:root {
    /* Original INTI Colors */
    --bg-primary: #fefefe;
    --bg-secondary: #f8f9fb;
    --text-primary: #1a1d29;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --sidebar-bg: #ffffff;
    --sidebar-border: rgba(226, 232, 240, 0.8);
    --accent-primary: #6366f1;
    --accent-secondary: #f59e0b;
    --accent-tertiary: #10b981;
    --panel-bg: #ffffff;
    --panel-border: rgba(226, 232, 240, 0.6);
    
    /* Astro Warm Colors */
    --color-cream: #F9F7F3;
    --color-dark-brown: #2E2B28;
    --color-medium-brown: #5A4E42;
    --color-gold: #B8A768;
    --color-green: #356859;
    --color-light-green: #2d5449;
    
    /* Combined Variables */
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --blur-backdrop: blur(20px);
}

[data-theme="dark"] {
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --sidebar-bg: rgba(26, 31, 46, 0.95);
    --sidebar-border: rgba(45, 55, 72, 0.8);
    --panel-bg: rgba(26, 31, 46, 0.8);
    --panel-border: rgba(45, 55, 72, 0.6);
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    
    /* Dark theme for Astro colors */
    --color-cream: #1a1814;
    --color-dark-brown: #e8e5e1;
    --color-medium-brown: #c4b8ac;
    --color-gold: #d4c985;
    --color-green: #4a7b6a;
    --color-light-green: #5a8b7a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--bg-primary) 50%, var(--color-cream) 100%);
    color: var(--text-primary);
    line-height: 1.7;
    transition: var(--transition);
    overflow-x: hidden;
    position: relative;
}

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(184, 167, 104, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(53, 104, 89, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% { transform: translateY(0); }
    40%, 43% { transform: translateY(-10px); }
    70% { transform: translateY(-5px); }
    90% { transform: translateY(-2px); }
}

@keyframes contentSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Enhanced Sidebar */
.sidebar {
    width: 320px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--blur-backdrop);
    border-right: 1px solid var(--sidebar-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
    overflow: hidden;
    box-shadow: var(--shadow-large);
}

[data-theme="dark"] .sidebar {
    background: rgba(26, 31, 46, 0.98);
}

.sidebar-header {
    padding: 2.5rem 2rem;
    border-bottom: 1px solid var(--sidebar-border);
    background: linear-gradient(135deg, var(--color-green) 0%, var(--color-gold) 50%, var(--accent-primary) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.sidebar-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='m36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    opacity: 0.1;
    z-index: -1;
}

.app-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: fadeInUp 0.8s ease-out;
}

.app-title::before {
    content: '🧠';
    font-size: 2.5rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    animation: bounce 3s ease-in-out infinite;
}

.app-subtitle {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.025em;
    font-style: italic;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.sidebar-controls {
    padding: 1.5rem 2rem;
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--sidebar-border);
    background: rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] .sidebar-controls {
    background: rgba(0, 0, 0, 0.2);
}

.search-container {
    flex: 1;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border: 2px solid var(--panel-border);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 4px rgba(184, 167, 104, 0.1), var(--shadow-medium);
    background: white;
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: var(--transition);
}

.search-input:focus + .search-icon {
    color: var(--color-gold);
}

.theme-toggle {
    background: linear-gradient(135deg, var(--color-medium-brown), var(--color-green));
    border: none;
    border-radius: var(--border-radius);
    padding: 0.875rem;
    cursor: pointer;
    color: white;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    box-shadow: var(--shadow-medium);
    font-size: 1.2rem;
}

.theme-toggle:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-large);
    background: linear-gradient(135deg, var(--color-green), var(--color-gold));
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.catalog-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.catalog-item {
    transition: var(--transition);
}

.catalog-link {
    display: block;
    padding: 1.25rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

[data-theme="dark"] .catalog-link {
    background: rgba(255, 255, 255, 0.05);
}

.catalog-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.catalog-link:hover::before {
    left: 100%;
}

.catalog-link:hover {
    background: linear-gradient(135deg, var(--color-green), var(--color-gold));
    color: white;
    transform: translateX(8px) translateY(-2px);
    box-shadow: var(--shadow-large);
    border-color: var(--color-gold);
}

.catalog-link.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--color-green));
    color: white;
    box-shadow: var(--shadow-medium);
    transform: translateX(4px);
}

/* Mobile Sidebar Toggle */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 1000;
    background: linear-gradient(135deg, var(--color-green), var(--color-gold));
    color: white;
    border: none;
    border-radius: 50%;
    width: 3.5rem;
    height: 3.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-large);
    transition: var(--transition);
    font-size: 1.2rem;
}

.sidebar-toggle:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Enhanced Main Content */
.main-content {
    flex: 1;
    margin-left: 320px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: var(--transition);
    position: relative;
}

.content-container {
    flex: 1;
    padding: 2.5rem;
    max-width: 950px;
    margin: 0 auto;
    width: 100%;
    animation: fadeInUp 0.8s ease-out;
}

/* Enhanced Metadata Panel */
.metadata-panel {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: var(--blur-backdrop);
    border: 1px solid var(--panel-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .metadata-panel {
    background: rgba(26, 31, 46, 0.9);
}

.metadata-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-green), var(--color-gold), var(--accent-primary));
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.metadata-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.metadata-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--panel-border);
    transition: var(--transition);
}

.metadata-table tr:hover {
    background: rgba(184, 167, 104, 0.05);
}

.metadata-table td:first-child {
    background: linear-gradient(135deg, var(--bg-secondary), rgba(184, 167, 104, 0.1));
    font-weight: 600;
    color: var(--color-green);
    width: 160px;
    border-right: 1px solid var(--panel-border);
}

/* Enhanced Content Panel */
.content-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--blur-backdrop);
    border: 1px solid var(--panel-border);
    border-radius: var(--border-radius);
    padding: 3.5rem;
    box-shadow: var(--shadow-medium);
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 1.125rem;
    line-height: 1.8;
    animation: contentSlideIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .content-panel {
    background: rgba(26, 31, 46, 0.95);
}

.content-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--color-green), var(--color-gold), var(--accent-primary), var(--accent-tertiary));
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.content-panel h1, .content-panel h2, .content-panel h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    margin: 2.5rem 0 1.5rem 0;
    position: relative;
}

.content-panel h1 {
    font-size: 2.75rem;
    margin-top: 0;
    background: linear-gradient(135deg, var(--color-green), var(--color-gold), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.content-panel h2 {
    font-size: 2.125rem;
    color: var(--color-green);
    border-bottom: 3px solid var(--color-gold);
    padding-bottom: 0.75rem;
    margin-bottom: 1.5rem;
}

.content-panel h3 {
    font-size: 1.75rem;
    color: var(--color-medium-brown);
}

.content-panel p {
    margin-bottom: 1.75rem;
    color: var(--text-secondary);
}

/* Welcome Section Enhancement */
.welcome-section {
    animation: contentSlideIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.welcome-hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(249, 247, 243, 0.9), rgba(255, 255, 255, 0.95));
    border-radius: var(--border-radius);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-large);
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--blur-backdrop);
}

[data-theme="dark"] .welcome-hero {
    background: linear-gradient(135deg, rgba(26, 24, 20, 0.9), rgba(26, 31, 46, 0.95));
}

.welcome-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(53, 104, 89, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(184, 167, 104, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 15s ease-in-out infinite;
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

.welcome-title {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--color-green), var(--color-gold), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.welcome-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

/* Enhanced INTI Cards Grid */
.inti-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    width: 100%;
}

.inti-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: var(--blur-backdrop);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    min-height: 220px;
    transform: translateZ(0);
    animation: fadeInUp 0.6s ease-out;
}

[data-theme="dark"] .inti-card {
    background: rgba(26, 31, 46, 0.9);
}

.inti-card:nth-child(even) {
    animation-delay: 0.1s;
}

.inti-card:nth-child(3n) {
    animation-delay: 0.2s;
}

.inti-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--color-green), var(--color-gold), var(--accent-primary));
    opacity: 0;
    transition: var(--transition);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.inti-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition);
}

.inti-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-large);
    border-color: var(--color-gold);
    background: rgba(255, 255, 255, 0.98);
}

[data-theme="dark"] .inti-card:hover {
    background: rgba(26, 31, 46, 0.98);
}

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

.inti-card:hover::after {
    left: 100%;
}

.inti-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.inti-card-icon {
    width: 3.5rem;
    height: 3.5rem;
    background: linear-gradient(135deg, var(--color-green), var(--color-gold));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
    font-family: 'Playfair Display', serif;
}

.inti-card:hover .inti-card-icon {
    transform: rotate(360deg) scale(1.1);
    box-shadow: var(--shadow-large);
}

.inti-card-meta {
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.3;
}

.inti-card-type {
    display: block;
    font-weight: 700;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: 'Inter', sans-serif;
}

.inti-card-id {
    display: block;
    margin-top: 0.25rem;
    font-family: 'Inter', monospace;
}

.inti-card-content {
    margin-bottom: 2rem;
}

.inti-card-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
    transition: var(--transition);
}

.inti-card:hover .inti-card-title {
    color: var(--color-green);
}

.inti-card-excerpt {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    font-style: italic;
    font-family: 'Inter', sans-serif;
}

.inti-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid var(--panel-border);
    margin-top: auto;
}

.inti-card-link {
    color: var(--color-green);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.inti-card-link::after {
    content: '→';
    transition: var(--transition);
}

.inti-card:hover .inti-card-link {
    color: var(--color-gold);
    transform: translateX(8px);
}

.inti-card:hover .inti-card-link::after {
    transform: translateX(4px);
}

/* Enhanced Navigation */
.navigation {
    margin-top: 4rem;
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
}

.nav-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2rem;
    background: linear-gradient(135deg, var(--color-green), var(--color-gold));
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    position: relative;
    overflow: hidden;
}

.nav-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.nav-button:hover::before {
    left: 100%;
}

.nav-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-large);
    background: linear-gradient(135deg, var(--color-gold), var(--accent-primary));
}

.nav-button.prev::before {
    content: '←';
    font-size: 1.25rem;
}

.nav-button.next::after {
    content: '→';
    font-size: 1.25rem;
}

/* Enhanced Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        width: 280px;
    }
    
    .main-content {
        margin-left: 280px;
    }
    
    .content-container {
        padding: 2rem 1.5rem;
    }
    
    .content-panel {
        padding: 2.5rem;
    }

    .inti-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 100%;
        max-width: 320px;
        box-shadow: none;
    }
    
    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-large);
    }
    
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .content-container {
        padding: 1.5rem;
        padding-top: 6rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .content-panel {
        padding: 2rem;
        font-size: 1rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .content-panel h1 {
        font-size: 2.25rem;
    }
    
    .content-panel h2 {
        font-size: 1.75rem;
    }

    .welcome-hero {
        padding: 3rem 1.5rem;
        margin-bottom: 2rem;
    }

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

    .welcome-subtitle {
        font-size: 1.125rem;
    }

    .inti-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        width: 100%;
        max-width: 100%;
        padding: 0;
        margin: 1.5rem 0;
    }

    .inti-card {
        padding: 1.5rem;
        margin-bottom: 0;
        width: 100%;
        max-width: 100%;
        min-height: 200px;
    }

    .inti-card-header {
        flex-direction: row;
        gap: 1rem;
        align-items: flex-start;
    }

    .inti-card-icon {
        width: 3rem;
        height: 3rem;
        font-size: 1.125rem;
    }
    
    .navigation {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-button {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .welcome-hero {
        padding: 2rem 1rem;
    }

    .welcome-title {
        font-size: 2rem;
    }

    .welcome-icon {
        font-size: 3rem;
    }
    
    .inti-card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
        text-align: center;
    }
    
    .inti-card-meta {
        text-align: center;
    }

    .app-title {
        font-size: 1.875rem;
    }

    .sidebar-header {
        padding: 2rem 1.5rem;
    }
}

/* Overlay for mobile */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 50;
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.overlay.show {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

/* Enhanced Scrollbar Styling */
.sidebar-content::-webkit-scrollbar {
    width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--color-green), var(--color-gold));
    border-radius: 3px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--color-gold), var(--accent-primary));
}

/* Additional Interactive Elements */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Utility Classes from Astro CSS */
.font-playfair {
    font-family: 'Playfair Display', serif;
}

.text-gold {
    color: var(--color-gold);
}

.text-medium-brown {
    color: var(--color-medium-brown);
}

.text-green {
    color: var(--color-green);
}

.animate-bounce {
    animation: bounce 2s infinite;
}

.transition-all {
    transition: all 0.3s ease;
}

.cursor-pointer {
    cursor: pointer;
}

/* Loading Animation */
.loading-shimmer {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Focus Styles for Accessibility */
.catalog-link:focus,
.search-input:focus,
.theme-toggle:focus,
.nav-button:focus {
    outline: 3px solid var(--color-gold);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .sidebar, .sidebar-toggle, .theme-toggle, .navigation {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-container {
        padding: 1rem;
    }
    
    * {
        color: black !important;
        background: white !important;
    }
}