/* ============================================
   FLUXEN ADVISORY — Design system
   Basado en Brand Manual v1.0
   ============================================ */

:root {
  --blue: #1565C0;
  --blue-dark: #0D47A1;
  --blue-light: #E6F1FB;
  --green: #43A047;
  --green-light: #EAF3DE;
  --navy: #0D1B2A;
  --slate: #6B7A8D;
  --cloud: #F5F7FA;
  --white: #FFFFFF;
  --border: rgba(13, 27, 42, 0.08);
  --border-strong: rgba(13, 27, 42, 0.14);
  --shadow: 0 4px 24px rgba(13, 27, 42, 0.06);
  --shadow-lg: 0 12px 40px rgba(13, 27, 42, 0.12);
  --radius: 14px;
  --max: 1160px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(32px, 5vw, 52px); }
h2 { font-size: clamp(26px, 3.4vw, 36px); }
h3 { font-size: 19px; }

p { color: var(--slate); }

.lede {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--slate);
  max-width: 640px;
  line-height: 1.6;
}

blockquote {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-style: italic;
  font-size: 20px;
  color: var(--navy);
  border-left: 3px solid var(--green);
  padding-left: 20px;
  margin: 28px 0;
  line-height: 1.6;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--green);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(67, 160, 69, 0.28);
}
.btn-primary:hover { background: #388e3c; }

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border-strong);
}
.btn-secondary:hover { border-color: var(--navy); }

.btn-light {
  background: var(--white);
  color: var(--navy);
}

.btn-block { width: 100%; justify-content: center; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-word {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-word .b1 {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--navy);
}

.brand-word .b2 {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--blue);
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a:not(.btn) {
  font-size: 14px;
  font-weight: 500;
  color: var(--navy);
  opacity: 0.75;
  transition: opacity .15s;
}
.nav-links a:not(.btn):hover { opacity: 1; }

.nav-cta { display: flex; align-items: center; gap: 14px; }

.lang-switch {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--navy);
  opacity: .68;
  padding: 6px 11px;
  border: 1.5px solid var(--border-strong);
  border-radius: 999px;
  transition: opacity .15s, border-color .15s;
}
.lang-switch:hover { opacity: 1; border-color: var(--navy); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: all .2s;
}

/* ---------- Hero ---------- */
.hero {
  padding: 76px 0 60px;
  background:
    radial-gradient(circle at 85% 0%, var(--blue-light) 0%, transparent 45%),
    var(--white);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 30px 0 34px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--slate);
}
.hero-trust li { display: flex; align-items: center; gap: 8px; list-style: none; }
.hero-trust svg { flex-shrink: 0; }

.hero-visual {
  background: var(--navy);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.hero-visual::before {
  content: '';
  position: absolute;
  width: 220px; height: 220px;
  background: var(--blue);
  border-radius: 50%;
  opacity: 0.25;
  filter: blur(50px);
  top: -60px; right: -60px;
}

.hv-label { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: #8fa3bc; margin-bottom: 18px; font-weight: 700; }

.hv-metric { display: flex; justify-content: space-between; align-items: baseline; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.hv-metric:last-of-type { border-bottom: none; }
.hv-metric .k { font-size: 13px; color: #cdd7e3; }
.hv-metric .v { font-size: 15px; font-weight: 700; color: var(--white); }
.hv-metric .v.up { color: #66bb6a; }

.hv-bar-track { height: 6px; background: rgba(255,255,255,0.1); border-radius: 4px; margin-top: 20px; overflow: hidden; }
.hv-bar-fill { height: 100%; background: var(--green); border-radius: 4px; }

.hv-caption { font-size: 12px; color: #8fa3bc; margin-top: 18px; line-height: 1.5; }

/* ---------- Section basics ---------- */
section { padding: 88px 0; }
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.bg-cloud { background: var(--cloud); }
.bg-navy { background: var(--navy); }
.bg-navy h2, .bg-navy h3 { color: var(--white); }
.bg-navy p { color: #b8c4d3; }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s, transform .2s;
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.service-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 20px;
  margin-bottom: 18px;
  width: fit-content;
}
.tag-scan { background: var(--blue-light); color: var(--blue-dark); }
.tag-pilot { background: var(--green-light); color: #2e6b31; }
.tag-scale { background: #FAEEDA; color: #7a4b0a; }

.service-card h3 { margin-bottom: 6px; }
.service-sub { font-size: 13px; color: var(--slate); font-weight: 600; margin-bottom: 14px; }
.service-card p.desc { font-size: 14.5px; margin-bottom: 20px; }

.service-list { list-style: none; margin-bottom: 24px; flex: 1; }
.service-list li {
  font-size: 13.5px;
  color: var(--navy);
  padding-left: 22px;
  position: relative;
  margin-bottom: 10px;
  line-height: 1.5;
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.service-card .btn { align-self: flex-start; }

/* ---------- Process ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: step;
}
.process-step {
  position: relative;
  padding: 26px 22px 22px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.process-num {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 34px;
  font-weight: 700;
  color: var(--blue-light);
  -webkit-text-stroke: 1.5px var(--blue);
  margin-bottom: 14px;
  line-height: 1;
}
.process-step h4 { font-size: 15px; margin-bottom: 8px; }
.process-step p { font-size: 13.5px; }

/* ---------- Why us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.why-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
}
.why-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--blue);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.why-card h4 { color: var(--white); font-size: 15.5px; margin-bottom: 6px; }
.why-card p { font-size: 13.5px; }

/* ---------- About / founder ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 52px;
  align-items: center;
}
.about-photo {
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--blue) 0%, var(--navy) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.9);
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 15px;
  text-align: center;
  padding: 30px;
  box-shadow: var(--shadow-lg);
}
.about-name { font-size: 14px; font-weight: 700; color: var(--slate); letter-spacing: .3px; margin-bottom: 8px; }
.about-role { font-size: 13px; color: var(--slate); margin-bottom: 22px; }

/* ---------- Blog ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.post-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s, transform .2s;
}
.post-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.post-thumb {
  height: 130px;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
}
.post-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.post-cat { font-size: 11px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--blue); margin-bottom: 10px; }
.post-body h3 { font-size: 16.5px; margin-bottom: 10px; line-height: 1.35; }
.post-body p { font-size: 13.5px; flex: 1; margin-bottom: 16px; }
.post-link { font-size: 13.5px; font-weight: 700; color: var(--navy); display: inline-flex; align-items: center; gap: 6px; }
.post-link svg { transition: transform .15s; }
.post-card:hover .post-link svg { transform: translateX(3px); }

/* ---------- Final CTA ---------- */
.cta-final {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  color: var(--white);
}
.cta-final h2 { color: var(--white); margin-bottom: 14px; }
.cta-final p { color: #dbe8fa; max-width: 480px; margin: 0 auto 30px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); padding: 56px 0 26px; color: #94a5ba; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand p { color: #94a5ba; font-size: 13.5px; margin-top: 14px; max-width: 260px; }
.footer-col h5 { color: var(--white); font-size: 13px; letter-spacing: .5px; text-transform: uppercase; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13.5px; color: #94a5ba; margin-bottom: 11px; transition: color .15s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 22px; font-size: 12.5px; flex-wrap: wrap; gap: 10px; }

/* ---------- WhatsApp floating button ---------- */
.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(37,211,102,0.4);
  z-index: 200;
  transition: transform .2s;
}
.wa-float:hover { transform: scale(1.08); }

/* ---------- Article page ---------- */
.article-hero { padding: 56px 0 20px; }
.article-meta { display: flex; gap: 16px; align-items: center; font-size: 13px; color: var(--slate); margin: 18px 0 8px; }
.article-body { max-width: 700px; margin: 0 auto; padding: 20px 0 80px; }
.article-body h2 { margin: 40px 0 16px; font-size: 24px; }
.article-body h3 { margin: 28px 0 12px; }
.article-body p { margin-bottom: 18px; font-size: 16px; color: #33414f; line-height: 1.75; }
.article-body ul, .article-body ol { margin: 0 0 18px 22px; color: #33414f; }
.article-body li { margin-bottom: 8px; font-size: 16px; line-height: 1.65; }
.article-cta {
  margin-top: 48px;
  padding: 32px;
  background: var(--cloud);
  border-radius: var(--radius);
  text-align: center;
}
.article-cta h3 { margin-bottom: 10px; }
.article-cta p { margin-bottom: 20px; }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; color: var(--blue); margin-bottom: 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 440px; }
  .services-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 260px; margin: 0 auto; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 18px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { padding: 10px 0; width: 100%; opacity: 1; }
  .menu-toggle { display: block; }
  .nav { position: relative; }
  section { padding: 60px 0; }
  .cta-final { padding: 44px 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}