/* ======================================================================
   HUBIO AGRO — site stylesheet
   Paleta original mantida; execução refinada.
====================================================================== */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --vd: #164133;      /* verde escuro */
  --vd-2: #0d2a20;
  --vr: #1EBB01;      /* verde principal */
  --lm: #83C802;      /* verde lima */
  --bg: #081f14;      /* fundo escuro */
  --bg-2: #051610;

  --w: #ffffff;
  --g50: #f8faf7;
  --g100: #eef0ec;
  --g200: #dde1d8;
  --g300: #c4cabd;
  --g500: #7a8073;
  --g600: #565b50;
  --g700: #383c33;
  --g800: #1f221c;

  --rad-sm: 10px;
  --rad: 16px;
  --rad-lg: 24px;
  --rad-xl: 32px;

  --pad-x: clamp(20px, 5vw, 72px);

  --t1: cubic-bezier(.16,1,.3,1);
  --t2: cubic-bezier(.4,0,.2,1);

  --grad-vr: linear-gradient(135deg, var(--vr), var(--lm));
  --grad-vd: linear-gradient(180deg, #0a2418 0%, #081f14 60%, #051610 100%);
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Poppins', system-ui, sans-serif;
  color: var(--g800);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button { font-family: inherit; }

/* ---------- NAV ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px var(--pad-x);
  display: flex; align-items: center; justify-content: space-between;
  transition: padding .4s var(--t1), background .4s var(--t1), backdrop-filter .4s;
}
.nav.scrolled {
  background: rgba(8, 31, 20, .82);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  padding: 12px var(--pad-x);
  border-bottom: 1px solid rgba(131,200,2,.07);
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo img { height: 56px; width: auto; transition: transform .3s var(--t1); }
.nav-logo:hover img { transform: scale(1.04); }
.nav.scrolled .nav-logo img { height: 46px; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  font-size: .76rem; font-weight: 500;
  color: rgba(255,255,255,.62); text-decoration: none;
  transition: color .3s; position: relative;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -8px;
  height: 2px; background: var(--grad-vr); border-radius: 1px;
}
.nav-cta {
  display: inline-flex; align-items: center;
  font-size: .74rem; font-weight: 600;
  color: var(--vd-2); background: var(--lm);
  padding: 10px 22px; border-radius: 100px; text-decoration: none;
  transition: transform .3s var(--t1), box-shadow .3s, background .3s;
}
.nav-cta:hover {
  transform: translateY(-2px);
  background: #98e003;
  box-shadow: 0 10px 30px rgba(131,200,2,.32);
}

/* mobile nav */
.nav-burger {
  display: none; background: transparent; border: 0; cursor: pointer;
  width: 38px; height: 38px; position: relative;
}
.nav-burger span {
  position: absolute; left: 7px; right: 7px; height: 2px;
  background: #fff; border-radius: 1px; transition: transform .3s, opacity .3s;
}
.nav-burger span:nth-child(1) { top: 13px; }
.nav-burger span:nth-child(2) { top: 19px; }
.nav-burger span:nth-child(3) { top: 25px; }
.nav.open .nav-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- TIPOGRAFIA / TOKENS ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .64rem; font-weight: 700; letter-spacing: .28em;
  text-transform: uppercase; color: var(--vr);
}
.eyebrow::before {
  content: ''; width: 24px; height: 2px;
  background: var(--lm); border-radius: 1px;
}
.eyebrow.light { color: var(--lm); }

h1, h2, h3, h4 { letter-spacing: -.02em; line-height: 1.1; font-weight: 700; }
.h-display {
  font-weight: 800; font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  letter-spacing: -.035em; line-height: 1.02;
}
.h-section {
  font-weight: 700; font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  letter-spacing: -.025em; line-height: 1.08;
}
.h-card { font-weight: 700; font-size: 1.05rem; }

.gr {
  background: var(--grad-vr);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.tx-vr { color: var(--vr); }
.tx-lm { color: var(--lm); }
.tx-vd { color: var(--vd); }

p.lead, .lead {
  font-size: clamp(.95rem, 1.1vw, 1.05rem);
  font-weight: 300; line-height: 1.75;
  color: var(--g600); text-wrap: pretty;
}
.lead.dark { color: rgba(255,255,255,.62); }
.muted { color: var(--g500); font-weight: 300; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .8rem; font-weight: 600;
  padding: 14px 26px; border-radius: 100px;
  text-decoration: none; cursor: pointer; border: 0;
  transition: transform .3s var(--t1), box-shadow .3s, background .3s, color .3s, border-color .3s;
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; }
.btn-primary {
  color: var(--vd-2); background: var(--lm);
}
.btn-primary:hover {
  transform: translateY(-2px); background: #98e003;
  box-shadow: 0 14px 36px rgba(131,200,2,.32);
}
.btn-ghost {
  color: var(--g600); background: transparent;
  border: 1px solid var(--g200);
}
.btn-ghost:hover { color: var(--vr); border-color: var(--vr); }
.btn-ghost.dark { color: rgba(255,255,255,.65); border-color: rgba(255,255,255,.14); }
.btn-ghost.dark:hover { color: var(--lm); border-color: var(--lm); }
.btn-solid-vd {
  color: #fff; background: var(--vd);
}
.btn-solid-vd:hover { background: var(--vd-2); transform: translateY(-2px); }

/* ---------- SECTIONS ---------- */
.section { padding: clamp(72px, 9vw, 130px) var(--pad-x); position: relative; }
.section.light { background: var(--w); color: var(--g800); }
.section.tint  { background: var(--g50); color: var(--g800); }
.section.dark  { background: var(--bg); color: #fff; }
.mw { max-width: 1240px; margin: 0 auto; position: relative; }

.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 56px; }
.section-head .lead { max-width: 520px; margin-top: 14px; }
.section-link {
  font-size: .78rem; font-weight: 500;
  color: var(--vr); text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: gap .3s var(--t1);
  white-space: nowrap;
}
.section-link svg { width: 14px; height: 14px; }
.section-link:hover { gap: 14px; }
.section-link.dark { color: var(--lm); }

/* ---------- REVEAL ON SCROLL ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--t1), transform .8s var(--t1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }

/* ---------- FOOTER ---------- */
.footer {
  padding: 72px var(--pad-x) 28px;
  background: var(--bg-2); color: #fff;
  border-top: 1px solid rgba(255,255,255,.04);
}
.ft-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; max-width: 1240px; margin: 0 auto 56px; }
.ft-brand img { height: 44px; margin-bottom: 18px; filter: brightness(0) invert(1); opacity: .92; }
.ft-brand p { font-size: .78rem; font-weight: 300; color: rgba(255,255,255,.45); line-height: 1.75; max-width: 320px; }
.ft-social { display: flex; gap: 10px; margin-top: 20px; }
.ft-social a {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: 50%; border: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.55); transition: all .3s;
}
.ft-social a:hover { color: var(--lm); border-color: var(--lm); transform: translateY(-2px); }
.ft-social svg { width: 14px; height: 14px; }
.ft-col h4 {
  font-size: .6rem; font-weight: 700; letter-spacing: .26em; text-transform: uppercase;
  color: var(--lm); margin-bottom: 18px;
}
.ft-col a, .ft-col p {
  display: block; font-size: .8rem; font-weight: 300;
  color: rgba(255,255,255,.42); text-decoration: none; margin-bottom: 10px;
  transition: color .3s;
}
.ft-col a:hover { color: var(--lm); }
.ft-bot {
  max-width: 1240px; margin: 0 auto; padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.05);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.ft-bot p { font-size: .68rem; color: rgba(255,255,255,.28); }
.ft-bar { width: 100%; height: 2px; margin-top: 24px; border-radius: 1px;
  background: linear-gradient(90deg, transparent, var(--vr), var(--lm), var(--vr), transparent);
  opacity: .35;
}

/* ---------- UTILITIES ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .66rem; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase; padding: 6px 14px; border-radius: 100px;
}
.tag-vr  { background: rgba(30,187,1,.1);   color: var(--vr); border: 1px solid rgba(30,187,1,.18); }
.tag-lm  { background: rgba(131,200,2,.1);  color: var(--vr); border: 1px solid rgba(131,200,2,.22); }
.tag-vd  { background: rgba(22,65,51,.08);  color: var(--vd); border: 1px solid rgba(22,65,51,.14); }
.tag-dark { background: rgba(131,200,2,.08); color: var(--lm); border: 1px solid rgba(131,200,2,.18); }

/* dotted divider */
.dot-row { display: flex; align-items: center; gap: 8px; margin: 32px 0; }
.dot-row::before, .dot-row::after {
  content: ''; flex: 1; height: 1px;
  background: repeating-linear-gradient(90deg, currentColor 0 2px, transparent 2px 6px);
  opacity: .2;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .nav-burger { display: block; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; gap: 14px;
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 24px var(--pad-x);
    background: rgba(8,31,20,.96); backdrop-filter: blur(24px);
    border-top: 1px solid rgba(131,200,2,.08);
  }
  .nav.open .nav-cta { align-self: flex-start; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .ft-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .ft-top { grid-template-columns: 1fr; gap: 32px; }
  .ft-bot { flex-direction: column; gap: 8px; text-align: center; }
}