: block;
    color: var(--color-dark-grey);
    text-decoration: none;
    padding: 2px 0;
    font-family: var(--font-mono);
    line-height: 1.4;
    transition: color 0.1s ease;
    white-space: pre; 
}
.menu-link:hover {
    color: var(--color-primary);
    background-color: var(--color-lightest-grey);
}
.menu-link.active {
    color: var(--color-primary);
    font-weight: bold;
}
.menu-level-1 {
    padding-left: 0;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: var(--space-sm) 0 var(--space-xs) 0;
}
.menu-level-2 {
    padding-left: 16px; 
    text-transform: lowercase;
}
.menu-level-3 {
    padding-left: 32px; 
    font-size: 10px;
    color: var(--color-medium-grey);
}
.menu-level-4 {
    padding-left: 48px; 
    font-size: 10px;
    color: var(--color-light-grey);
}
.db-status {
    padding: var(--space-xs) var(--space-sm);
    font-size: 9px;
    color: var(--color-light-grey);
    border-top: 1px solid var(--color-lighter-grey);
    margin-top: var(--space-md);
}
.db-status.connected {
    color: var(--color-dark-grey);
}
.db-status.error {
    color: var(--color-primary);
}
.why-content {
    width: 66.667%;
    padding: var(--space-xl);
    overflow-y: auto;
    height: 100%;
}
#content-display {
    max-width: 800px;
}
#content-display h1 {
    font-size: 18px;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--space-sm);
}
#content-display h2 {
    font-size: 14px;
    color: var(--color-dark-grey);
    margin: var(--space-xl) 0 var(--space-md) 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
#content-display h3 {
    font-size: 12px;
    color: var(--color-medium-grey);
    margin: var(--space-lg) 0 var(--space-sm) 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
#content-display p {
    margin-bottom: var(--space-md);
    line-height: 1.6;
    color: var(--color-dark-grey);
}
#content-display ul,
#content-display ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-lg);
}
#content-display li {
    margin-bottom: var(--space-xs);
    color: var(--color-dark-grey);
}
#content-display strong {
    color: var(--color-primary);
}
#content-display code {
    background-color: var(--color-lightest-grey);
    padding: 2px 4px;
    border: 1px solid var(--color-lighter-grey);
    font-family: var(--font-mono);
}
#content-display pre {
    background-color: var(--color-lightest-grey);
    padding: var(--space-md);
    border: 1px solid var(--color-lighter-grey);
    margin: var(--space-md) 0;
    overflow-x: auto;
}
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Global button states for content viewer */
button.active,
.preview-btn.active,
.selector-btn.selected {
    background: var(--color-accent) !important;
    color: var(--color-primary) !important;
    font-weight: 600;
    border-color: var(--color-accent) !important;
}

.selector-btn.selected:hover {
    opacity: 0.9;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.nav-back-button {
    display: none;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    cursor: pointer;
    margin-bottom: var(--space-md);
    width: 100%;
}
.nav-back-button:hover {
    background: var(--color-dark-grey);
}
.mobile-category-view {
    display: none;
}
.mobile-category-view.active {
    display: block;
}
@media (max-width: 768px) {
    .how-nav {
        display: none !important; 
    }
    .when-bar {
        display: none !important; 
    }
    .mobile-header {
        display: block;
        background-color: var(--color-black);
        color: var(--color-white);
        padding: var(--space-sm) 0;
        position: sticky;
        top: 0;
        z-index: 1000;
    }
    .mobile-header-content {
        text-align: center;
        font-weight: bold;
        font-size: 14px;
        letter-spacing: 1px;
    }
    .mobile-banner {
        display: block;
        background-color: var(--color-dark-grey);
        color: var(--color-white);
        height: 20px;
        overflow: hidden;
        position: relative;
        line-height: 20px;
    }
    .mobile-banner-content {
        position: absolute;
        white-space: nowrap;
        font-size: 10px;
        top: 0;
        animation: ticker-scroll 60s linear infinite;
        will-change: transform;
    }
    @keyframes ticker-scroll {
        0% { transform: translateX(100vw); }
        100% { transform: translateX(-33.33%); }
    }
    .nav-container {
        flex-direction: column;
        padding: var(--space-sm);
    }
    .nav-menu {
        display: none; 
    }
    .nav-menu a {
        font-size: 10px;
        padding: var(--space-xs);
    }
    .main-container {
        flex-direction: column;
        min-height: calc(100vh - 58px); 
    }
    .what-sidebar {
        width: 100%;
        max-height: none;
        border-right: none;
        border-bottom: 2px solid var(--color-black);
        padding: var(--space-md);
        position: static;
    }
    .why-content {
        width: 100%;
        padding: var(--space-md);
        display: none; 
    }
    .why-content.mobile-show {
        display: block;
    }
    .menu-container {
        font-size: 12px;
    }
    .menu-link {
        padding: var(--space-sm) var(--space-xs);
        margin: var(--space-xs) 0;
    }
    .menu-level-2 {
        padding-left: 12px;
    }
    .menu-level-3 {
        padding-left: 24px;
    }
    #content-display h1 {
        font-size: 16px;
    }
}
@media (min-width: 481px) and (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }
    .what-sidebar {
        width: 100%;
        max-height: 40vh;
        overflow-y: auto;
        border-right: none;
        border-bottom: 2px solid var(--color-black);
    }
    .why-content {
        width: 100%;
        max-height: 60vh;
        overflow-y: auto;
    }
    .nav-container {
        flex-direction: column;
        gap: var(--space-sm);
    }
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-sm);
    }
}
@media (min-width: 769px) and (max-width: 1024px) {
    .what-sidebar {
        width: 35%;
    }
    .why-content {
        width: 65%;
    }
    .nav-menu {
        gap: var(--space-md);
    }
}
@media (min-width: 1025px) {
    .what-sidebar {
        width: 33.333%;
    }
    .why-content {
        width: 66.667%;
    }
}
@media (min-width: 1400px) {
    .nav-container {
        max-width: 1400px;
    }
    .what-sidebar {
        width: 30%;
    }
    .why-content {
        width: 70%;
    }
}
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }
}
a:focus,
.tree-toggle:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}