/* ==========================================================================
   JT Partnering — main.css
   Utility classes + component styles. Mobile-first, no framework.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Custom properties (design tokens)
   -------------------------------------------------------------------------- */
:root {
    --color-bg:           #0d0d0d;
    --color-bg-card:      #161616;
    --color-bg-header:    rgba(13, 13, 13, 0.92);
    --color-border:       #2a2a2a;
    --color-text:         #e8e8e8;
    --color-text-muted:   #888;
    --color-accent:       #4f8ef7;
    --color-accent-light: #4f8df793;
    --color-accent-hover: #3a7aec;
    --color-white:        #fff;

    --font-base: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --radius:    8px;
    --radius-lg: 16px;
    --shadow:    0 2px 12px rgba(0, 0, 0, 0.4);

    --max-width: 1100px;
    --nav-h:     64px;
}

/* --------------------------------------------------------------------------
   Reset / base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-base);
    font-size: 1rem;
    line-height: 1.65;
    min-height: 100vh;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); }

ul { list-style: none; }

img { max-width: 100%; display: block; }

/* --------------------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------------------- */
.section-inner {
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    transition: background 0.2s, transform 0.15s;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
}
.btn-primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-1px);
}
.btn-secondary {
    background: transparent;
    color: var(--color-accent);
    border: 1.5px solid var(--color-accent);
}
.btn-secondary:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-1px);
}
.btn-large { padding: 0.9rem 2.2rem; font-size: 1.1rem; }

.btn-tight { padding: 0.1rem 0.85rem; font-size: 0.8rem;}

/* --------------------------------------------------------------------------
   Navigation 
   -------------------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg-header);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    height: var(--nav-h);
}

.nav-container {
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-white);
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    flex: 1;
}

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-white); }

.nav-cta { margin-left: auto; font-size: 0.9rem; padding: 0.5rem 1.2rem; }

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.4rem;
    cursor: pointer;
    margin-left: auto;
}

.mobile-nav {
    display: none;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
}
.mobile-nav li { padding: 0.6rem 0; }
.mobile-nav a { color: var(--color-text); font-size: 1rem; }

@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .hamburger { display: block; }
    .mobile-nav.open { display: block; }
}

/* --------------------------------------------------------------------------
   Main content area
   -------------------------------------------------------------------------- */
.main-content { min-height: calc(100vh - var(--nav-h) - 80px); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
    padding: 6rem 1.5rem 5rem;
    text-align: center;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: 1.25rem;
}
.hero-tagline {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin-inline: auto;
    margin-bottom: 2rem;
}
.hero-cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Page hero (inner pages)
   -------------------------------------------------------------------------- */
.page-hero {
    padding: 2rem 1.5rem 2.5rem;
    border-bottom: 1px solid var(--color-border);
}
.page-hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 0.75rem;
}
.page-intro {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    /* max-width: 680px; */
}

/* --------------------------------------------------------------------------
   Value props
   -------------------------------------------------------------------------- */
.value-props { padding: 4rem 1.5rem; }
.vp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.vp-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color 0.2s, transform 0.2s;
}
.vp-card:hover { border-color: var(--color-accent); transform: translateY(-3px); }
.vp-card h3 { font-size: 1.1rem; color: var(--color-white); margin-bottom: 0.5rem; }

/* --------------------------------------------------------------------------
   Credibility metrics
   -------------------------------------------------------------------------- */
.credibility { padding: 3rem 1.5rem 5rem; }
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    text-align: center;
}
.metric { padding: 2rem 1rem; }
.metric-number { display: block; font-size: 2rem; font-weight: 800; color: var(--color-accent); }
.metric-label { font-size: 0.85rem; color: var(--color-text-muted); }

/* --------------------------------------------------------------------------
   Timeline (Bio)  — mobile-first, alternating left/right on desktop
   -------------------------------------------------------------------------- */
.timeline-section { padding: 3rem 0; }

/* Mobile: single column with left border */
.timeline {
    position: relative;
    margin-top: 2.5rem;
    padding-left: 2rem;
    border-left: 2px solid var(--color-border);
}

.timeline-entry {
    position: relative;
    margin-bottom: 2.5rem;
}

/* dot on the left border */
.timeline-entry::before {
    content: '';
    position: absolute;
    left: -2.6rem;
    top: 1rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 2px solid var(--color-bg);
    z-index: 1;
}

.timeline-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.timeline-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 4px 20px rgba(79, 142, 247, 0.08);
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.timeline-companies {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 0.15rem;
    line-height: 1.3;
}
.timeline-company { white-space: nowrap; }
.timeline-company-sep { color: var(--color-text-muted); font-weight: 400; }

.timeline-locations {
    font-size: 0.82rem;
    font-style: italic;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.timeline-body { border-top: 1px solid var(--color-border); padding-top: 0.85rem; }

.resp-group-label {
    display: inline-block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    background: rgba(79, 142, 247, 0.08);
    border: 1px solid rgba(79, 142, 247, 0.25);
    border-radius: 4px;
    padding: 0.15rem 0.55rem;
    margin-top: 0.75rem;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.resp-short {
    font-size: 0.88rem;
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* legacy list style — kept for other uses */
.resp-list {
    list-style: disc;
    padding-left: 1.1rem;
    margin-bottom: 0.25rem;
}
.resp-list li {
    font-size: 0.88rem;
    color: var(--color-text);
    margin-bottom: 0.35rem;
    line-height: 1.55;
}

/* Map panel — hidden on mobile, shown on desktop */
.timeline-map {
    display: none;
}

/* Desktop: alternating left/right around a centre line */
@media (min-width: 768px) {
    .timeline {
        padding-left: 0;
        border-left: none;
    }

    /* Centre vertical line via pseudo-element on the section wrapper */
    .timeline::before {
        content: '';
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        top: 0;
        bottom: 0;
        width: 2px;
        background: var(--color-border);
    }

    .timeline-entry {
        width: 50%;
        margin-bottom: 3rem;
    }

    /* Even entries (0, 2, …): left side */
    .timeline-entry.left {
        margin-right: auto;
        padding-right: 2.5rem;
    }

    /* Odd entries (1, 3, …): right side */
    .timeline-entry.right {
        margin-left: 50%;
        padding-left: 2.5rem;
    }

    /* Dot for left entries: sits at the right edge → centre line */
    .timeline-entry.left::before {
        left: auto;
        right: -5.5px;
        top: 1.1rem;
    }

    /* Dot for right entries: sits at the left edge → centre line */
    .timeline-entry.right::before {
        left: -5.5px;
        top: 1.1rem;
    }

    /* ---- Entries with a map panel ---- */

    /* Show the map container */
    .timeline-map {
        align-self: center;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .timeline-map svg {
        display: block;
        width: 100%;
        height: auto;
    }

    /* Full-width flex row, straddling the centre line */
    .timeline-entry.has-map {
        width: 100%;
        display: flex;
        align-items: flex-start;
        gap: 8%;        /* the ~8 % gap sits over the centre line */
        margin-right: 0 !important;
        margin-left: 0 !important;
        padding: 0;
    }
    .timeline-entry.has-map .timeline-card,
    .timeline-entry.has-map .timeline-map {
        flex: 0 0 46%;
    }

    /* left entry: card on left, map on right */
    .timeline-entry.left.has-map .timeline-card { order: 1; }
    .timeline-entry.left.has-map .timeline-map  { order: 2; }

    /* right entry: map on left, card on right */
    .timeline-entry.right.has-map .timeline-map  { order: 1; }
    .timeline-entry.right.has-map .timeline-card { order: 2; }

    /* Dot sits dead on the centre line for has-map entries */
    .timeline-entry.has-map::before {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        top: 1.5rem;
    }
}

/* --------------------------------------------------------------------------
   Skills (Bio)
   -------------------------------------------------------------------------- */
.skills-section { padding: 2rem 1.5rem 4rem; }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-top: 1.5rem; }
.skill-group h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-accent); margin-bottom: 0.75rem; }
.skill-group ul { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.skill-group li {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.2rem 0.6rem;
    font-size: 0.82rem;
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Partnering accordions
   -------------------------------------------------------------------------- */
.partnering-section { padding: 3rem 1.5rem; }
.partnering-grid { display: flex; flex-direction: column; gap: 1rem; margin-top: 2rem; }
.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.2s;
}
.service-card[open] { border-color: var(--color-accent); }
.service-card summary {
    padding: 1.5rem 2rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.service-card summary::-webkit-details-marker { display: none; }
.service-card summary h2 { font-size: 1.05rem; color: var(--color-white); }
.who-its-for { font-size: 0.82rem; color: var(--color-accent); }
.service-card ul { padding: 0 2rem 1.5rem; display: flex; flex-direction: column; gap: 0.4rem; }
.service-card li { font-size: 0.9rem; color: var(--color-text-muted); padding-left: 1rem; position: relative; }
.service-card li::before { content: '–'; position: absolute; left: 0; color: var(--color-accent); }
.partnering-cta { text-align: center; padding: 3rem 0 1rem; }
.partnering-cta p { color: var(--color-text-muted); margin-bottom: 1rem; }

/* --------------------------------------------------------------------------
   Portfolio tabs
   -------------------------------------------------------------------------- */
.tab-nav { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 1.5rem; }
.tab-btn {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    border-radius: var(--radius);
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}
.tab-btn.active, .tab-btn:hover {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.tab-panel { display: none; padding: 3rem 1.5rem; }
.tab-panel.active { display: block; }

.case-studies-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.case-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: border-color 0.2s, transform 0.2s;
}
.case-card:hover { border-color: var(--color-accent); transform: translateY(-2px); }
.case-card h3 { font-size: 1rem; color: var(--color-white); margin-bottom: 0.25rem; }
.case-card-image {
    width: 100%;
    height: 170px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    margin-bottom: 0.9rem;
}
.case-context { font-size: 0.8rem; color: var(--color-accent); margin-bottom: 0.75rem; }
.case-tags { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-top: 1rem; }
.case-tags span {
    background: rgba(79, 142, 247, 0.1);
    color: var(--color-accent);
    border-radius: 4px;
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
}

.models-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.model-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.model-thumb { background: var(--color-border); height: 140px; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; color: var(--color-text-muted); }
.model-thumb-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.model-card h3, .model-card p { padding: 0.75rem 1.25rem 0; font-size: 0.9rem; }
.model-card .case-tags { padding: 0.5rem 1.25rem 1.25rem; }

.tech-ai-grid { display: grid; gap: 1.5rem; }
.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    max-width: 600px;
}
.feature-card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    margin-bottom: 1rem;
}
.feature-card h2 { color: var(--color-white); margin-bottom: 0.25rem; }
.feature-card p { margin-bottom: 1rem; }

/* --------------------------------------------------------------------------
   Certifications
   -------------------------------------------------------------------------- */
.certs-section { padding: 3rem 1.5rem; }
.certs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.cert-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 1.75rem; text-align: center; }
.cert-card h3 { color: var(--color-white); margin-bottom: 0.25rem; font-size: 1rem; }
.cert-issuer { font-size: 0.85rem; color: var(--color-text-muted); }
.cert-year { font-size: 0.8rem; color: var(--color-accent); margin-top: 0.25rem; }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact-section { padding: 3rem 1.5rem; }
.contact-inner { display: flex; flex-direction: column; align-items: flex-start; gap: 2rem;}
.contact-subsection { width: 100%; }
.contact-label { 
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-white);
    margin-bottom: 1rem;
    text-align: left;
}
.contact-note {  color: var(--color-text-muted); }
.contact-divider {
    width: 100%;
    height: 1px;
    background: var(--color-border);
}
.contact-links { 
    display: flex; 
    align-items: center; 
    gap: 1.5rem; 
    flex-wrap: wrap;
}
.contact-link {
    color: var(--color-accent);
    transition: color 0.2s ease;
}
.contact-link:hover {
    color: var(--color-accent-hover);
}


/* --------------------------------------------------------------------------
   Chat
   -------------------------------------------------------------------------- */
.chat-section { padding: 2rem 1.5rem 4rem; }
.chat-widget-anchor { scroll-margin-top: calc(var(--nav-h) + 8px); }
.chat-disclaimer { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 5rem; }
.chat-disclaimer-stack {
    margin-top: 0.7rem;
    max-width: 780px;
    border-left: 2px solid var(--color-border);
    padding-left: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.chat-disclaimer-stack p {
    margin: 0;
    font-size: 0.8rem;
    line-height: 1.45;
    color: var(--color-text-muted);
}
.chat-disclaimer-stack strong {
    color: var(--color-text);
    font-weight: 600;
}
.chat-disclaimer-stack a {
    color: var(--color-text-muted);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}
.chat-disclaimer-stack a:hover { color: var(--color-accent); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem;
}
.footer-container {
    max-width: var(--max-width);
    margin-inline: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: var(--color-text-muted);
}
.footer-container a { color: var(--color-text-muted); }
.footer-container a:hover { color: var(--color-accent); }

/* --------------------------------------------------------------------------
   Scroll-triggered fade-in animation
   -------------------------------------------------------------------------- */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   Chat widget (React component styles)
   -------------------------------------------------------------------------- */
.chat-widget {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 780px;
    min-height: 400px;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 200px;
}

.chat-empty { color: var(--color-text-muted); }
.chat-empty p { margin-bottom: 1rem; }

.example-prompts { display: flex; flex-direction: column; gap: 0.4rem; }
.example-prompt-btn {
    background: var(--color-accent-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    padding: 0.5rem 0.9rem;
    font-size: 0.85rem;
    text-align: right;
    cursor: pointer;
    transition: border-color 0.2s;
}
.example-prompt-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

.chat-bubble {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    max-width: 85%;
    font-size: 0.95rem;
    line-height: 1.6;
}
.chat-bubble.user {
    background: var(--color-accent);
    color: var(--color-white);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
.chat-bubble.assistant {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
.chat-bubble.assistant p { margin-bottom: 0.5rem; }
.chat-bubble.assistant p:last-child { margin-bottom: 0; }
.chat-bubble.assistant ul, .chat-bubble.assistant ol { padding-left: 1.25rem; margin-bottom: 0.5rem; }
.chat-bubble.assistant li { margin-bottom: 0.2rem; }
.chat-bubble.assistant code {
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    padding: 0.1rem 0.35rem;
    font-family: var(--font-mono);
    font-size: 0.85em;
}

/* Loading indicator */
.chat-bubble.loading { padding: 1rem 1.5rem; }
.loading-dots { display: flex; gap: 4px; }
.loading-dots span {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--color-text-muted);
    animation: bounce 1.2s infinite;
}
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
    40% { transform: translateY(-5px); opacity: 1; }
}

.chat-error {
    color: #f87171;
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
    border: 1px solid #f87171;
    border-radius: var(--radius);
    background: rgba(248, 113, 113, 0.1);
}

.chat-form { display: flex; flex-direction: column; gap: 0.75rem; }
.chat-input {
    width: 100%;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    padding: 0.85rem 1rem;
    font-family: var(--font-base);
    font-size: 0.95rem;
    resize: vertical;
    transition: border-color 0.2s;
}
.chat-input:focus { outline: none; border-color: var(--color-accent); }
.chat-input:disabled { opacity: 0.5; cursor: not-allowed; }

.chat-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.char-count { font-size: 0.78rem; color: var(--color-text-muted); }

/* --------------------------------------------------------------------------
   Placeholder text
   -------------------------------------------------------------------------- */
.placeholder-text { color: var(--color-text-muted); font-size: 0.9rem; font-style: italic; }

/* --------------------------------------------------------------------------
   Legal / Privacy page
   -------------------------------------------------------------------------- */
.legal-section { padding: 4rem 1.5rem 6rem; }

.legal-inner {
    max-width: 780px;
}

.legal-block {
    margin-bottom: 3rem;
}

.legal-block h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border);
}

.legal-block h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 1.25rem 0 0.4rem;
    color: var(--color-text);
}

.legal-block p,
.legal-block li {
    font-size: 0.92rem;
    line-height: 1.75;
    color: var(--color-text-muted);
}

.legal-block ul {
    padding-left: 1.4rem;
    margin: 0.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.legal-block address {
    font-style: normal;
    font-size: 0.92rem;
    line-height: 1.75;
    color: var(--color-text-muted);
    margin: 0.75rem 0 1rem;
}

.legal-block address a,
.legal-block p a,
.legal-block li a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.legal-block address a:hover,
.legal-block p a:hover,
.legal-block li a:hover {
    opacity: 0.8;
}

/* Cookie table */
.legal-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    margin-top: 0.75rem;
    color: var(--color-text-muted);
}
.legal-table th {
    text-align: left;
    font-weight: 600;
    color: var(--color-text);
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid var(--color-border);
    background: var(--color-bg-card);
}
.legal-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}
.legal-table code {
    font-family: var(--font-mono, monospace);
    font-size: 0.83rem;
    background: var(--color-bg-card);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
}

.legal-last-updated {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    opacity: 0.7;
    margin-top: 0.5rem;
}

.legal-back {
    margin-top: 1rem;
    font-size: 0.88rem;
}
.legal-back a {
    color: var(--color-accent);
    text-decoration: none;
}
.legal-back a:hover { text-decoration: underline; }

/* --------------------------------------------------------------------------
   Insights — Case Study Pages (/insights/case-studies/:slug)
   -------------------------------------------------------------------------- */

/* Hero breadcrumb */
.cs-breadcrumb {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: 0.6rem;
}
.cs-breadcrumb a { color: var(--color-text-muted); }
.cs-breadcrumb a:hover { color: var(--color-accent); }
.cs-breadcrumb span { margin-inline: 0.3rem; }

/* Meta row: date + tags */
.cs-meta-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}
.cs-meta-date {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 0.04em;
}
.cs-tag {
    background: rgba(79, 142, 247, 0.1);
    color: var(--color-accent);
    border-radius: 4px;
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
}

/* Two-column layout wrapper */
.cs-layout {
    display: grid;
    grid-template-columns: 1fr;       /* mobile: single column */
    gap: 2rem;
    padding-top: 2.5rem;
    padding-bottom: 4rem;
    padding-inline: 0rem;
    align-items: start;
}

@media (min-width: 900px) {
    .cs-layout {
        grid-template-columns: 400px 1fr;
        gap: 2rem;
    }
}

/* ── Left column: sticky image ── */
.cs-column-left {
    display: none;                     /* hidden on mobile */
}

@media (min-width: 900px) {
    .cs-column-left {
        display: block;
        position: sticky;
        top: calc(var(--nav-h) + 2rem);
        max-height: calc(100vh - var(--nav-h) - 4rem);
        overflow: hidden;
    }
}

.cs-sticky-panel {
    width: 100%;
}

.cs-sticky-figure {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.cs-sticky-img {
    width: 100%;
    /* No forced aspect-ratio — images vary by nature (graph, dashboard, schedule). */
    /* contain shows 100% of the content; background fills the letterbox space.    */
    max-height: calc(100vh - var(--nav-h) - 6rem);
    height: auto;
    object-fit: contain;
    object-position: top center;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: opacity 0.3s ease;
    background: var(--color-bg-card);
}

.cs-sticky-caption {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    font-style: italic;
    line-height: 1.4;
}

/* Placeholder when no image is available */
.cs-sticky-placeholder {
    width: 100%;
    height: 12rem;
    border-radius: var(--radius);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
}

/* ── Right column: narrative ── */
.cs-column-right {
    min-width: 0;                      /* prevent grid blowout */
}

/* ## Group headings */
.cs-group {
    margin-bottom: 2.5rem;
}
.cs-group-heading {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 0.15rem;
    padding-bottom: 0.6rem;
}

/* ── Accordion list ── */
.cs-accordion-list {
    display: flex;
    flex-direction: column;
}

/* ── Individual accordion item ── */
.cs-accordion-item {
    border-top: 1px solid var(--color-border);
}
.cs-accordion-item:last-child {
    border-bottom: 1px solid var(--color-border);
}

/* Header button */
.cs-accordion-header {
    width: 100%;
    background: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 0;
    cursor: pointer;
    text-align: left;
    color: var(--color-text);
    transition: color 0.15s;
}
.cs-accordion-header:hover {
    color: var(--color-white);
}
.cs-accordion-item--open .cs-accordion-header {
    color: var(--color-white);
}

.cs-accordion-heading {
    font-size: 1.0rem;
    font-weight: 600;
    line-height: 1.4;
}

/* Arrow icon */
.cs-accordion-arrow {
    flex-shrink: 0;
    color: var(--color-text-muted);
    transition: transform 0.2s ease, color 0.15s;
}
.cs-accordion-arrow--open {
    transform: rotate(90deg);
    color: var(--color-accent);
}

/* Body: collapsed by default, CSS-driven visible state */
.cs-accordion-body {
    display: none;
    padding-bottom: 1.25rem;
}
.cs-accordion-body--open {
    display: block;
}

/* Inline image (mobile only — hidden on desktop since sticky column handles it) */
.cs-inline-image-wrap {
    margin-bottom: 1rem;
}
.cs-inline-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    background: var(--color-bg-card);
}

@media (min-width: 900px) {
    .cs-inline-image-wrap {
        display: none;
    }
}

/* ── Prose content (rendered markdown HTML) ── */
.cs-prose {
    font-size: 0.93rem;
    line-height: 1.75;
    color: var(--color-text);
}
.cs-prose p {
    margin-bottom: 0.85rem;
}
.cs-prose p:last-child { margin-bottom: 0; }

.cs-prose ul,
.cs-prose ol {
    padding-left: 1.4rem;
    margin-bottom: 0.85rem;
}
.cs-prose ul { list-style: disc; }
.cs-prose ol { list-style: decimal; }
.cs-prose li {
    margin-bottom: 0.3rem;
    font-size: 0.93rem;
    line-height: 1.65;
}

.cs-prose strong { color: var(--color-white); font-weight: 600; }

/* h4 — subheading within prose (#### in markdown) */
.cs-prose h4 {
    font-size: 0.93rem;
    font-weight: 600;
    color: var(--color-white);
    margin: 1.25rem 0 0.4rem;
}

/* h5 — tertiary label within prose (##### in markdown) */
.cs-prose h5 {
    font-size: 0.83rem;
    font-weight: 600;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 1rem 0 0.3rem;
}

/* h6 — deepest label within prose (###### in markdown) */
.cs-prose h6 {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin: 0.75rem 0 0.25rem;
}

.cs-prose code {
    font-family: var(--font-mono);
    font-size: 0.83em;
    background: var(--color-bg-card);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
}

.cs-prose blockquote {
    border-left: 2px solid var(--color-accent);
    padding-left: 1rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin: 1rem 0;
}

/* ── Portfolio card: "Case study →" affordance ── */
.cs-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-top: 0.75rem;
    transition: color 0.15s;
    text-decoration: none;
}
.cs-card-link:hover { color: var(--color-accent-hover); }