@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=Space+Mono&display=swap');

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    --accent-pink: #ec4899;
    --accent-orange: #f97316;
    --accent-green: #10b981;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #1a1a3e 50%, #0a0e1a 100%);
    --gradient-card: linear-gradient(145deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.05));
    --border-color: rgba(148, 163, 184, 0.1);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

.star-field {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.star-field .star {
    position: absolute;
    width: 2px; height: 2px;
    background: white;
    border-radius: 50%;
    animation: twinkle var(--dur, 3s) ease-in-out infinite alternate;
}

@keyframes twinkle {
    0% { opacity: 0.2; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1.2); }
}

.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 0 2rem;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-brand .logo {
    font-size: 1.8rem;
}

.nav-brand h1 {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%; transform: translateX(-50%);
    width: 30px; height: 2px;
    background: var(--accent-blue);
    border-radius: 2px;
}

.nav-links .logout-btn {
    color: var(--accent-pink);
    border: 1px solid rgba(236, 72, 153, 0.3);
}

.nav-links .logout-btn:hover {
    background: rgba(236, 72, 153, 0.1);
    border-color: var(--accent-pink);
}

.main-content {
    padding-top: 90px;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.page-header h2 {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #e2e8f0, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header .subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    padding: 1px;
    background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(139,92,246,0.1), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(59, 130, 246, 0.3);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.card:hover .card-img {
    transform: scale(1.05);
}

.card-img-wrapper {
    overflow: hidden;
    position: relative;
}

.card-img-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 60px;
    background: linear-gradient(transparent, var(--bg-card));
}

.card-body {
    padding: 1.25rem;
}

.card-body h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card-body p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-outline {
    background: transparent;
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
}

.btn-outline:hover {
    background: rgba(59, 130, 246, 0.1);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-completed {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.badge-category {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.detail-hero {
    position: relative;
    height: 350px;
    overflow: hidden;
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

.detail-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--bg-primary), transparent 60%);
}

.detail-hero .hero-title {
    position: absolute;
    bottom: 2rem; left: 2rem;
    z-index: 2;
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 800;
}

.detail-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.detail-description {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.detail-description h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
}

.detail-description p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

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

.stat-card {
    background: var(--bg-card);
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: var(--shadow-glow);
}

.stat-card .stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.stat-card .stat-value {
    font-family: 'Space Mono', monospace;
    font-size: 1.1rem;
    color: var(--accent-cyan);
    font-weight: 600;
}

.fun-fact {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(236, 72, 153, 0.05));
    border: 1px solid rgba(249, 115, 22, 0.2);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 1rem;
}

.fun-fact h4 {
    font-family: 'Orbitron', monospace;
    color: var(--accent-orange);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.fun-fact p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.news-card .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.news-card .card-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: 'Space Mono', monospace;
}

.news-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    border-radius: var(--radius);
    transition: var(--transition);
}

.news-card-link:hover .news-card {
    border-color: rgba(59, 130, 246, 0.4);
}

.news-card .card-source {
    font-size: 0.8rem;
    color: var(--accent-blue);
    font-weight: 500;
    transition: var(--transition);
}

.news-card-link:hover .card-source {
    color: var(--accent-cyan);
    text-decoration: underline;
}

.news-updated {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: 'Space Mono', monospace;
    margin-top: 0.5rem;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.hero {
    text-align: center;
    padding: 4rem 0 3rem;
    position: relative;
}

.hero h2 {
    font-family: 'Orbitron', monospace;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #ec4899, #f97316);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.section-header h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.section-header a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.section-header a:hover {
    color: var(--accent-purple);
}

.planet-scroll {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding: 1rem 0 1.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-blue) transparent;
}

.planet-scroll::-webkit-scrollbar { height: 4px; }
.planet-scroll::-webkit-scrollbar-track { background: transparent; }
.planet-scroll::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 4px; }

.planet-mini-card {
    flex: 0 0 140px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    padding: 1rem;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.planet-mini-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.planet-mini-card img {
    width: 70px; height: 70px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 0.5rem;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.planet-mini-card:hover img {
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.planet-mini-card span {
    font-size: 0.85rem;
    font-weight: 600;
}

.flash-messages {
    position: fixed;
    top: 80px; right: 2rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.flash-msg {
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    animation: slideInRight 0.4s ease;
    backdrop-filter: blur(10px);
}

.flash-msg.error {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.flash-msg.success {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

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

.related-section {
    margin: 2rem 0 3rem;
}

.related-section h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    margin-bottom: 1.25rem;
    color: var(--accent-cyan);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--accent-blue);
}

.footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer span {
    color: var(--accent-purple);
    font-family: 'Orbitron', monospace;
    font-weight: 600;
}

@media (max-width: 768px) {
    .navbar { padding: 0 1rem; }
    .nav-brand h1 { font-size: 1rem; }
    .nav-links { gap: 4px; }
    .nav-links a { padding: 6px 12px; font-size: 0.8rem; }
    .hero h2 { font-size: 2rem; }
    .detail-content { grid-template-columns: 1fr; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .page-header h2 { font-size: 1.8rem; }
    .container { padding: 0 1rem; }
}

@media (max-width: 480px) {
    .nav-links a span.nav-text { display: none; }
    .hero h2 { font-size: 1.5rem; }
}