:root {
    --bg-color: #050b18;
    --navy-deep: #0a192f;
    --blue-accent: #64ffda;
    --blue-glow: rgba(100, 255, 218, 0.3);
    --text-main: #ccd6f6;
    --text-dim: #8892b0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --gold: #ffcc00;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.orbitron {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}

/* Background Stars */
#stars,
#stars2,
#stars3 {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: -1;
}

#stars {
    background: transparent url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/1231630/stars.png') repeat top center;
    animation: move-twink-back 200s linear infinite;
}

@keyframes move-twink-back {
    from {
        background-position: 0 0;
    }

    to {
        background-position: -10000px 5000px;
    }
}

/* Navigation */
.side-nav {
    position: fixed;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
}

.side-nav ul {
    list-style: none;
}

.side-nav li {
    margin: 10px 0;
}

.side-nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.7rem;
    text-transform: uppercase;
    writing-mode: vertical-rl;
    transition: 0.3s;
    font-family: 'Orbitron', sans-serif;
    padding: 5px 0;
    border-right: 2px solid transparent;
}

.side-nav a:hover,
.side-nav a.active {
    color: var(--blue-accent);
    text-shadow: 0 0 10px var(--blue-accent);
    border-right: 2px solid var(--blue-accent);
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

section {
    min-height: 100vh;
    padding: 100px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--blue-accent);
    text-shadow: 0 0 15px var(--blue-glow);
    border-left: 4px solid var(--blue-accent);
    padding-left: 20px;
}

/* Glass Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 30px;
    transition: 0.4s ease;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: var(--blue-accent);
    box-shadow: 0 0 20px var(--blue-glow);
}

/* Categories and Grids */
.category-title {
    margin: 40px 0 20px;
    font-size: 1.2rem;
    color: var(--blue-accent);
    display: flex;
    align-items: center;
    gap: 10px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* Hero Section Redesign */
.hero-container {
    max-width: 1000px;
    width: 100%;
    padding: 40px;
}

.hero-header {
    margin-bottom: 40px;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: left;
}

.hero-col {
    background: rgba(255, 255, 255, 0.03);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--glass-border);
}

.col-title {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 10px;
}

.col-title i {
    width: 20px;
}

.dash-item {
    margin-bottom: 20px;
    position: relative;
    cursor: help;
}

/* Tooltip Custom Logic */
.tooltip-trigger:hover::after {
    content: attr(data-info) "\A\A [ Exemple: " attr(data-example) " ]";
    white-space: pre-wrap;
    position: absolute;
    bottom: 110%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--blue-accent);
    color: var(--text-main);
    padding: 15px;
    border-radius: 10px;
    font-size: 0.8rem;
    width: 280px;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: fadeInSlide 0.3s ease forwards;
}

@keyframes fadeInSlide {
    from {
        opacity: 0;
        transform: translate(-50%, 10px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.tooltip-trigger:hover::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 8px;
    border-style: solid;
    border-color: var(--blue-accent) transparent transparent transparent;
    z-index: 1001;
    animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.tooltip-trigger:hover .label {
    color: var(--blue-accent);
}

.dash-item .label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 5px;
}

.value-small {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--blue-accent);
}

.project-badge {
    display: inline-block;
    margin-top: 30px;
    padding: 5px 15px;
    border: 1px solid var(--gold);
    color: var(--gold);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: bold;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.source-header {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: -40px;
    margin-bottom: 40px;
    font-style: italic;
}

/* Planets Slider */
.planets-slider {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 20px 40px;
    /* Increased padding for centering logic */
    scrollbar-width: none;
    /* Hide scrollbar for cleaner look */
    -ms-overflow-style: none;
    scroll-snap-type: x mandatory;
    /* Enable snap scroll */
}

.planets-slider::-webkit-scrollbar {
    display: none;
    /* Hide scrollbar for Chrome/Safari */
}

.planet-card {
    min-width: 140px;
    width: 140px;
    /* Consistent width */
    height: 140px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    cursor: pointer;
    transition: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    scroll-snap-align: center;
    /* Snap to center of original container or viewport */
}

.planet-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    transition: 0.5s;
}

.planet-card span {
    position: absolute;
    bottom: 10px;
    font-size: 0.7rem;
    font-family: 'Orbitron', sans-serif;
    background: rgba(0, 0, 0, 0.7);
    padding: 2px 8px;
    border-radius: 10px;
    opacity: 0;
    transition: 0.3s;
}

.planet-card:hover img,
.planet-card.active img {
    opacity: 1;
    transform: scale(1.1);
}

.planet-card:hover span,
.planet-card.active span {
    opacity: 1;
    bottom: 20px;
}

.planet-card:hover,
.planet-card.active {
    border-color: var(--blue-accent);
    box-shadow: 0 0 30px var(--blue-glow);
    transform: scale(1.1);
}

.planet-info-box {
    margin-top: 30px;
    text-align: center;
    border-top: 2px solid var(--blue-accent);
}

.moon-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px #fff);
}

.highlight {
    border: 2px solid var(--gold);
    box-shadow: 0 0 20px rgba(255, 204, 0, 0.2);
}

.highlight h3 {
    color: var(--gold);
}

/* Values and Source styles */
.value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--blue-accent);
    margin: 10px 0;
}

.source {
    font-size: 0.7rem;
    color: var(--text-dim);
    font-style: italic;
    margin-top: 10px;
}

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

/* Footer */
footer {
    text-align: center;
    padding: 50px 0;
    font-size: 0.8rem;
    color: var(--text-dim);
    border-top: 1px solid var(--glass-border);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .side-nav {
        display: none;
    }

    main {
        padding: 0 20px;
    }

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

    .hero-container {
        padding: 20px;
    }

    /* Planet Carousel Mobile Fix */
    .planets-slider {
        padding: 20px calc(50% - 70px);
        /* Center the snap-aligned items precisely */
    }

    .planet-card {
        min-width: 140px;
        width: 140px;
    }
}