/* ============================================================
   KinTech Founder Series — Blog
   Brand palette + animated, engaging design
   ============================================================ */

:root {
    --primary: #264653;
    --primary-dark: #1b343d;
    --secondary: #2A9D8F;
    --secondary-dark: #238276;
    --accent: #F4A261;
    --accent-dark: #e08a45;
    --kin-gold: #F4A261;
    --ink: #2b2b2b;
    --muted: #6b7280;
    --line: #e6e7eb;
    --bg-soft: #f7f5f1;
    --bg-card: #ffffff;

    --track-biz: #2A9D8F;
    --track-biz-soft: #e6f5f2;
    --track-prod: #F4A261;
    --track-prod-soft: #fdf0e0;
    --track-tech: #264653;
    --track-tech-soft: #dfe7ea;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--ink);
    background: #fff;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--secondary); }
a:hover { color: var(--secondary-dark); }

/* ============================================================
   Top nav (Founder Series style, matches site)
   ============================================================ */

.fs-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.fs-nav .fs-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.fs-nav .logo {
    font-family: 'Montserrat', 'Inter', sans-serif;
    font-weight: 800;
    font-size: 1.05rem;
    color: #fff;
    text-decoration: none;
    letter-spacing: 0.2px;
}
.fs-nav .logo .kin { color: var(--accent); }
.fs-nav .logo .tm { font-size: 0.6em; vertical-align: super; opacity: 0.85; }

.fs-nav-links {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.fs-nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 4px 0;
}

.fs-nav-links a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 0; height: 2px;
    background: var(--accent);
    transition: width 0.25s ease;
}
.fs-nav-links a:hover::after,
.fs-nav-links a.active::after { width: 100%; }

.fs-nav-links a.active { color: var(--accent); }

.fs-nav-links .cta {
    background: var(--secondary);
    color: #fff;
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 600;
    transition: background 0.2s, transform 0.2s;
}
.fs-nav-links .cta::after { display: none; }
.fs-nav-links .cta:hover { background: var(--secondary-dark); transform: translateY(-1px); }

@media (max-width: 720px) {
    .fs-nav-links { gap: 0.9rem; font-size: 0.85rem; }
    .fs-nav-links a:not(.cta) { display: none; }
    .fs-nav-links a.cta { padding: 6px 14px; font-size: 0.85rem; }
}

/* ============================================================
   Reading progress bar (post pages)
   ============================================================ */

.reading-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--secondary));
    width: 0;
    z-index: 100;
    transition: width 0.05s linear;
}

/* ============================================================
   Hero (blog index)
   ============================================================ */

.blog-hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #142732 100%);
    color: #fff;
    padding: 96px 24px 88px;
    text-align: center;
}

.blog-hero::before,
.blog-hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.55;
    pointer-events: none;
}
.blog-hero::before {
    width: 420px; height: 420px;
    background: var(--secondary);
    top: -120px; left: -80px;
    animation: float-a 14s ease-in-out infinite;
}
.blog-hero::after {
    width: 380px; height: 380px;
    background: var(--accent);
    bottom: -140px; right: -100px;
    animation: float-b 18s ease-in-out infinite;
}

@keyframes float-a {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(40px, 30px) scale(1.08); }
}
@keyframes float-b {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(-30px, -20px) scale(1.1); }
}

.blog-hero .hero-inner {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 auto;
}

.blog-hero .eyebrow {
    display: inline-block;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    padding: 6px 14px;
    border: 1px solid rgba(244, 162, 97, 0.55);
    border-radius: 999px;
    margin-bottom: 22px;
    animation: fade-up 0.6s ease 0.05s both;
}

.blog-hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(2rem, 4.4vw, 3rem);
    line-height: 1.15;
    margin: 0 0 16px;
    letter-spacing: -0.5px;
    animation: fade-up 0.7s ease 0.15s both;
}
.blog-hero h1 .accent { color: var(--accent); }
.blog-hero h1 .trades { color: #fff; }

.blog-hero p {
    font-size: 1.08rem;
    opacity: 0.92;
    margin: 0 auto;
    max-width: 620px;
    animation: fade-up 0.7s ease 0.25s both;
}

.blog-hero .scroll-cue {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 36px;
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.75);
    animation: fade-up 0.7s ease 0.4s both;
}
.blog-hero .scroll-cue .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.6); opacity: 0.5; }
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Blog index — track sections & cards
   ============================================================ */

.blog-list {
    max-width: 1000px;
    margin: 0 auto;
    padding: 72px 24px 96px;
}

.track-block {
    margin-bottom: 64px;
}

.track-heading {
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin: 0 0 28px;
}

.track-heading .swatch {
    width: 36px; height: 4px;
    border-radius: 4px;
    background: var(--track-biz);
}
.track-block.biz   .track-heading .swatch { background: var(--track-biz); }
.track-block.prod  .track-heading .swatch { background: var(--track-prod); }
.track-block.tech  .track-heading .swatch { background: var(--track-tech); }

.track-heading .count {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 1px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.blog-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 28px 26px 24px;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    opacity: 0;
    transform: translateY(20px);
}

.blog-card[data-status="draft"] { display: none; }

.coming-next {
    margin-top: 16px;
    padding: 36px 32px;
    border: 1px dashed var(--line);
    border-radius: 16px;
    background: var(--bg-soft);
}
.coming-next-inner { max-width: 720px; }
.coming-next .eyebrow {
    display: inline-block;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--secondary);
    margin-bottom: 12px;
}
.coming-next h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.35rem;
    margin: 0 0 12px;
    color: var(--primary);
}
.coming-next .phase-dates {
    font-weight: 500;
    color: var(--muted);
    font-size: 1rem;
}
.coming-next p {
    margin: 0 0 8px;
    color: var(--ink);
}
.coming-next .coming-next-meta {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 12px;
}
.blog-card.in-view {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--track-biz);
    transition: width 0.25s ease;
}
.blog-card.biz::before  { background: var(--track-biz); }
.blog-card.prod::before { background: var(--track-prod); }
.blog-card.tech::before { background: var(--track-tech); }

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 40px -18px rgba(38, 70, 83, 0.35);
    border-color: transparent;
}
.blog-card:hover::before { width: 6px; }

.blog-card .series-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 14px;
}
.blog-card.biz  .series-label { background: var(--track-biz-soft);  color: var(--track-biz); }
.blog-card.prod .series-label { background: var(--track-prod-soft); color: var(--accent-dark); }
.blog-card.tech .series-label { background: var(--track-tech-soft); color: var(--track-tech); }

.blog-card h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.18rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 10px;
    color: var(--primary);
}

.blog-card .meta {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 12px;
}

.blog-card p {
    font-size: 0.93rem;
    color: #424b54;
    line-height: 1.6;
    margin: 0 0 18px;
}

.blog-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.blog-card .tag {
    font-size: 0.72rem;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 999px;
    background: #f1f3f5;
    color: var(--muted);
}

.blog-card .read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--secondary);
}
.blog-card .read-more .arrow { transition: transform 0.2s ease; }
.blog-card:hover .read-more .arrow { transform: translateX(4px); }

/* ============================================================
   Individual post page
   ============================================================ */

.blog-post {
    max-width: 740px;
    margin: 0 auto;
    padding: 56px 24px 96px;
}

.post-header {
    margin-bottom: 48px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--secondary);
    text-decoration: none;
    margin-bottom: 22px;
    font-weight: 600;
    transition: color 0.2s ease, transform 0.2s ease;
}
.back-link:hover { color: var(--secondary-dark); transform: translateX(-3px); }

.series-label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 14px;
}
.series-label.biz  { background: var(--track-biz-soft);  color: var(--track-biz); }
.series-label.prod { background: var(--track-prod-soft); color: var(--accent-dark); }
.series-label.tech { background: var(--track-tech-soft); color: var(--track-tech); }

.post-header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.8rem, 3.6vw, 2.4rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 12px;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.post-header .meta {
    font-size: 0.9rem;
    color: var(--muted);
}

/* ============================================================
   Author byline (under post header)
   ============================================================ */

.author-byline {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    margin-bottom: 40px;
}

.author-byline .author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent);
    flex-shrink: 0;
}

.author-byline .author-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.author-byline .author-name {
    font-weight: 700;
    color: var(--primary);
    font-size: 0.95rem;
}

.author-byline .author-role {
    font-size: 0.82rem;
    color: var(--muted);
}

.author-byline .read-time {
    margin-left: auto;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--secondary);
    background: var(--track-biz-soft);
    padding: 4px 12px;
    border-radius: 999px;
    white-space: nowrap;
}

@media (max-width: 520px) {
    .author-byline .read-time {
        margin-left: 0;
        margin-top: 6px;
    }
    .author-byline { flex-wrap: wrap; }
}

/* ============================================================
   Key takeaways box (top of each post)
   ============================================================ */

.key-takeaways {
    background: linear-gradient(135deg, var(--bg-soft) 0%, #fef9f2 100%);
    border-left: 4px solid var(--accent);
    border-radius: 0 12px 12px 0;
    padding: 22px 26px 18px;
    margin: 0 0 40px;
}

.key-takeaways h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.8px;
    color: var(--accent-dark);
    margin: 0 0 12px;
}

.key-takeaways ul {
    margin: 0;
    padding-left: 18px;
}

.key-takeaways li {
    font-size: 0.95rem;
    color: var(--primary);
    margin-bottom: 7px;
    line-height: 1.55;
}
.key-takeaways li:last-child { margin-bottom: 0; }
.key-takeaways li::marker { color: var(--accent); }

/* ============================================================
   Pull quote (within posts)
   ============================================================ */

.pull-quote {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--primary);
    border-left: 4px solid var(--secondary);
    padding: 8px 0 8px 22px;
    margin: 36px 0;
    letter-spacing: -0.3px;
}

@media (max-width: 600px) {
    .pull-quote { font-size: 1.18rem; padding-left: 16px; }
}

/* ============================================================
   "What we'd do differently" callout
   ============================================================ */

.honest-note {
    background: #fff8f0;
    border: 1px solid #f1d9b8;
    border-radius: 12px;
    padding: 18px 22px;
    margin: 32px 0;
}

.honest-note h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.6px;
    color: var(--accent-dark);
    margin: 0 0 8px;
}

.honest-note p {
    margin: 0;
    font-size: 0.95rem;
    color: #4a5057;
    line-height: 1.6;
}

/* ============================================================
   Author footer (bottom of each post)
   ============================================================ */

.author-footer {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    background: var(--bg-soft);
    border-radius: 14px;
    padding: 22px 24px;
    margin: 48px 0 0;
}

.author-footer .footer-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent);
    flex-shrink: 0;
}

.author-footer .footer-bio {
    flex: 1;
    min-width: 0;
}

.author-footer .footer-name {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--primary);
    font-size: 1rem;
    margin: 0 0 4px;
}

.author-footer .footer-text {
    font-size: 0.9rem;
    color: #4a5057;
    line-height: 1.55;
    margin: 0;
}

.author-footer .footer-text a {
    font-weight: 600;
}

@media (max-width: 520px) {
    .author-footer { flex-direction: column; align-items: center; text-align: center; }
}

/* ============================================================
   Timeline strip (blog index)
   ============================================================ */

.series-timeline {
    max-width: 1000px;
    margin: -32px auto 0;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.timeline-inner {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 22px 28px;
    box-shadow: 0 12px 30px -18px rgba(38, 70, 83, 0.25);
}

.timeline-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--muted);
    margin: 0 0 18px;
    text-align: center;
}

.timeline-rail {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    position: relative;
}

.timeline-rail::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 7%;
    right: 7%;
    height: 2px;
    background: linear-gradient(90deg, var(--track-biz), var(--track-prod), var(--track-tech));
    opacity: 0.35;
    z-index: 0;
}

.timeline-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.timeline-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--accent);
    margin: 0 auto 10px;
    box-shadow: 0 2px 6px rgba(38, 70, 83, 0.15);
}

.timeline-month {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 2px;
}

.timeline-label {
    font-size: 0.72rem;
    color: var(--muted);
    line-height: 1.3;
}

@media (max-width: 900px) {
    .timeline-rail { grid-template-columns: repeat(4, 1fr); row-gap: 24px; }
    .timeline-rail::before { display: none; }
}

@media (max-width: 600px) {
    .series-timeline { margin-top: -24px; padding: 0 18px; }
    .timeline-inner { padding: 18px 14px; }
    .timeline-rail { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .timeline-label { font-size: 0.72rem; }
    .timeline-month { font-size: 0.72rem; }
}

/* Reading time pill on index cards */
.blog-card .read-time-pill {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
    margin-left: 8px;
}

.post-body section {
    margin-bottom: 36px;
}

.post-body h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0 0 12px;
    color: var(--primary);
    position: relative;
    padding-left: 14px;
}
.post-body h2::before {
    content: '';
    position: absolute;
    left: 0; top: 0.35em;
    width: 4px; height: 0.85em;
    background: var(--accent);
    border-radius: 2px;
}

.post-body p {
    font-size: 1rem;
    color: #3a3f44;
    margin: 0 0 16px;
}

.post-body ul {
    margin: 0 0 16px 0;
    padding-left: 20px;
}
.post-body li {
    font-size: 1rem;
    color: #3a3f44;
    margin-bottom: 8px;
    line-height: 1.65;
}
.post-body li strong { color: var(--primary); }

.post-body code {
    background: var(--bg-soft);
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 0.88em;
    color: var(--accent-dark);
    font-family: 'SFMono-Regular', Menlo, Consolas, monospace;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid var(--line);
    padding-top: 28px;
    margin-top: 56px;
}

.post-nav a {
    font-size: 0.9rem;
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease, transform 0.2s ease;
}
.post-nav a:hover { color: var(--secondary-dark); }
.post-nav a.prev:hover { transform: translateX(-3px); }
.post-nav a.next:hover { transform: translateX(3px); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 600px) {
    .blog-hero { padding: 64px 20px 60px; }
    .blog-list { padding: 48px 18px 72px; }
    .blog-post { padding: 36px 18px 72px; }
    .post-header h1 { font-size: 1.65rem; }
    .post-body h2 { font-size: 1.2rem; }
    .post-nav { flex-direction: column; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .blog-card { opacity: 1; transform: none; }
}