/* style.css - simples e responsivo */
:root{--bg:#f5f7fb;--card:#fff;--accent:#0b5ed7}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);margin:0;color:#102a43}
.header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:linear-gradient(90deg,#0b5ed7 0%,#2ec4b6 100%);color:white}
.brand{display:flex;align-items:center;gap:12px}
.logo{height:48px}
.run-gif{height:48px;border-radius:6px;object-fit:cover}
.container{max-width:920px;margin:28px auto;padding:0 16px}
.card{background:var(--card);padding:20px;border-radius:12px;box-shadow:0 6px 18px rgba(16,42,67,0.08);margin-bottom:16px}
form{display:flex;flex-direction:column;gap:12px}
input{padding:10px;border-radius:8px;border:1px solid #d8e3ef}
button{background:var(--accent);color:white;padding:10px 14px;border-radius:8px;border:0;cursor:pointer}
.result{margin-top:12px;padding:10px;border-radius:8px;background:#eef6ff;border:1px solid #cfe3ff}
.notes ul{margin:8px 0 0 18px}
.footer{text-align:center;padding:12px;color:#6b7280}
@media(max-width:600px){.header{flex-direction:column;gap:8px}.run-gif,.logo{height:40px}}