:root {
    --bg-color: #0a0a0a;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #e5e5e5;
    --text-dim: #666;
    --accent-red: #d71921;
    --font-mono: 'Space Mono', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    height: 100vh;
    overflow: hidden; /* For the "app" feel */
    position: relative;
}

/* --- Internal Hardware Layer --- */
.layer-internals {
    position: fixed;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    z-index: 0;
    pointer-events: none;
}

.circuit-bg {
    width: 100%;
    height: 100%;
    background-image: url('assets/bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.6;
    filter: grayscale(100%) contrast(1.2) brightness(0.6);
}

/* --- Glass Interface Layer --- */
.layer-glass {
    position: relative;
    z-index: 10;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: radial-gradient(circle at center, transparent 0%, #000 120%); /* Vignette */
    overflow-y: auto;
}

/* Grid overlay for texture */
.layer-glass::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.2;
    pointer-events: none;
    z-index: -1;
}

/* --- Nav --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(5px);
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.05em;
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    margin: 0 1rem;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--text-primary);
    text-decoration: line-through; /* Strikethrough hover effect */
}

.nav-status {
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-red);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-red);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.4; }
    100% { opacity: 1; }
}

/* --- Main Layout --- */
main {
    flex: 1;
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.hero-content h1 {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: 1rem;
    font-weight: 400;
    letter-spacing: -2px;
    position: relative;
    /* Simulate transparency in text effectively punching through to bg */
    mix-blend-mode: overlay; 
    color: #fff;
    opacity: 0.9;
}

.tracker {
    font-size: 0.8rem;
    color: var(--accent-red);
    margin-top: 2rem;
    font-family: monospace;
}

/* --- Glass Panels --- */
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 2rem;
    border-radius: 2px; /* Slight rounding or none for industrial */
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, border-color 0.2s;
}

.glass-panel:hover {
    border-color: rgba(255,255,255,0.3);
    /* transform: translateY(-2px); */
}

.card {
    width: 300px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    color: var(--text-dim);
}

.card-footer {
    font-size: 0.7rem;
    text-align: right;
    color: var(--accent-red);
}

/* --- Grid Display --- */
.grid-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.grid-item h3 {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    color: var(--text-dim);
}

/* Bar Chart */
.bar-chart {
    height: 100px;
    display: flex;
    align-items: flex-end;
    gap: 10px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 5px;
}

.bar {
    flex: 1;
    background: rgba(255,255,255,0.5);
    transition: height 1s ease;
}

.bar:nth-child(even) {
    background: var(--accent-red);
}

/* Data Rows */
.data-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.big-stat {
    font-size: 3rem;
    color: #fff;
}

/* Alert style */
.alert {
    border-color: var(--accent-red);
    position: relative;
    overflow: hidden;
}

.alert::after {
    content:"";
    position: absolute;
    top:0; left:0; width:100%; height:100%;
    background: linear-gradient(45deg, transparent 50%, rgba(215, 25, 33, 0.1) 100%);
    pointer-events: none;
}

/* --- Footer --- */
footer {
    padding: 1rem 0;
    border-top: 1px solid var(--glass-border);
    background: rgba(0,0,0,0.5);
    overflow: hidden;
    white-space: nowrap;
}

.marquee span {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 20s linear infinite;
    color: var(--text-dim);
    font-size: 0.8rem;
}

@keyframes marquee {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

/* --- Cursor Light --- */
.cursor-light {
    position: fixed;
    top: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none; /* Let clicks pass through */
    z-index: 5;
    mix-blend-mode: screen;
}