:root{--bg-color: #ffffff;--surface-color: #f9f9f9;--text-color: #333333;--heading-color: #111111;--accent-color: #2a9d8f;--accent-hover-color: #264653;--border-color: #e0e0e0;--font-heading: "Montserrat", sans-serif;--font-body: "Roboto", sans-serif;--shadow-light: 0 2px 8px rgba(0, 0, 0, .05);--shadow-medium: 0 4px 12px rgba(0, 0, 0, .08);--border-radius: 8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);font-size:16px;line-height:1.65;background-color:var(--bg-color);color:var(--text-color);display:flex;flex-direction:column;min-height:100vh}.container{width:90%;max-width:1200px;margin-left:auto;margin-right:auto}h1,h2,h3{font-family:var(--font-heading);color:var(--heading-color);line-height:1.3;margin-bottom:.75em;font-weight:700}h1{font-size:2.5rem;letter-spacing:-1px}h2{font-size:2rem}h3{font-size:1.25rem}p{margin-bottom:1.5em}a{color:var(--accent-color);text-decoration:none;transition:color .2s ease-in-out}a:hover,a:focus{color:var(--accent-hover-color);text-decoration:underline}ul,ol{margin-bottom:1.5em;padding-left:1.5em}li{margin-bottom:.5em}.site-header{background-color:var(--bg-color);padding:1.5rem 0;border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100}.site-header .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}.site-title{font-family:var(--font-heading);font-size:1.5rem;font-weight:700;color:var(--heading-color);text-decoration:none}.site-title:hover{color:var(--accent-color)}.main-nav ul{list-style:none;display:flex;gap:2rem;padding:0;margin:0}.main-nav a{font-weight:600;font-size:1rem;color:var(--text-color);padding:.5rem 0;text-decoration:none;border-bottom:2px solid transparent}.main-nav a.active,.main-nav a:hover{color:var(--accent-color);border-bottom-color:var(--accent-color)}.main-layout{display:grid;grid-template-columns:1fr;gap:3rem;padding:3rem 0;flex:1}.hero-section h1{text-align:center}.hero-section .subtitle{font-size:1.2rem;text-align:center;max-width:700px;margin:0 auto 3rem;color:#555}.articles-list h2{text-align:center;margin-bottom:2.5rem}.articles-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}.article-card{border:1px solid var(--border-color);background-color:var(--bg-color);border-radius:var(--border-radius);padding:1.5rem;display:flex;flex-direction:column;box-shadow:var(--shadow-light);transition:transform .2s ease-in-out,box-shadow .2s ease-in-out}.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-medium)}.article-card h3{margin-top:0}.article-card p{flex-grow:1;color:#555}.btn{display:inline-block;font-weight:500;background-color:var(--accent-color);color:#fff;padding:.6rem 1.2rem;border-radius:5px;text-decoration:none;align-self:flex-start;transition:background-color .2s ease-in-out}.btn:hover{background-color:var(--accent-hover-color);color:#fff;text-decoration:none}.article-page-header{border-bottom:1px solid var(--border-color);margin-bottom:2rem;padding-bottom:1rem}.article-page-header h1{margin-bottom:.25rem}.article-meta{font-size:.9rem;color:#777}.article-content h2{margin-top:2.5rem}.callout{background-color:var(--surface-color);border-left:4px solid var(--accent-color);padding:1.5rem;margin:2rem 0;border-radius:0 var(--border-radius) var(--border-radius) 0}.callout p:last-child{margin-bottom:0}.sidebar .widget{border:1px solid var(--border-color);border-radius:var(--border-radius);padding:1.5rem;margin-bottom:2rem;background-color:var(--surface-color)}.sidebar .widget-title{font-size:1.2rem;margin-top:0;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.sidebar .widget-list{list-style:none;padding:0;margin:0}.sidebar .widget-list li{margin-bottom:.75rem}.sidebar .widget-list a{text-decoration:none;color:var(--text-color);font-weight:500}.sidebar .widget-list a:hover{color:var(--accent-color)}.sidebar .widget-promo{background-color:var(--accent-color);color:#fff;border:none}.sidebar .widget-promo .widget-title{color:#fff;border-bottom-color:#ffffff4d}.sidebar .widget-promo p{color:#ffffffe6}.sidebar .widget-promo .btn-promo{background-color:#fff;color:var(--accent-color);font-weight:700}.sidebar .widget-promo .btn-promo:hover{background-color:#f0f0f0}.site-footer{background-color:var(--surface-color);color:#777;padding:2rem 0;text-align:center;margin-top:auto;border-top:1px solid var(--border-color)}.site-footer .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.site-footer a{color:#555;margin:0 .5rem}.site-footer a:hover{color:var(--accent-color)}@media (min-width: 600px){.articles-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 992px){.main-layout{grid-template-columns:3fr 1fr}.articles-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width: 768px){h1{font-size:2rem}h2{font-size:1.75rem}.site-header .container{flex-direction:column;gap:1rem}.main-nav ul{justify-content:center;flex-wrap:wrap}.site-footer .container{flex-direction:column;gap:1rem}}