:root {
    /* ===== Colors ===== */
    --color-bg-body: #585858;
    --color-bg-surface: #818181a1;
    --color-bg-footer: #92929200;
    --color-bg-button: #4bb9945b;
    --color-bg-button-hover: #740000b7;

    --color-text-primary: #222222;
    --color-text-secondary: #555555;
    --color-text-muted: #2e2e2e;
    --color-text-inverse: #ffffff;

    --color-border: rgba(0, 0, 0, 0.11);
    --shadow-soft: 0 2px 6px rgba(0, 0, 0, 0.08);
    --radius-base: 6px;
    --radius-large: 12px;

    /* ===== Fonts ===== */
    --font-family-base: "Inter", "Helvetica Neue", Arial, sans-serif;
    --font-family-handjet: "Handjet", var(--font-family-base);
    --font-family-stalinist: "Stalinist One", var(--font-family-base);

    --font-size-base: 1rem;
    --font-size-small: 0.875rem;
    --font-size-footer: 0.69rem;
    --font-size-large: 1.25rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 600;

    /* ===== Spacing ===== */
    --gap: 8px;
    --padding: 8px;
    --padding-section: 16px;
    --footer-padding: 6px 10px;

    /* ===== Transitions & Opacity ===== */
    --transition-base: all 0.25s ease;
    --transition-opacity: 0.3s ease;
    --opacity-footer-text: 0.7;
    --opacity-footer-text-hover: 1;
}

/* ===== Global ===== */
* {
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) var(--color-bg-surface);
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100svh;
    overflow: hidden;
}

/* ===== Scrollbars ===== */
*::-webkit-scrollbar { width: 10px; }
*::-webkit-scrollbar-track {
    background: var(--color-bg-surface);
    border-radius: var(--radius-base);
}
*::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: var(--radius-base);
    border: 2px solid var(--color-bg-surface);
}
*::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-text-primary);
}

/* ===== Grid Wrapper ===== */
.parent {
    display: grid;
    grid-template-columns: 250px 1fr; /* nav | content */
    grid-template-rows: 100px 1fr 40px; /* header | middle | footer */

    gap: var(--gap);
    width: 100vw;
    padding: var(--padding);
    background: var(--color-bg-body);
    height: 100svh;
}

/* ===== Header ===== */
#hd-container {
    grid-column: 1 / 3;
    grid-row: 1 / 2;
}

header {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    height: 100px;
    padding: 0 20px;
    background: var(--color-bg-footer);
    font-family: var(--font-family-handjet);
    border-radius: var(--radius-base);
}

header img,
header a img {
    position: relative;
    left: 10px;
    width: 75px;
    height: 75px;
    border-radius: 50%;
    object-fit: cover;
}

header a {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
}

/* ===== Page Title ===== */
.page-title {
    font-size: 4.3rem;
}

/* ===== Panels ===== */
.Nav-Console, .div3 {
    border-radius: var(--radius-base);
    background: var(--color-bg-surface);
    box-shadow: var(--shadow-soft);
    height: 100%;
}

/* ===== Navigation Panel ===== */
#nav-container {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    font-family: var(--font-family-handjet);   
}

.Nav-Console .Project-Title li a {
    background-color: #22222286;
    color: var(--color-bg-button);
    text-align: center;
    font-size: calc(var(--font-size-large) / 2);
}

.Nav-Console .Project-Buttons li a {
    background-color: var(--color-bg-button);
    color: var(--color-text-secondary);
    text-align: center;
    font-size: var(--font-size-small);
}

.Nav-Console h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.Nav-Console h5 {
    margin: 2% 10%;
}

.Nav-Console ul, ol {
    list-style: none;
    padding: 0;
    margin: 5px;
    display: flex;
    flex-direction: column;
}

.Nav-Console li {
    overflow: hidden;
    border-radius: var(--radius-base);
}

.Nav-Console li a {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 0;
    border-radius: var(--radius-base);
    background: var(--color-bg-button);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    text-decoration: none;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-base);
    margin: 1%;
}

.Nav-Console li a:hover {
    background: var(--color-bg-button-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.12);
}

.MyOS-Modules {
    margin: 0 5px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* ===== Main Panel ===== */
#content-container {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    display: flex;
    flex-direction: column;
    gap: calc(var(--gap) * 1.5);
}

.div3 h2, .div3 h3 {
    margin: 0;
    text-align: center;
}

.div3 h2 {
    font-size: 1.8rem;
    font-family: var(--font-family-handjet);
}

.div3 h3 {
    font-size: 1.4rem;
    color: var(--color-text-secondary);
    font-family: var(--font-family-handjet);
}

.div3 p, .div3 ol li, .div3 ul li {
    font-size: var(--font-size-large);
    line-height: 1.6;
    margin-bottom: 0.6rem;
}

.div3 p {
    margin: 0;
    font-size: var(--font-size-small);
}

.div3 ol, .div3 ul {
    padding-left: 0.75rem;
    margin: 5px;
}

.div3 .info-note {
    font-style: italic;
    background: rgba(255, 255, 255, 0.1);
    border-left: 4px solid var(--color-bg-button);
    border-radius: var(--radius-base);
    color: var(--color-text-muted);
    padding: 1%;
}

.div3 .info-note a {
    text-decoration: none;
    color: var(--color-text-muted);    
    border-radius: var(--radius-base);
    padding: 5px;
    background-color: var(--color-bg-button);
    border: 1px solid;
}

.div3 .info-note ul {
    list-style: none;
}

.div3 .info-section {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 10px;
    font-size: var(--font-size-small);
    height: 100%;
    padding: 2%;
    overflow-y: auto;
}

/* ===== Social Links ===== */
.socials-sections {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
}

.socials h2 {
    text-align: center;
}

.social-links {
    display: flex;
    gap: 25px;
}

.social-links p {
    margin: 0;
}

.social-links a {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
    font-size: var(--font-size-small);
    transition: transform 0.3s, filter 0.3s;
}

.social-links a img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.social-links a:hover {
    transform: scale(1.2);
    filter: brightness(1.3);
}

/* ===== Footer ===== */
#ft-container {
    grid-column: 1 / 3;
    grid-row: 3 / 4;
}

footer {
    grid-column: 1 / 3;
    grid-row: 3 / 4;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--footer-padding);
    font-family: var(--font-family-handjet);
    font-size: var(--font-size-footer);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-muted);
    letter-spacing: 0.3px;
    user-select: none;
    line-height: 1;
    border: 1px solid var(--color-border);
}

footer p {
    margin: 0;
    opacity: var(--opacity-footer-text);
    transition: opacity var(--transition-opacity);
}

footer p:hover {
    opacity: var(--opacity-footer-text-hover);
}

/* ===== Code Styling ===== */
code {
    background-color: #525252;
    font-family: var(--font-family-handjet);
    padding: 2px 4px;
    border-radius: 3px;
    border-left: 3px solid green;
}