:root{
  --mint:#CDF5E9; --mint-soft:#E8FAF4; --forest:#1F4D40; --ink:#16332B;
  --orange:#E9A23B; --orange-dark:#B8701A; --cream:#FFFBF3; --white:#fff;
  --radius:22px; --shadow:0 10px 30px rgba(31,77,64,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Poppins",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;font-size:17px}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:6px}
.container{width:min(1120px,92%);margin-inline:auto}
h1,h2,h3{line-height:1.2;color:var(--forest);font-weight:700}
h2{font-size:clamp(1.7rem,3.5vw,2.4rem);margin-bottom:14px}
.lead{max-width:60ch;font-size:1.08rem}
section{padding:84px 0}

/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(255,251,243,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(31,77,64,.1)}
.header .container{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;color:var(--forest);font-size:1.05rem}
.brand img{width:46px;height:46px;background:var(--mint);border-radius:50%;padding:5px}
.nav{display:flex;gap:26px;align-items:center}
.nav a{text-decoration:none;font-weight:500;font-size:.95rem}
.nav a:hover{color:var(--orange-dark)}
.menu-btn{display:none;background:var(--mint);border:0;border-radius:12px;width:46px;height:46px;font-size:1.4rem;cursor:pointer;color:var(--forest)}

/* Buttons */
.btn{display:inline-block;padding:14px 28px;border-radius:999px;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:600;transition:transform .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--forest);color:var(--white)}
.btn-primary:hover{background:#163a30}
.btn-ghost{border-color:var(--forest);color:var(--forest);background:transparent}
.btn-ghost:hover{background:var(--mint)}
.btn-small{padding:10px 22px;background:var(--orange);color:var(--ink)}

/* Hero */
.hero{background:var(--mint);padding:70px 0 90px;position:relative;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);margin-bottom:18px;letter-spacing:-.02em}
.hero p{max-width:48ch;margin-bottom:30px;font-size:1.12rem}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-art{justify-self:center;width:min(560px,100%)}
.hero-art img{width:100%;height:auto;border-radius:var(--radius)}

/* Sobre */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.fact{background:var(--mint-soft);border-radius:var(--radius);padding:26px}
.fact strong{display:block;font-size:2rem;color:var(--forest);line-height:1.1;margin-bottom:6px}

/* Gatos */
.cats{background:var(--mint-soft)}
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:34px}
.cat-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.cat-card h3{font-size:1.6rem}
.cat-card a{margin-top:auto;font-weight:600;color:var(--orange-dark)}

/* Ajudar */
.help-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;margin-top:34px}
.pix{background:var(--forest);color:var(--white);border-radius:var(--radius);padding:36px}
.pix h3{color:var(--white);margin-bottom:8px}
.pix-key{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:20px 0 8px;background:rgba(255,255,255,.1);padding:14px 16px;border-radius:14px}
.pix-key code{font-size:1.25rem;font-weight:600;letter-spacing:.04em;word-break:break-all}
.pix small{opacity:.85}
.vaquinha{background:var(--orange);border-radius:var(--radius);padding:36px;display:flex;flex-direction:column;gap:14px;color:var(--ink)}
.vaquinha h3{color:var(--ink)}
.vaquinha .btn{align-self:flex-start;margin-top:auto;background:var(--ink);color:var(--white)}

/* Redes */
.social{background:var(--mint)}
.social-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-top:30px;list-style:none}
.social-list a{display:block;background:var(--white);border-radius:18px;padding:18px 22px;text-decoration:none;font-weight:600;color:var(--forest);transition:transform .2s}
.social-list a:hover{transform:translateY(-3px)}
.social-list span{display:block;font-weight:400;font-size:.9rem;color:var(--ink);opacity:.8}

/* Petwork */
.support{padding:60px 0;background:var(--cream)}
.support-box{max-width:760px;margin-inline:auto;text-align:center;border:2px dashed var(--orange);border-radius:var(--radius);padding:34px 28px}
.support-box h2{font-size:1.5rem;margin-bottom:10px}
.support-box a{color:var(--orange-dark);font-weight:600}

/* Footer */
.footer{background:var(--forest);color:rgba(255,255,255,.88);padding:50px 0 24px;text-align:center}
.footer .brand{justify-content:center;color:var(--white);margin-bottom:10px}
.footer .brand img{background:var(--mint)}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;margin:18px 0 26px}
.footer-links a{text-decoration:none}
.footer-links a:hover{text-decoration:underline}
.footer-credit{border-top:1px solid rgba(255,255,255,.18);padding-top:20px;font-size:.92rem}
.footer-credit a{color:var(--orange);font-weight:600}

/* Responsivo */
@media (max-width:860px){
  section{padding:60px 0}
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--cream);flex-direction:column;padding:20px 0 26px;gap:18px;border-bottom:1px solid rgba(31,77,64,.12)}
  .nav.open{display:flex}
  .hero .container,.help-grid,.cat-grid,.facts{grid-template-columns:1fr}
  .hero{padding:44px 0 70px}
  .hero-art{order:-1;width:min(360px,90%)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}