/* ============================================
   AGROBIX - Stylesheet
   Tech & Green aesthetic
   ============================================ */

:root {
  --green-900: #0a2e1f;
  --green-800: #0d4f2c;
  --green-700: #166534;
  --green-600: #15803d;
  --green-500: #22c55e;
  --green-400: #4ade80;
  --green-50:  #f0fdf4;

  --blue-600:  #0284c7;
  --blue-500:  #0ea5e9;
  --blue-50:   #f0f9ff;

  --ink-900:   #0f172a;
  --ink-700:   #334155;
  --ink-500:   #64748b;
  --ink-300:   #cbd5e1;
  --ink-100:   #f1f5f9;
  --ink-50:    #f8fafc;
  --white:     #ffffff;

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow:    0 10px 30px -10px rgba(15,23,42,.15);
  --shadow-lg: 0 25px 50px -12px rgba(15,23,42,.25);

  --max-w: 1200px;
  --nav-h: 76px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ---------- Layout helpers ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--green-600);
  background: var(--green-50);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--ink-900); }
h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.75rem); letter-spacing: -0.01em; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p.lead { font-size: 1.15rem; color: var(--ink-700); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--green-600);
  color: var(--white);
  box-shadow: 0 8px 20px -8px rgba(22,101,52,.6);
}
.btn-primary:hover { background: var(--green-700); transform: translateY(-2px); box-shadow: 0 12px 28px -8px rgba(22,101,52,.7); }
.btn-secondary {
  background: var(--white);
  color: var(--ink-900);
  border: 1.5px solid var(--ink-300);
}
.btn-secondary:hover { border-color: var(--green-600); color: var(--green-700); }
.btn-ghost { color: var(--white); border: 1.5px solid rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-lg { padding: 18px 34px; font-size: 16px; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(15,23,42,.06);
  transition: all .3s ease;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.35rem; letter-spacing: -0.02em;
  color: var(--ink-900);
}
.logo-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  border-radius: 10px;
  display: grid; place-items: center;
  color: white; font-weight: 900; font-size: 15px;
  box-shadow: 0 6px 14px -4px rgba(22,101,52,.5);
}
.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav-links a {
  font-weight: 500; font-size: 15px; color: var(--ink-700);
  transition: color .2s;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--green-700); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -24px; left: 0; right: 0;
  height: 2px; background: var(--green-600); border-radius: 2px;
}
.nav-cta { display: flex; gap: 12px; align-items: center; }
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 8px;
  align-items: center; justify-content: center;
  color: var(--ink-900);
}
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 900px) {
  .nav-links, .nav-cta .btn:not(.btn-whatsapp-nav) { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    background: var(--white);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--ink-100);
    box-shadow: var(--shadow);
  }
}

/* ---------- Hero ---------- */
.hero {
  padding-top: calc(var(--nav-h) + 64px);
  padding-bottom: 96px;
  background:
    radial-gradient(ellipse 80% 60% at 80% 10%, rgba(34,197,94,.15), transparent 60%),
    radial-gradient(ellipse 70% 50% at 10% 90%, rgba(14,165,233,.1), transparent 60%),
    linear-gradient(180deg, var(--green-50) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero h1 span.accent {
  background: linear-gradient(135deg, var(--green-600), var(--blue-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.lead { margin: 24px 0 36px; max-width: 560px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 48px;
  margin-top: 56px; padding-top: 36px;
  border-top: 1px solid var(--ink-100);
}
.hero-stat strong { display:block; font-size: 2rem; color: var(--green-700); font-weight: 800; letter-spacing: -0.02em; }
.hero-stat span { color: var(--ink-500); font-size: 14px; }

.hero-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--green-800), var(--green-600));
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.hero-badge {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 12px;
  font-size: 14px; font-weight: 500;
}
.hero-badge .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--green-500); box-shadow: 0 0 0 4px rgba(34,197,94,.2); }
.hero-badge-tl { top: 24px; left: -24px; }
.hero-badge-br { bottom: 28px; right: -24px; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { aspect-ratio: 4/3; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-badge-tl { left: 8px; }
  .hero-badge-br { right: 8px; }
}

/* Page hero (smaller for inner pages) */
.page-hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 80px;
  background:
    radial-gradient(ellipse 80% 60% at 90% 20%, rgba(34,197,94,.12), transparent 60%),
    linear-gradient(180deg, var(--ink-50), var(--white));
  text-align: center;
}
.page-hero h1 { max-width: 780px; margin: 0 auto; }
.page-hero p.lead { max-width: 620px; margin: 20px auto 0; }

/* ---------- Feature cards ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all .3s ease;
}
.feature-card:hover { border-color: var(--green-500); transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon {
  width: 54px; height: 54px;
  background: var(--green-50);
  color: var(--green-700);
  border-radius: 12px;
  display: grid; place-items: center;
  margin-bottom: 20px;
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--ink-500); font-size: 15px; }

/* ---------- Product category cards (big) ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 380px;
  background: var(--ink-900);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 36px;
  color: var(--white);
  transition: transform .35s ease;
  isolation: isolate;
}
.category-card img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: -2;
  transition: transform .5s ease;
}
.category-card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10,46,31,.9) 100%);
  z-index: -1;
}
.category-card:hover { transform: translateY(-6px); }
.category-card:hover img { transform: scale(1.06); }
.category-card h3 { color: var(--white); font-size: 1.75rem; margin-bottom: 8px; }
.category-card p { color: rgba(255,255,255,.85); margin-bottom: 20px; max-width: 420px; }
.category-card .card-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; color: var(--green-400);
  font-size: 15px;
}
.category-card .card-link::after {
  content: '→'; transition: transform .2s;
}
.category-card:hover .card-link::after { transform: translateX(6px); }

/* ---------- Why us strip ---------- */
.whyus {
  background: var(--ink-900);
  color: var(--white);
}
.whyus h2 { color: var(--white); }
.whyus p.lead { color: rgba(255,255,255,.75); }
.whyus .eyebrow { background: rgba(34,197,94,.15); color: var(--green-400); }
.whyus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  margin-top: 56px;
}
.whyus-item { }
.whyus-item .num {
  font-size: 2.5rem; font-weight: 800;
  color: var(--green-400);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  display: block;
}
.whyus-item h4 { color: var(--white); margin-bottom: 8px; }
.whyus-item p { color: rgba(255,255,255,.65); font-size: 15px; }

/* ---------- Calculator ---------- */
.calc-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow);
}
@media (max-width: 900px) {
  .calc-wrap { grid-template-columns: 1fr; padding: 32px; gap: 32px; }
}
.calc-form .field { margin-bottom: 20px; }
.calc-form label {
  display: block; font-weight: 600; font-size: 14px;
  color: var(--ink-700); margin-bottom: 8px;
}
.calc-form input,
.calc-form select {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--ink-300);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: border-color .2s;
  background: var(--white);
}
.calc-form input:focus,
.calc-form select:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(34,197,94,.15);
}
.calc-result {
  background: linear-gradient(135deg, var(--green-700), var(--green-800));
  color: var(--white);
  border-radius: var(--radius);
  padding: 32px;
}
.calc-result h3 { color: var(--white); margin-bottom: 20px; font-size: 1.1rem; }
.result-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.result-row:last-child { border-bottom: none; }
.result-row .label { color: rgba(255,255,255,.8); font-size: 14px; }
.result-row .value { font-size: 1.5rem; font-weight: 700; color: var(--white); }
.result-row .value.big { font-size: 2rem; color: var(--green-400); }
.calc-note { font-size: 12px; color: rgba(255,255,255,.6); margin-top: 20px; }

/* ---------- FAQ accordion ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--white);
  transition: border-color .2s;
}
.faq-item.open { border-color: var(--green-500); }
.faq-q {
  width: 100%;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 28px;
  font-size: 16px; font-weight: 600; text-align: left;
  color: var(--ink-900);
}
.faq-q .chev { transition: transform .3s; color: var(--green-600); }
.faq-item.open .chev { transform: rotate(180deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  padding: 0 28px;
  color: var(--ink-500);
}
.faq-item.open .faq-a { max-height: 400px; padding: 0 28px 24px; }

/* ---------- Product catalog ---------- */
.catalog-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  margin-top: 40px;
}
@media (max-width: 900px) { .catalog-layout { grid-template-columns: 1fr; } }
.filters {
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  padding: 24px;
  position: sticky;
  top: calc(var(--nav-h) + 20px);
  align-self: start;
}
.filters h4 { margin-bottom: 16px; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; color: var(--ink-500); }
.filter-group { margin-bottom: 24px; }
.filter-group label {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 0;
  font-size: 14px; cursor: pointer; color: var(--ink-700);
}
.filter-group label:hover { color: var(--green-700); }
.search-box {
  position: relative;
  margin-bottom: 24px;
}
.search-box input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border: 1.5px solid var(--ink-300);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
}
.search-box input:focus { outline: none; border-color: var(--green-500); }
.search-box svg {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; color: var(--ink-500);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--green-300, #86efac); }
.product-thumb {
  aspect-ratio: 4/3;
  background: var(--ink-50);
  overflow: hidden;
  position: relative;
}
.product-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .product-thumb img { transform: scale(1.06); }
.product-tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--green-600); color: var(--white);
  font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: 999px;
  letter-spacing: .5px; text-transform: uppercase;
}
.product-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.product-body .cat { font-size: 12px; color: var(--green-700); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; }
.product-body h4 { margin: 6px 0 10px; }
.product-body p { color: var(--ink-500); font-size: 14px; flex: 1; margin-bottom: 14px; }
.product-cta {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--green-700); font-weight: 600; font-size: 14px;
}
.product-cta:hover { color: var(--green-800); }

.empty-state { text-align: center; padding: 80px 20px; color: var(--ink-500); }

/* ---------- Solar products / spec list ---------- */
.specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 48px;
}
.spec-card {
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  padding: 32px;
  transition: all .3s;
}
.spec-card:hover { border-color: var(--green-500); box-shadow: var(--shadow); }
.spec-card .badge {
  display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: 1px; text-transform: uppercase;
  color: var(--green-700); background: var(--green-50);
  padding: 4px 10px; border-radius: 999px; margin-bottom: 16px;
}
.spec-card h3 { margin-bottom: 8px; }
.spec-card > p { color: var(--ink-500); margin-bottom: 20px; font-size: 15px; }
.spec-card ul { list-style: none; padding: 0; }
.spec-card li {
  padding: 8px 0;
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--ink-700);
  border-top: 1px solid var(--ink-100);
}
.spec-card li::before {
  content: '✓'; color: var(--green-600); font-weight: 800; flex-shrink: 0;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 56px;
  counter-reset: step;
}
.step {
  padding: 32px 24px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--ink-100);
  position: relative;
  counter-increment: step;
}
.step::before {
  content: counter(step, decimal-leading-zero);
  font-size: 2.25rem; font-weight: 800;
  color: var(--green-500);
  display: block; line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.step h4 { margin-bottom: 8px; }
.step p { color: var(--ink-500); font-size: 14px; }

/* ---------- Contact / Form ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 900px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-info {
  background: linear-gradient(135deg, var(--green-800), var(--ink-900));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.contact-info h2 { color: var(--white); margin-bottom: 16px; }
.contact-info p { color: rgba(255,255,255,.8); margin-bottom: 32px; }
.contact-item {
  display: flex; gap: 16px; align-items: center;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.1);
}
.contact-item:first-of-type { border-top: none; }
.contact-item .ci-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(34,197,94,.2);
  color: var(--green-400);
  display: grid; place-items: center; flex-shrink: 0;
}
.contact-item strong { display: block; color: var(--white); font-size: 15px; }
.contact-item span { color: rgba(255,255,255,.65); font-size: 14px; }
.contact-item a:hover { color: var(--green-400); }

form.contact-form {
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 48px;
}
form.contact-form .field { margin-bottom: 20px; }
form.contact-form label {
  display: block; font-weight: 600; font-size: 14px;
  color: var(--ink-700); margin-bottom: 8px;
}
form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--ink-300);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  background: var(--white);
  transition: border-color .2s;
}
form.contact-form textarea { min-height: 130px; resize: vertical; }
form.contact-form input:focus,
form.contact-form select:focus,
form.contact-form textarea:focus {
  outline: none; border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(34,197,94,.15);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.form-success {
  display: none;
  background: var(--green-50);
  border: 1px solid var(--green-500);
  color: var(--green-800);
  padding: 16px; border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
}
.form-success.show { display: block; }
.form-error {
  display: none;
  background: #fef2f2;
  border: 1px solid #f87171;
  color: #991b1b;
  padding: 16px; border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
}
.form-error.show { display: block; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--green-700), var(--green-900));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 80% 20%, rgba(34,197,94,.3), transparent 60%);
  pointer-events: none;
}
.cta-band h2 { color: var(--white); max-width: 620px; margin: 0 auto 16px; position: relative; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 560px; margin: 0 auto 28px; position: relative; }
.cta-band .btn { position: relative; }

/* ---------- Footer ---------- */
.footer {
  background: var(--ink-900);
  color: rgba(255,255,255,.7);
  padding: 72px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h5 {
  color: var(--white);
  font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.5px;
  margin-bottom: 20px;
}
.footer ul { list-style: none; padding: 0; }
.footer li { margin-bottom: 10px; font-size: 14px; }
.footer a:hover { color: var(--green-400); }
.footer .logo { color: var(--white); margin-bottom: 16px; }

/* Logo image */
.logo-img {
  height: 46px;
  width: auto;
  display: block;
  object-fit: contain;
}
.footer-logo-img {
  height: 60px;
  background: white;
  border-radius: 8px;
  padding: 4px 8px;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-size: 13px;
}

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: white;
  display: grid; place-items: center;
  box-shadow: 0 10px 25px -5px rgba(37,211,102,.5);
  z-index: 90;
  transition: transform .25s;
}
.wa-float:hover { transform: scale(1.1); }
.wa-float svg { width: 32px; height: 32px; fill: white; }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-24 { margin-top: 24px; }
.mt-48 { margin-top: 48px; }
.gradient-text {
  background: linear-gradient(135deg, var(--green-600), var(--blue-500));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: all .6s ease; }
.reveal.in { opacity: 1; transform: none; }