:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --error: #ef4444;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Dynamic Animated Blobs */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #3b82f6, #1d4ed8);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #8b5cf6, #4338ca);
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    text-align: center;
    margin-bottom: 50px;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Glass Panel Styling */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 20px;
    padding: 30px;
}

/* Selectors */
.selectors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.selector-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: opacity 0.3s ease;
}

.selector-group.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.selector-group label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '▼';
    font-size: 0.8rem;
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

select {
    width: 100%;
    appearance: none;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 15px 20px;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease;
}

select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Results Panel */
.results-panel {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    display: none;
}

.results-panel.visible {
    opacity: 1;
    transform: translateY(0);
    display: block;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 15px;
}

.results-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
}

.status-indicator {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-indicator.loading::before {
    content: '';
    width: 12px;
    height: 12px;
    border: 2px solid var(--text-secondary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.status-indicator.complete {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.engine-details {
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.detail-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.detail-item .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.detail-item .value {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Collections Grid */
.collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.collection-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, background 0.2s ease;
}

.collection-card:hover {
    transform: translateY(-5px);
    background: rgba(30, 41, 59, 0.8);
}

.collection-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.collection-name {
    font-weight: 500;
    font-size: 1.1rem;
    word-break: break-word;
}

.collection-count {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.collection-count.zero {
    color: var(--text-secondary);
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.has-data {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.status-badge.no-data {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s;
}

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

/* Tabs & Document List */
.data-layout {
    display: flex;
    gap: 30px;
    margin-top: 10px;
}

.data-sidebar {
    width: 280px;
    flex-shrink: 0;
    border-right: 1px solid var(--glass-border);
    padding-right: 20px;
    max-height: 800px;
    overflow-y: auto;
}

/* Custom scrollbar for sidebar */
.data-sidebar::-webkit-scrollbar { width: 6px; }
.data-sidebar::-webkit-scrollbar-track { background: transparent; }
.data-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 4px; }

.data-content {
    flex-grow: 1;
    min-width: 0;
}

.tabs {
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
    padding: 4px;
    border: 1px solid var(--glass-border);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
    font-family: inherit;
}

.tab-btn.active {
    background: var(--accent-primary);
    color: white;
}

.document-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.document-list-item {
    background: rgba(255, 255, 255, 0.03);
    border: none;
    border-left: 3px solid transparent;
    padding: 12px 15px;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.document-list-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.document-list-item.active {
    background: rgba(59, 130, 246, 0.15);
    border-left-color: var(--accent-primary);
    color: white;
}

/* Data Viewer Styling */
.data-viewer-container {
    padding: 10px 0;
}

.data-array {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.data-array-item {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 12px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    position: relative;
    border-left: 4px solid rgba(59, 130, 246, 0.8);
}

/* Depth Color Coding for Left Borders */
.data-array-item .data-array-item { border-left-color: rgba(139, 92, 246, 0.8); } /* Purple */
.data-array-item .data-array-item .data-array-item { border-left-color: rgba(16, 185, 129, 0.8); } /* Emerald */
.data-array-item .data-array-item .data-array-item .data-array-item { border-left-color: rgba(245, 158, 11, 0.8); } /* Amber */
.data-array-item .data-array-item .data-array-item .data-array-item .data-array-item { border-left-color: rgba(244, 63, 94, 0.8); } /* Rose */

.data-array-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.data-object {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.data-row {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.data-row:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.data-key {
    flex: 0 0 180px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-weight: 600;
    text-align: right;
    margin-top: 3px;
}

.data-row.data-row-block {
    flex-direction: column;
    gap: 10px;
}

.data-row.data-row-block > .data-key {
    flex: none;
    text-align: left;
    margin-top: 0;
    padding-bottom: 5px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.data-value {
    flex: 1;
    min-width: 0;
    font-size: 0.95rem;
    color: var(--text-primary);
    word-break: break-word;
}

@media (max-width: 900px) {
    .data-layout {
        flex-direction: column;
    }
    .data-sidebar {
        width: 100%;
        border-right: none;
        padding-right: 0;
        max-height: 250px;
    }
    .data-row {
        flex-direction: column;
        gap: 6px;
    }
    .data-key {
        flex: none;
        text-align: left;
    }
}

.data-empty {
    color: var(--text-secondary);
    font-style: italic;
    opacity: 0.7;
}

.data-text {
    line-height: 1.5;
}

.data-image {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 5px;
    border: 1px solid var(--glass-border);
}

.data-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}
.data-link:hover { text-decoration: underline; }

.loading-spinner {
    display: none;
    width: 30px;
    height: 30px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

.loading-spinner.active {
    display: block;
}

/* Login Overlay and Card */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(15, 23, 42, 0.85);
    z-index: 1000;
    backdrop-filter: blur(12px);
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.login-card {
    width: 90%;
    max-width: 420px;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    text-align: center;
}

.login-card h2 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: left;
}

.login-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.login-form label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.login-form input {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.login-form input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.login-btn {
    background: linear-gradient(135deg, var(--accent-primary), #4338ca);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 14px;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.1s, opacity 0.2s;
    margin-top: 10px;
}

.login-btn:hover {
    opacity: 0.95;
}

.login-btn:active {
    transform: scale(0.98);
}

.login-error-msg {
    color: var(--error);
    font-size: 0.85rem;
    margin-top: 5px;
    text-align: center;
}