:root {
    --phosphor-green: #33FF66;
    --phosphor-green-dim: #1A8C3D;
    --steel-blue: #4A7BA8;
    --steel-blue-light: #6B9CC8;
    --steel-blue-dark: #2B4E6B;
    --dark-bg: #0a0a0a;
    --darker-bg: #050508;
    --text-primary: #33FF66;
    --text-secondary: #4A7BA8;
    --text-dim: #2A5A6A;
    --border-color: #3A4A5A;
}

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

body {
    font-family: 'VT323', monospace;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 10000;
    opacity: 0.6;
}

.crt-overlay::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        rgba(0, 0, 0, 0.4) 100%
    );
    pointer-events: none;
}

.crt-flicker {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(51, 255, 102, 0.02);
    pointer-events: none;
    z-index: 9999;
    animation: flicker 0.1s infinite;
}

@keyframes flicker {
    0% { opacity: 0.97; }
    50% { opacity: 1; }
    100% { opacity: 0.98; }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.norad-header {
    background: linear-gradient(180deg, var(--steel-blue-dark) 0%, var(--steel-blue) 50%, var(--steel100%);
    border-blue-dark) : 2px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 20px;
    overflow: hidden;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.title {
    font-size: 2rem;
    font-weight: normal;
    letter-spacing: 4px;
    margin: 0;
    color: var(--steel-blue-light);
    text-shadow: 0 0 8px var(--steel-blue), 0 0 16px var(--steel-blue-dark);
}

.glow {
    animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
    from { text-shadow: 0 0 8px var(--steel-blue), 0 0 16px var(--steel-blue-dark); }
    to { text-shadow: 0 0 12px var(--steel-blue), 0 0 24px var(--steel-blue), 0 0 32px var(--steel-blue-light); }
}

.version {
    color: var(--text-primary);
    font-size: 1.2rem;
    text-shadow: 0 0 4px var(--phosphor-green-dim);
}

.status-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(0, 0, 0, 0.3);
    font-size: 1.1rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--phosphor-green-dim);
    box-shadow: 0 0 6px var(--phosphor-green);
    animation: pulse 2s ease-in-out infinite;
}

.status-indicator.online {
    background: var(--phosphor-green);
    box-shadow: 0 0 8px var(--phosphor-green);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.status-text {
    color: var(--phosphor-green);
    text-shadow: 0 0 4px var(--phosphor-green-dim);
}

.spacer {
    flex: 1;
}

.clock {
    font-size: 1.1rem;
    color: var(--text-dim);
    text-shadow: 0 0 2px var(--text-dim);
}

.main-content {
    min-height: 400px;
}

.terminal-message {
    font-size: 1.2rem;
    color: var(--text-primary);
    min-height: 30px;
    margin-bottom: 20px;
    text-shadow: 0 0 4px var(--phosphor-green-dim);
}

.terminal-message::after {
    content: "_";
    animation: blink 1s step-end infinite;
}

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

.systems-section {
    margin-bottom: 30px;
}

.section-title {
    font-size: 1.4rem;
    font-weight: normal;
    color: var(--text-secondary);
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-shadow: 0 0 4px var(--steel-blue-light);
}

.blink {
    animation: sectionBlink 2s ease-in-out infinite;
}

@keyframes sectionBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.system-card {
    display: block;
    background: var(--darker-bg);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 0;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.system-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(51, 255, 102, 0.05),
        transparent
    );
    transition: left 0.5s ease;
}

.system-card:hover::before {
    left: 100%;
}

.system-card:hover {
    border-color: var(--phosphor-green);
    box-shadow: 0 0 20px rgba(51, 255, 102, 0.2), inset 0 0 20px rgba(51, 255, 102, 0.05);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(74, 123, 168, 0.1);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    text-shadow: 0 0 6px var(--phosphor-green-dim);
    letter-spacing: 2px;
}

.card-arrow {
    font-size: 1.2rem;
    color: var(--phosphor-green);
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.system-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

.card-body {
    padding: 15px 20px;
}

.card-desc {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.card-subdesc {
    font-size: 0.95rem;
    color: var(--text-dim);
}

.info-section {
    margin-bottom: 20px;
}

.info-panel {
    background: var(--darker-bg);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 15px 20px;
}

.info-title {
    font-size: 1.1rem;
    font-weight: normal;
    color: var(--text-secondary);
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.info-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-row {
    display: flex;
    gap: 15px;
    font-size: 1.1rem;
}

.info-label {
    color: var(--text-dim);
    min-width: 120px;
}

.info-value {
    color: var(--phosphor-green);
    text-shadow: 0 0 4px var(--phosphor-green-dim);
}

.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 15px;
    background: rgba(74, 123, 168, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    color: var(--text-dim);
    margin-top: 20px;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.clock.blue {
    color: var(--steel-blue);
    text-shadow: 0 0 4px var(--steel-blue-dark);
}

#styleToggle {
    background: transparent;
    border: 1px solid var(--text-dim);
    color: var(--text-dim);
    font-family: 'VT323', monospace;
    font-size: 0.65rem;
    padding: 1px 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: none;
    opacity: 0.7;
}

#styleToggle:hover {
    background: rgba(74, 123, 168, 0.15);
    box-shadow: 0 0 4px var(--steel-blue);
    opacity: 1;
    color: var(--steel-blue);
    border-color: var(--steel-blue);
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

#styleToggle {
    background: transparent;
    border: 1px solid var(--text-dim);
    color: var(--text-dim);
    font-family: 'VT323', monospace;
    font-size: 0.65rem;
    padding: 1px 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: none;
    opacity: 0.7;
}

#styleToggle:hover {
    background: rgba(74, 123, 168, 0.15);
    box-shadow: 0 0 4px var(--steel-blue);
    opacity: 1;
    color: var(--steel-blue);
    border-color: var(--steel-blue);
}

#styleToggle {
    background: transparent;
    border: 1px solid var(--steel-blue);
    color: var(--steel-blue);
    font-family: 'VT323', monospace;
    font-size: 0.8rem;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: none;
}

#styleToggle:hover {
    background: rgba(74, 123, 168, 0.15);
    box-shadow: 0 0 6px var(--steel-blue);
}

.footer-text {
    text-shadow: 0 0 2px var(--text-dim);
}

#styleToggle {
    background: transparent;
    border: 1px solid var(--steel-blue);
    color: var(--steel-blue);
    font-family: 'VT323', monospace;
    font-size: 0.8rem;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: none;
}

#styleToggle:hover {
    background: rgba(74, 123, 168, 0.15);
    box-shadow: 0 0 6px var(--steel-blue);
}

@media (max-width: 600px) {
    .title {
        font-size: 1.5rem;
    }

    .header-content {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .status-bar {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .info-row {
        flex-direction: column;
        gap: 2px;
    }
}