:root{--arduino-teal:#00979d;--arduino-teal-dark:#008184;--arduino-teal-light:#e6f5f6;--arduino-teal-hover:#00b3ba;--dark-bg:#232b2b;--charcoal:#3b4244;--body-text:#434f54;--text-dark:#2c3e50;--light-gray:#f1f5f7;--border-color:#e1e8eb;--pro-green:#9c3;--edu-orange:#e47128;--maker-blue:#00718f;--font-sans:"Open Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"Roboto Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--body-text);-webkit-font-smoothing:antialiased;background-color:#fff;line-height:1.6}a{color:var(--arduino-teal);text-decoration:none;transition:color .2s}a:hover{color:var(--arduino-teal-dark)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.btn{text-transform:uppercase;letter-spacing:.8px;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;padding:10px 24px;font-size:.85rem;font-weight:700;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--arduino-teal);color:#fff;border:2px solid var(--arduino-teal)}.btn-primary:hover{background-color:var(--arduino-teal-hover);border-color:var(--arduino-teal-hover);color:#fff}.btn-secondary{color:#fff;background-color:#0000;border:2px solid #fff}.btn-secondary:hover{color:var(--arduino-teal-dark);background-color:#fff}.btn-teal{background-color:var(--arduino-teal);color:#fff;border:2px solid var(--arduino-teal)}.btn-teal:hover{background-color:var(--arduino-teal-dark);border-color:var(--arduino-teal-dark);color:#fff}.btn-outline{color:var(--arduino-teal);border:2px solid var(--arduino-teal);background-color:#0000}.btn-outline:hover{background-color:var(--arduino-teal-light)}.btn-shop{color:var(--arduino-teal);border:1px solid var(--border-color);background-color:#fff;padding:6px 16px;font-size:.8rem}.btn-shop:hover{background-color:var(--light-gray);color:var(--arduino-teal-dark)}.top-bar{background-color:var(--dark-bg);border-bottom:1px solid #ffffff1a;padding:8px 0;font-size:.75rem}.top-bar-container{justify-content:space-between;align-items:center;display:flex}.top-bar-links a{color:#a5b1b2;text-transform:uppercase;letter-spacing:.5px;margin-right:20px;font-weight:600}.top-bar-links a.active,.top-bar-links a:hover{color:#fff}.top-bar-lang{color:#a5b1b2;font-weight:600}.top-bar-lang span{cursor:pointer;margin:0 4px}.top-bar-lang span:hover{color:#fff}.disclaimer-badge{background-color:var(--edu-orange);color:#fff;border-radius:4px;margin-right:10px;padding:2px 8px;font-size:.7rem;font-weight:700}.disclaimer-text{color:#a5b1b2;font-weight:600}.main-header{background-color:var(--arduino-teal);z-index:1000;padding:15px 0;position:sticky;top:0;box-shadow:0 2px 10px #0000001a}.header-container{justify-content:space-between;align-items:center;display:flex}.logo{color:#fff;align-items:center;gap:12px;display:flex}.logo:hover{color:#fff}.logo-svg{width:32px;height:32px}.logo-text{font-family:var(--font-mono);letter-spacing:.5px;font-size:1.25rem;font-weight:700}.th-suffix{opacity:.85;font-size:.95rem;font-weight:300}.nav-menu ul{gap:20px;list-style:none;display:flex}.nav-item{color:#fff;padding:6px 4px;font-size:.9rem;font-weight:700}.nav-item:hover{color:#fffc}.header-controls{align-items:center;gap:12px;display:flex}.icon-btn{color:#fff;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:8px;transition:transform .2s;display:flex}.icon-btn:hover{transform:scale(1.1)}.menu-toggle{cursor:pointer;background:0 0;border:none;flex-direction:column;justify-content:space-between;width:24px;height:18px;display:none}.menu-toggle span{background-color:#fff;width:100%;height:2px;transition:all .3s}.hero-banner{background:linear-gradient(135deg, var(--arduino-teal) 0%, var(--arduino-teal-dark) 100%);color:#fff;padding:80px 0;overflow:hidden}.hero-container{justify-content:space-between;align-items:center;gap:40px;display:flex}.hero-text-content{flex:1;max-width:600px}.hero-title{margin-bottom:20px;font-size:3rem;font-weight:800;line-height:1.2}.hero-desc{opacity:.9;margin-bottom:35px;font-size:1.15rem;line-height:1.6}.hero-actions{flex-wrap:wrap;gap:15px;display:flex}.hero-image-content{flex:1;justify-content:center;display:flex}.hero-board-img{border-radius:12px;max-width:100%;height:auto;box-shadow:0 20px 40px #0003}.categories-section{background-color:var(--light-gray);padding:80px 0}.section-header{text-align:center;margin-bottom:50px}.section-title{color:var(--text-dark);margin-bottom:10px;font-size:2.2rem;font-weight:700}.section-subtitle{color:var(--body-text);font-size:1.1rem}.grid{gap:30px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background-color:#fff;border-radius:8px;flex-direction:column;transition:all .3s cubic-bezier(.25,.8,.25,1);display:flex;overflow:hidden;box-shadow:0 4px 15px #0000000d}.card:hover{transform:translateY(-8px);box-shadow:0 15px 30px #0000001a}.card-image-container{height:200px;position:relative;overflow:hidden}.card-img{object-fit:cover;width:100%;height:100%;transition:transform .5s}.card:hover .card-img{transform:scale(1.05)}.teal-bg{background-color:var(--arduino-teal-light)}.blue-bg{background-color:#e6f2f5}.orange-bg{background-color:#fdf1e9}.card-body{flex-direction:column;flex-grow:1;padding:25px;display:flex}.card-tag{text-transform:uppercase;letter-spacing:.5px;border-radius:20px;align-self:flex-start;margin-bottom:15px;padding:3px 10px;font-size:.75rem;font-weight:700;display:inline-block}.tag-maker{background-color:var(--arduino-teal-light);color:var(--arduino-teal-dark)}.tag-pro{color:#2e7d32;background-color:#e8f5e9}.tag-edu{color:#e65100;background-color:#fff3e0}.card-title{color:var(--text-dark);margin-bottom:12px;font-size:1.35rem;font-weight:700}.card-text{color:var(--body-text);flex-grow:1;margin-bottom:20px;font-size:.95rem}.card-link{margin-top:auto;font-size:.9rem;font-weight:700}.software-section{background-color:#fff;padding:80px 0}.software-container{align-items:center;gap:60px;display:flex}.software-image{flex:1}.ide-screenshot{border-radius:8px;max-width:100%;height:auto;box-shadow:0 10px 30px #0000001a}.software-info{flex:1}.sub-label{font-family:var(--font-mono);color:var(--arduino-teal);letter-spacing:1px;margin-bottom:10px;font-size:.85rem;font-weight:700;display:block}.text-left{text-align:left}.section-desc{color:var(--body-text);margin-bottom:30px;font-size:1.1rem}.download-buttons{flex-wrap:wrap;gap:15px;display:flex}.community-section{background-color:var(--light-gray);border-top:1px solid var(--border-color);padding:80px 0}.community-box{background-color:#fff;border-radius:8px;gap:25px;padding:40px;display:flex;box-shadow:0 4px 15px #00000008}.community-icon{font-size:3rem;line-height:1}.community-content h3{color:var(--text-dark);margin-bottom:12px;font-size:1.4rem;font-weight:700}.community-content p{color:var(--body-text);margin-bottom:20px;font-size:.95rem}.box-link{font-size:.9rem;font-weight:700}.newsletter-section{background-color:var(--arduino-teal-dark);color:#fff;text-align:center;padding:60px 0}.newsletter-container{max-width:700px;margin:0 auto;padding:0 20px}.newsletter-section h2{margin-bottom:12px;font-size:2rem;font-weight:700}.newsletter-section p{opacity:.9;margin-bottom:30px;font-size:1.1rem}.newsletter-form{gap:10px;display:flex}.input-email{border:none;border-radius:4px;outline:none;flex-grow:1;padding:12px 20px;font-size:1rem}.btn-submit{background-color:var(--dark-bg);color:#fff;text-transform:uppercase;border:none;padding:12px 30px;font-weight:700}.btn-submit:hover{background-color:#1a2020}.main-footer{background-color:var(--dark-bg);color:#a5b1b2;border-top:1px solid #ffffff0d;padding:60px 0 40px}.footer-cols{grid-template-columns:repeat(4,1fr);gap:40px;margin-bottom:50px;display:grid}.footer-col h4{color:#fff;text-transform:uppercase;letter-spacing:.5px;margin-bottom:20px;font-size:.9rem;font-weight:700}.footer-col ul{list-style:none}.footer-col ul li{margin-bottom:10px}.footer-col ul li a{color:#a5b1b2;font-size:.9rem}.footer-col ul li a:hover{color:#fff}.footer-bottom{border-top:1px solid #ffffff0d;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding-top:30px;display:flex}.footer-bottom-brand{color:#fff;font-family:var(--font-mono);align-items:center;gap:10px;font-size:1.1rem;font-weight:700;display:flex}.logo-svg-small{width:24px;height:24px}.footer-copyright{max-width:600px;font-size:.8rem}@media (width<=992px){.hero-container{text-align:center;flex-direction:column}.hero-actions{justify-content:center}.grid-3{grid-template-columns:1fr 1fr}.software-container{flex-direction:column}.footer-cols{grid-template-columns:repeat(2,1fr);gap:30px}}@media (width<=768px){.menu-toggle{display:flex}.nav-menu{background-color:var(--arduino-teal);border-top:1px solid #ffffff1a;width:100%;display:none;position:absolute;top:100%;left:0;box-shadow:0 4px 10px #0000001a}.nav-menu.active{display:block}.nav-menu ul{flex-direction:column;gap:15px;padding:20px}.grid-3,.grid-2{grid-template-columns:1fr}.community-box{flex-direction:column;align-items:flex-start;padding:30px}.newsletter-form{flex-direction:column}.footer-bottom{text-align:center;flex-direction:column;align-items:center}}