/* Transformers-specific styling additions */

/* Code comparison layout */
.code-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 2rem 0;
    align-items: start;
}

.code-compare .code-column {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.code-compare .code-header {
    background: #f8f9fa;
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: #495057;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.9em;
}

.code-compare pre {
    margin: 0;
    padding: 1rem;
    background: #ffffff;
    overflow-x: auto;
    font-size: 0.85em;
    line-height: 1.4;
}

.code-compare pre code {
    color: #374151;
}

/* Mobile responsiveness for code comparison */
@media (max-width: 768px) {
    .code-compare {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Tenet styling - special highlighting for design principles */
.tenet-list {
    margin: 3rem 0;
}

.tenet-list ol {
    counter-reset: tenet-counter -1; /* Start from 0 */
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.tenet-list li.tenet {
    counter-increment: tenet-counter;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 2rem 2rem 2rem 4rem;
    margin: 0;
    position: relative;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
    transition: all 0.3s ease;
    cursor: pointer;
}

.tenet-list li.tenet:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    border-color: rgba(0, 123, 255, 0.5);
    background: linear-gradient(135deg, #ffffff 0%, #f0f8ff 100%);
}

/* Colorful numbering system */
.tenet-list li.tenet:nth-child(1):before { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.tenet-list li.tenet:nth-child(2):before { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.tenet-list li.tenet:nth-child(3):before { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.tenet-list li.tenet:nth-child(4):before { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.tenet-list li.tenet:nth-child(5):before { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }
.tenet-list li.tenet:nth-child(6):before { background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%); }
.tenet-list li.tenet:nth-child(7):before { background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%); }
.tenet-list li.tenet:nth-child(8):before { background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%); }
.tenet-list li.tenet:nth-child(9):before { background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%); }

.tenet-list li.tenet:before {
    content: counter(tenet-counter);
    position: absolute;
    top: -12px;
    left: -12px;
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: 3px solid white;
}

.tenet-list li.tenet strong {
    color: #1a202c;
    font-size: 1.1em;
    display: block;
    margin-bottom: 0.5rem;
}

.tenet-list li.tenet em {
    color: #4a5568;
    font-size: 0.95em;
    font-style: italic;
    display: block;
    margin-top: 0.75rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 8px;
    border-left: 3px solid #e2e8f0;
}

.tenet-list li.tenet p {
    color: #2d3748;
    line-height: 1.6;
    margin: 0.5rem 0;
}

/* Add a subtle pulse animation for the numbers */
@keyframes pulse-glow {
    0% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
    50% { box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25); }
    100% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); }
}

.tenet-list li.tenet:hover:before {
    animation: pulse-glow 2s ease-in-out infinite;
}

/* Interactive component styling */
.interactive-demo {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #ffffff;
    margin: 2rem 0;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

/* Model visualization fragment styling */
[id*="plot-model-visualisation"] {
    margin: 1rem -2rem !important;
    width: calc(100% + 4rem) !important;
}

.interactive-demo .demo-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.interactive-demo .demo-content {
    padding: 1.5rem;
}

.interactive-demo .demo-footer {
    background: #f8f9fa;
    padding: 1rem 1.5rem;
    border-top: 1px solid #e2e8f0;
    color: #6c757d;
    font-size: 0.9em;
}

/* Button styling for interactive elements */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Terminal styling */
.terminal-container {
    background: #1a202c;
    border-radius: 8px;
    padding: 1rem;
    color: #e2e8f0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
}

.terminal-input {
    background: #2d3748;
    border: 1px solid #4a5568;
    color: #e2e8f0;
    padding: 0.5rem;
    border-radius: 4px;
    width: 100%;
    font-family: inherit;
}

.terminal-output {
    background: #0a0e1a;
    padding: 1rem;
    border-radius: 4px;
    white-space: pre-wrap;
    word-break: break-all;
    min-height: 100px;
    max-height: 300px;
    overflow-y: auto;
}

/* Attention visualization styling */
.attention-matrix {
    font-family: monospace;
    font-size: 0.8em;
    border-collapse: collapse;
    margin: 1rem 0;
}

.attention-matrix td {
    border: 1px solid #ddd;
    padding: 4px 8px;
    text-align: center;
    min-width: 50px;
}

/* Memory chart styling */
.memory-chart-container {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

/* Image styling improvements */
img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin: 1.5rem 0;
}

/* Table of contents styling - Fixed positioning like ultrascale */
@media (min-width: 1200px) {
    d-article {
        overflow: visible !important;
    }
    
    d-contents {
        align-self: start !important;
        background: white !important;
        grid-column-start: 1 !important;
        grid-column-end: 4 !important;
        grid-row: auto / span 6 !important;
        justify-self: end !important;
        margin-top: 0em !important;
        padding-right: 3em !important;
        padding-left: 2em !important;
        position: -webkit-sticky !important; /* For Safari */
        position: sticky !important;
        top: 10px !important;
        overflow-y: auto !important;
        height: calc(100vh - 40px) !important;
        scrollbar-width: none !important;
        transition: max-height 0.3s ease-out !important;
        z-index: -100 !important;
        display: block !important;
        visibility: visible !important;
    }
}

@media (max-width: 1199px) {
    d-contents {
        display: none !important;
        background: white !important;
        justify-self: start !important;
        align-self: start !important;
        padding-bottom: 0.5em !important;
        margin-bottom: 1em !important;
        padding-left: 0.25em !important;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
        overflow-y: scroll !important;
        height: calc(100vh - 40px) !important;
        scrollbar-width: none !important;
        z-index: -100 !important;
    }
}

/* Force TOC to be visible and override distill defaults */
d-contents {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* TOC Navigation styling */
d-contents .toc-header {
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #007bff;
    padding-bottom: 0.5rem;
}

d-contents .toc-title {
    font-weight: bold;
    font-size: 1.2em;
    color: #333;
}

d-contents nav a {
    color: rgba(0, 0, 0, 0.7);
    text-decoration: none;
    border-bottom: none;
    display: block;
    padding: 0.3rem 0;
    font-size: 0.9em;
    line-height: 1.4;
    transition: color 0.2s ease;
}

d-contents nav a:hover {
    color: #007bff;
    text-decoration: none;
}

d-contents nav a.active {
    color: #007bff;
    font-weight: 600;
}

d-contents nav div {
    margin-bottom: 0.2rem;
}

/* Smooth scrollbar */
d-contents {
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 123, 255, 0.3) transparent;
}

d-contents::-webkit-scrollbar {
    width: 6px;
}

d-contents::-webkit-scrollbar-track {
    background: transparent;
}

d-contents::-webkit-scrollbar-thumb {
    background: rgba(0, 123, 255, 0.3);
    border-radius: 3px;
}

d-contents::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 123, 255, 0.5);
}

/* Custom tooltip styling for tenet links */
d-contents nav a[title] {
    position: relative;
    cursor: help;
}

d-contents nav a[title]:hover {
    color: #667eea;
}

/* Enhanced tooltip using CSS (fallback for title attribute) */
d-contents nav a[title]:after {
    content: attr(title);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: #1a202c;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85em;
    white-space: normal;
    width: 300px;
    line-height: 1.4;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

d-contents nav a[title]:before {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translate(-8px, -50%);
    border: 8px solid transparent;
    border-right-color: #1a202c;
    z-index: 1002;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

d-contents nav a[title]:hover:after,
d-contents nav a[title]:hover:before {
    opacity: 1;
    visibility: visible;
}

/* Adjust for smaller screens */
@media (max-width: 1400px) {
    d-contents nav a[title]:after {
        left: auto;
        right: 100%;
        margin-right: 1rem;
        width: 250px;
    }
    
    d-contents nav a[title]:before {
        left: auto;
        right: 100%;
        transform: translate(8px, -50%);
        border-right-color: transparent;
        border-left-color: #1a202c;
    }
}

/* Improve code syntax highlighting with Prism */
pre[class*="language-"] {
    background: #f8f9fa !important;
    border: 1px solid #e9ecef !important;
    border-radius: 8px !important;
    padding: 1.5rem !important;
    margin: 1.5rem 0 !important;
    overflow-x: auto !important;
    font-size: 0.9em !important;
    line-height: 1.5 !important;
}

code[class*="language-"] {
    background: none !important;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Courier New', monospace !important;
    color: #383a42 !important;
}

/* Inline code */
p code, li code {
    background: #f1f3f4 !important;
    padding: 0.2em 0.4em !important;
    border-radius: 3px !important;
    font-size: 0.9em !important;
    color: #d73a49 !important;
}

/* Distill article improvements */
d-article {
    max-width: none;
    font-size: 19px;
    line-height: 1.7 !important;
    color: #1a1a1a;
    padding-top: 1rem !important;
    grid-row-gap: 0 !important;
}

d-article > * {
    grid-column: middle !important;
    max-width: none;
}

/* Adjust for TOC on larger screens */
@media (min-width: 1200px) {
    d-article > * {
        grid-column: text / page-end !important;
        max-width: none;
    }
}

/* Improve paragraph readability */
d-article p {
    font-size: 19px;
    line-height: 1.5;
    margin-top: 0 !important;
    color: #1a1a1a;
}

/* Improve heading sizes */
d-article h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin: 3rem 0 2rem 0;
    color: #1a202c;
    font-weight: 700;
}

d-article h2 {
    font-size: 2.5rem;
    line-height: 1.3;
    margin: 1.5rem 0 0.75rem 0 !important;
    padding-bottom: 0.5rem !important;
    color: #1a202c;
    font-weight: 650;
}

d-article h3 {
    font-size: 2rem;
    line-height: 1.4;
    margin: 2rem 0 1rem 0;
    color: #1a202c;
    font-weight: 600;
}

d-article h4 {
    font-size: 1.5rem;
    line-height: 1.4;
    margin: 1.5rem 0 1rem 0;
    color: #2d3748;
    font-weight: 600;
}

/* Improve list readability */
d-article ul li,
d-article ol li {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

/* Enhanced tenet reference styling with custom tooltips */
a[href^="#source-of-truth"],
a[href^="#one-model-one-file"],
a[href^="#code-is-product"],
a[href^="#standardize-dont-abstract"],
a[href^="#do-repeat-yourself"],
a[href^="#minimal-user-api"],
a[href^="#backwards-compatibility"],
a[href^="#consistent-public-surface"],
a[href^="#modular-toolbox"] {
    position: relative;
    color: #667eea;
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

a[href^="#source-of-truth"]:hover,
a[href^="#one-model-one-file"]:hover,
a[href^="#code-is-product"]:hover,
a[href^="#standardize-dont-abstract"]:hover,
a[href^="#do-repeat-yourself"]:hover,
a[href^="#minimal-user-api"]:hover,
a[href^="#backwards-compatibility"]:hover,
a[href^="#consistent-public-surface"]:hover,
a[href^="#modular-toolbox"]:hover {
    color: #4c51bf;
    text-decoration-color: #4c51bf;
    background: rgba(102, 126, 234, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
}

/* Custom tooltip using data-tooltip attribute */
a[data-tooltip]:after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1a202c;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85em;
    font-weight: 400;
    white-space: normal;
    width: 320px;
    line-height: 1.4;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    margin-bottom: 8px;
}

a[data-tooltip]:before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: #1a202c;
    z-index: 1002;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

a[data-tooltip]:hover:after,
a[data-tooltip]:hover:before {
    opacity: 1;
    visibility: visible;
}

/* Breadcrumb navigation styling */
.crumbs {
    background: linear-gradient(135deg, #f0f4ff 0%, #e6eeff 100%);
    border-left: 5px solid #667eea;
    padding: 1.25rem 1.75rem;
    margin: 2.5rem 0;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.12);
    font-size: 0.95em;
    line-height: 1.6;
    color: #4a5568;
}

.crumbs strong {
    color: #667eea;
    font-weight: 700;
}

.crumbs code {
    background: rgba(102, 126, 234, 0.1);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
    color: #4c51bf;
}

.crumbs a {
    color: #667eea;
    font-weight: 500;
}

/* Improve blockquote styling */
d-article blockquote {
    font-size: 19px;
    line-height: 1.8;
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    border-left: 4px solid #667eea;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: #4a5568;
}

/* Link capsule styling - only for external HTTP(S) links */
d-article a[href^="http://"],
d-article a[href^="https://"] {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1565c0;
    text-decoration: none;
    padding: 0.15em 0.5em;
    border-radius: 12px;
    border: 1px solid #90caf9;
    display: inline-block;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(21, 101, 192, 0.15);
}

d-article a[href^="http://"]:hover,
d-article a[href^="https://"]:hover {
    background: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);
    color: white;
    border-color: #1565c0;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(21, 101, 192, 0.3);
}

d-article a[href^="http://"]:active,
d-article a[href^="https://"]:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(21, 101, 192, 0.2);
}

/* Full width elements */
d-article .code-compare,
d-article .interactive-demo,
d-article .memory-chart-container {
    max-width: none;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
}

/* Responsive design improvements */
@media (max-width: 1200px) {
    d-article .code-compare,
    d-article .interactive-demo {
        max-width: 95%;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    .tenet-list li.tenet {
        padding: 1rem;
    }

    .interactive-demo .demo-content {
        padding: 1rem;
    }
}