/**
 * LectureMinutes Main Stylesheet
 * Using Tailwind CSS via CDN, this file is for custom overrides
 */

:root {
    --primary-color: #2E5090;
    --accent-color: #FF6B35;
    --text-color: #333333;
    --background-color: #FFFFFF;
    --border-color: #E5E5E5;
    --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
    --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}

/* Override with domain-specific colors via inline styles in layout */

/* Custom components */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-block;
    text-decoration: none;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-block;
    text-decoration: none;
    background: transparent;
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 1.5rem;
}

.font-display {
    font-family: var(--font-display);
    letter-spacing: -0.025em;
}

.font-body-tight {
    font-family: var(--font-body);
    letter-spacing: -0.01em;
}

/* Chart tooltips */
.lm-chart-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    pointer-events: none;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    border: 3px solid rgba(0,0,0,0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    animation: spin 1s linear infinite;
}

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

/* Smooth transitions */
* {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

/* Focus states for accessibility */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

summary {
    list-style: none;
}

summary::-webkit-details-marker {
    display: none;
}

.workspace-tree-caret {
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 7px solid currentColor;
    transition: transform 0.2s ease;
    flex: 0 0 auto;
}

details[open] > summary .workspace-tree-caret {
    transform: rotate(90deg);
}

/* App-native reading surface for LaTeX/Pandoc HTML */
.lm-reading-container {
    width: 100%;
}

.lm-reading-shell {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.lm-reading-hero {
    padding: 2rem;
    border-top: 4px solid var(--primary-color);
    border-bottom: 1px solid #e2e8f0;
    background: #ffffff;
}

.lm-reading-eyebrow,
.lm-reading-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
}

.lm-reading-eyebrow {
    margin-bottom: 1rem;
}

.lm-reading-pill {
    display: inline-flex;
    align-items: center;
    min-height: 1.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--primary-color) 10%, white);
    color: var(--primary-color);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0;
}

.lm-reading-pill--muted {
    background: #f1f5f9;
    color: #475569;
}

.lm-reading-pill--state {
    background: #ecfdf5;
    color: #047857;
}

.lm-reading-title {
    margin: 0;
    max-width: 920px;
    color: #0f172a;
    font-size: clamp(1.75rem, 3vw, 3rem);
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: 0;
}

.lm-reading-meta-line {
    margin: 1rem 0 0;
    max-width: 820px;
    color: #475569;
    font-size: 1rem;
    line-height: 1.6;
}

.lm-reading-actions {
    margin-top: 1.35rem;
}

.lm-reading-action,
.lm-reading-reference {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    min-height: 2.5rem;
    padding: 0.65rem 0.9rem;
    border-radius: 0.5rem;
    border: 1px solid #cbd5e1;
    color: #334155;
    background: #ffffff;
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.2;
    overflow-wrap: anywhere;
    text-align: center;
    text-decoration: none;
}

.lm-reading-action:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.lm-reading-action--primary,
.lm-reading-action--doi {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: #ffffff;
}

.lm-reading-action--primary:hover,
.lm-reading-action--doi:hover {
    color: #ffffff;
    opacity: 0.92;
}

.lm-reading-action--secondary {
    background: #f8fafc;
}

.lm-reading-action--full {
    width: 100%;
    margin-top: 0.9rem;
}

.lm-reading-reference {
    background: #fff7ed;
    border-color: #fed7aa;
    color: #9a3412;
}

.lm-reading-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(250px, 320px);
    align-items: start;
}

.lm-reading-prose {
    min-width: 0;
    max-width: 84ch;
    padding: 2.25rem;
    color: #1f2937;
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.78;
}

.lm-reading-prose > div,
.lm-reading-prose .ieee-page,
.lm-reading-prose .ieee-body {
    max-width: none;
    margin: 0;
    padding: 0;
    background: transparent;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    column-count: 1;
}

.lm-reading-prose .ieee-abstract {
    margin: 0 0 1.5rem;
    padding: 1rem 1.15rem;
    border: 1px solid #dbeafe;
    border-left: 4px solid var(--primary-color);
    border-radius: 0.5rem;
    background: #eff6ff;
}

.lm-reading-prose .ieee-abstract h2,
.lm-reading-prose .ieee-body h1,
.lm-reading-prose .ieee-body h2,
.lm-reading-prose .ieee-body h3,
.lm-reading-prose h1,
.lm-reading-prose h2,
.lm-reading-prose h3,
.lm-reading-prose h4 {
    color: #0f172a;
    font-family: inherit;
    font-weight: 800;
    letter-spacing: 0;
    line-height: 1.25;
    text-transform: none;
}

.lm-reading-prose .ieee-abstract h2 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
}

.lm-reading-prose h1,
.lm-reading-prose .ieee-body h1 {
    margin: 2rem 0 0.75rem;
    font-size: 1.45rem;
}

.lm-reading-prose h2,
.lm-reading-prose .ieee-body h2 {
    margin: 1.75rem 0 0.65rem;
    font-size: 1.2rem;
}

.lm-reading-prose h3,
.lm-reading-prose .ieee-body h3 {
    margin: 1.35rem 0 0.5rem;
    font-size: 1.05rem;
}

.lm-reading-prose p,
.lm-reading-prose .ieee-body p {
    margin: 0 0 1rem;
    text-align: left;
}

.lm-reading-prose a {
    color: var(--primary-color);
    font-weight: 650;
    text-decoration: underline;
    text-underline-offset: 0.16em;
}

.lm-reading-prose blockquote {
    margin: 1.25rem 0;
    padding: 0.75rem 1rem;
    border-left: 4px solid #cbd5e1;
    background: #f8fafc;
    color: #475569;
}

.lm-reading-prose figure {
    margin: 1.5rem 0;
}

.lm-reading-prose img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

.lm-reading-prose figcaption {
    margin-top: 0.5rem;
    color: #64748b;
    font-size: 0.9rem;
}

.lm-reading-prose table {
    display: block;
    width: 100%;
    max-width: 100%;
    margin: 1.25rem 0;
    overflow-x: auto;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.lm-reading-prose th,
.lm-reading-prose td {
    border: 1px solid #cbd5e1;
    padding: 0.55rem 0.65rem;
    text-align: left;
}

.lm-reading-prose th {
    background: #f1f5f9;
    color: #0f172a;
}

.lm-reading-prose pre {
    overflow-x: auto;
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 0.5rem;
    background: #0f172a;
    color: #e2e8f0;
}

.lm-reading-prose code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: 0.92em;
}

.lm-reading-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0;
    padding: 1.5rem;
    border-left: 1px solid #e2e8f0;
    background: #f8fafc;
}

.lm-reading-panel {
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    background: #ffffff;
}

.lm-reading-panel h2 {
    margin: 0 0 0.9rem;
    color: #0f172a;
    font-size: 0.95rem;
    font-weight: 800;
}

.lm-reading-panel-label {
    color: #64748b;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0;
}

.lm-reading-doi-value {
    display: block;
    margin-top: 0.35rem;
    color: var(--primary-color);
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.35;
    overflow-wrap: anywhere;
    text-decoration: none;
}

.lm-reading-doi-value--pending {
    color: #64748b;
}

.lm-reading-author-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.lm-reading-author-card {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid #e2e8f0;
}

.lm-reading-author-card:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.lm-reading-author-name {
    color: #0f172a;
    font-weight: 800;
}

.lm-reading-author-affiliation {
    color: #475569;
    font-size: 0.88rem;
    line-height: 1.45;
}

.lm-reading-author-email {
    color: var(--primary-color);
    font-size: 0.88rem;
    font-weight: 700;
    overflow-wrap: anywhere;
    text-decoration: none;
}

.lm-reading-corresponding {
    width: fit-content;
    margin-top: 0.25rem;
    padding: 0.25rem 0.45rem;
    border-radius: 999px;
    background: #ecfdf5;
    color: #047857;
    font-size: 0.72rem;
    font-weight: 800;
}

.lm-reading-detail-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.45rem 0;
    border-bottom: 1px solid #f1f5f9;
    color: #64748b;
    font-size: 0.88rem;
}

.lm-reading-detail-row strong {
    color: #0f172a;
    text-align: right;
}

.lm-reading-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.9rem;
}

.lm-reading-keywords span {
    padding: 0.25rem 0.5rem;
    border-radius: 999px;
    background: #f1f5f9;
    color: #475569;
    font-size: 0.78rem;
    font-weight: 700;
}

.lm-reading-shell--compact,
.lm-reading-shell--embedded,
.lm-reading-shell--preview {
    box-shadow: none;
}

.lm-reading-shell--compact .lm-reading-hero,
.lm-reading-shell--embedded .lm-reading-hero,
.lm-reading-shell--preview .lm-reading-hero {
    padding: 1.25rem;
}

.lm-reading-shell--compact .lm-reading-title,
.lm-reading-shell--embedded .lm-reading-title,
.lm-reading-shell--preview .lm-reading-title {
    font-size: 1.35rem;
    line-height: 1.2;
}

.lm-reading-shell--compact .lm-reading-layout,
.lm-reading-shell--embedded .lm-reading-layout,
.lm-reading-shell--preview .lm-reading-layout {
    grid-template-columns: minmax(0, 1fr);
}

.lm-reading-shell--compact .lm-reading-sidebar,
.lm-reading-shell--embedded .lm-reading-sidebar,
.lm-reading-shell--preview .lm-reading-sidebar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    border-left: 0;
    border-top: 1px solid #e2e8f0;
}

.lm-reading-shell--compact .lm-reading-prose,
.lm-reading-shell--embedded .lm-reading-prose,
.lm-reading-shell--preview .lm-reading-prose {
    max-width: none;
    padding: 1.35rem;
    font-size: 0.96rem;
}

.lm-reading-pdf-card {
    padding: 2rem;
}

.lm-reading-pdf-card h2 {
    margin: 0;
    color: #0f172a;
    font-size: 1.25rem;
    font-weight: 800;
}

.lm-reading-pdf-card p {
    max-width: 58ch;
    margin: 0.65rem 0 0;
    color: #475569;
    line-height: 1.65;
}

@media (max-width: 900px) {
    .lm-reading-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .lm-reading-sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        border-left: 0;
        border-top: 1px solid #e2e8f0;
    }
}

@media (max-width: 640px) {
    .lm-reading-hero,
    .lm-reading-prose,
    .lm-reading-sidebar,
    .lm-reading-pdf-card {
        padding: 1rem;
    }

    .lm-reading-title {
        font-size: 1.55rem;
    }

    .lm-reading-action,
    .lm-reading-reference {
        width: 100%;
    }
}