:root{--azul:#0b63ce;--azul2:#084ea3;--verde:#12a66a;--escuro:#0d1b2a;--cinza:#f3f6fb;--borda:#dfe7f3;--texto:#1f2937;--amarelo:#ffc928}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f6f8fc;color:var(--texto)}a{text-decoration:none;color:inherit}.topbar{background:var(--escuro);color:#fff;padding:10px 20px;font-size:14px}.nav{background:#fff;border-bottom:1px solid var(--borda);display:flex;align-items:center;justify-content:space-between;padding:16px 5%;position:sticky;top:0;z-index:10}.logo{font-weight:900;font-size:24px;color:var(--azul)}.menu a{margin:0 8px;font-weight:700;color:#223}.hero{padding:55px 5%;background:linear-gradient(135deg,#0b63ce,#08294f);color:#fff;text-align:center}.hero h1{font-size:42px;margin:0 0 12px}.hero p{font-size:19px;max-width:900px;margin:0 auto 24px}.conversor-box{background:#fff;color:#111;max-width:880px;margin:25px auto 0;border-radius:20px;padding:22px;box-shadow:0 12px 35px rgba(0,0,0,.22);display:grid;grid-template-columns:1fr 1fr auto;gap:12px}.conversor-box select,.conversor-box button,.tool-card input,.tool-card select,.tool-card textarea{padding:14px;border-radius:12px;border:1px solid var(--borda);font-size:16px}.btn{background:var(--verde);color:#fff;border:0;border-radius:12px;padding:14px 20px;font-weight:900;cursor:pointer}.btn:hover{filter:brightness(.95);transform:translateY(-1px)}.wrap{max-width:1180px;margin:auto;padding:35px 5%}.sec-title{text-align:center;font-size:30px;margin:0 0 10px}.sec-sub{text-align:center;max-width:780px;margin:0 auto 28px;color:#566}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--borda);border-radius:18px;padding:22px;box-shadow:0 5px 18px rgba(0,0,0,.06);transition:.25s}.card:hover{transform:translateY(-4px);box-shadow:0 9px 25px rgba(0,0,0,.1)}.card h3{margin:0 0 8px;color:#0b376f}.card p{line-height:1.5;color:#566}.tags span{display:inline-block;background:#eef5ff;color:#0b63ce;padding:6px 8px;border-radius:8px;margin:4px;font-size:13px;font-weight:700}.popular{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.popular a{background:#fff;border:1px solid var(--borda);border-radius:999px;padding:10px 14px;font-weight:700;color:#0b63ce}.tool-card{background:#fff;border:1px solid var(--borda);border-radius:20px;padding:24px;box-shadow:0 7px 24px rgba(0,0,0,.07);margin:20px 0}.drop{border:2px dashed #9db8dd;border-radius:18px;padding:30px;text-align:center;background:#f8fbff}.result{background:#ecfff5;border:1px solid #b9efd5;border-radius:14px;padding:16px;margin-top:16px;word-break:break-word}.notice{background:#fff8df;border:1px solid #f1d46b;border-radius:14px;padding:14px;margin:15px 0;color:#5d4600}.footer{background:#0d1b2a;color:#dbeafe;padding:35px 5%;margin-top:40px}.footer-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:22px}.footer a{display:block;color:#dbeafe;margin:7px 0}.back{display:inline-block;margin:20px 0;color:#0b63ce;font-weight:900}.small{font-size:13px;color:#677}.adbox{background:#fff;border:2px dashed #cbd5e1;border-radius:16px;text-align:center;padding:20px;color:#64748b;margin:24px 0}@media(max-width:800px){.grid,.footer-grid,.conversor-box{grid-template-columns:1fr}.hero h1{font-size:30px}.menu{display:none}}