:root {
  --font-nour: "Nunito Sans";
  --blue: #043e6d;
  --green: #7a851d;
  --cream: #fff9e7;
  --brown: #2e210e;
  --sky: #88c6eb;
  --dark-green: #384823;
  --orange: #b35415;
  --olive-brown: #6e5b26;
  --paper: #fffdf6;
  --ink: #2e210e;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-nour), Arial, sans-serif; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: absolute; z-index: 20; top: 0; left: 0; right: 0;
  height: 92px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(24px, 6vw, 88px); color: white; border-bottom: 1px solid rgba(255,255,255,.22);
}
.brand { display: inline-flex; align-items: center; background: rgba(255,249,231,.94); padding: 9px 14px; border-radius: 999px; box-shadow: 0 6px 25px rgba(46,33,14,.12); }
.brand img { display: block; width: 165px; height: auto; }
nav { display: flex; align-items: center; gap: 32px; font-size: .9rem; }
nav a { opacity: .86; transition: opacity .2s ease; }
nav a:hover { opacity: 1; }
.nav-cta { border: 1px solid rgba(255,255,255,.65); padding: 11px 18px; border-radius: 999px; }

.hero { min-height: 820px; height: 100svh; position: relative; color: white; overflow: hidden; background: var(--blue); }
.hero-media { position: absolute; inset: 0; background-image: url('../img/hero-hidroponia.webp'), linear-gradient(135deg,#214f36,#0d281d); background-size: cover; background-position: center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(4,62,109,.92) 0%,rgba(4,62,109,.65) 48%,rgba(46,33,14,.13) 100%),linear-gradient(0deg,rgba(46,33,14,.48),transparent 45%); }
.hero-placeholder { display: none; }
.hero-content { position: relative; z-index: 2; padding: clamp(170px, 23vh, 235px) clamp(24px, 8vw, 120px) 80px; max-width: 860px; }
.eyebrow { font-size: .75rem; text-transform: uppercase; letter-spacing: .2em; font-weight: 800; color: var(--green); margin: 0 0 24px; }
.eyebrow.light { color: var(--sky); }
h1,h2,h3,p { margin-top: 0; }
h1 { font-size: clamp(3.6rem, 7vw, 7rem); line-height: .95; letter-spacing: -.065em; margin-bottom: 30px; font-weight: 550; }
h1 em, h2 em { font-family: inherit; font-weight: 400; font-style: italic; }
.hero-copy { font-size: clamp(1rem,1.4vw,1.23rem); line-height: 1.65; max-width: 610px; color: rgba(255,255,255,.76); }
.hero-actions { margin-top: 42px; display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 54px; padding: 0 26px; align-items: center; justify-content: center; border-radius: 999px; font-weight: 680; font-size: .92rem; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--sky); color: var(--blue); }
.text-link { font-size: .92rem; color: rgba(255,255,255,.86); }
.text-link span { margin-left: 8px; color: var(--sky); }
.hero-badge { position: absolute; z-index: 2; right: clamp(24px,6vw,90px); bottom: 55px; width: 176px; height: 176px; border: 1px solid rgba(255,255,255,.48); border-radius: 50%; display: flex; align-items: center; justify-content: center; gap: 9px; background: rgba(4,62,109,.5); backdrop-filter: blur(8px); }
.hero-badge strong { font-size: 2.8rem; font-weight: 700; }
.hero-badge span { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; line-height: 1.35; }

.manifesto { padding: clamp(90px,12vw,165px) clamp(24px,8vw,120px); }
.manifesto-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: clamp(50px,9vw,140px); align-items: end; }
.manifesto h2,.section-heading h2,.proposal h2 { font-size: clamp(2.8rem,5.2vw,5.6rem); line-height: 1.04; letter-spacing: -.055em; font-weight: 520; margin: 0; }
.manifesto-grid > div p { font-size: 1.05rem; line-height: 1.8; color: #54655d; }
.arrow-link { display: inline-flex; margin-top: 24px; gap: 22px; align-items: center; font-weight: 700; border-bottom: 1px solid #9fb0a5; padding-bottom: 8px; }

.water-comparison { background: var(--blue); color: white; min-height: 520px; display: grid; grid-template-columns: 1.35fr .7fr auto .7fr; gap: 35px; align-items: center; padding: 90px clamp(24px,8vw,120px); }
.comparison-intro h2 { font-size: clamp(2.3rem,4vw,4.2rem); line-height: 1.08; letter-spacing: -.045em; font-weight: 520; }
.liters { min-height: 270px; border-radius: 160px 160px 24px 24px; padding: 54px 30px 35px; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: end; position: relative; }
.liters.earth { background: #e8c3a6; color: var(--brown); }
.liters.water { background: var(--sky); color: var(--blue); }
.drop { width: 28px; height: 38px; background: currentColor; opacity: .2; border-radius: 55% 45% 55% 45%; transform: rotate(45deg); position: absolute; top: 43px; }
.liters strong { font-size: 4rem; line-height: 1; font-weight: 700; }
.liters p { margin: 15px 0 0; font-size: .76rem; text-transform: uppercase; letter-spacing: .09em; line-height: 1.55; }
.versus { font-style: italic; opacity: .55; font-size: 1.5rem; }

.benefits { padding: clamp(90px,12vw,165px) clamp(24px,8vw,120px); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 72px; }
.section-heading .eyebrow { align-self: start; }
.benefit-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid #cfd6d0; }
.benefit-card { padding: 42px 44px 30px 0; border-right: 1px solid #cfd6d0; min-height: 310px; }
.benefit-card + .benefit-card { padding-left: 44px; }
.benefit-card:last-child { border-right: 0; }
.benefit-card > span { color: var(--green); font-style: italic; }
.benefit-card h3 { font-size: 1.55rem; letter-spacing: -.025em; margin: 80px 0 18px; }
.benefit-card p { color: #66756d; line-height: 1.7; max-width: 340px; }

.system { display: grid; grid-template-columns: 1fr 1fr; background: var(--brown); color: white; }
.system-visual { min-height: 680px; background: linear-gradient(145deg,#9daa48,var(--green)); display: flex; align-items: end; padding: clamp(45px,7vw,100px); position: relative; overflow: hidden; }
.system-visual::before,.system-visual::after { content:""; position:absolute; border-radius:50%; border:1px solid rgba(255,255,255,.27); width:500px; height:500px; top:-80px; right:-120px; }
.system-visual::after { width:350px; height:350px; top:0; right:-45px; }
.system-number { font-size: clamp(8rem,17vw,15rem); font-weight: 700; letter-spacing: -.08em; line-height: .7; position: relative; z-index: 1; }
.system-visual p { position: relative; z-index: 1; margin: 0 0 0 30px; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
.system-copy { padding: clamp(70px,9vw,130px) clamp(35px,8vw,120px); }
.system-copy h2 { font-size: clamp(2.3rem,4vw,4.1rem); line-height: 1.08; letter-spacing: -.05em; font-weight: 520; }
.system-copy > p:not(.eyebrow) { color: rgba(255,255,255,.65); line-height: 1.75; max-width: 600px; }
.system-copy ul { list-style: none; padding: 0; margin: 45px 0 0; border-top: 1px solid rgba(255,255,255,.2); }
.system-copy li { padding: 18px 0 18px 34px; border-bottom: 1px solid rgba(255,255,255,.2); position: relative; }
.system-copy li::before { content:"✓"; position:absolute; left:0; color:var(--sky); }

.proposal { padding: clamp(100px,14vw,190px) clamp(24px,14vw,220px); text-align: center; background: var(--cream); }
.proposal h2 { max-width: 1000px; margin: 0 auto; }
.proposal-lead { max-width: 720px; margin: 35px auto 38px; font-size: 1.15rem; line-height: 1.7; color: #647168; }
.button-dark { background: var(--blue); color: white; }
.signature { margin: 82px auto 0; display: flex; align-items: center; justify-content: center; gap: 22px; color: #6d776f; font-size: .82rem; text-align: left; }
.signature span { width: 48px; height: 1px; background: #9da69f; }
.signature p { margin: 0; line-height: 1.55; }
.signature strong { color: var(--ink); }

.contact { background: var(--blue); color: white; padding: clamp(90px,12vw,150px) clamp(24px,8vw,120px); display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(55px,10vw,160px); align-items: center; }
.contact-heading h2 { font-size: clamp(2.8rem,5vw,5.2rem); line-height: 1.04; letter-spacing: -.055em; font-weight: 700; }
.contact-heading > p:last-child { max-width: 600px; color: rgba(255,255,255,.7); line-height: 1.7; font-size: 1.05rem; }
.contact-actions { border-top: 1px solid rgba(255,255,255,.25); }
.contact-actions > a { min-height: 102px; display: grid; grid-template-columns: 1fr auto; align-items: center; border-bottom: 1px solid rgba(255,255,255,.25); padding: 20px 6px; transition: padding .2s, background .2s; }
.contact-actions > a:hover { padding-left: 16px; padding-right: 16px; background: rgba(255,255,255,.06); }
.contact-actions small { display: block; text-transform: uppercase; letter-spacing: .16em; font-size: .66rem; color: var(--sky); margin-bottom: 7px; }
.contact-actions strong { font-size: clamp(1rem,1.55vw,1.3rem); font-weight: 650; overflow-wrap: anywhere; }
.contact-actions b { grid-column: 2; grid-row: 1; font-size: 1.3rem; color: var(--sky); }
.contact-primary { grid-template-columns: auto 1fr auto !important; gap: 18px; }
.contact-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; background: var(--green); font-weight: 800; }
.contact-primary > span:nth-child(2) { min-width: 0; }
.contact-primary b { grid-column: 3; }

footer { min-height: 130px; padding: 35px clamp(24px,6vw,88px); display: flex; align-items: center; justify-content: space-between; gap: 25px; background: var(--brown); color: rgba(255,255,255,.62); font-size: .78rem; }
.footer-brand { background: var(--cream); }
.footer-brand img { width: 150px; }
footer p { margin: 0; }
.whatsapp-float { position: fixed; z-index: 30; right: 22px; bottom: 22px; display: flex; align-items: center; gap: 10px; background: var(--green); color: white; padding: 10px 17px 10px 10px; border-radius: 999px; box-shadow: 0 12px 32px rgba(46,33,14,.27); font-size: .8rem; transition: transform .2s; }
.whatsapp-float:hover { transform: translateY(-2px); }
.whatsapp-float span { width: 35px; height: 35px; border-radius: 50%; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.55); font-weight: 800; }

@media (max-width: 900px) {
  .site-header nav > a:not(.nav-cta) { display: none; }
  .hero { min-height: 760px; }
  .hero-content { padding-top: 190px; }
  .hero-badge { width: 130px; height: 130px; bottom: 28px; }
  .hero-badge strong { font-size: 2rem; }
  .manifesto-grid,.system,.contact { grid-template-columns: 1fr; }
  .water-comparison { grid-template-columns: 1fr 1fr; }
  .comparison-intro { grid-column: 1/-1; }
  .versus { display: none; }
  .section-heading { display: block; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-card,.benefit-card + .benefit-card { padding: 32px 0; border-right: 0; border-bottom: 1px solid #cfd6d0; min-height: 0; }
  .benefit-card h3 { margin: 32px 0 12px; }
  .system-visual { min-height: 450px; }
  footer { flex-direction: column; text-align: center; padding: 45px 24px; }
}

@media (max-width: 560px) {
  .site-header { height: 76px; padding-left: 16px; padding-right: 16px; }
  .brand { padding: 8px 10px; }
  .brand img { width: 130px; }
  .nav-cta { padding: 9px 13px; }
  h1 { font-size: clamp(3rem,15vw,4.4rem); }
  .hero-copy { max-width: 92%; }
  .hero-badge { display: none; }
  .water-comparison { gap: 12px; padding-left: 18px; padding-right: 18px; }
  .liters { min-height: 220px; padding: 45px 10px 28px; }
  .liters strong { font-size: 3rem; }
  .liters p { font-size: .62rem; }
  .system-number { font-size: 8rem; }
  .system-visual p { margin-left: 16px; }
  .contact-actions > a { min-height: 92px; }
  .whatsapp-float b { display: none; }
  .whatsapp-float { padding: 9px; right: 14px; bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }