:root {
    --bg-color: #0d1117;
    --sidebar-bg: #161b22;
    --card-bg: #21262d;
    --accent-color: #58a6ff;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --border-color: #30363d;
    --sidebar-width: 250px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 2.5rem;
    letter-spacing: -0.5px;
}

.nav-group {
    margin-bottom: 2rem;
}

.nav-group h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

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

.nav-group li {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    transition: all var(--transition-speed);
    margin-bottom: 0.2rem;
}

.nav-group li i {
    font-size: 1.1rem;
    width: 20px;
}

.nav-group li:hover, .nav-group li.active {
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.nav-group li.active {
    color: var(--accent-color);
    font-weight: 600;
}

/* Main Content Styling */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding-bottom: 5rem;
}

/* Hero Section */
.hero-section {
    padding: 6rem 2rem 4rem;
    background: linear-gradient(to bottom, rgba(88, 166, 255, 0.05), transparent);
    text-align: center;
}

.search-container h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.search-container p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
}

.search-bar {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.search-bar:focus-within {
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

.search-bar i {
    padding: 0 1.2rem;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}

.search-bar input {
    flex: 1;
    background: transparent;
    border: none;
    color: white;
    font-size: 1rem;
    outline: none;
    padding: 0.8rem 0;
}

.search-bar button {
    background: var(--accent-color);
    border: none;
    color: var(--bg-color);
    padding: 0 1.8rem;
    border-radius: 25px;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s;
}

.search-bar button:hover {
    opacity: 0.9;
}

/* Gallery Section */
.gallery-section {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.filter-chips {
    display: flex;
    gap: 0.8rem;
}

.chip {
    padding: 0.5rem 1.2rem;
    background: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.chip:hover {
    border-color: var(--accent-color);
}

.chip.active {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    font-weight: 600;
}

/* Scene Grid */
.scene-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.scene-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
}

.scene-card:hover {
    transform: translateY(-8px);
}

.scene-image-container {
    height: 200px;
    overflow: hidden;
}

.scene-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.scene-info {
    padding: 1rem;
}

.scene-info h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.scene-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.fav-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.4rem;
    border-radius: 50%;
    color: white;
    backdrop-filter: blur(4px);
    transition: all 0.2s;
}

.fav-badge:hover {
    color: #ff4b2b;
    transform: scale(1.1);
}

/* Modal Styling */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.9);
    backdrop-filter: blur(8px);
}

.modal-content {
    background-color: var(--card-bg);
    margin: 5% auto;
    width: 80%;
    max-width: 1000px;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
}

.close-btn {
    position: absolute;
    right: 20px;
    top: 10px;
    color: var(--text-secondary);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1;
}

.modal-body {
    display: flex;
    flex-direction: column;
}

.modal-body img {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    background: black;
}

.modal-info {
    padding: 2rem;
}

.modal-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

.tag {
    background: var(--sidebar-bg);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--accent-color);
}

.fav-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.fav-btn:hover {
    background: rgba(255, 75, 43, 0.1);
    border-color: #ff4b2b;
    color: #ff4b2b;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    .main-content {
        margin-left: 0;
    }
    .hero-section h1 {
        font-size: 2rem;
    }
}