:root {
  --green-900: #0f3d1f;
  --green-800: #14532d;
  --green-700: #1b6e35;
  --green-600: #22823f;
  --green-500: #2fa855;
  --green-400: #4cc26e;
  --lime-400: #a3e635;
  --lime-300: #d9f99d;
  --cream: #f5f8f1;
  --white: #ffffff;
  --ink: #16241a;
  --ink-soft: #4b5b4f;
  --border: #dde8dd;
  --shadow: 0 10px 30px rgba(15, 61, 31, 0.12);
  --radius: 18px;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Quicksand', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--green-900);
  margin: 0 0 .5em;
}

p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--green-700); text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn--primary {
  background: var(--green-600);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(34, 130, 63, 0.35);
}
.btn--primary:hover { transform: translateY(-2px); background: var(--green-700); }
.btn--ghost {
  background: transparent;
  color: var(--green-800);
  border-color: var(--green-600);
}
.btn--ghost:hover { background: var(--green-600); color: var(--white); }
.btn--small { padding: 10px 20px; font-size: 0.85rem; }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 248, 241, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--green-900);
  font-weight: 600;
  white-space: nowrap;
}
.logo__icon { font-size: 1.5rem; }
.logo__text strong { color: var(--lime-400); -webkit-text-stroke: .3px var(--green-800); }

.nav {
  display: flex;
  gap: 14px;
  flex: 1;
  justify-content: center;
}
.nav a {
  color: var(--green-900);
  font-weight: 600;
  font-size: 0.85rem;
  white-space: nowrap;
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--green-500);
  transition: width .2s ease;
}
.nav a:hover::after { width: 100%; }

.header__cta { white-space: nowrap; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--green-900);
  border-radius: 2px;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--green-900), var(--green-700) 60%, var(--green-600));
  padding: 90px 0 70px;
  color: var(--white);
}
.hero__leaves {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(163, 230, 53, 0.25), transparent 40%),
    radial-gradient(circle at 10% 80%, rgba(76, 194, 110, 0.25), transparent 45%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 40px;
}
.badge {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero h1 span { color: var(--lime-400); }
.hero p { color: rgba(255,255,255,0.85); font-size: 1.05rem; max-width: 520px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin: 28px 0 40px; }
.hero .btn--ghost { color: var(--white); border-color: rgba(255,255,255,0.5); }
.hero .btn--ghost:hover { background: var(--white); color: var(--green-800); }

.hero__stats {
  display: flex;
  gap: 40px;
}
.hero__stats div { display: flex; flex-direction: column; }
.hero__stats strong { font-family: var(--font-heading); font-size: 1.6rem; color: var(--lime-400); }
.hero__stats span { font-size: 0.85rem; color: rgba(255,255,255,0.75); }

.hero__visual { display: flex; justify-content: center; }
.hero__circle {
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--lime-300), var(--green-500) 70%);
  display: flex; align-items: center; justify-content: center;
  font-size: 6rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

/* Sections */
.section { padding: 90px 0; }
.section--alt { background: var(--white); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--green-600);
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.section h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
.section__lead { max-width: 680px; font-size: 1.05rem; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow);
  transition: transform .2s ease;
}
.card:hover { transform: translateY(-6px); }
.card__icon {
  font-size: 2.2rem;
  width: 60px; height: 60px;
  display: flex; align-items: center; justify-content: center;
  background: var(--lime-300);
  border-radius: 50%;
  margin-bottom: 16px;
}
.card h3 { font-size: 1.15rem; }

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.step {
  position: relative;
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 22px;
}
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--green-600);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 14px;
}
.step h4 { font-size: 1.05rem; }

/* Doar */
.doar__inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 50px;
  align-items: center;
}
.checklist { list-style: none; padding: 0; margin: 20px 0 30px; }
.checklist li {
  padding-left: 30px;
  position: relative;
  margin-bottom: 12px;
  color: var(--ink-soft);
}
.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--white);
  background: var(--green-600);
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  top: 2px;
}
.doar__visual { display: flex; justify-content: center; }
.doar__blob {
  width: 220px; height: 220px;
  border-radius: 40% 60% 55% 45% / 50% 45% 55% 50%;
  background: linear-gradient(145deg, var(--lime-300), var(--green-500));
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem;
  box-shadow: var(--shadow);
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 40px 0;
}
.gallery__item {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
}
.gallery__item span { font-size: 2.6rem; display: block; margin-bottom: 14px; }
.gallery__item p { margin: 0; font-weight: 600; color: var(--green-900); }

/* Shop */
.shop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 40px 0 20px;
}
.shop-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform .2s ease;
}
.shop-item:hover { transform: translateY(-6px); }
.shop-item__img {
  width: 100%;
  aspect-ratio: 1.2 / 1;
  background: var(--lime-300);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin-bottom: 16px;
}
.shop-item h4 { font-size: 1.05rem; margin-bottom: 6px; }
.shop-item p { font-size: 0.9rem; flex: 1; }
.shop-item__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  gap: 10px;
}
.shop-item .price {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--green-800);
  font-size: 1.05rem;
}
.shop-note {
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-style: italic;
}

/* Partners */
.partners__tier-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--green-700);
  margin: 36px 0 18px;
}
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.partners-grid--master {
  grid-template-columns: repeat(2, 1fr);
  max-width: 560px;
}
.partners-grid--small {
  grid-template-columns: repeat(6, 1fr);
}
.partner-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  box-shadow: var(--shadow);
}
.partners-grid--master .partner-card { min-height: 140px; }
.partner-card img {
  max-width: 100%;
  max-height: 60px;
  object-fit: contain;
}
.partners-grid--master .partner-card img { max-height: 80px; }

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(120deg, var(--green-800), var(--green-600));
  color: var(--white);
  padding: 36px 40px;
  border-radius: var(--radius);
  flex-wrap: wrap;
}
.cta-box h3 { color: var(--white); margin-bottom: 6px; }
.cta-box p { color: rgba(255,255,255,0.85); margin: 0; }

/* Parceiro Desenvolvedor */
.dev-partner-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
  align-items: stretch;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: 40px;
}
.dev-partner-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
}
.dev-partner-card__body {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.dev-partner-card__body h3 { font-size: 1.4rem; }
.dev-partner-card__body .btn { align-self: flex-start; margin-top: 10px; }

/* Contato */
.contato__inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 50px;
  align-items: start;
}
.form { display: flex; flex-direction: column; gap: 18px; margin-top: 24px; }
.form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 600;
  color: var(--green-900);
  font-size: 0.9rem;
}
.form input, .form textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--ink);
  resize: vertical;
}
.form input:focus, .form textarea:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(47, 168, 85, 0.15);
}
.form button { align-self: flex-start; margin-top: 6px; }
.form__status { font-size: 0.9rem; color: var(--green-700); font-weight: 600; min-height: 1.2em; }

.contato__info {
  background: var(--green-900);
  color: var(--white);
  padding: 32px;
  border-radius: var(--radius);
}
.contato__info h3 { color: var(--white); }
.contato__info p { color: rgba(255,255,255,0.7); }
.contato__list { list-style: none; padding: 0; margin: 20px 0; display: flex; flex-direction: column; gap: 12px; }
.contato__list a { color: var(--lime-400); }
.contato__social { display: flex; gap: 12px; }
.contato__social a {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 0.8rem;
}
.contato__social a:hover { background: var(--lime-400); color: var(--green-900); }

/* Footer */
.footer {
  background: var(--green-900);
  color: rgba(255,255,255,0.6);
  padding: 24px 0;
  font-size: 0.85rem;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--green-600);
  color: var(--white);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 90;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-3px); }

/* Responsive */
@media (max-width: 960px) {
  .hero__inner, .doar__inner, .contato__inner, .dev-partner-card { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
  .cards-grid, .gallery, .shop-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .partners-grid, .partners-grid--small { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 720px) {
  .nav { display: none; }
  .header__cta { display: none; }
  .hamburger { display: flex; }
  .cards-grid, .gallery, .steps, .shop-grid { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 50px; }
  .hero__stats { gap: 24px; flex-wrap: wrap; }
  .cta-box { flex-direction: column; align-items: flex-start; }
  .partners-grid, .partners-grid--master, .partners-grid--small { grid-template-columns: repeat(2, 1fr); }

  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
}