:root {
  --bg: #0b1017;
  --bg-raised: #121925;
  --bg-card: #151d2a;
  --ink: #eef2f7;
  --ink-soft: #a8b4c5;
  --muted: #7b8799;
  --line: rgba(255, 255, 255, 0.075);
  --line-strong: rgba(255, 255, 255, 0.13);
  --accent: #7eb8ff;
  --accent-dim: rgba(126, 184, 255, 0.14);
  --nexus: #8aafff;
  --nexus-glow: rgba(122, 162, 255, 0.18);
  --obip: #e8a87c;
  --obip-glow: rgba(232, 168, 124, 0.16);
  --ok: #6bcf8e;
  --danger: #f07178;
  --radius: 14px;
  --radius-lg: 20px;
  --font: "Inter", "Segoe UI", system-ui, sans-serif;
  --max: 1080px;
  --header-h: 76px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* fundo sutil no site inteiro */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(126, 184, 255, 0.09), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 20%, rgba(232, 168, 124, 0.05), transparent 50%),
    radial-gradient(ellipse 50% 30% at 50% 100%, rgba(126, 184, 255, 0.04), transparent 60%);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: min(100% - 2.25rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 16, 23, 0.82);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(11, 16, 23, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.logo img {
  height: 58px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.95;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav a {
  font-size: 0.9rem;
  font-weight: 450;
  color: var(--ink-soft);
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}

.nav a:hover,
.nav a.active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
}

.nav .nav-cta {
  margin-left: 0.45rem;
  color: var(--bg) !important;
  background: var(--ink) !important;
  font-weight: 550;
  padding: 0.5rem 1rem !important;
  border-radius: 999px !important;
}

.nav .nav-cta:hover {
  background: #fff !important;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: inherit;
  font-weight: 550;
  font-size: 0.92rem;
  padding: 0.78rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s, box-shadow 0.15s;
  text-align: center;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--ink);
  color: var(--bg);
  box-shadow: 0 4px 20px rgba(238, 242, 247, 0.12);
}

.btn-primary:hover {
  background: #fff;
  box-shadow: 0 6px 24px rgba(238, 242, 247, 0.18);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
}

.btn-sm {
  padding: 0.48rem 0.95rem;
  font-size: 0.86rem;
}

.btn-lg {
  padding: 0.9rem 1.45rem;
  font-size: 0.95rem;
}

/* Hero */
.hero {
  padding: 5rem 0 4.5rem;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(126, 184, 255, 0.2);
  padding: 0.38rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1.35rem;
  letter-spacing: 0.01em;
}

.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.hero h1 {
  font-size: clamp(2.15rem, 4.4vw, 3.05rem);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.035em;
  margin-bottom: 1.2rem;
}

.hero-lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  line-height: 1.72;
  margin-bottom: 2rem;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hero-pills span {
  font-size: 0.82rem;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-mark {
  width: min(100%, 400px);
  aspect-ratio: 4 / 3;
  border-radius: 22px;
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow), 0 0 80px rgba(126, 184, 255, 0.08);
  display: block;
  position: relative;
  overflow: hidden;
}

.hero-mark::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(11, 16, 23, 0.05), rgba(11, 16, 23, 0.35)),
    radial-gradient(circle at 30% 20%, rgba(126, 184, 255, 0.12), transparent 50%);
}

.hero-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  position: relative;
  z-index: 0;
  display: block;
}

.hero-chip {
  position: absolute;
  z-index: 2;
  font-size: 0.8rem;
  font-weight: 550;
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
  background: rgba(18, 25, 37, 0.92);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  color: var(--ink);
  white-space: nowrap;
}

.hero-chip.n {
  top: 12%;
  left: -4%;
  color: var(--nexus);
}

.hero-chip.o {
  bottom: 14%;
  right: -2%;
  color: var(--obip);
}

/* Sections */
.section {
  padding: 4.75rem 0;
  border-bottom: 1px solid var(--line);
}

.section-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.section-head {
  margin-bottom: 2.4rem;
  max-width: 36rem;
}

.section-head h2 {
  font-size: clamp(1.55rem, 2.6vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 0.7rem;
}

.section-head p {
  color: var(--ink-soft);
  font-size: 1.04rem;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: stretch;
}

.about-body p {
  color: var(--ink-soft);
  margin-bottom: 1.05rem;
  font-size: 1.03rem;
}

.about-body p:last-child { margin-bottom: 0; }

.about-body a {
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}

.about-body a:hover { border-bottom-color: var(--accent); }

.about-aside {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.45rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.about-aside p {
  color: var(--ink-soft);
  font-size: 0.94rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
}

.about-aside p:first-child { padding-top: 0.15rem; }
.about-aside p:last-child {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0.15rem;
}

.about-aside .n {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 650;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.about-aside strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 0.25rem;
  font-size: 0.93rem;
}

/* Products */
.products {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15rem;
}

.product {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%),
    var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.6rem 1.55rem;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.product::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.product.nexus::before {
  background: linear-gradient(90deg, var(--nexus), transparent);
}

.product.obip::before {
  background: linear-gradient(90deg, var(--obip), transparent);
}

.product:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}

.product.nexus:hover { box-shadow: var(--shadow), 0 0 40px var(--nexus-glow); }
.product.obip:hover { box-shadow: var(--shadow), 0 0 40px var(--obip-glow); }

.product-meta {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.8rem;
}

.product.nexus .product-meta { color: var(--nexus); }
.product.obip .product-meta { color: var(--obip); }

.product h3 {
  font-size: 1.5rem;
  font-weight: 650;
  letter-spacing: -0.025em;
  margin-bottom: 0.6rem;
}

.product > p {
  color: var(--ink-soft);
  font-size: 0.98rem;
  margin-bottom: 1.25rem;
  flex: 1;
  line-height: 1.6;
}

.product ul {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
}

.product li {
  font-size: 0.91rem;
  color: var(--ink-soft);
  padding-left: 1.15rem;
  position: relative;
  line-height: 1.45;
}

.product li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
}

.product.nexus li::before { background: var(--nexus); opacity: 0.85; }
.product.obip li::before { background: var(--obip); opacity: 0.85; }

.product .btn { align-self: flex-start; }

/* Values */
.values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.value {
  padding: 1.45rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.015);
  transition: border-color 0.15s, background 0.15s;
}

.value:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
}

.value-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-dim);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 0.95rem;
}

.value-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.value h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.value p {
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* CTA */
.cta {
  padding: 3rem 0 4.5rem;
}

.cta-box {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  background:
    radial-gradient(ellipse 70% 80% at 100% 0%, rgba(126, 184, 255, 0.1), transparent 55%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  box-shadow: var(--shadow);
}

.cta h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 0.6rem;
}

.cta p {
  color: var(--ink-soft);
  max-width: 34rem;
  margin-bottom: 1.45rem;
  font-size: 1.02rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* Page hero */
.page-hero {
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 50% 80% at 90% 30%, rgba(126, 184, 255, 0.08), transparent 55%);
}

.page-hero.nexus::before {
  background: radial-gradient(ellipse 50% 80% at 90% 30%, var(--nexus-glow), transparent 55%);
}

.page-hero.obip::before {
  background: radial-gradient(ellipse 50% 80% at 90% 30%, var(--obip-glow), transparent 55%);
}

.page-hero .container { position: relative; }

.breadcrumb {
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 1.15rem;
}

.breadcrumb a:hover { color: var(--ink-soft); }

.page-hero .kicker {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}

.page-hero.nexus .kicker {
  color: var(--nexus);
  background: var(--nexus-glow);
  border-color: rgba(138, 175, 255, 0.25);
}

.page-hero.obip .kicker {
  color: var(--obip);
  background: var(--obip-glow);
  border-color: rgba(232, 168, 124, 0.25);
}

.page-hero h1 {
  font-size: clamp(1.95rem, 3.9vw, 2.65rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.18;
  max-width: 18ch;
  margin-bottom: 1rem;
}

.page-hero .lead {
  color: var(--ink-soft);
  font-size: 1.08rem;
  max-width: 34rem;
  line-height: 1.7;
  margin-bottom: 1.6rem;
}

/* Content blocks */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.prose h2 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}

.prose p {
  color: var(--ink-soft);
  margin-bottom: 0.95rem;
}

.list-plain {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem;
}

.list-plain li {
  color: var(--ink-soft);
  font-size: 0.95rem;
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.45;
}

.list-plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.8;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.feature-list article {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.35rem;
  transition: border-color 0.15s;
}

.feature-list article:hover {
  border-color: var(--line-strong);
}

.feature-list h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.feature-list p {
  font-size: 0.91rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.note {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem;
  background: var(--bg-raised);
  transition: border-color 0.15s;
}

.note:hover { border-color: var(--line-strong); }

.note strong {
  display: block;
  font-size: 0.93rem;
  margin-bottom: 0.3rem;
}

.note span {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-side h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.contact-side > p {
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.contact-side .meta {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

.contact-side .meta a { color: var(--accent); }
.contact-side .meta a:hover { text-decoration: underline; }

.form {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 30%),
    var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.65rem;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.field { margin-bottom: 0.95rem; }

.field label {
  display: block;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.72rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.field textarea {
  resize: vertical;
  min-height: 110px;
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%7a8799' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2rem;
}

.alert {
  padding: 0.8rem 1rem;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  border: 1px solid;
}

.alert.success {
  background: rgba(107, 207, 142, 0.1);
  border-color: rgba(107, 207, 142, 0.35);
  color: var(--ok);
}

.alert.error {
  background: rgba(240, 113, 120, 0.1);
  border-color: rgba(240, 113, 120, 0.35);
  color: var(--danger);
}

/* Footer */
.site-footer {
  padding: 3rem 0 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.15);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 1.75rem;
  padding-bottom: 2.25rem;
}

.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 0.9rem;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.55;
  max-width: 28ch;
}

.footer-social {
  display: flex;
  gap: 0.65rem;
  margin-top: 1rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.social-link:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--accent-dim);
}

.footer-col h4 {
  color: var(--ink-soft);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-col a { font-size: 0.9rem; }
.footer-col a:hover { color: var(--ink); }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 1.15rem 0;
}

.footer-bottom p { font-size: 0.82rem; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .about,
  .products,
  .two-col,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual { order: -1; }
  .hero-mark { width: min(100%, 360px); margin: 0 auto; }
  .hero-chip.n { left: 4%; }
  .hero-chip.o { right: 4%; }

  .feature-list,
  .notes,
  .values,
  .form-row,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .menu-toggle { display: flex; }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: rgba(18, 25, 37, 0.98);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    gap: 0.15rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s, opacity 0.2s;
  }

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

  .nav a { padding: 0.75rem 0.9rem; }
  .nav .nav-cta {
    margin-left: 0;
    margin-top: 0.35rem;
    text-align: center;
  }

  .hero { padding: 2.75rem 0 3rem; }
  .section { padding: 3.25rem 0; }
  .hero-actions .btn,
  .cta-actions .btn { width: 100%; }
  .cta-box { padding: 1.6rem 1.35rem; }
  .hero-chip { display: none; }
}