/* =========================================
   BASE STYLES: Variables, Resets, Globals
   ========================================= */

:root {
    --bg-base: #1a2025;
    /* Dark top-bar context background */
    --bg-light: #242c33;
    /* Main panels */
    --bg-dark: #141a1e;
    /* Darker accents */
    --bg-darker: #0f1317;
    --bg-black: #080a0c;
    /* Dark text */

    --text-main: #f1f5f9;
    /* Light text for legibility */
    --text-muted: #94a3b8;
    --text-highlight: #ff5722;
    /* Vibrant orange */

    --accent-orange: #ff5722;
    --border-light: #303b46;
    --border-dark: #1a2025;

    --green-positive: #228b22;
    /* Classic web green */

    /* Classic Web Fonts */
    --font-sys: 'Trebuchet MS', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-sys);
    font-size: 13px;
    /* Slightly larger for readability */
    line-height: 1.5;
    overflow-x: hidden;
}

/* Background solid color */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #242c33;
    z-index: -1;
}

/* Mainframe Container */
.mainframe {
    max-width: 980px;
    /* Classic 2000s width */
    margin: 20px auto;
    background: var(--bg-base);
    border: 1px solid var(--border-dark);
    box-shadow:
        inset 1px 1px 0 rgba(255, 255, 255, 0.3),
        inset -1px -1px 0 rgba(0, 0, 0, 0.5),
        0 10px 30px rgba(0, 0, 0, 0.8);
    position: relative;
}