@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Poppins:wght@400;500;600;700;800&display=swap");:root{--color-primary: #023047;--color-accent: #219EBC;--color-secondary: #8ECAE6;--color-warm: #FB8500;--color-amber: #FFB703;--color-bg: #FFFFFF;--color-bg-alt: #F6F8FA;--color-surface: #FFFFFF;--color-border: #E5EAF0;--color-text: #0F1A24;--color-text-muted: #5A6770;--color-text-inv: #FFFFFF;--font-heading: 'Poppins', system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;--font-body: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(15, 26, 36, 0.04), 0 1px 3px rgba(15, 26, 36, 0.06);--shadow-md: 0 4px 10px rgba(15, 26, 36, 0.06), 0 2px 4px rgba(15, 26, 36, 0.04);--shadow-lg: 0 10px 30px rgba(15, 26, 36, 0.08), 0 4px 10px rgba(15, 26, 36, 0.04)}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-body);font-size:17px;line-height:1.65;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--color-accent);text-decoration:none;transition:color 0.15s ease}a:hover{color:var(--color-warm)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--color-primary);line-height:1.25;margin:1.8em 0 0.6em;font-weight:700}h1{font-size:2.4rem}h2{font-size:1.75rem}h3{font-size:1.3rem}h4{font-size:1.1rem}p{margin:1em 0}img{max-width:100%;height:auto;border-radius:var(--radius-md)}hr{border:none;border-top:1px solid var(--color-border);margin:2rem 0}code{font-family:"SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;font-size:0.92em;background:var(--color-bg-alt);padding:0.15em 0.4em;border-radius:4px}pre code{background:transparent;padding:0}pre{background:var(--color-bg-alt);padding:1em 1.2em;border-radius:var(--radius-md);overflow-x:auto;border:1px solid var(--color-border)}blockquote{border-left:4px solid var(--color-secondary);margin:1.5em 0;padding:0.2em 1.2em;color:var(--color-text-muted);background:var(--color-bg-alt);border-radius:0 var(--radius-md) var(--radius-md) 0}.container{max-width:1280px;margin:0 auto;padding:0 24px}.container-narrow{max-width:760px;margin:0 auto;padding:0 24px}.site-nav{position:sticky;top:0;background:rgba(255,255,255,0.92);backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--color-border);z-index:50}.site-nav__inner{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1280px;margin:0 auto}.site-nav__home{font-family:var(--font-heading);font-weight:600;color:var(--color-primary);font-size:0.98rem;letter-spacing:0.01em;display:inline-flex;align-items:center;gap:6px}.site-nav__home::before{content:"";width:14px;height:14px;display:inline-block;background:var(--color-accent);-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><path d='M3 11l9-8 9 8'/><path d='M5 10v10h14V10'/></svg>") center/contain no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><path d='M3 11l9-8 9 8'/><path d='M5 10v10h14V10'/></svg>") center/contain no-repeat}.site-nav__home:hover{color:var(--color-accent)}.hero{position:relative;background-color:var(--color-primary);background-size:cover;background-position:center;color:var(--color-text-inv);padding:96px 24px 80px;overflow:hidden}.hero__overlay{position:absolute;inset:0;background:linear-gradient(180deg, rgba(2,48,71,0.28) 0%, rgba(2,48,71,0.52) 100%);pointer-events:none}.hero__inner{position:relative;max-width:1280px;margin:0 auto}.hero__lead a{color:var(--color-secondary);text-decoration:underline;text-decoration-color:rgba(255,255,255,0.35)}.hero__lead a:hover{color:var(--color-text-inv);text-decoration-color:var(--color-text-inv)}.hero__greeting{font-size:0.95rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--color-secondary);margin-bottom:12px}.hero h1{color:var(--color-text-inv);font-size:clamp(2.2rem, 4.5vw, 3.4rem);margin:0 0 14px;font-weight:700;letter-spacing:-0.02em}.hero h1 .accent{color:var(--color-secondary)}.hero__lead{font-size:1.15rem;max-width:720px;color:rgba(255,255,255,0.88);margin:0 0 28px}.hero__links{display:flex;flex-wrap:wrap;gap:10px}.hero__link{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;background:rgba(255,255,255,0.12);color:var(--color-text-inv);font-weight:500;font-size:0.92rem;border:1px solid rgba(255,255,255,0.2);transition:background 0.18s ease, transform 0.18s ease, border-color 0.18s ease}.hero__link:hover{background:rgba(255,255,255,0.2);color:var(--color-text-inv);transform:translateY(-1px);border-color:rgba(255,255,255,0.4)}.post-hero{position:relative;background-color:var(--color-primary);background-size:cover;background-position:center;color:var(--color-text-inv);padding:100px 24px 70px;overflow:hidden}.post-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(2,48,71,0.28) 0%, rgba(2,48,71,0.52) 100%);pointer-events:none}.post-hero__inner{position:relative;z-index:1;max-width:900px;margin:0 auto}.post-hero h1{color:var(--color-text-inv);font-size:clamp(2rem, 4vw, 2.8rem);margin:0 0 14px;letter-spacing:-0.01em}.post-hero__subtitle{font-size:1.1rem;color:rgba(255,255,255,0.86);margin:0 0 18px;max-width:720px}.post-hero__meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:0.9rem;color:var(--color-text-inv)}.post-hero__meta a{color:var(--color-text-inv)}.post-hero__meta a:hover{color:var(--color-text-inv);text-decoration:underline}.home-grid{display:grid;grid-template-columns:1fr;gap:32px;margin:40px 0 60px}@media (min-width: 900px){.home-grid{grid-template-columns:240px 1fr;gap:40px}}.sidebar{display:flex;flex-direction:column;gap:22px;align-self:start}@media (min-width: 900px){.sidebar{position:sticky;top:24px}}.sidebar__intro h2{font-size:1.35rem;margin:0 0 8px;color:var(--color-primary)}.sidebar__intro p{color:var(--color-text-muted);font-size:0.92rem;margin:0;line-height:1.55}.sidebar__group{display:flex;flex-direction:column;gap:6px}.sidebar__label{font-size:0.72rem;text-transform:uppercase;letter-spacing:0.12em;color:var(--color-text-muted);font-weight:600}.sidebar__radios{display:flex;flex-direction:column;gap:4px;margin-top:2px}.sidebar__radios label{display:flex;align-items:center;gap:8px;font-size:0.93rem;color:var(--color-text);cursor:pointer;padding:2px 0}.sidebar__radios input[type="radio"]{accent-color:var(--color-accent);width:14px;height:14px;margin:0}.sidebar__radios label:hover{color:var(--color-accent)}#search-input,#year-select,#tag-select{width:100%;padding:8px 10px;font:inherit;font-size:0.92rem;color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);transition:border-color 0.15s ease, box-shadow 0.15s ease}#search-input:focus,#year-select:focus,#tag-select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(33,158,188,0.15)}#year-select,#tag-select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%235A6770' stroke-width='2'><path d='M1 1.5L6 6.5L11 1.5'/></svg>");background-repeat:no-repeat;background-position:right 10px center;background-size:10px;padding-right:28px}.sidebar__reset{align-self:flex-start;margin-top:4px;background:transparent;color:var(--color-accent);border:1px solid var(--color-accent);border-radius:999px;padding:6px 14px;font-size:0.82rem;font-family:inherit;cursor:pointer;transition:all 0.15s ease}.sidebar__reset:hover{background:var(--color-accent);color:var(--color-text-inv)}.main-col{min-width:0}.article-grid__empty{color:var(--color-text-muted);padding:40px 0;text-align:center;font-size:0.95rem}.tag-chip{display:inline-block;padding:3px 10px;border-radius:999px;background:rgba(33,158,188,0.1);color:var(--color-accent);font-size:0.76rem;font-weight:500;margin-right:4px;margin-bottom:4px;border:1px solid rgba(33,158,188,0.22)}.article-grid{display:grid;grid-template-columns:1fr;gap:20px}@media (min-width: 600px){.article-grid{grid-template-columns:repeat(2, 1fr);gap:22px}}@media (min-width: 900px){.article-grid{grid-template-columns:repeat(3, 1fr)}}.article-card{display:flex;flex-direction:column;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;transition:transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease}.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--color-secondary)}.article-card__thumb{aspect-ratio:16 / 9;background-color:var(--color-bg-alt);background-size:cover;background-position:center;border-bottom:1px solid var(--color-border)}.article-card__body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}.article-card__date{font-size:0.8rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:8px}.article-card__title{font-family:var(--font-heading);color:var(--color-primary);font-size:1.15rem;font-weight:600;line-height:1.35;margin:0 0 8px}.article-card__title a{color:inherit}.article-card__title a:hover{color:var(--color-accent)}.article-card__excerpt{font-size:0.95rem;color:var(--color-text-muted);margin:0 0 14px;flex:1}.article-card__tags{margin-top:auto}.post-body{max-width:900px;margin:50px auto 80px;padding:0 24px;font-size:1.05rem}.post-body p,.post-body ul,.post-body ol{color:var(--color-text)}.post-body figure{margin:1.6em 0;text-align:center}.post-body figure img{border:1px solid var(--color-border)}.post-body figcaption{font-size:0.9rem;color:var(--color-text-muted);margin-top:8px;font-style:italic}.post-body .equation{background:var(--color-bg-alt);padding:18px 20px;border-radius:var(--radius-md);border-left:3px solid var(--color-accent);margin:1.4em 0;font-size:1.05rem;overflow-x:auto}.post-body .mjx-chtml{font-size:115% !important}.linkedin-cards{display:grid;grid-template-columns:1fr;gap:16px;margin:1.8em 0;not-prose:true}@media (min-width: 600px){.linkedin-cards{grid-template-columns:repeat(2, 1fr);gap:18px}}@media (min-width: 900px){.linkedin-cards{grid-template-columns:repeat(3, 1fr)}}@media (min-width: 1100px){.linkedin-cards{grid-template-columns:repeat(4, 1fr)}}.media-row{display:grid;grid-template-columns:1fr;gap:18px;margin:1.8em 0;align-items:stretch}@media (min-width: 700px){.media-row{grid-template-columns:1fr 1fr}}.media-row__video{position:relative;width:100%;aspect-ratio:16 / 9;background:var(--color-bg-alt);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--color-border)}.media-row__video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.media-row__card{margin:0}.li-card{display:flex;flex-direction:column;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;text-decoration:none;color:inherit;transition:transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease}.li-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--color-secondary);color:inherit}.li-card__img{aspect-ratio:4 / 3;background-color:var(--color-bg-alt);background-size:cover;background-position:center;border-bottom:1px solid var(--color-border)}.li-card__body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:4px;flex:1}.li-card__head{display:flex;align-items:center;gap:8px;margin-bottom:2px}.li-card__logo{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;background:#0a66c2;color:#fff;font-family:var(--font-heading);font-weight:800;font-size:0.72rem;border-radius:3px;letter-spacing:-0.02em}.li-card__company{font-size:0.78rem;color:var(--color-text-muted);font-weight:500}.li-card__title{font-family:var(--font-heading);font-weight:600;font-size:0.98rem;color:var(--color-primary);margin:0;line-height:1.3}.li-card__desc{font-size:0.86rem;color:var(--color-text-muted);margin:0;line-height:1.45}.post-footer{max-width:760px;margin:60px auto;padding:28px 24px;border-top:1px solid var(--color-border);color:var(--color-text-muted);font-size:0.92rem}.post-footer a{font-weight:500}.back-link{display:inline-flex;align-items:center;gap:6px;margin:20px 0;color:var(--color-accent);font-weight:500}.home-section{margin:50px 0}.home-section h2{font-size:1.4rem;color:var(--color-primary);margin-bottom:6px}.home-section__desc{color:var(--color-text-muted);margin-top:0;margin-bottom:20px}.site-footer{background:var(--color-primary);color:rgba(255,255,255,0.78);padding:36px 24px;margin-top:60px}.site-footer__inner{max-width:1280px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;align-items:center}.site-footer a{color:var(--color-secondary)}.site-footer a:hover{color:var(--color-amber)}.site-footer__brand{font-family:var(--font-heading);font-weight:600;color:var(--color-text-inv)}.site-footer__links{display:flex;gap:18px;flex-wrap:wrap;font-size:0.92rem}.is-hidden{display:none !important}.lightbox{position:fixed;inset:0;background:rgba(0,0,0,0.88);z-index:1000;display:flex;align-items:center;justify-content:center;padding:32px;cursor:zoom-out}.lightbox[hidden]{display:none}.lightbox img{max-width:100%;max-height:100%;object-fit:contain;border-radius:var(--radius-md);box-shadow:0 10px 40px rgba(0,0,0,0.6)}@media (max-width: 700px){.site-nav__inner{padding:12px 18px}.hero{padding:60px 24px 56px}.post-hero{padding:80px 24px 56px}.post-body{font-size:1rem}}