:root {
  --alabaster: #fafafa;
  --ink: #0f172a;
  --violet: #7c3aed;
  --violet-soft: #ede9fe;
  --steel: #e2e8f0;
  --radius: 1.5rem;
}

* {
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--alabaster);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

section[id] {
  scroll-margin-top: 88px;
}

a {
  text-decoration: none;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  border-bottom-color: rgba(15, 23, 42, 0.1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--ink);
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.95rem;
}

.brand-text small {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--violet);
  font-weight: 600;
}

.navbar-toggler {
  border: 1px solid rgba(15, 23, 42, 0.15);
  border-radius: 12px;
  padding: 0.55rem 0.7rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.35);
}

.nav-link {
  color: rgba(15, 23, 42, 0.72);
  font-weight: 500;
  font-size: 0.9rem;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--violet);
}

.btn-wa,
.btn-primary-uv {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.6rem;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 0.25s ease, background 0.25s ease;
}

.btn-wa:hover,
.btn-primary-uv:hover {
  background: var(--violet);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost-uv {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.6rem;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.18);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.9rem;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.btn-ghost-uv:hover {
  border-color: var(--violet);
  color: var(--violet);
}

.btn-light-uv {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 1.8rem;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform 0.25s ease, background 0.25s ease;
}

.btn-light-uv:hover {
  background: var(--violet-soft);
  color: var(--ink);
  transform: translateY(-2px);
}

/* Eyebrow + sections */
.eyebrow {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--violet);
}

.eyebrow-light {
  color: #c4b5fd;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: #fff;
}

.section-head {
  max-width: 46rem;
  margin-bottom: 2.5rem;
}

.section-head h2 {
  margin: 1rem 0 1rem;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
}

.section p {
  color: rgba(15, 23, 42, 0.65);
}

.section-head p {
  font-size: 1rem;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 9rem 0 5rem;
  background: radial-gradient(circle at 85% 0%, rgba(124, 58, 237, 0.16), transparent 55%),
    radial-gradient(circle at 0% 90%, rgba(34, 211, 238, 0.12), transparent 45%);
}

.hero h1 {
  margin: 1.2rem 0 1.2rem;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
}

.hero .lead {
  max-width: 32rem;
  font-size: 1.05rem;
  color: rgba(15, 23, 42, 0.7);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-facts {
  display: flex;
  gap: 2.2rem;
  margin-top: 2.8rem;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(15, 23, 42, 0.1);
}

.hero-facts strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.5rem;
}

.hero-facts span {
  font-size: 0.75rem;
  color: rgba(15, 23, 42, 0.55);
}

.hero-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 30px 80px -40px rgba(15, 23, 42, 0.55);
  background: #fff;
}

.hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3.4;
}

/* Cards */
.card-uv {
  height: 100%;
  padding: 1.6rem;
  border-radius: 1.25rem;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: var(--alabaster);
}

.card-uv h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.card-uv p {
  font-size: 0.9rem;
  margin: 0;
}

.prod-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-radius: 1.4rem;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #fff;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.prod-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.35);
  box-shadow: 0 26px 60px -40px rgba(15, 23, 42, 0.55);
}

.prod-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.prod-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1.5rem;
}

.prod-body h3 {
  font-size: 1.1rem;
}

.prod-body p {
  font-size: 0.9rem;
  flex: 1;
}

.prod-body a {
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}

.prod-body a:hover {
  color: var(--violet);
}

.prod-card-cta {
  justify-content: center;
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.prod-card-cta p {
  color: rgba(255, 255, 255, 0.65);
}

.prod-card-cta .prod-body a {
  color: #fff;
}

.prod-card-cta .prod-body a:hover {
  color: #c4b5fd;
}

.tag-light {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #c4b5fd;
}

/* Dark section */
.section-dark {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
}

.section-dark::after {
  content: "";
  position: absolute;
  top: -8rem;
  right: -8rem;
  width: 30rem;
  height: 30rem;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.3);
  filter: blur(120px);
  pointer-events: none;
}

.section-dark .container {
  position: relative;
  z-index: 1;
}

.section-dark h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  margin: 1rem 0 1.2rem;
}

.text-light-muted {
  color: rgba(255, 255, 255, 0.6) !important;
  font-size: 0.98rem;
}

.diff-grid {
  border-radius: 1.25rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.diff-item {
  height: 100%;
  padding: 1.8rem;
  background: var(--ink);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.diff-item span {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--violet);
}

.diff-item h3 {
  font-size: 1rem;
  margin: 0.6rem 0 0.4rem;
}

.diff-item p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55) !important;
  margin: 0;
}

/* Coverage */
.caps-box {
  padding: 2rem;
  border-radius: 1.25rem;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #fff;
}

.caps-title {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(15, 23, 42, 0.45);
}

.caps-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.5rem 1.2rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.caps-list li {
  position: relative;
  padding-left: 0.9rem;
  font-size: 0.85rem;
  color: rgba(15, 23, 42, 0.7);
}

.caps-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--violet);
}

/* CTA */
.section-cta {
  padding-top: 0;
}

.cta-card {
  position: relative;
  overflow: hidden;
  padding: 3rem 2rem;
  border-radius: 2rem;
  background: var(--ink);
  color: #fff;
  text-align: left;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: -6rem;
  right: -4rem;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.45);
  filter: blur(110px);
}

.cta-card > * {
  position: relative;
  z-index: 1;
}

.cta-card h2 {
  margin: 1rem 0 0.9rem;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
}

.cta-card p {
  color: rgba(255, 255, 255, 0.6) !important;
  max-width: 34rem;
}

.cta-card .btn-light-uv {
  margin-top: 1.4rem;
}

.cta-note {
  margin-top: 1.4rem;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.45) !important;
}

/* Footer */
.site-footer {
  padding: 3.5rem 0 2rem;
  background: #fff;
  border-top: 1px solid rgba(15, 23, 42, 0.1);
}

.footer-text {
  margin-top: 1rem;
  max-width: 22rem;
  font-size: 0.88rem;
  color: rgba(15, 23, 42, 0.6);
}

.footer-title {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(15, 23, 42, 0.4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.footer-links li + li {
  margin-top: 0.5rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(15, 23, 42, 0.65);
}

.footer-links a:hover {
  color: var(--violet);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(15, 23, 42, 0.1);
  font-size: 0.75rem;
  color: rgba(15, 23, 42, 0.45);
}

/* WhatsApp float */
.wa-float {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 999;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.4rem;
  border-radius: 999px;
  background: #25d366;
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  box-shadow: 0 18px 40px -14px rgba(37, 211, 102, 0.8);
}

.wa-float:hover {
  color: #fff;
  transform: translateY(-2px);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

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

@media (max-width: 575.98px) {
  .section {
    padding: 3.5rem 0;
  }

  .hero {
    padding: 7rem 0 3.5rem;
  }

  .hero-facts {
    gap: 1.4rem;
  }

  .caps-box {
    padding: 1.4rem;
  }

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

  .cta-card {
    padding: 2rem 1.4rem;
    border-radius: 1.5rem;
  }

  .wa-float {
    right: 1rem;
    bottom: 1rem;
  }
}

:focus-visible {
  outline: 3px solid var(--violet);
  outline-offset: 3px;
}