/* ============================================================
   Estudio Contable & Jurídico — Landing Page
   Paleta seria: azul marino profundo + dorado sobrio + grises neutros
   ============================================================ */

:root {
  --color-navy-950: #0b1526;
  --color-navy-900: #0f1e33;
  --color-navy-800: #16294a;
  --color-navy-700: #1f3a63;
  --color-gold-500: #b48b3c;
  --color-gold-400: #c9a35c;
  --color-ink-900: #14181f;
  --color-ink-700: #3a4250;
  --color-ink-500: #6b7280;
  --color-line: #e4e7ec;
  --color-bg: #ffffff;
  --color-bg-alt: #f6f7f9;

  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-width: 1180px;
  --radius: 6px;
  --shadow-sm: 0 1px 2px rgba(15, 30, 51, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 30, 51, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink-900);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--color-navy-900);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; color: var(--color-ink-700); }

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

ul { list-style: none; margin: 0; padding: 0; }

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

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-gold-500);
  margin-bottom: 0.75em;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85em 1.6em;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--color-navy-900);
  color: #fff;
}
.btn-primary:hover { background: var(--color-navy-800); }

.btn-ghost {
  background: transparent;
  border-color: var(--color-navy-900);
  color: var(--color-navy-900);
}
.btn-ghost:hover { background: var(--color-navy-900); color: #fff; }

.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--color-navy-900);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-navy-900);
  color: var(--color-gold-400);
  font-family: var(--font-serif);
  font-weight: 700;
  border-radius: 4px;
  flex-shrink: 0;
}

.brand-name { font-size: 1.02rem; letter-spacing: -0.01em; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-ink-700);
}

.main-nav a:hover { color: var(--color-navy-900); }

.nav-cta {
  background: var(--color-navy-900);
  color: #fff !important;
  padding: 0.6em 1.3em;
  border-radius: var(--radius);
  font-weight: 600;
}
.nav-cta:hover { background: var(--color-navy-800); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-navy-900);
  border-radius: 2px;
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, #ffffff 100%);
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--color-line);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  margin-bottom: 0.4em;
}

.hero-lead {
  font-size: 1.08rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin: 28px 0 36px;
}

.hero-trust {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-line);
  padding-top: 24px;
  font-size: 0.9rem;
  color: var(--color-ink-500);
}
.hero-trust strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-navy-900);
}

.hero-panel {
  background: var(--color-navy-900);
  border-radius: 10px;
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.hero-panel-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #eef1f6;
  font-size: 0.95rem;
}
.hero-panel-row:last-child { border-bottom: none; }
.hero-panel-row .ok { color: var(--color-gold-400); font-size: 0.8rem; }

/* ===== Clients strip ===== */
.clients-strip {
  padding: 36px 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-line);
}
.clients-strip p {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-ink-500);
  margin-bottom: 18px;
}
.clients-logos {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-ink-500);
  font-size: 1.05rem;
}

/* ===== Section shared ===== */
section { padding: 96px 0; }

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head h2 { font-size: clamp(1.6rem, 2.4vw, 2.1rem); }
.section-lead { font-size: 1.02rem; }

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  padding: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #fff;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.service-icon {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-gold-500);
  margin-bottom: 16px;
}
.service-card h3 { font-size: 1.12rem; margin-bottom: 0.5em; }
.service-card p { font-size: 0.95rem; margin: 0; }

/* ===== About ===== */
.about {
  background: var(--color-navy-950);
  color: #fff;
}
.about h2, .about .eyebrow { color: #fff; }
.about .eyebrow { color: var(--color-gold-400); }
.about p { color: #c6cddb; }

.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}

.about-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 14px;
  font-size: 0.97rem;
  color: #dfe4ee;
}
.about-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-gold-400);
  font-weight: 700;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.stat {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--color-gold-400);
  font-weight: 700;
}
.stat-label {
  font-size: 0.85rem;
  color: #b9c1d1;
}

/* ===== Team ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.team-card { text-align: center; }
.team-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--color-navy-800), var(--color-navy-700));
}
.team-card h3 { font-size: 1.1rem; margin-bottom: 0.2em; }
.team-role {
  color: var(--color-gold-500);
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 0.6em;
}
.team-bio { font-size: 0.92rem; }

/* ===== Testimonials ===== */
.testimonials { background: var(--color-bg-alt); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial {
  margin: 0;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
}
.testimonial p {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  color: var(--color-ink-900);
  margin-bottom: 1.2em;
}
.testimonial footer {
  font-size: 0.85rem;
  color: var(--color-ink-500);
  font-weight: 600;
}

/* ===== Contact ===== */
.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
}

.contact-details { margin-top: 24px; }
.contact-details li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.95rem;
  color: var(--color-ink-700);
}
.contact-details strong { color: var(--color-navy-900); }

.contact-form {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: 10px;
  padding: 36px;
}

.form-row { margin-bottom: 18px; }
.form-row-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-navy-900);
  margin-bottom: 6px;
}

input, select, textarea {
  width: 100%;
  padding: 0.75em 0.9em;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  color: var(--color-ink-900);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-navy-700);
  box-shadow: 0 0 0 3px rgba(31, 58, 99, 0.12);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-ink-700);
  margin-bottom: 20px;
}
.form-checkbox input { width: auto; margin-top: 3px; }
.form-checkbox a { color: var(--color-navy-800); text-decoration: underline; }

.form-status {
  margin: 14px 0 0;
  font-size: 0.9rem;
  font-weight: 600;
}
.form-status.success { color: #1a7f4b; }
.form-status.error { color: #b3261e; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-navy-950);
  color: #b9c1d1;
  padding: 64px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-brand .brand-name { color: #fff; }
.footer-brand p { font-size: 0.88rem; color: #93a0b7; max-width: 32ch; }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.footer-links h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  font-size: 0.9rem;
  color: #b9c1d1;
  margin-bottom: 12px;
}
.footer-links a:hover { color: var(--color-gold-400); }

.footer-bottom {
  padding: 24px 0;
  font-size: 0.82rem;
  color: #7c879c;
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-inner,
  .about-inner,
  .contact-inner {
    grid-template-columns: 1fr;
  }
  .services-grid,
  .team-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 20px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-line);
  }
  .main-nav a:last-child { border-bottom: none; }
  .nav-cta { margin-top: 12px; text-align: center; }
  .nav-toggle { display: flex; }

  .services-grid,
  .team-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .form-row-group { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .hero { padding: 56px 0 48px; }
}