/* ============================
   INSIGHTS STYLES
   ============================ */

:root {
    --insight-bg: #0A0F1C;
    --insight-panel: rgba(15, 23, 42, 0.82);
    --insight-border: rgba(148, 163, 184, 0.18);
    --insight-text: #F8FAFC;
    --insight-muted: #94A3B8;
    --insight-accent: #00D4FF;
    --insight-accent-2: #7B61FF;
    --insight-shadow: 0 20px 50px rgba(2, 8, 23, 0.35);
}

body {
    background: var(--insight-bg);
}

.insights-page {
    padding-top: 5rem;
}

.insights-hero {
    padding: 5rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.insights-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(0, 212, 255, 0.2), transparent 45%);
    pointer-events: none;
}

.insights-hero .section-container {
    position: relative;
    z-index: 1;
}

.insights-hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
    align-items: center;
}

.insights-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.8rem;
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: 999px;
    color: var(--insight-accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 1rem;
}

.insights-hero h1 {
    font-size: clamp(2.2rem, 4.8vw, 3.6rem);
    margin-bottom: 1rem;
}

.insights-hero p {
    color: var(--insight-muted);
    max-width: 720px;
    font-size: 1.05rem;
}

.insights-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.insights-panel {
    background: var(--insight-panel);
    border: 1px solid var(--insight-border);
    border-radius: 1.4rem;
    padding: 1.5rem;
    box-shadow: var(--insight-shadow);
}

.insights-panel h3 {
    margin-bottom: 0.8rem;
}

.insights-panel ul {
    list-style: none;
    display: grid;
    gap: 0.7rem;
}

.insights-panel li {
    color: var(--insight-muted);
    padding-left: 1rem;
    position: relative;
}

.insights-panel li::before {
    content: '•';
    color: var(--insight-accent);
    position: absolute;
    left: 0;
}

.insights-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
    align-items: center;
    margin: 1rem 0 2rem;
}

.insight-search {
    flex: 1;
    min-width: 280px;
    padding: 0.95rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--insight-border);
    background: rgba(15, 23, 42, 0.8);
    color: var(--insight-text);
}

.insight-filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.filter-pill {
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    border: 1px solid var(--insight-border);
    color: var(--insight-muted);
    background: transparent;
}

.filter-pill.active,
.filter-pill:hover {
    color: var(--insight-text);
    background: rgba(0, 212, 255, 0.14);
    border-color: rgba(0, 212, 255, 0.3);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

.insight-card {
    background: var(--insight-panel);
    border: 1px solid var(--insight-border);
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: var(--insight-shadow);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.insight-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 212, 255, 0.35);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
}

.insight-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.insight-card-body {
    padding: 1.25rem;
}

.insight-meta {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--insight-accent);
    font-size: 0.84rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.8rem;
}

.insight-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.7rem;
}

.insight-card p {
    color: var(--insight-muted);
    margin-bottom: 1rem;
}

.insight-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.article-shell {
    padding: 4rem 0 4rem;
}

.article-hero {
    padding: 6rem 0 2.5rem;
}

.article-hero img {
    width: 100%;
    max-height: 380px;
    object-fit: cover;
    border-radius: 1.4rem;
    border: 1px solid var(--insight-border);
    box-shadow: var(--insight-shadow);
}

.article-badge {
    display: inline-flex;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(0, 212, 255, 0.12);
    color: var(--insight-accent);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.article-title {
    font-size: clamp(2rem, 4.4vw, 3rem);
    margin-bottom: 1rem;
}

.article-meta {
    color: var(--insight-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.article-hero-meta {
    margin-top: 1rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--insight-border);
    border-radius: 1rem;
    background: rgba(15, 23, 42, 0.68);
}

.article-meta-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.7rem;
}

.article-reading-time,
.article-updated {
    color: var(--insight-accent);
    font-size: 0.95rem;
}

.article-excerpt {
    color: var(--insight-muted);
    max-width: 720px;
    line-height: 1.7;
}

.article-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
}

.article-sidebar {
    position: sticky;
    top: 110px;
    display: grid;
    gap: 1rem;
}

.article-card,
.article-toc,
.article-cta-card {
    background: var(--insight-panel);
    border: 1px solid var(--insight-border);
    border-radius: 1rem;
    padding: 1.2rem;
    box-shadow: var(--insight-shadow);
}

.article-toc h3,
.article-cta-card h3,
.article-card h3 {
    margin-bottom: 0.8rem;
}

.article-toc nav ul {
    list-style: none;
    display: grid;
    gap: 0.55rem;
}

.article-toc a {
    color: var(--insight-muted);
    font-size: 0.95rem;
}

.article-toc a:hover {
    color: var(--insight-accent);
}

.article-toc a.active {
    color: var(--insight-text);
    background: rgba(0, 212, 255, 0.12);
    border-radius: 0.55rem;
    padding: 0.15rem 0.4rem;
}

.article-content {
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid var(--insight-border);
    border-radius: 1.25rem;
    padding: 2rem;
    box-shadow: var(--insight-shadow);
    font-size: 1.04rem;
    line-height: 1.85;
}

.article-content > * + * {
    margin-top: 1rem;
}

.article-content h1,
.article-content h2,
.article-content h3 {
    color: var(--insight-text);
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    line-height: 1.2;
}

.article-content h1 {
    font-size: clamp(1.8rem, 3.2vw, 2.3rem);
}

.article-content h2 {
    font-size: clamp(1.35rem, 2.2vw, 1.8rem);
}

.article-content h3 {
    font-size: 1.2rem;
}

.article-content p,
.article-content li {
    color: var(--insight-muted);
    margin-bottom: 0.9rem;
}

.article-content a {
    color: var(--insight-accent);
}

.article-content ul,
.article-content ol {
    padding-left: 1.3rem;
    margin-bottom: 0.8rem;
    display: grid;
    gap: 0.6rem;
}

.article-content blockquote {
    padding: 1rem 1.2rem;
    border-left: 3px solid var(--insight-accent);
    background: rgba(0, 212, 255, 0.08);
    border-radius: 0.85rem;
    margin: 1rem 0;
    color: var(--insight-text);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.2rem 0;
    overflow: hidden;
    border-radius: 0.85rem;
    border: 1px solid var(--insight-border);
}

.article-content th,
.article-content td {
    padding: 0.75rem 0.85rem;
    border-bottom: 1px solid var(--insight-border);
    text-align: left;
}

.article-content th {
    background: rgba(0, 212, 255, 0.12);
    color: var(--insight-text);
}

.article-content pre {
    padding: 1rem;
    border-radius: 0.85rem;
    background: rgba(2, 8, 23, 0.9);
    border: 1px solid var(--insight-border);
    overflow-x: auto;
}

.article-content code {
    font-family: Consolas, monospace;
    font-size: 0.95rem;
}

.article-content hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.3), transparent);
    margin: 1.4rem 0;
}

.article-callout {
    padding: 1rem 1.1rem;
    border-left: 3px solid var(--insight-accent);
    border-radius: 0.85rem;
    background: rgba(0, 212, 255, 0.08);
    margin: 1rem 0;
}

.article-callout.warning {
    border-left-color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
}

.article-figure {
    margin: 1.2rem 0;
}

.article-figure img {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: 1rem;
    border: 1px solid var(--insight-border);
}

.article-figure + p {
    margin-top: 0.4rem;
}

.article-divider {
    margin: 1.6rem 0;
}

.progress-bar {
    position: fixed;
    inset: 0 0 auto 0;
    height: 3px;
    background: rgba(255,255,255,0.08);
    z-index: 1100;
}

.progress-bar span {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--insight-accent), var(--insight-accent-2));
}

.share-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1rem;
}

.share-row button,
.share-row a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 44px;
    min-width: 44px;
    white-space: nowrap;
    padding: 0.6rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--insight-border);
    background: transparent;
    color: var(--insight-muted);
}

.share-row button:hover,
.share-row a:hover {
    color: var(--insight-text);
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-1px);
}

.share-row .icon-button {
    font-size: 1.05rem;
    padding: 0 0.9rem;
}

.share-row .icon-button[aria-label] {
    font-family: inherit;
}

.article-card .btn,
.article-cta-card .btn,
.article-nav a,
.share-row .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    min-height: 44px;
    line-height: 1.2;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.article-nav a {
    color: var(--insight-text);
    padding: 0.8rem 1rem;
    border: 1px solid var(--insight-border);
    border-radius: 999px;
}

.article-nav a:hover {
    border-color: rgba(0, 212, 255, 0.28);
}

.back-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--insight-accent), var(--insight-accent-2));
    color: #07111f;
    border: none;
    box-shadow: var(--insight-shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 1200;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.view-count {
    color: var(--insight-accent);
    font-size: 0.95rem;
    margin-top: 0.6rem;
}

.article-footer {
    padding: 0 0 4rem;
}

@media (max-width: 960px) {
    .insights-grid {
        grid-template-columns: 1fr 1fr;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }
}

@media (max-width: 700px) {
    .insights-grid {
        grid-template-columns: 1fr;
    }

    .insights-hero-content {
        grid-template-columns: 1fr;
    }

    .insights-toolbar {
        align-items: stretch;
    }

    .article-content {
        padding: 1.25rem;
    }
}