:root {
    --bg-dark: #0a0c10;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-glass: rgba(255, 255, 255, 0.05);
    --border-glass: rgba(255, 255, 255, 0.1);
    --accent: #ff9500;
    --accent-glow: rgba(255, 149, 0, 0.3);
    --text-primary: #f0f2f5;
    --text-secondary: #94a3b8;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --gradient-accent: linear-gradient(135deg, #ff9500 0%, #ff5e00 100%);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.8;
}

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

/* Navigation Styling */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 12, 16, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav-logo span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}

/* Header Styling */
.header {
    padding: 3.5rem 0;
    text-align: center;
    background: radial-gradient(circle at top, rgba(255, 149, 0, 0.1) 0%, transparent 70%);
}

.logo {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.logo span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.date-today {
    color: var(--text-secondary);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Layout Structure */
.layout-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 3rem;
    align-items: start;
    margin-top: 2rem;
}

.main-content {
    min-width: 0;
    /* Prevents grid blowout */
}

.sidebar {
    position: sticky;
    top: 80px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Highlights Section (Sidebar Version) */
.highlights {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 0;
}

.highlight-column h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.highlight-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: 1.5rem;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px -10px var(--accent-glow);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    flex-shrink: 0;
}

.card-snippet {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    opacity: 0.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    line-clamp: 3;
    overflow: hidden;
    flex-grow: 1;
}

.card-actions {
    margin-top: auto;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 1rem;
}

.card-link:hover {
    text-decoration: underline;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Chips */
.chip {
    padding: 0.6rem 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.chip:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    color: var(--text-primary);
}

.chip.active {
    background: var(--gradient-accent);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px -5px var(--accent);
}

/* Feed Section */
.daily-feed h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.news-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.feed-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    padding: 1.5rem 2rem;
    border-radius: 1rem;
    transition: background 0.2s ease;
}

.feed-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.feed-item-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.feed-item-title {
    font-size: 1.1rem;
    font-weight: 500;
}

.feed-item-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.feed-item-meta .tag, 
.feed-item-meta .date-tag,
.feed-item-meta .card-link {
    font-size: 0.75rem;
    margin: 0;
    padding: 0.25rem 0.75rem;
    height: auto;
    display: inline-flex;
    align-items: center;
}

.feed-item-meta .card-link {
    text-decoration: none;
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    background: var(--bg-glass);
    transition: all 0.2s ease;
}

.feed-item-meta .card-link:hover {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.1);
}


/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(15px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 900px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
}

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

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 1rem;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Utilities */
.icon {
    font-size: 1.4rem;
}

.footer {
    padding: 4rem 0;
    text-align: center;
    border-top: 1px solid var(--border-glass);
    margin-top: 4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.footer-nav a:hover {
    color: var(--accent);
}

.footer-mission {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-copyright {
    font-size: 0.8rem;
    opacity: 0.6;
    margin-top: 1rem;
}

/* Timeline Styles */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 1rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 2rem;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0.3;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 4rem;
}

.timeline-dot {
    position: absolute;
    left: 1.7rem;
    top: 1.5rem;
    width: 1rem;
    height: 1rem;
    background: var(--bg-glass);
    border: 2px solid var(--accent);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 10px var(--accent);
}

.timeline-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 1.5rem;
    padding: 1.5rem 2rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.timeline-card:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent);
}

.timeline-date {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.timeline-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Modal and Utility */
#backToTimeline {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Navigation Search Bar */
.nav-search {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    padding: 0.4rem 1rem;
    margin-left: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-search:focus-within {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(255, 149, 0, 0.15);
}

.search-icon {
    font-size: 0.85rem;
    margin-right: 0.6rem;
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.nav-search:focus-within .search-icon {
    opacity: 0.9;
    color: var(--accent);
}

#globalSearch {
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    width: 140px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#globalSearch:focus {
    width: 200px;
}

#globalSearch::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    grid-column: 1 / -1;
    width: 100%;
}

@media (max-width: 1024px) {
    .layout-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .sidebar {
        position: static;
    }
}

@media (max-width: 900px) {
    .nav-search {
        display: none;
    }
}

@media (max-width: 768px) {
    .highlights {
        grid-template-columns: 1fr;
    }

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

/* --- Back to Top Button --- */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--accent);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.back-to-top:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 0 20px var(--accent-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 1024px) {
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 3rem;
        height: 3rem;
    }
}