/* ===== AeroHow — Design tokens ===== */
:root {
  --navy: #023660;
  --navy-deep: #031f38;
  --navy-soft: #0a4b7a;
  --green: #77c900;
  --green-deep: #5a9700;
  --bg: #f6f8f9;
  --bg-alt: #eef3f5;
  --panel: #ffffff;
  --border: #dde6ec;
  --text: #0b2233;
  --text-secondary: #55697a;
  --text-muted: #8697a3;
  --radius: 4px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-deep);
  line-height: 1.2;
  margin: 0 0 0.6em;
  font-weight: 600;
}

h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; }

p { color: var(--text-secondary); margin: 0 0 1em; max-width: 62ch; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--navy-soft);
  font-weight: 500;
  letter-spacing: 0.01em;
  margin-bottom: 0.9em;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--green);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-deep); }
.btn-accent { background: var(--green); color: var(--navy-deep); }
.btn-accent:hover { background: var(--green-deep); color: #fff; }
.btn-ghost { border-color: var(--border); color: var(--navy-deep); background: transparent; }
.btn-ghost:hover { border-color: var(--navy); }
.btn-ghost-light { border-color: rgba(255,255,255,0.35); color: #fff; background: transparent; }
.btn-ghost-light:hover { border-color: #fff; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 248, 249, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.brand-logo { height: 34px; }
.main-nav { display: flex; align-items: center; gap: 22px; }
.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 4px 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--green);
  transition: right 0.2s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after { right: 0; }
.main-nav a.active { color: var(--navy-deep); }
.nav-cta { display: flex; align-items: center; gap: 20px; }
.nav-toggle { display: none; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 80px 0 96px;
  background: var(--navy);
  color: #fff;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, transparent, black 25%, black 75%, transparent);
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.75fr;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--green);
  font-weight: 500;
  margin-bottom: 1.1em;
}
.hero-eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--green); }
.hero h1 { color: #fff; margin-bottom: 0.45em; }
.hero p.lede { color: #cfe0eb; font-size: 1.08rem; max-width: 52ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 2em; flex-wrap: wrap; }
.hero-coords {
  position: absolute;
  bottom: 22px;
  left: 32px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.04em;
}

.hero-panel {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-mark {
  width: 78%;
  filter: brightness(0) invert(1);
  opacity: 0.94;
}
.hero-ring {
  position: absolute;
  inset: 6%;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 50%;
}
.hero-ring.inner { inset: 20%; border-color: rgba(119,201,0,0.35); }
.hero-waypoint {
  position: absolute;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
}

/* ===== Pillars ===== */
.pillars {
  padding: 88px 0;
}
.pillars-head { max-width: 640px; margin-bottom: 52px; }
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.pillar {
  padding: 34px 30px 34px 0;
  border-right: 1px solid var(--border);
  padding-left: 30px;
}
.pillar:first-child { padding-left: 0; }
.pillar:last-child { border-right: none; }
.pillar-index {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--green-deep);
  font-weight: 600;
  margin-bottom: 14px;
  display: block;
}
.pillar h3 { margin-bottom: 0.5em; }
.pillar p { margin-bottom: 0; font-size: 0.95rem; }

/* ===== Services preview / grid ===== */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.service-card {
  background: var(--panel);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-card .tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--navy-soft);
  text-transform: none;
  letter-spacing: 0.01em;
}
.service-card h3 { margin-bottom: 0; }
.service-card p { font-size: 0.94rem; margin-bottom: 0; }
.service-card ul { margin: 6px 0 0; padding-left: 18px; color: var(--text-secondary); font-size: 0.9rem; }
.service-card li { margin-bottom: 4px; }

/* ===== Stat band ===== */
.stat-band {
  background: var(--navy-deep);
  color: #fff;
  padding: 56px 0;
}
.stat-band .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.stat { border-left: 1px solid rgba(255,255,255,0.16); padding-left: 22px; }
.stat .num { font-family: var(--font-display); font-size: 2.1rem; color: var(--green); display: block; margin-bottom: 6px; }
.stat p { color: rgba(255,255,255,0.72); margin: 0; font-size: 0.92rem; }

/* ===== Process / how we work ===== */
.process-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}
.process-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
}
.process-item .step {
  font-family: var(--font-display);
  color: var(--text-muted);
  font-size: 0.85rem;
}
.process-item h3 { margin-bottom: 6px; }
.process-item p { margin-bottom: 0; }

/* ===== Partner section ===== */
.partner-banner {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
}
.partner-banner h3 { margin-bottom: 10px; }
.partner-banner p { margin-bottom: 0; }
.partner-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 40px;
}
.partner-card {
  background: var(--panel);
  padding: 30px 26px;
}
.partner-card .field { font-size: 0.72rem; font-weight: 600; color: var(--green-deep); margin-bottom: 10px; display: block; }
.partner-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.partner-card p { font-size: 0.92rem; margin-bottom: 0; }
.partner-note {
  margin-top: 28px;
  padding: 18px 22px;
  border-left: 3px solid var(--green);
  background: var(--bg-alt);
  font-size: 0.92rem;
  color: var(--text-secondary);
}
.partner-note strong { color: var(--navy-deep); }

/* ===== CTA banner ===== */
.cta-banner {
  background: var(--navy);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}
.cta-banner h2 { color: #fff; }
.cta-banner p { color: #cfe0eb; margin: 0 auto 1.6em; }
.cta-banner .hero-actions { justify-content: center; }

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-logo { height: 30px; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer-grid p { color: rgba(255,255,255,0.55); font-size: 0.9rem; }
.footer-col h4 { color: #fff; font-size: 0.85rem; margin-bottom: 16px; font-family: var(--font-body); font-weight: 600; }
.footer-col a { display: block; color: rgba(255,255,255,0.65); font-size: 0.9rem; margin-bottom: 10px; }
.footer-col a:hover { color: var(--green); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== Page header (inner pages) ===== */
.page-header {
  background: var(--navy);
  color: #fff;
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}
.page-header .container { position: relative; }
.page-header h1 { color: #fff; margin-bottom: 0.3em; }
.page-header p { color: #cfe0eb; max-width: 60ch; margin-bottom: 0; }

/* ===== Forms ===== */
.form-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 40px;
}
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-deep);
  margin-bottom: 8px;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #fff;
  color: var(--text);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--navy-soft);
}
.form-row textarea { resize: vertical; min-height: 130px; }
.form-status { font-size: 0.9rem; margin-top: 14px; display: none; }
.form-status.ok { color: var(--green-deep); display: block; }
.form-status.err { color: #b03a2e; display: block; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info-card {
  padding: 8px 0;
}
.contact-line {
  display: flex;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.contact-line .label { font-size: 0.78rem; color: var(--text-muted); display: block; margin-bottom: 4px; }
.contact-line .value { color: var(--navy-deep); font-weight: 600; }

/* ===== About page ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.credential-list { list-style: none; padding: 0; margin: 24px 0 0; }
.credential-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.credential-list li::before {
  content: "";
  width: 6px; height: 6px;
  margin-top: 8px;
  background: var(--green);
  flex-shrink: 0;
}

/* ===== WhatsApp flutuante ===== */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 200;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}
.whatsapp-float svg { width: 28px; height: 28px; }
@media (max-width: 900px) {
  .whatsapp-float { right: 16px; bottom: 16px; width: 50px; height: 50px; }
}

/* ===== Mobile ===== */
@media (max-width: 900px) {
  .main-nav, .nav-cta .btn-ghost { display: none; }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border: 1px solid var(--border);
    background: none;
    border-radius: var(--radius);
    cursor: pointer;
  }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
    content: ""; display: block; width: 18px; height: 2px; background: var(--navy-deep); position: relative;
  }
  .nav-toggle span::before { position: absolute; top: -6px; }
  .nav-toggle span::after { position: absolute; top: 6px; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 84px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 20px 32px 28px;
    gap: 18px;
  }
  .hero .container { grid-template-columns: 1fr; }
  .hero-panel { display: none; }
  .pillar-grid, .service-grid, .stat-band .container, .partner-grid, .footer-grid, .contact-grid, .about-grid {
    grid-template-columns: 1fr;
  }
  .pillar { border-right: none; border-bottom: 1px solid var(--border); padding-left: 0; }
  .stat { border-left: none; border-top: 1px solid rgba(255,255,255,0.16); padding-left: 0; padding-top: 16px; }
  .partner-banner { grid-template-columns: 1fr; }
  .process-item { grid-template-columns: 60px 1fr; }
}