/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: color 0.3s ease, background-color 0.3s ease;
}

/* Header */
header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav h1 a {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-controls button {
    background: var(--accent-color);
    color: var(--bg-primary);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: opacity 0.2s ease;
}

.nav-controls button:hover {
    opacity: 0.8;
}

/* Main content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.explorer-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    min-height: 80vh;
}

/* Controls panel */
.controls-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.input-tabs {
    display: flex;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.tab-btn.active,
.tab-btn:hover {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.tab-content {
    display: none;
}

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

.tab-content form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tab-content textarea,
.tab-content input {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
}

.tab-content textarea {
    resize: vertical;
    min-height: 120px;
}

.tab-content button {
    background: var(--accent-color);
    color: var(--bg-primary);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.tab-content button:hover {
    opacity: 0.8;
}

/* Viewer panel */
.viewer-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.breadcrumb-container {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
}

.json-viewer {
    padding: 1rem;
    overflow-y: auto;
}

/* Welcome message */
.welcome-message {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.welcome-message h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

/* Enhanced Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.9rem;
    padding: 0.5rem 0;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
}

.breadcrumb::-webkit-scrollbar {
    height: 4px;
}

.breadcrumb::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.breadcrumb::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.breadcrumb-item {
    color: var(--accent-color);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    transition: all 0.2s ease;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    min-width: fit-content;
    position: relative;
    overflow: hidden;
}

.breadcrumb-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--bg-hover), transparent);
    transition: left 0.5s ease;
}

.breadcrumb-item:hover::before {
    left: 100%;
}

.breadcrumb-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.breadcrumb-item.root {
    font-weight: 600;
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
}

.breadcrumb-item.root:hover {
    background: var(--accent-color);
    opacity: 0.9;
    color: var(--bg-primary);
}

.breadcrumb-separator {
    color: var(--text-secondary);
    font-size: 1.1em;
    margin: 0 0.2rem;
    transition: color 0.2s ease;
    user-select: none;
}

.breadcrumb-item:hover + .breadcrumb-separator,
.breadcrumb-separator:has(+ .breadcrumb-item:hover) {
    color: var(--accent-color);
}

/* Error styles */
.error-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 50vh;
}

.error-message {
    background: var(--bg-secondary);
    border: 1px solid var(--error-color);
    border-radius: 8px;
    padding: 2rem;
    max-width: 600px;
    text-align: center;
}

.error-message h2 {
    color: var(--error-color);
    margin-bottom: 1rem;
}

.error-details {
    margin: 1rem 0;
    text-align: left;
}

.error-details pre {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 0.8rem;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: opacity 0.2s ease;
}

.btn:hover {
    opacity: 0.8;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* Loading states */
.htmx-request {
    opacity: 0.6;
}

.htmx-request .htmx-indicator {
    display: inline;
}

.htmx-indicator {
    display: none;
}

/* Enhanced Responsive design */
@media (max-width: 1024px) {
    .explorer-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    main {
        padding: 1rem;
    }
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
        padding: 0 0.5rem;
    }
    
    .nav-controls {
        display: flex;
        justify-content: center;
    }
    
    .input-tabs {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .tab-btn {
        flex: 1;
        min-width: 100px;
        font-size: 0.8rem;
    }
    
    .controls-panel,
    .viewer-panel {
        padding: 0.75rem;
    }
    
    .json-viewer {
        max-height: 60vh;
        padding: 0.75rem;
    }
    
    /* Mobile breadcrumb improvements */
    .breadcrumb-container {
        padding: 0.5rem 0.75rem;
    }
    
    .breadcrumb-item {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }
    
    /* Mobile JSON viewer adjustments */
    .json-object-body,
    .json-array-body {
        margin-left: 0.5rem;
        padding-left: 0.5rem;
    }
    
    .json-property,
    .json-array-item {
        flex-wrap: wrap;
        gap: 0.25rem;
    }
    
    .color-picker-btn {
        width: 20px;
        height: 20px;
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    nav h1 a {
        font-size: 1.2rem;
    }
    
    main {
        padding: 0.5rem;
    }
    
    .controls-panel,
    .viewer-panel {
        border-radius: 4px;
        padding: 0.5rem;
    }
    
    .breadcrumb {
        font-size: 0.8rem;
        padding: 0.25rem 0;
    }
    
    .breadcrumb-item {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
    
    .json-type {
        font-size: 0.7rem;
        padding: 0.1rem 0.3rem;
        color: var(--type-color);
        font-weight: 600;
    }
    
    .json-count {
        font-size: 0.7rem;
    }
}

/* IndexedDB Loading States */
.indexeddb-loading {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.indexeddb-loading h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.indexeddb-loading p {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
    border: 1px solid var(--error-color, #ff6b6b);
    border-radius: 6px;
    background-color: var(--error-bg, rgba(255, 107, 107, 0.1));
    margin: 2rem;
}

.error-message h3 {
    color: var(--error-color, #ff6b6b);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.error-message p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.5;
}