:root {
    --bg-color: #030303;
    --text-main: #f0f0f0;
    --text-muted: #555555;
    --accent: #00ffcc; /* Hacker cyan */
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-mono);
    overflow: hidden;
    height: 100vh;
    -webkit-font-smoothing: antialiased;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Very subtle grid overlay to give it a technical drawing feel */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 2;
    pointer-events: none;
}

.terminal-ui {
    position: relative;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.5rem 3rem;
    pointer-events: none;
}

.mono-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Header */
.sys-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    opacity: 0;
}

.sys-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.blinking-block {
    width: 10px;
    height: 12px;
    background-color: var(--accent);
    animation: blink 1s step-end infinite;
    box-shadow: 0 0 8px rgba(0, 255, 204, 0.4);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Center Content */
.center-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transform: translateY(-20px);
}

.logo-text {
    font-family: var(--font-mono);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
    transition: color 0.3s;
}

/* Tiny glitch/scanline after-effect on hover */
.logo-text:hover {
    color: var(--accent);
    text-shadow: 2px 0 var(--text-muted), -2px 0 var(--text-main);
}

.subtitle {
    margin-bottom: 3.5rem;
    font-weight: 400;
    font-size: 0.85rem;
}

/* Button */
.cmd-btn {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    letter-spacing: 0.15em;
    cursor: pointer;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    transition: color 0.2s;
    opacity: 0;
}

.cmd-bracket {
    color: var(--text-muted);
    font-weight: 700;
    transition: color 0.2s, transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cmd-btn:hover {
    color: var(--accent);
}

.cmd-btn:hover .cmd-bracket {
    color: var(--accent);
}
.cmd-btn:hover .cmd-bracket:first-child {
    transform: translateX(-6px);
}
.cmd-btn:hover .cmd-bracket:last-child {
    transform: translateX(6px);
}

/* Footer */
.sys-footer {
    opacity: 0;
}

.footer-line {
    width: 100%;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.15);
    margin-bottom: 12px;
}