:root {
    --tactical-green: #39ff14;
    --neon-cyan: #00f3ff;
    --warning-orange: #ff6b1a;
    --danger-red: #ff0844;
    --deep-dark: #0a0e17;
    --carbon-fiber: #12161f;
    --hud-glass: rgba(18, 22, 31, 0.85);
    --grid-glow: rgba(57, 255, 20, 0.15);
}

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

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--deep-dark);
    color: #e0e6ed;
    overflow-x: hidden;
    position: relative;
    height: 100vh;
}

/* ANIMATED GRID BACKGROUND */
.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    perspective: 1000px;
}

.grid-layer {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background-image:
        linear-gradient(var(--grid-glow) 2px, transparent 2px),
        linear-gradient(90deg, var(--grid-glow) 2px, transparent 2px);
    background-size: 60px 60px;
    animation: gridScroll 20s linear infinite;
    transform: rotateX(65deg) translateZ(-200px);
}

@keyframes gridScroll {
    0% {
        transform: rotateX(65deg) translateZ(-200px) translateY(0);
    }

    100% {
        transform: rotateX(65deg) translateZ(-200px) translateY(60px);
    }
}

/* PARTICLE SYSTEM */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* MAIN CONTAINER */
.maintenance-wrapper {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* HOLOGRAPHIC HUD */
.hud-frame {
    max-width: 1400px;
    width: 100%;
    background: var(--hud-glass);
    backdrop-filter: blur(25px);
    border: 2px solid var(--tactical-green);
    border-radius: 0;
    position: relative;
    box-shadow:
        0 0 40px rgba(57, 255, 20, 0.3),
        inset 0 0 60px rgba(0, 243, 255, 0.05);
    overflow: hidden;
}

.hud-frame::before,
.hud-frame::after {
    content: '';
    position: absolute;
    background: var(--tactical-green);
    z-index: 5;
}

.hud-frame::before {
    width: 40px;
    height: 2px;
    top: -2px;
    left: 20px;
    box-shadow: 0 0 10px var(--tactical-green);
}

.hud-frame::after {
    width: 2px;
    height: 40px;
    top: 20px;
    left: -2px;
    box-shadow: 0 0 10px var(--tactical-green);
}

/* CORNER ACCENTS */
.corner-accent {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 3px solid var(--tactical-green);
    z-index: 6;
}

.corner-tl {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.corner-tr {
    top: -3px;
    right: -3px;
    border-left: none;
    border-bottom: none;
}

.corner-bl {
    bottom: -3px;
    left: -3px;
    border-right: none;
    border-top: none;
}

.corner-br {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
}

/* SCAN LINE EFFECT */
.scan-line {
    position: absolute;
    width: 100%;
    height: 3px;
    background: linear-gradient(to bottom, transparent, var(--neon-cyan), transparent);
    top: 0;
    left: 0;
    animation: scanMove 4s ease-in-out infinite;
    opacity: 0.4;
    box-shadow: 0 0 15px var(--neon-cyan);
    z-index: 7;
}

@keyframes scanMove {

    0%,
    100% {
        top: 0;
    }

    50% {
        top: calc(100% - 3px);
    }
}

/* HEADER */
.hud-header {
    background: linear-gradient(135deg, rgba(57, 255, 20, 0.1), rgba(0, 243, 255, 0.05));
    border-bottom: 2px solid var(--tactical-green);
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--tactical-green), var(--neon-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(57, 255, 20, 0.5);
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {

    0%,
    100% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(1.3);
    }
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--warning-orange);
    text-transform: uppercase;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--warning-orange);
    box-shadow: 0 0 15px var(--warning-orange);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(1.2);
    }
}

/* MAIN CONTENT */
.hud-content {
    padding: 4rem 3rem;
}

.primary-message {
    text-align: center;
    margin-bottom: 3rem;
}

.primary-message h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 4.5rem;
    font-weight: 900;
    color: var(--tactical-green);
    text-transform: uppercase;
    letter-spacing: 8px;
    margin-bottom: 1rem;
    text-shadow:
        0 0 20px rgba(57, 255, 20, 0.6),
        0 0 40px rgba(57, 255, 20, 0.3);
    animation: flicker 5s ease-in-out infinite;
}

@keyframes flicker {

    0%,
    100% {
        opacity: 1;
    }

    94%,
    96% {
        opacity: 0.8;
    }

    95% {
        opacity: 1;
    }
}

.primary-message h2 {
    font-size: 1.8rem;
    font-weight: 300;
    color: #a0aec0;
    letter-spacing: 2px;
    margin-bottom: 2rem;
}

.system-message {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    color: var(--neon-cyan);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

/* TACTICAL GRID DISPLAY */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.info-panel {
    background: rgba(0, 243, 255, 0.03);
    border: 1px solid var(--neon-cyan);
    border-left: 4px solid var(--tactical-green);
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
}

.info-panel:hover {
    background: rgba(57, 255, 20, 0.05);
    border-left-width: 6px;
    box-shadow: 0 0 25px rgba(57, 255, 20, 0.2);
    transform: translateX(5px);
}

.info-panel h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    color: var(--tactical-green);
    text-transform: uppercase;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.info-panel p {
    font-size: 1.05rem;
    color: #cbd5e0;
    line-height: 1.7;
}

.info-panel .panel-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--neon-cyan);
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    opacity: 0.5;
}

/* PROGRESS SYSTEM */
.progress-container {
    margin: 3rem auto;
    max-width: 700px;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--tactical-green);
    margin-bottom: 0.5rem;
}

.progress-bar-outer {
    height: 30px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--tactical-green);
    position: relative;
    overflow: hidden;
}

.progress-bar-inner {
    height: 100%;
    background: linear-gradient(90deg, var(--tactical-green), var(--neon-cyan));
    width: 0%;
    animation: progressLoad 8s ease-in-out infinite;
    box-shadow: 0 0 20px var(--tactical-green);
    position: relative;
}

.progress-bar-inner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s linear infinite;
}

@keyframes progressLoad {
    0% {
        width: 0%;
    }

    50% {
        width: 75%;
    }

    100% {
        width: 100%;
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* TERMINAL OUTPUT */
.terminal-window {
    background: #000;
    border: 2px solid var(--tactical-green);
    border-radius: 0;
    padding: 1.5rem;
    margin: 3rem 0;
    max-height: 300px;
    overflow-y: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    box-shadow:
        inset 0 0 30px rgba(57, 255, 20, 0.1),
        0 0 30px rgba(0, 0, 0, 0.8);
}

.terminal-window::-webkit-scrollbar {
    width: 10px;
}

.terminal-window::-webkit-scrollbar-track {
    background: #000;
}

.terminal-window::-webkit-scrollbar-thumb {
    background: var(--tactical-green);
    box-shadow: 0 0 10px var(--tactical-green);
}

.terminal-line {
    color: var(--tactical-green);
    margin-bottom: 0.3rem;
}

.terminal-line.warning {
    color: var(--warning-orange);
}

.terminal-line.error {
    color: var(--danger-red);
}

.terminal-line.info {
    color: var(--neon-cyan);
}

.terminal-cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: var(--tactical-green);
    animation: blink 1s step-end infinite;
    margin-left: 4px;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

/* FOOTER */
.hud-footer {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(18, 22, 31, 0.8));
    border-top: 2px solid var(--tactical-green);
    padding: 2rem 3rem;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--neon-cyan);
    text-decoration: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--tactical-green);
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: var(--tactical-green);
}

.footer-links a:hover::after {
    width: 100%;
}

.footer-copyright {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: #64748b;
    margin-top: 1rem;
}

/* FLOATING ICONS */
.floating-icon {
    position: absolute;
    font-size: 3rem;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 60%;
    right: 8%;
    animation-delay: 2s;
}

.floating-icon:nth-child(3) {
    bottom: 15%;
    left: 10%;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hud-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }

    .logo {
        font-size: 1.8rem;
    }

    .primary-message h1 {
        font-size: 2.5rem;
        letter-spacing: 4px;
    }

    .primary-message h2 {
        font-size: 1.2rem;
    }

    .hud-content {
        padding: 2rem 1.5rem;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .corner-accent {
        width: 40px;
        height: 40px;
    }
}