/* ==========================================================================
   Aliado Tax — Design System
   ========================================================================== */

:root {
  --navy-900: #0a2540;
  --navy-800: #0e3358;
  --navy-700: #12406e;
  --teal-600: #0f9d8c;
  --teal-500: #16b39f;
  --gold-500: #f2a93b;
  --gold-600: #e0932a;
  --bg-light: #f6f9fb;
  --bg-white: #ffffff;
  --text-900: #16212e;
  --text-600: #4b5768;
  --text-400: #7c8798;
  --border-200: #e4e9ef;
  --success-bg: #e9f8f2;
  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 37, 64, 0.10);
  --shadow-lg: 0 20px 48px rgba(10, 37, 64, 0.16);
  --max-width: 1180px;
}

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

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-900);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Poppins', 'Inter', sans-serif;
  color: var(--navy-900);
  line-height: 1.25;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
p { margin: 0 0 1em; color: var(--text-600); }
a { color: var(--teal-600); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; display: block; }
ul { padding-left: 1.2em; color: var(--text-600); }

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

.section { padding: 72px 0; }
.section-sm { padding: 40px 0; }
.bg-light { background: var(--bg-light); }
.bg-navy { background: linear-gradient(135deg, var(--navy-900), var(--navy-700)); color: #fff; }
.bg-navy h1, .bg-navy h2, .bg-navy h3 { color: #fff; }
.bg-navy p { color: rgba(255,255,255,0.82); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal-600);
  margin-bottom: 12px;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-60 { max-width: 640px; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--gold-500); color: var(--navy-900); box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--gold-600); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-outline-navy { background: transparent; border-color: var(--navy-700); color: var(--navy-800); }
.btn-outline-navy:hover { background: var(--navy-900); color: #fff; }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

/* ---------------- Header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border-200);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--navy-900);
}
.brand svg { width: 34px; height: 34px; flex-shrink: 0; }
.brand span.accent { color: var(--teal-600); }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  color: var(--text-900);
  font-weight: 500;
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--teal-600); text-decoration: none; }

.header-actions { display: flex; align-items: center; gap: 14px; }
.phone-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--navy-900);
  font-size: 0.92rem;
}
.phone-pill svg { width: 18px; height: 18px; color: var(--teal-600); }

.lang-switch {
  display: flex;
  border: 1px solid var(--border-200);
  border-radius: 999px;
  overflow: hidden;
  font-size: 0.78rem;
  font-weight: 700;
}
.lang-switch a { padding: 6px 12px; color: var(--text-600); }
.lang-switch a.active { background: var(--navy-900); color: #fff; }
.lang-switch a:hover { text-decoration: none; background: var(--bg-light); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle svg { width: 26px; height: 26px; color: var(--navy-900); }

/* ---------------- Hero ---------------- */
.hero {
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
}
.badge svg { width: 16px; height: 16px; color: var(--teal-500); }
.badge-light { background: var(--success-bg); border: 1px solid #cdeee2; color: var(--navy-900); }
.badge-light svg { color: var(--teal-600); }

.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  color: var(--text-900);
}
.hero-card h3 { margin-bottom: 4px; }
.hero-card .form-row { margin-bottom: 14px; }

/* ---------------- Trust bar ---------------- */
.trust-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 28px 0;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.trust-item svg { width: 26px; height: 26px; color: var(--teal-600); flex-shrink: 0; margin-top: 2px; }
.trust-item strong { display: block; color: var(--navy-900); font-size: 0.95rem; }
.trust-item span.desc { font-size: 0.85rem; color: var(--text-400); }

/* ---------------- Cards / grid ---------------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.card {
  background: #fff;
  border: 1px solid var(--border-200);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--success-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 26px; height: 26px; color: var(--teal-600); }
.card a.card-link { font-weight: 600; font-size: 0.9rem; }

/* ---------------- Process steps ---------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step {
  position: relative;
  padding: 28px 22px 22px;
  background: #fff;
  border: 1px solid var(--border-200);
  border-radius: var(--radius-lg);
}
.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy-900);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 16px;
}

/* ---------------- FAQ ---------------- */
.faq-item {
  border-bottom: 1px solid var(--border-200);
  padding: 18px 0;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--navy-900);
  gap: 16px;
}
.faq-question svg { width: 20px; height: 20px; flex-shrink: 0; transition: transform 0.2s ease; color: var(--teal-600); }
.faq-item.open .faq-question svg { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-item.open .faq-answer { max-height: 600px; }
.faq-answer p { padding-top: 12px; }

/* ---------------- Forms ---------------- */
.form-row { margin-bottom: 16px; }
label { display: block; font-weight: 600; font-size: 0.88rem; margin-bottom: 6px; color: var(--navy-900); }
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border-200);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  color: var(--text-900);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--teal-500);
}
.form-note { font-size: 0.78rem; color: var(--text-400); margin-top: 10px; }
.form-success, .form-error {
  display: none;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-top: 14px;
}
.form-success { background: var(--success-bg); color: #0a6b52; border: 1px solid #cdeee2; }
.form-error { background: #fdecec; color: #a1281f; border: 1px solid #f6cccc; }

/* ---------------- CTA banner ---------------- */
.cta-banner {
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
}
.cta-banner .btn { margin-top: 8px; }

/* ---------------- Footer ---------------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,0.75); padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 32px; margin-bottom: 36px; }
.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
.site-footer a { color: rgba(255,255,255,0.72); font-size: 0.9rem; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: rgba(255,255,255,0.55);
}
.disclaimer {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  max-width: 720px;
  margin-top: 14px;
  line-height: 1.6;
}
.social-row { display: flex; gap: 12px; margin-top: 4px; }
.social-row a {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  display: flex; align-items: center; justify-content: center;
}
.social-row svg { width: 16px; height: 16px; }

/* ---------------- Page hero (inner pages) ---------------- */
.page-hero { padding: 48px 0 40px; }
.breadcrumb { font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-bottom: 10px; }
.breadcrumb a { color: rgba(255,255,255,0.85); }

/* Sticky mobile CTA */
.sticky-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--navy-900);
  padding: 12px 18px;
  display: none;
  z-index: 200;
  box-shadow: 0 -6px 20px rgba(0,0,0,0.15);
}
.sticky-cta .btn { width: 100%; }

/* ---------------- Reveal animation ---------------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------------- Responsive ---------------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .trust-bar { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .main-nav, .header-actions .phone-pill { display: none; }
  .nav-toggle { display: block; }
  .main-nav.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-200);
    box-shadow: var(--shadow-md);
    gap: 16px;
  }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .trust-bar { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .cta-banner { padding: 34px 22px; }
  .sticky-cta { display: block; }
  body { padding-bottom: 74px; }
  .section { padding: 52px 0; }
}