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

:root,
body[data-theme="dark"] {
    --primary: #00d9ff;
    --secondary: #ffd93d;
    --accent: #ff006e;
    --accent-light: #00ffff;
    --sun-primary: #ffd93d;
    --sun-secondary: #ffaa00;
    --dark: #0a0e27;
    --darker: #050a1a;
    --light: #f0f0f0;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --primary-glow: rgba(0, 217, 255, 0.1);
    --gradient-bg: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0f1a2e 100%);
    --header-bg: linear-gradient(180deg, rgba(10, 14, 39, 0.95) 0%, rgba(10, 14, 39, 0.7) 100%);
    --canvas-bg: linear-gradient(135deg, rgba(5, 10, 26, 0.8) 0%, rgba(10, 14, 39, 0.8) 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body[data-theme="light"] {
    --primary: #0088cc;
    --secondary: #ff9500;
    --accent: #e90052;
    --accent-light: #00b3ff;
    --sun-primary: #ffa500;
    --sun-secondary: #ffb84d;
    --dark: #f5f5f5;
    --darker: #ffffff;
    --light: #1a1a1a;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --glass-bg: rgba(0, 0, 0, 0.03);
    --glass-border: rgba(0, 0, 0, 0.1);
    --primary-glow: rgba(0, 136, 204, 0.1);
    --gradient-bg: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 50%, #f0f0f0 100%);
    --header-bg: linear-gradient(180deg, rgba(245, 245, 245, 0.95) 0%, rgba(240, 240, 240, 0.9) 100%);
    --canvas-bg: linear-gradient(135deg, rgba(240, 240, 240, 0.9) 0%, rgba(245, 245, 245, 0.9) 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background: var(--gradient-bg);
    color: var(--text-primary);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    transition: background 0.5s ease, color 0.5s ease;
}

body::before {
    content: '';
    position: fixed;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.08) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    animation: moveGrid 20s linear infinite;
    z-index: 1;
    transition: background 0.5s ease;
}

body[data-theme="light"]::before {
    background: radial-gradient(circle, rgba(0, 136, 204, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
}

@keyframes moveGrid {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    transition: background 0.5s ease;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 2.5rem;
}

.logo h1 {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
}

.nav-btn:hover,
.nav-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

body[data-theme="light"] .nav-btn:hover,
body[data-theme="light"] .nav-btn.active {
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.5);
}

.theme-toggle {
    display: flex;
    align-items: center;
}

.theme-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--secondary);
    padding: 0.7rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.theme-btn:hover {
    background: var(--secondary);
    color: var(--darker);
    box-shadow: 0 0 20px rgba(255, 217, 61, 0.5);
    transform: scale(1.1);
}

body[data-theme="light"] .theme-btn {
    color: var(--primary);
}

body[data-theme="light"] .theme-btn:hover {
    background: var(--primary);
    color: white;
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.5);
}

/* Hero Section */
.hero {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 3rem;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
    z-index: 0;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(20px); }
}

#heroCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.hero-content {
    position: relative;
    text-align: center;
    z-index: 3;
    padding: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: slideUp 0.8s ease-out 0.2s both;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    animation: slideUp 0.8s ease-out 0.4s both;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Search Section */
.search-section {
    max-width: 1400px;
    margin: -2rem auto 3rem;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

.search-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 0.8rem 2.5rem 0.8rem 1.2rem;
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

body[data-theme="light"] .search-input {
    background: rgba(0, 0, 0, 0.03);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(0, 217, 255, 0.05);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

body[data-theme="light"] .search-input:focus {
    background: rgba(0, 136, 204, 0.05);
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.3);
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}

.filter-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.5);
}

body[data-theme="light"] .filter-btn {
    color: var(--text-primary);
}

body[data-theme="light"] .filter-btn:hover,
body[data-theme="light"] .filter-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 0 15px rgba(0, 136, 204, 0.5);
}

.sort-select {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: var(--transition);
}

body[data-theme="light"] .sort-select {
    background: rgba(0, 0, 0, 0.05);
    border: 2px solid rgba(0, 136, 204, 0.2);
}

.sort-select:hover {
    border-color: var(--primary);
}

body[data-theme="light"] .sort-select:hover {
    border-color: var(--primary);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

body[data-theme="light"] .sort-select:focus {
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.3);
}

.sort-select option {
    background: var(--dark);
    color: var(--text-primary);
    padding: 0.8rem;
}

body[data-theme="light"] .sort-select option {
    background: #ffffff;
    color: #1a1a1a;
}

/* Content Wrapper */
.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.section-content {
    display: none;
    animation: fadeIn 0.6s ease-out;
}

.section-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.section-title {
    font-size: 2rem;
    margin: 3rem 0 2rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Sun Info Card */
.sun-info-card {
    margin-bottom: 3rem;
    padding: 2rem;
}

.sun-header {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: center;
}

.sun-visual {
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--sun-primary) 0%, var(--sun-secondary) 100%);
    border-radius: 50%;
    box-shadow: 0 0 60px var(--sun-primary), 0 0 120px rgba(255, 217, 61, 0.3);
    animation: pulse 3s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 60px #ffd93d, 0 0 120px rgba(255, 217, 61, 0.3); }
    50% { box-shadow: 0 0 80px #ffd93d, 0 0 160px rgba(255, 217, 61, 0.5); }
}

.sun-content h2 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.sun-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

.sun-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.sun-stat {
    background: rgba(255, 217, 61, 0.05);
    border: 1px solid rgba(255, 217, 61, 0.2);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.sun-stat:hover {
    transform: translateY(-5px);
    border-color: var(--secondary);
    box-shadow: 0 10px 30px rgba(255, 217, 61, 0.2);
}

.sun-stat .stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 0.5rem;
}

.sun-stat .stat-value {
    color: var(--secondary);
    font-size: 1.3rem;
    font-weight: bold;
}

/* Planets Grid */
.planets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.planet-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    animation: fadeIn 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.planet-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

.planet-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 217, 255, 0.3), inset 0 1px 0 rgba(0, 217, 255, 0.2);
}

.planet-card:hover::before {
    opacity: 1;
}

.planet-visual {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    box-shadow: 0 0 30px currentColor;
    transition: var(--transition);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.planet-card:hover .planet-visual {
    animation: rotate 10s linear infinite;
    transform: scale(1.1);
}

.planet-name {
    font-size: 1.5rem;
    margin: 1rem 0 0.5rem;
    color: var(--primary);
}

.planet-type {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.planet-distance {
    background: rgba(0, 217, 255, 0.1);
    padding: 0.8rem;
    border-radius: 8px;
    margin: 1rem 0;
    color: var(--primary);
    font-size: 0.9rem;
}

body[data-theme="light"] .planet-distance {
    background: rgba(0, 136, 204, 0.1);
    color: var(--primary);
}

.planet-distance span {
    font-weight: bold;
    font-size: 1.1rem;
}

.view-btn {
    background: linear-gradient(135deg, var(--primary), var(--accent-light));
    border: none;
    color: var(--darker);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.95rem;
    transition: var(--transition);
    margin-top: 1rem;
}

.view-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 217, 255, 0.4);
}

/* Moons Grid */
.moons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.moon-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.moon-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 15px 30px rgba(0, 217, 255, 0.2);
}

.moon-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.moon-name {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.moon-parent {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.moon-details {
    background: rgba(0, 217, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

body[data-theme="light"] .moon-details {
    background: rgba(0, 136, 204, 0.05);
}

/* Regions Container */
.regions-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.region-card {
    padding: 2rem;
    transition: var(--transition);
}

.region-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 217, 255, 0.2);
}

.region-name {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.region-info {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.region-info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem;
    background: rgba(0, 217, 255, 0.05);
    border-radius: 8px;
    font-size: 0.9rem;
}

.region-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.region-value {
    color: var(--primary);
    font-weight: bold;
}

/* Dwarf Planets Grid */
.dwarf-planets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.dwarf-planet-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 217, 61, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.dwarf-planet-card:hover {
    transform: translateY(-8px);
    border-color: var(--secondary);
    box-shadow: 0 15px 30px rgba(255, 217, 61, 0.2);
}

.dwarf-name {
    color: var(--secondary);
    font-size: 1.2rem;
    margin: 0.5rem 0;
}

.dwarf-type {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* 3D Visualization Section */
.visualization-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    height: 600px;
}

#canvas3D {
    background: var(--canvas-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    width: 100%;
    height: 100%;
}

.visualization-controls {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    height: fit-content;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.control-group select,
.control-group input[type="range"] {
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

body[data-theme="light"] .control-group select,
body[data-theme="light"] .control-group input[type="range"] {
    background: rgba(0, 0, 0, 0.05);
    border: 2px solid rgba(0, 136, 204, 0.2);
}

.control-group select:hover {
    border-color: var(--primary);
}

.control-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.3);
}

body[data-theme="light"] .control-group select:focus {
    box-shadow: 0 0 15px rgba(0, 136, 204, 0.3);
}

.control-group select option {
    background: var(--dark);
    color: var(--text-primary);
    padding: 0.8rem;
}

body[data-theme="light"] .control-group select option {
    background: #ffffff;
    color: #1a1a1a;
}

.control-group select option:checked {
    background: var(--primary);
    color: var(--darker);
}

body[data-theme="light"] .control-group select option:checked {
    background: var(--primary);
    color: #ffffff;
}

/* General Select Styling */
select {
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

body[data-theme="light"] select {
    background: rgba(0, 0, 0, 0.05);
    border: 2px solid rgba(0, 136, 204, 0.2);
}

select:hover {
    border-color: var(--primary);
}

select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.3);
}

body[data-theme="light"] select:focus {
    box-shadow: 0 0 15px rgba(0, 136, 204, 0.3);
}

select option {
    background: var(--dark);
    color: var(--text-primary);
    padding: 0.8rem;
}

body[data-theme="light"] select option {
    background: #ffffff;
    color: #1a1a1a;
}

select option:checked {
    background: var(--primary);
    color: var(--darker);
}

body[data-theme="light"] select option:checked {
    background: var(--primary);
    color: #ffffff;
}

.control-btn {
    background: linear-gradient(135deg, var(--primary), var(--accent-light));
    border: none;
    color: var(--darker);
    padding: 0.8rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition);
}

.control-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 217, 255, 0.4);
}

.planet-info-panel {
    padding: 1.5rem;
    overflow-y: auto;
    height: 100%;
}

.planet-info-panel h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

#viewPlanetInfo {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Missions Section */
.missions-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.mission-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition);
}

.mission-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 15px 30px rgba(255, 0, 110, 0.2);
}

.mission-year {
    color: var(--secondary);
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.mission-name {
    color: var(--primary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.mission-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.mission-status {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(0, 217, 255, 0.2);
    border: 1px solid var(--primary);
    border-radius: 6px;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
}

.mission-status.active {
    background: rgba(255, 0, 110, 0.2);
    border-color: var(--accent);
    color: var(--accent);
}

.mission-status.future {
    background: rgba(255, 217, 61, 0.2);
    border-color: var(--secondary);
    color: var(--secondary);
}

/* Comparison Controls */
.comparison-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 2rem;
}

.comparison-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.comparison-item {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
}

.comparison-planet-name {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-weight: bold;
}

.comparison-data {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.comparison-row {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem;
    background: rgba(0, 217, 255, 0.05);
    border-radius: 6px;
    font-size: 0.9rem;
}

.comparison-label {
    color: var(--text-secondary);
}

.comparison-value {
    color: var(--primary);
    font-weight: bold;
}

/* Timeline */
.timeline-container {
    position: relative;
    padding: 2rem 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-left: 2rem;
    border-left: 2px solid var(--primary);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -11px;
    top: 5px;
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, var(--primary), var(--accent-light));
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary);
}

.timeline-date {
    color: var(--secondary);
    font-weight: bold;
    font-size: 1.1rem;
}

.timeline-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateX(10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.2);
}

.timeline-title {
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.timeline-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 1000;
    animation: fadeIn 0.3s ease-out;
    overflow-y: auto;
}

.modal-content {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    margin: 5% auto;
    padding: 2rem;
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 2rem;
    color: var(--primary);
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--primary);
}

.modal-body {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
}

.planet-visual-large {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    box-shadow: 0 0 50px currentColor;
}

.modal-info h3 {
    color: var(--primary);
    font-size: 1.3rem;
    margin: 1.5rem 0 1rem;
}

.detail-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.detail-item {
    background: rgba(0, 217, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
}

.detail-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.detail-value {
    display: block;
    color: var(--primary);
    font-size: 1rem;
    font-weight: bold;
}

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2000;
    display: none;
    text-align: center;
}

.loading-spinner.active {
    display: block;
}

.spinner {
    border: 4px solid rgba(0, 217, 255, 0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

body[data-theme="light"] .spinner {
    border: 4px solid rgba(0, 136, 204, 0.2);
    border-top-color: var(--primary);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-spinner p {
    color: var(--primary);
    font-size: 1.1rem;
}

/* Particles Background */
.particles-background {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        width: 100%;
        justify-content: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .search-container {
        flex-direction: column;
    }

    .visualization-container {
        grid-template-columns: 1fr;
        height: auto;
    }

    .modal-body {
        grid-template-columns: 1fr;
    }

    .planets-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .hero-stats {
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .planets-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

    .nav-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .regions-container {
        grid-template-columns: 1fr;
    }

    .comparison-controls {
        grid-template-columns: 1fr;
    }

    .header-container {
        padding: 0 1rem;
    }

    .content-wrapper {
        padding: 0 1rem 2rem;
    }

    .search-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

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

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

    .dwarf-planets-grid {
        grid-template-columns: 1fr;
    }

    .filter-controls {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 0;
        padding-top: 2rem;
        border-left: none;
        border-top: 2px solid var(--primary);
    }

    .timeline-item::before {
        left: auto;
        top: -11px;
        bottom: auto;
    }

    .modal-content {
        width: 95%;
        margin: 20% auto;
        padding: 1rem;
    }

    .modal-header h2 {
        font-size: 1.5rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 217, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary), var(--accent-light));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-light), var(--primary));
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}