:root{--green:#087f3f;--dark:#062f25;--soft:#f4faf7;--text:#111827;--muted:#667085;--border:#e5e7eb;--blue:#1d4ed8}
*{box-sizing:border-box} body{margin:0;font-family:Inter,Arial,sans-serif;background:#fbfcfb;color:var(--text)} a{text-decoration:none;color:inherit}
.topbar{background:linear-gradient(90deg,#052e26,#0b3b2d);color:#fff;padding:10px 7%;display:flex;justify-content:space-between;font-size:14px}
.site-header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.06);display:grid;grid-template-columns:240px 1fr 360px;gap:24px;align-items:center;padding:18px 7%}
.brand{display:flex;align-items:center;gap:12px}.brand-icon{width:42px;height:42px;border-radius:12px;background:#e8f7ef;color:var(--green);display:grid;place-items:center;font-weight:900}.brand strong{display:block;font-size:24px;letter-spacing:1px}.brand span{color:var(--green)}.brand small{letter-spacing:5px;font-size:12px;color:#444}
nav{display:flex;gap:28px;align-items:center;font-weight:700;font-size:15px}nav a{padding:8px 0}nav .active{color:var(--green);border-bottom:3px solid var(--green)}
.search{display:flex;align-items:center;background:#f5f6f7;border-radius:12px;padding:0 14px;border:1px solid #eef0f2}.search input{height:48px;border:0;background:transparent;outline:0;width:100%}.menu-btn{display:none}
.hero{min-height:520px;position:relative;background:url('https://images.unsplash.com/photo-1525625293386-3f8f99389edd?auto=format&fit=crop&w=2200&q=85') center/cover no-repeat}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.82) 34%,rgba(255,255,255,.05) 78%)}
.hero-content{position:relative;z-index:1;padding:70px 7%;max-width:760px}.hero h1{font-size:54px;line-height:1.05;margin:0 0 22px}.hero h1 span{color:var(--green)}.hero p{font-size:18px;line-height:1.7;max-width:560px}.hero-actions{display:flex;gap:16px;margin:28px 0}.btn{padding:15px 24px;border-radius:10px;font-weight:800}.primary{background:var(--green);color:#fff}.secondary{background:#fff;border:1px solid var(--green);color:var(--green)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:rgba(255,255,255,.85);border-radius:14px;padding:16px;max-width:700px;box-shadow:0 10px 30px rgba(0,0,0,.08)}.stats div{border-right:1px solid #ddd;padding:0 18px}.stats div:last-child{border-right:0}.stats b{display:block;font-size:20px}.stats small{color:var(--muted)}
.layout{display:grid;grid-template-columns:1fr 330px;gap:28px;padding:34px 7%}.section-head{display:flex;justify-content:space-between;align-items:end;margin-top:34px}.section-head a{color:var(--green);font-weight:800}
h2{font-size:28px;margin:0 0 18px}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.category-card,.guide-card,.newsletter,.tool-card,.chat-panel{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 8px 24px rgba(0,0,0,.04)}
.category-card{padding:24px;transition:.2s}.category-card:hover,.guide-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(0,0,0,.09)}.icon{width:54px;height:54px;display:grid;place-items:center;border-radius:50%;font-size:27px}.green{background:#e7f7ee}.blue{background:#e8f0ff}.purple{background:#f1e8ff}.orange{background:#fff0e6}.category-card p{color:var(--muted);line-height:1.55}.category-card a{color:var(--green);font-weight:800}
.guides-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.guide-card{overflow:hidden;display:block}.guide-card img{width:100%;height:170px;object-fit:cover}.guide-body{padding:18px}.badge{display:inline-block;background:var(--green);color:#fff;font-size:12px;font-weight:900;border-radius:999px;padding:6px 10px;text-transform:uppercase}.guide-body h3{font-size:20px;margin:12px 0 8px}.guide-body p{color:var(--muted);line-height:1.5}.meta{display:flex;justify-content:space-between;color:#777;font-size:14px}
.sidebar{display:flex;flex-direction:column;gap:20px}.newsletter{padding:24px;background:linear-gradient(135deg,#f2fbf6,#fff)}.newsletter form{display:flex;margin:18px 0}.newsletter input{flex:1;border:1px solid var(--border);border-radius:9px 0 0 9px;padding:13px}.newsletter button{border:0;background:var(--green);color:#fff;border-radius:0 9px 9px 0;padding:0 16px;font-weight:800}.checks{font-size:13px;color:#177a45}.mail-icon{font-size:36px}
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.tool-card{padding:22px}.tool-card p{color:var(--muted)}
.chat-panel{overflow:hidden}.chat-title{background:var(--green);color:#fff;padding:14px 16px;font-weight:900}.chat-title span{font-size:12px;font-weight:400}.chat-messages{height:190px;overflow:auto;padding:14px;background:#fbfbfb}.bot,.user{padding:12px;border-radius:12px;margin-bottom:10px;font-size:14px;line-height:1.45}.bot{background:#fff;border:1px solid var(--border)}.user{background:var(--green);color:#fff;margin-left:auto;width:fit-content;max-width:90%}.quick-questions{display:grid;gap:8px;padding:0 14px 12px}.quick-questions button{border:1px solid #8bcba9;background:#fff;color:var(--green);border-radius:8px;padding:8px;cursor:pointer}.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border)}.chat-form input{flex:1;border:1px solid var(--border);border-radius:9px;padding:12px}.chat-form button{border:0;background:var(--green);color:#fff;border-radius:9px;padding:0 14px}
.about{padding:50px 7%;background:#f2faf6}.about p{max-width:900px;line-height:1.8;color:#475467}footer{background:#062f25;color:#fff;padding:40px 7%;display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}footer a{display:block;color:#d6e9df;margin:8px 0}.floating-chat{display:none;position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:var(--green);color:#fff;border:0;font-size:24px;box-shadow:0 10px 30px rgba(0,0,0,.25);z-index:60}.mobile-chat{display:none}
.article-page{background:#fff}.article-hero{padding:70px 7%;background:linear-gradient(90deg,rgba(6,47,37,.85),rgba(8,127,63,.5)),var(--img) center/cover;color:#fff}.article-hero h1{font-size:48px;max-width:900px}.article-wrap{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:44px 7%}.article-content{font-size:18px;line-height:1.85}.article-content p{margin-bottom:22px}.related-box{background:#f2faf6;border-radius:16px;padding:22px;height:max-content}.back-link{color:var(--green);font-weight:800}
@media(max-width:1050px){.site-header{grid-template-columns:1fr auto}.search{display:none}.menu-btn{display:block;background:#f1f5f2;border:0;border-radius:8px;padding:10px}nav{display:none;grid-column:1/-1;flex-direction:column;align-items:flex-start}nav.open{display:flex}.layout{grid-template-columns:1fr}.sidebar{display:none}.category-grid{grid-template-columns:repeat(2,1fr)}.guides-grid{grid-template-columns:repeat(2,1fr)}.tools-grid{grid-template-columns:repeat(2,1fr)}.floating-chat{display:block}.mobile-chat{position:fixed;right:14px;bottom:88px;width:calc(100% - 28px);max-width:370px;background:#fff;border-radius:16px;box-shadow:0 15px 40px rgba(0,0,0,.25);overflow:hidden;z-index:70}.mobile-chat.open{display:block}.article-wrap{grid-template-columns:1fr}.article-hero h1{font-size:36px}}
@media(max-width:650px){.topbar{font-size:12px;gap:10px}.brand strong{font-size:18px}.hero{min-height:560px}.hero-content{padding:45px 20px}.hero h1{font-size:38px}.hero-overlay{background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(255,255,255,.68))}.hero-actions{flex-direction:column}.stats{grid-template-columns:repeat(2,1fr)}.stats div{border-right:0;border-bottom:1px solid #ddd;padding:12px}.layout{padding:28px 20px}.category-grid,.guides-grid,.tools-grid{grid-template-columns:1fr}.site-header{padding:14px 20px}footer{grid-template-columns:1fr}.article-hero{padding:48px 20px}.article-wrap{padding:28px 20px}.article-content{font-size:16px}}