:root {
    --size-sidebar: 230px;
    --background-color-main:#0b1917;
    --background-color-sidebar:#556361;
    --background-color-map:#3b4141;
    --text-color-main: #eeeeee;
    --button-color-neutral: #223945;
    --button-color-active: #4CAF50;
    --button-color-inactive: #e0e0e0;
    --button-color-text: #eeeeee;
    --button-color-text-neutral: #779cb0;
    --button-color-text-inactive: #5d5d5d;
    --button-selection-color: #2c5e57;
    --button-selection-color-hover: #2c9788;
    --button-selection-border: #0c1a18;
    --font-sans-serif: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, Adwaita Sans, Cantarell, Ubuntu, roboto, noto, helvetica, arial, sans-serif;
    --font-serif: Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;
    --font-monospace: Menlo, Consolas, Monaco, Adwaita Mono, Liberation Mono, Lucida Console, monospace;
}

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

html, body {
    height: 100%;
    overflow: hidden;
    width: 100%;
}

body {
    background-color: var(--background-color-main);
    font-family: var(--font-sans-serif);
    font-size: 100%;
}

.container {
    height: 100vh;
    width: 100vw;
}

.menu-toggle {
    border: none;
    background-color: var(--button-color-active);
    color: var(--text-color-main);
    cursor: pointer;
    font-size: 1.75rem;
    left: 4px;
    padding: 0 0.25rem 0.25rem 0.25rem;
    position: fixed;
    top: 4px;
    z-index: 1200;
}

/* Sidebar */
.sidebar {
    background: var(--background-color-sidebar);
    display: flex;
    flex-direction: column;
    height: 100vh;
    justify-content: flex-start;
    left: 0;
    position: fixed;
    overflow-x: auto;
    top: 0;
    transform: translateX(0);
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
    width: var(--size-sidebar);
    z-index: 1100;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar-header {
    color: var(--text-color-main);
    margin-bottom: 0.5rem;
    margin-top: 0.75em;
    text-align: center;
}

.sidebar-info {
    color: var(--text-color-main);
    margin-left: 2.5rem;
    padding: 0.25rem;
    text-align: right;
}

.sidebar-header h1 {
    font-size: 1.8rem;
}

.sidebar-header h2 {
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* Navigation */
.nav-link-group {
    display: flex;
    flex-direction: column;
    width: 90%;
    margin: 0 auto 0.75rem auto;
}

.nav-link {
    border: none;
    color: var(--button-color-text);
    font-size: 1rem;
    line-height: 1.5;
    text-decoration: none;
    transition: background 0.2s;
}

.nav-link.active, .nav-link:hover {
    color: var(--button-color-active);
}

/* Map Selector */
.map-selector {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.map-button {
    background-color: var(--button-color-neutral);
    border-radius: 4px;
    border: none;
    color: var(--button-color-text-neutral);
    cursor: pointer;
    font-size: 1rem;
    margin: 0.15em auto;
    padding: 0.6em;
    transition: all 0.2s ease;
    width: 90%;
}

.map-button.active, .map-button:hover {
    background: var(--button-color-active);
    color: var(--button-color-text);
}

.map-button.inactive {
    background-color: var(--button-color-inactive);
    color: var(--button-color-text-inactive);
    cursor: not-allowed;
}

.map-button.inactive:hover {
    background-color: var(--button-color-inactive);
    color: var(--button-color-text-inactive);
}

/* Main Content */
main {
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin-left: 0;
    transition: margin-left 0.3s cubic-bezier(0.4,0,0.2,1);
    width: 100vw;
}

nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.page {
    display: none;
    height: 100%;
}

.page.active {
    display: flex;
    flex-direction: column;
}

/* Overlay Pages */
.overlay-page {
    align-items: center;
    background-color: rgba(0,0,0,0.33);
    display: none;
    height: 100vh;
    justify-content: center;
    left: 0;
    position: fixed;
    top: 0;
    width: 100vw;
    z-index: 2000;
}
.overlay-page.active {
    display: flex;
}
.always-active {
    display: flex !important;
}
.close-overlay {
    background: var(--button-color-active);
    border-radius: 4px;
    border: none;
    color: var(--button-color-text);
    cursor: pointer;
    float: right;
    font-size: 1rem;
    margin-bottom: 1em;
    padding: 0.5em 1em;
}
.close-overlay:hover {
    background: #357a38;
}

/* About Page */
.about-content {
    background-color: var(--text-color-main);
    margin: 0 auto;
    max-width: min(90%, 800px);
    max-height: 90vh;
    overflow-x: scroll;
    padding: 20px;
}

.about-content h1, .about-content h2 {
    color: var(--button-color-neutral);
    margin: 0.5rem 0;
}

.about-content p, .about-content li {
    color: var(--background-color-main);
    line-height: 1.5;
}

.about-content pre {
    white-space:pre-wrap;
    word-wrap:break-word;
}