* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  color: #0f172a;
  background: #0b0f1a;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  background: linear-gradient(180deg, #0b0f1a, #0f172a 40%, #0b0f1a);
  color: #fff;
  padding: 56px 0 64px;
  border-bottom: 1px solid #1e293b;
}

.brand {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.logo {
  font-weight: 800;
  font-size: 28px;
  letter-spacing: 0.5px;
}

.logo .reg {
  font-size: 14px;
  vertical-align: super;
}

.nav a {
  color: #cbd5e1;
  margin-left: 16px;
  text-decoration: none;
}

.nav a:hover {
  color: #fff;
}

.hero-title {
  font-size: 44px;
  line-height: 1.1;
  margin: 0 0 8px;
}

.hero-sub {
  color: #94a3b8;
  margin: 0 0 24px;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid #334155;
  text-decoration: none;
  cursor: pointer;
}

.btn.primary {
  background: #06b6d4;
  border-color: #089fb1;
  color: #ffffff;
  font-weight: 700;
}

.btn.ghost {
  background: transparent;
  color: #e2e8f0;
  border-color: #334155;
}

.btn.xl {
  padding: 16px 22px;
  font-size: 18px;
}

.section {
  padding: 56px 0;
  color: #e2e8f0;
}

.section.alt {
  background: #0f172a;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: #0b1220;
  border: 1px solid #1e293b;
  border-radius: 16px;
  padding: 18px;
}

.specs {
  list-style: none;
  padding: 0;
  margin: 0;
}

.specs li {
  padding: 8px 0;
  border-bottom: 1px dashed #1e293b;
}

.site-footer {
  border-top: 1px solid #1e293b;
  padding: 32px 0;
  color: #94a3b8;
}

.site-footer .foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.fine {
  color: #94a3b8;
}

.lead {
  font-size: 18px;
  color: #cbd5e1;
}

.hero-figure {
  margin: 20px 0 8px;
  border: 1px solid #1e293b;
  border-radius: 16px;
  overflow: hidden;
  background: #0b1220;
}

.hero-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.btn.whatsapp {
  background: #25d366;
  border-color: #1fae4f;
  color: #ffffff;
  font-weight: 700;
}

.btn.whatsapp:hover {
  filter: brightness(0.95);
}

.muted {
  color: #94a3b8;
  font-size: 14px;
  margin: 0 0 12px;
}

.paypal-buttons {
  margin: 12px 0;
}

.paypal-status {
  margin: 12px 0 0;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 12px;
}

.paypal-status.success {
  background: #dcfce7;
  color: #14532d;
}

.paypal-status.error {
  background: #fee2e2;
  color: #7f1d1d;
}

/* Primary button — darker face for AA contrast, no text-color changes */
.btn.primary {
  background: #0369a1; /* slate-blue (passes AA with white text) */
  border-color: #075985; /* a shade deeper for edge definition */
}

.btn.primary:hover,
.btn.primary:focus {
  background: #0c4a6e; /* darker on hover/focus */
  border-color: #0a3e5d;
  outline: none;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.35); /* visible focus ring */
}

/* WhatsApp-style button — accessible green face, no text-color changes */
.btn.whatsapp {
  background: #166534; /* deep green (AA with white text) */
  border-color: #14532d;
}

.btn.whatsapp:hover,
.btn.whatsapp:focus {
  background: #14532d; /* darker on hover/focus */
  border-color: #0f3f22;
  outline: none;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.3);
}

/* Keep strong keyboard focus without altering text colors */
.btn:focus-visible {
  outline: 3px solid rgba(14, 165, 233, 0.55);
  outline-offset: 3px;
}

/* Make links slightly gray whether visited or not and keep that color on hover/focus.
   This also overrides .nav a:hover so links remain the same gray in the header. */
a,
a:link,
a:visited,
a:hover,
a:active,
a:focus,
.nav a,
.nav a:link,
.nav a:visited,
.nav a:hover,
.nav a:active,
.nav a:focus {
  color: #94a3b8; /* slightly gray */
  text-decoration: none;
}

/* Keep visible keyboard focus for links without changing color */
a:focus-visible {
  outline: 3px solid rgba(14, 165, 233, 0.55);
  outline-offset: 3px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.img-fluid {
  max-width: 100%;
  height: auto;
  display: block;
}