@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

* {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    overflow: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(to right, rgba(0, 0, 0, 0.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 0, 0, 0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: 0 0, 0 0;
    pointer-events: none;
    opacity: 0.4;
    z-index: 0;
}

.logo-img {
    object-fit: contain;
    flex-shrink: 0;
}

.sidebar-item {
    transition: all 0.2s ease;
}

.sidebar-item:hover {
    transform: translateX(2px);
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.pulse-slow {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.pdf-container {
    height: calc(100vh - 200px);
    overflow-y: auto;
    overflow-x: hidden;
    background: #f5f5f5;
}

.pdf-page {
    margin: 10px auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    background: white;
    display: block;
}

.hidden {
    display: none !important;
}

#pdfViewer {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    min-height: 100%;
}

#pdfViewer.hidden {
    display: none !important;
}

.loading-spinner {
    border: 3px solid #f3f4f6;
    border-top: 3px solid #000000;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

.btn-primary {
    transition: all 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:active {
    transform: translateY(0);
}

.input-focus:focus {
    transform: scale(1.01);
    transition: transform 0.2s ease;
}

.history-item {
    transition: all 0.2s ease;
}

.history-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
    transform: translateX(4px);
}

.table-row {
    transition: background-color 0.15s ease;
}

.table-row:hover {
    background-color: #f9fafb;
}

.scrollbar-hide::-webkit-scrollbar {
    display: none;
}

.scrollbar-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.resize-handle {
    width: 4px;
    height: 100%;
    background: #e5e7eb;
    cursor: col-resize;
    transition: background 0.2s ease;
    position: relative;
    flex-shrink: 0;
}

.resize-handle:hover {
    background: #000000;
}

.resize-handle::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 40px;
    background: #9ca3af;
    border-radius: 2px;
}

.resize-handle:hover::before {
    background: #000000;
}

.resizing {
    user-select: none;
}

body.resizing {
    cursor: col-resize;
}

.sidebar-collapsed {
    width: 0 !important;
    overflow: hidden;
    border: none;
}

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

.sidebar-toggle:hover {
    background-color: #f3f4f6;
}

.sidebar-reopen-btn {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 50;
    background: white;
    border: 1px solid #e5e7eb;
    border-left: none;
    border-radius: 0 12px 12px 0;
    padding: 12px 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
}

.sidebar-reopen-btn:hover {
    background: #f9fafb;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
}

.sidebar-reopen-btn.hidden {
    display: none;
}

.markdown-content {
    line-height: 1.7;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    font-weight: 700;
    margin-top: 1.5em;
    margin-bottom: 0.75em;
    color: #111827;
}

.markdown-content h1 {
    font-size: 1.875rem;
    border-bottom: 2px solid #e5e7eb;
    padding-bottom: 0.5em;
}

.markdown-content h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 0.5em;
}

.markdown-content h3 {
    font-size: 1.25rem;
}

.markdown-content h4 {
    font-size: 1.125rem;
}

.markdown-content p {
    margin-bottom: 1em;
}

.markdown-content ul,
.markdown-content ol {
    margin-left: 1.5em;
    margin-bottom: 1em;
}

.markdown-content li {
    margin-bottom: 0.5em;
}

.markdown-content ul {
    list-style-type: disc;
}

.markdown-content ol {
    list-style-type: decimal;
}

.markdown-content strong {
    font-weight: 600;
    color: #111827;
}

.markdown-content em {
    font-style: italic;
}

.markdown-content span[style*="color: green"],
.markdown-content span[style*="color:green"] {
    color: #16a34a !important;
    font-weight: 500;
}

.markdown-content span[style*="color: red"],
.markdown-content span[style*="color:red"] {
    color: #dc2626 !important;
    font-weight: 500;
}

.markdown-content code {
    background-color: #f3f4f6;
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875em;
}

.markdown-content pre {
    background-color: #f3f4f6;
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin-bottom: 1em;
}

.markdown-content pre code {
    background-color: transparent;
    padding: 0;
}

.markdown-content blockquote {
    border-left: 4px solid #000000;
    padding-left: 1rem;
    margin-left: 0;
    margin-bottom: 1em;
    color: #6b7280;
    font-style: italic;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid #e5e7eb;
    padding: 0.5rem;
    text-align: left;
}

.markdown-content th {
    background-color: #f9fafb;
    font-weight: 600;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid #e5e7eb;
    margin: 2em 0;
}

.markdown-content .katex {
    font-size: 1.1em;
}

.markdown-content .katex-display {
    margin: 1em 0;
    overflow-x: auto;
    overflow-y: hidden;
}

.markdown-content .katex-display > .katex {
    white-space: nowrap;
}

.tab-button {
    transition: all 0.2s ease;
}

.tab-content {
    animation: fadeIn 0.3s ease-in;
}

#newChatModal {
    backdrop-filter: blur(4px);
}

.stat-tooltip {
    position: relative;
    display: inline-block;
    cursor: help;
}

.stat-tooltip .tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    margin-left: 4px;
    color: #9ca3af;
    transition: color 0.2s ease;
}

.stat-tooltip:hover .tooltip-icon {
    color: #000000;
}

.stat-tooltip .tooltip-text {
    visibility: hidden;
    width: 280px;
    background-color: #1f2937;
    color: #ffffff;
    text-align: left;
    border-radius: 8px;
    padding: 10px 12px;
    position: absolute;
    z-index: 1000;
    bottom: 125%;
    left: 50%;
    margin-left: -140px;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    font-size: 12px;
    line-height: 1.5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    pointer-events: none;
}

.stat-tooltip .tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #1f2937 transparent transparent transparent;
}

.stat-tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.question-highlight {
    background-color: #e0f2fe;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    border-left: 3px solid #0ea5e9;
    margin-bottom: 0.5rem;
    display: inline-block;
    width: 100%;
}