:root {
  --primary: #163d8f;
  --primary-dark: #0f2b65;
  --accent: #12b3c7;
  --accent-dark: #0d8fa2;
  --surface: #ffffff;
  --surface-alt: #f4f7fb;
  --surface-soft: #eaf4ff;
  --text: #18212f;
  --muted: #667085;
  --border: rgba(22, 61, 143, 0.12);
  --shadow: 0 18px 45px rgba(15, 43, 101, 0.12);
  --shadow-soft: 0 10px 28px rgba(15, 43, 101, 0.08);
  --radius: 24px;
  --radius-sm: 16px;
  --max-width: 1180px;
  --nav-height: 84px;
  --transition: 220ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(18, 179, 199, 0.14), transparent 26%),
    linear-gradient(180deg, #f9fbff 0%, #edf4fb 100%);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

main {
  overflow: hidden;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.section {
  padding: 4.5rem 0;
}

.section-header {
  max-width: 720px;
  margin-bottom: 2rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  margin-bottom: 1rem;
  border-radius: 999px;
  background: rgba(18, 179, 199, 0.12);
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.8rem;
  line-height: 1.15;
  color: var(--primary-dark);
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.7rem);
}

h2 {
  font-size: clamp(1.9rem, 3.5vw, 3rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  backdrop-filter: blur(16px);
  background: rgba(249, 251, 255, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
}

.navbar {
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand img {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.brand-text strong,
.brand-text span {
  display: block;
}

.brand-text strong {
  color: var(--primary-dark);
  font-size: 1rem;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.82rem;
}

.nav-links {
  position: fixed;
  inset: var(--nav-height) 1rem auto 1rem;
  display: grid;
  gap: 0.4rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--transition), transform var(--transition);
}

.nav-links a {
  padding: 0.9rem 1rem;
  border-radius: 14px;
  font-weight: 600;
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active {
  background: var(--surface-soft);
  color: var(--primary);
}

.nav-links.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.menu-toggle {
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 14px;
  display: inline-grid;
  place-items: center;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  color: var(--primary-dark);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
  content: "";
}

.menu-toggle span {
  position: relative;
}

.menu-toggle span::before {
  position: absolute;
  transform: translateY(-6px);
}

.menu-toggle span::after {
  position: absolute;
  transform: translateY(6px);
}

.menu-toggle[aria-expanded="true"] span {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] span::before {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span::after {
  transform: rotate(-45deg);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 52px;
  padding: 0.95rem 1.45rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #305fcb 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgba(22, 61, 143, 0.26);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(22, 61, 143, 0.16);
  color: var(--primary);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #10b981 0%, #14cba8 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgba(16, 185, 129, 0.25);
}

.hero {
  position: relative;
  padding: 3rem 0 4.5rem;
}

.hero-grid,
.split-layout,
.about-grid,
.contact-grid,
.intro-grid {
  display: grid;
  gap: 1.5rem;
}

.hero-copy,
.panel,
.card,
.feature-card,
.subject-card,
.testimonial-card,
.pricing-card,
.contact-card,
.profile-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.hero-copy {
  padding: 2rem;
}

.hero-copy p {
  max-width: 54ch;
}

.hero-kicker {
  margin-bottom: 0.9rem;
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 1.02rem;
}

.hero-tags {
  margin: 0 0 1.25rem;
}

.hero-highlights {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.hero-highlight {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 1rem;
  border-radius: 18px;
  background: var(--surface-alt);
}

.hero-highlight strong {
  display: block;
  color: var(--primary-dark);
}

.hero-highlight span {
  color: var(--muted);
}

.hero-visual {
  position: relative;
  padding: 2rem;
  overflow: hidden;
  background:
    linear-gradient(150deg, rgba(22, 61, 143, 0.95), rgba(18, 179, 199, 0.85)),
    #133677;
  color: #fff;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: auto -80px -80px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.hero-card {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.metric {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.12);
}

.metric strong {
  display: block;
  font-size: 1.4rem;
}

.metric span,
.hero-visual p,
.hero-visual li {
  color: rgba(255, 255, 255, 0.86);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.hero-badges span {
  padding: 0.6rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-weight: 600;
}

.hero-eyebrow-light {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

.hero-callout {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.hero-callout .icon-badge {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.hero-callout strong,
.hero-callout span {
  color: rgba(255, 255, 255, 0.9);
}

.hero-callout strong {
  color: #fff;
}

.hero-steps {
  margin: 0.35rem 0 0;
  padding-left: 1rem;
  color: rgba(255, 255, 255, 0.86);
}

.hero-steps li + li {
  margin-top: 0.45rem;
}

.grid {
  display: grid;
  gap: 1.2rem;
}

.grid.cards-2,
.grid.cards-3,
.grid.cards-4 {
  grid-template-columns: 1fr;
}

.card,
.feature-card,
.subject-card,
.testimonial-card,
.pricing-card,
.contact-card,
.profile-card,
.panel {
  padding: 1.5rem;
}

.card:hover,
.feature-card:hover,
.subject-card:hover,
.testimonial-card:hover,
.pricing-card:hover,
.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, rgba(22, 61, 143, 0.14), rgba(18, 179, 199, 0.18));
  color: var(--primary);
  font-size: 1.4rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

.tag-list span {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
}

.list-clean {
  padding-left: 1rem;
  margin: 1rem 0 1.2rem;
}

.list-clean li + li {
  margin-top: 0.45rem;
}

.section-alt {
  background: rgba(255, 255, 255, 0.55);
  border-top: 1px solid rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.72);
}

.cta-banner {
  position: relative;
  overflow: hidden;
  padding: 2rem;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent-dark));
  color: #fff;
}

.cta-banner p,
.cta-banner h2 {
  color: #fff;
}

.cta-banner::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.subhero {
  padding: 2rem 0 1rem;
}

.subhero .panel {
  padding: 2rem;
  background:
    linear-gradient(135deg, rgba(22, 61, 143, 0.95), rgba(18, 179, 199, 0.88)),
    #163d8f;
  color: #fff;
}

.subhero h1,
.subhero p {
  color: #fff;
}

.pricing {
  display: grid;
  gap: 1rem;
}

.price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.placeholder-note {
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  background: rgba(18, 179, 199, 0.09);
  color: var(--primary);
  font-weight: 600;
}

.profile-meta {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
}

.profile-meta li + li {
  margin-top: 0.35rem;
}

.profile-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.9rem;
}

.profile-role {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.form-group {
  display: grid;
  gap: 0.45rem;
}

.contact-form label {
  color: var(--primary-dark);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
  color: var(--text);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(18, 179, 199, 0.28);
  border-color: rgba(18, 179, 199, 0.55);
}

.site-footer {
  padding: 3rem 0 4.5rem;
  background: #0f1f46;
  color: rgba(255, 255, 255, 0.84);
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

.footer-title {
  color: #fff;
  margin-bottom: 0.9rem;
}

.footer-links,
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.footer-links a,
.social-links a {
  color: rgba(255, 255, 255, 0.78);
}

.footer-links a:hover,
.social-links a:hover {
  color: #fff;
}

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.95rem;
}

.whatsapp-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 998;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.95rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #10b981 0%, #14cba8 100%);
  color: #fff;
  box-shadow: 0 20px 35px rgba(16, 185, 129, 0.28);
  font-weight: 700;
}

.whatsapp-float span:first-child {
  font-size: 1.2rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 700px) {
  .hero-grid,
  .split-layout,
  .contact-grid,
  .about-grid,
  .intro-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .grid.cards-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.cards-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
  }
}

@media (min-width: 960px) {
  .section {
    padding: 6rem 0;
  }

  .hero {
    padding: 4rem 0 6rem;
  }

  .nav-links {
    position: static;
    inset: auto;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .menu-toggle {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
    align-items: center;
  }

  .grid.cards-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid.cards-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .subhero {
    padding: 3rem 0 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}