/* ==========================================================================
   Agro Fire — Design tokens
   Paleta 60/30/10: branco (60%), verde escuro (30%), laranja (10%)
   ========================================================================== */
:root {
  --color-white: #ffffff;
  --color-bg-alt: #f4f7f3;

  --color-primary: #1f5d2c;
  --color-primary-dark: #123c1c;
  --color-primary-light: #2f7a3f;

  --color-accent: #f2740a;
  --color-accent-dark: #c85a05;
  --color-accent-light: #fbb35c;

  --color-text: #1a1a1a;
  --color-text-muted: #4a4a4a;
  --color-border: #e3e8e1;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --container: 1180px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(18, 40, 20, 0.1);
  --transition: 0.25s ease;
}

/* ==========================================================================
   Reset
   ========================================================================== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-heading); margin: 0 0 0.5em; color: var(--color-primary-dark); line-height: 1.25; }
p { margin: 0 0 1em; color: var(--color-text-muted); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 200;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

*:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn .icon { width: 18px; height: 18px; flex-shrink: 0; }

.btn--accent {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.btn--accent:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(6px);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 76px;
}
.header__logo img { height: 48px; width: auto; }

.nav__list {
  display: flex;
  gap: 28px;
}
.nav__link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary-dark);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.nav__link:hover,
.nav__link:focus-visible {
  border-color: var(--color-accent);
}

.header__cta { flex-shrink: 0; }

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav__toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--color-primary-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-primary-dark);
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  z-index: -2;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 26, 13, 0.55) 0%, rgba(10, 26, 13, 0.35) 40%, rgba(10, 26, 13, 0.85) 100%),
    linear-gradient(100deg, rgba(18, 60, 28, 0.9) 0%, rgba(18, 60, 28, 0.45) 45%, rgba(18, 60, 28, 0.05) 75%);
  z-index: -1;
}
.hero__inner {
  padding: 150px 0 100px;
  width: 100%;
}
.hero__content { max-width: 640px; }
.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 22px;
  backdrop-filter: blur(4px);
}
.hero__title {
  font-size: clamp(3rem, 6vw, 4.6rem);
  font-weight: 800;
  color: var(--color-white);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}
.hero__subtitle {
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 600;
  color: var(--color-accent-light);
  margin-bottom: 0.7em;
}
.hero__text {
  font-size: 1.1rem;
  max-width: 540px;
  color: rgba(255, 255, 255, 0.88);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
}
.btn--outline-light {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}
.btn--outline-light:hover {
  background: var(--color-white);
  color: var(--color-primary-dark);
  border-color: var(--color-white);
}
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
  animation: heroScroll 2s ease-in-out infinite;
}
.hero__scroll svg { width: 18px; height: 18px; }
@keyframes heroScroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ==========================================================================
   Section headings
   ========================================================================== */
.section-head {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  position: relative;
  padding-bottom: 16px;
}
.section-head h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: var(--color-accent);
}
.section-head--light h2 { color: var(--color-white); }
.section-head--light p { color: rgba(255, 255, 255, 0.85); }

section { padding: 88px 0; }

/* ==========================================================================
   Sobre
   ========================================================================== */
.sobre { position: relative; background: var(--color-white); overflow: hidden; }
.sobre__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.55;
  filter: brightness(0.7);
  z-index: 0;
}
.sobre::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.8) 40%, rgba(255, 255, 255, 0.45) 100%);
  z-index: 0;
}
.sobre .container { position: relative; z-index: 1; }
.sobre__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  margin-bottom: 64px;
}
.sobre__text h3 { font-size: 1.3rem; }
.sobre__cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.mv-card {
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 8px 32px rgba(18, 40, 20, 0.12);
}
.mv-card h3 { font-size: 1.1rem; }
.mv-card p { margin-bottom: 0; }
.mv-card--dark {
  background: linear-gradient(155deg, rgba(31, 93, 44, 0.55) 0%, rgba(18, 60, 28, 0.6) 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.mv-card--dark h3,
.mv-card--dark p { color: var(--color-white); }

.valores h3 {
  text-align: center;
  font-size: 1.3rem;
  margin-bottom: 32px;
}
.valores__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.valor {
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 8px 32px rgba(18, 40, 20, 0.12);
  transition: transform var(--transition), box-shadow var(--transition);
}
.valor:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.valor__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  margin-bottom: 14px;
}
.valor__icon svg { width: 24px; height: 24px; }
.valor h4 { font-size: 1rem; margin-bottom: 6px; }
.valor p { font-size: 0.9rem; margin-bottom: 0; }

/* ==========================================================================
   Produtos
   ========================================================================== */
.produtos { position: relative; background: var(--color-bg-alt); overflow: hidden; }
.produtos__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  z-index: 0;
}
.produtos::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, rgba(244, 247, 243, 0.6) 50%, var(--color-bg-alt) 100%);
  z-index: 0;
}
.produtos .container { position: relative; z-index: 1; }
.produto-card {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 44px;
  align-items: center;
  background: var(--color-white);
  border-radius: 24px;
  padding: 44px;
  box-shadow: var(--shadow);
}
.produto-card__visual svg { width: 100%; height: auto; }
.produto-card__content h3 { font-size: 1.6rem; }
.produto-card__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0 28px;
}
.produto-card__features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--color-text);
}
.icon--sm {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-primary);
}

/* ==========================================================================
   Diferenciais
   ========================================================================== */
.diferenciais {
  background: linear-gradient(155deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}
.diferenciais__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.diferencial {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
}
.diferencial__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  margin-bottom: 14px;
}
.diferencial__icon svg { width: 24px; height: 24px; }
.diferencial h3 { color: var(--color-white); font-size: 1.05rem; }
.diferencial p { color: rgba(255, 255, 255, 0.85); font-size: 0.92rem; margin-bottom: 0; }

/* ==========================================================================
   CTA
   ========================================================================== */
.cta {
  position: relative;
  overflow: hidden;
  padding: 96px 0;
  background: var(--color-primary-dark);
}
.cta__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(18, 60, 28, 0.72) 0%, rgba(10, 30, 15, 0.72) 100%);
  z-index: 1;
}
.cta__inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  text-align: center;
}
.cta__inner h2 {
  color: var(--color-white);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 0.5em;
}
.cta__inner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

/* ==========================================================================
   Contato
   ========================================================================== */
.contato { background: var(--color-white); }
.contato__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: start;
}
.info-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-bottom: 30px;
}
.info-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.info-list__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  flex-shrink: 0;
}
.info-list__icon svg { width: 20px; height: 20px; }
.info-list h3 { font-size: 1rem; margin-bottom: 4px; }
.info-list a { color: var(--color-primary); font-weight: 600; }
.info-list a:hover { color: var(--color-accent-dark); }
.info-list p { margin-bottom: 0; }

.contato__map {
  width: 100%;
  min-height: 340px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.contato__map iframe { width: 100%; height: 100%; min-height: 340px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding-top: 64px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.footer__brand img { margin-bottom: 14px; }
.footer__brand p { color: rgba(255, 255, 255, 0.75); max-width: 280px; }
.footer h3 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 16px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a { color: rgba(255, 255, 255, 0.8); transition: color var(--transition); }
.footer__col a:hover { color: var(--color-accent-light); }
.footer__col li { color: rgba(255, 255, 255, 0.8); }
.footer__bottom {
  padding: 22px 24px;
  text-align: center;
  font-size: 0.85rem;
}
.footer__bottom p {
  color: var(--color-white);
  margin: 0;
}

/* ==========================================================================
   Floating WhatsApp button
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(18, 40, 20, 0.35);
  z-index: 150;
  transition: background var(--transition);
}
.whatsapp-float svg { width: 28px; height: 28px; }
.whatsapp-float:hover { background: var(--color-primary-light); }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 992px) {
  .sobre__grid { grid-template-columns: 1fr; }
  .valores__grid { grid-template-columns: repeat(2, 1fr); }
  .produto-card { grid-template-columns: 1fr; padding: 32px; }
  .produto-card__visual { max-width: 220px; margin: 0 auto; }
  .diferenciais__grid { grid-template-columns: repeat(2, 1fr); }
  .contato__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform var(--transition);
    box-shadow: var(--shadow);
  }
  .nav.is-open { transform: translateY(0); }
  .nav__list {
    flex-direction: column;
    gap: 0;
    padding: 12px 24px 20px;
  }
  .nav__list li { border-bottom: 1px solid var(--color-border); }
  .nav__list li:last-child { border-bottom: none; }
  .nav__link { display: block; padding: 14px 0; }
  .nav__toggle { display: flex; }
  .header__cta { display: none; }
  .hero { min-height: 100vh; }
  .hero__inner { padding: 120px 0 80px; }
  .valores__grid { grid-template-columns: 1fr 1fr; }
  .diferenciais__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .valores__grid { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }
}