/* ── Variables ── */
:root {
  --bg: #0a0a0a;
  --bg-nav: rgba(10, 10, 10, 0.96);
  --bg-card: #111218;
  --bg-section: #0d0d14;
  --accent: #00aaff;
  --accent-dim: rgba(0, 170, 255, 0.12);
  --accent-glow: rgba(0, 170, 255, 0.35);
  --text: #f0f0f0;
  --text-muted: #8888aa;
  --border: rgba(0, 170, 255, 0.18);
  --border-subtle: rgba(255, 255, 255, 0.07);
  --radius: 10px;
  --nav-h: 56px;
  --banner-h: 44px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Promo Banner ── */
.promo-banner {
  background: var(--accent);
  color: #000;
  font-size: 0.875rem;
  font-weight: 500;
  text-align: center;
  padding: 0 48px;
  height: var(--banner-h);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1000;
}
.promo-banner a {
  color: #000;
  text-decoration: underline;
  margin-left: 6px;
  font-weight: 700;
}
.promo-banner .close-btn {
  position: absolute;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: #000;
  line-height: 1;
  padding: 4px 8px;
  opacity: 0.7;
  transition: opacity 0.15s;
}
.promo-banner .close-btn:hover { opacity: 1; }
.promo-banner.hidden { display: none; }

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 32px;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(140deg, #001a2e 0%, #003d66 100%);
  border: 1.5px solid rgba(0, 170, 255, 0.65);
  box-shadow: 0 0 14px rgba(0,170,255,0.28), inset 0 0 8px rgba(0,170,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
.logo-mark::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(135deg, rgba(0,170,255,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 3px;
}
.logo-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 3px;
  background: linear-gradient(90deg, #ffffff 0%, #00aaff 55%, #66d9ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
}
.logo-sub {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 3.5px;
  color: rgba(0, 170, 255, 0.65);
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text); background: var(--accent-dim); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-search {
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s;
}
.nav-search:hover { border-color: var(--accent); color: var(--accent); }
.btn-nav-cta {
  background: var(--accent);
  color: #000;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 6px;
  white-space: nowrap;
  transition: opacity 0.15s, transform 0.1s;
}
.btn-nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.25s;
}

/* ── Hero ── */
.hero {
  min-height: calc(100vh - var(--nav-h) - var(--banner-h));
  display: flex;
  align-items: center;
  padding: 80px 80px 80px 80px;
  gap: 60px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 60% 40%, rgba(0, 170, 255, 0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  flex: 1;
  max-width: 560px;
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  border: 1px solid var(--border);
  padding: 4px 14px;
  border-radius: 20px;
  background: var(--accent-dim);
}
.hero h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: var(--text);
}
.hero h1 .highlight {
  color: var(--accent);
  display: block;
}
.hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 460px;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 8px;
  transition: opacity 0.15s, transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 0 0 rgba(0,170,255,0);
}
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}
.hero-visual {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  min-height: 420px;
}

/* Hero SVG illustration */
.hero-svg { width: 100%; max-width: 500px; filter: drop-shadow(0 0 40px rgba(0,170,255,0.2)); }

/* ── Services Section ── */
.services {
  padding: 96px 80px;
  background: var(--bg-section);
  border-top: 1px solid var(--border-subtle);
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 40px 36px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}
.service-card:hover {
  border-color: var(--border);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5), 0 0 0 1px var(--border);
}
.service-card:hover::before { opacity: 1; }
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.5rem;
}
.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}
.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.15s;
}
.card-link:hover { gap: 10px; }

/* ── Why NIOV ── */
.why-niov {
  padding: 96px 80px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  max-width: 1100px;
  margin: 0 auto;
}
.feature-item {
  text-align: center;
}
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 20px;
}
.feature-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Case Studies ── */
.case-studies {
  padding: 96px 80px;
  background: var(--bg-section);
  border-top: 1px solid var(--border-subtle);
}
.cs-panels {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
}
.cs-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.cs-panel:hover { border-color: var(--border); }
.cs-panel-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 32px;
  background: linear-gradient(135deg, #0d0d18 0%, #001a2e 100%);
  border-bottom: 1px solid var(--border-subtle);
}
.cs-panel-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.cs-panel-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.cs-panel-header span {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.cs-count {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: 20px;
}
.cs-panel-body {
  padding: 28px 32px;
}
.cs-ph-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.cs-ph-card {
  background: var(--bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  opacity: 0.5;
}
.cs-ph-thumb {
  height: 90px;
  background: linear-gradient(135deg, #0d0d18, #111218);
  border-bottom: 1px solid var(--border-subtle);
}
.cs-ph-lines {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cs-ph-line {
  height: 7px;
  border-radius: 4px;
  background: rgba(255,255,255,0.06);
}
.cs-ph-line.w40 { width: 40%; }
.cs-ph-line.w45 { width: 45%; }
.cs-ph-line.w50 { width: 50%; }
.cs-ph-line.w55 { width: 55%; }
.cs-ph-line.w60 { width: 60%; }
.cs-ph-line.w65 { width: 65%; }
.cs-ph-line.w70 { width: 70%; }
.cs-ph-line.w35 { width: 35%; }
.cs-coming-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border-subtle);
  padding: 6px 16px;
  border-radius: 20px;
}
.cs-ph-hide-sm { display: block; }
@media (max-width: 700px) {
  .cs-ph-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-ph-hide-sm { display: none; }
  .cs-panel-header { padding: 20px; }
  .cs-panel-body { padding: 20px; }
}

/* ── CTA Band ── */
.cta-band {
  padding: 80px;
  background: linear-gradient(135deg, var(--bg-section) 0%, rgba(0,170,255,0.06) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  text-align: center;
}
.cta-band h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.cta-band p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 36px;
}
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 80px 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo { margin-bottom: 14px; }
.footer-brand .logo-mark { width: 38px; height: 38px; font-size: 18px; border-radius: 10px; }
.footer-brand .logo-name { font-size: 1.3rem; }
.footer-brand .logo-sub { font-size: 0.54rem; }
.footer-brand p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; max-width: 260px; }
.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.15s;
}
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 0.8rem; color: var(--text-muted); transition: color 0.15s; }
.footer-bottom-links a:hover { color: var(--accent); }

/* ── Search Overlay ── */
.search-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 80px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}
.search-overlay.active { opacity: 1; pointer-events: all; }
.search-modal {
  width: 100%; max-width: 600px;
  background: #111218;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.8);
  transform: translateY(-12px);
  transition: transform 0.2s;
  margin: 0 20px;
}
.search-overlay.active .search-modal { transform: translateY(0); }
.search-input-wrap {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border-subtle);
}
.search-icon-inner { font-size: 1.1rem; opacity: 0.5; flex-shrink: 0; }
.search-input-wrap input {
  flex: 1; background: none; border: none; outline: none;
  font-size: 1rem; color: var(--text);
  font-family: inherit;
}
.search-input-wrap input::placeholder { color: var(--text-muted); }
.search-close {
  background: none; border: none; color: var(--text-muted);
  font-size: 0.85rem; cursor: pointer; padding: 4px 8px;
  border-radius: 5px; transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}
.search-close:hover { background: var(--accent-dim); color: var(--text); }
.search-results { max-height: 420px; overflow-y: auto; padding: 8px; }
.search-hint {
  padding: 20px; text-align: center;
  font-size: 0.875rem; color: var(--text-muted);
}
.search-result {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 12px; border-radius: 8px;
  text-decoration: none; transition: background 0.15s;
  margin-bottom: 2px;
}
.search-result:hover { background: var(--accent-dim); }
.sr-icon { font-size: 1.2rem; flex-shrink: 0; width: 28px; text-align: center; }
.sr-body { flex: 1; min-width: 0; }
.sr-title { display: block; font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 2px; }
.sr-desc { display: block; font-size: 0.78rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sr-tag {
  font-size: 0.65rem; font-weight: 700; color: var(--accent);
  background: var(--accent-dim); border: 1px solid var(--border);
  padding: 2px 8px; border-radius: 10px; flex-shrink: 0;
}

/* ── Chat Widget ── */
.chat-widget {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 800;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
.chat-bubble {
  background: #1a1a2a;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  width: 220px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}
.chat-bubble p {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.chat-bubble span {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 16px;
}
.chat-btn {
  display: block;
  width: 100%;
  padding: 9px 0;
  text-align: center;
  border-radius: 6px;
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  margin-bottom: 8px;
  transition: opacity 0.15s;
}
.chat-btn:hover { opacity: 0.85; }
.chat-btn.primary { background: var(--accent); color: #000; }
.chat-btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.chat-fab {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: transform 0.15s, box-shadow 0.15s;
}
.chat-fab:hover { transform: scale(1.08); box-shadow: 0 6px 24px var(--accent-glow); }
.chat-widget.dismissed .chat-bubble { display: none; }

/* ── PetPalz App Store Card ── */
.pp-store-card {
  display: flex; align-items: flex-start; gap: 16px;
  background: #111218; border: 1px solid var(--border-subtle);
  border-radius: 14px; padding: 20px; margin-bottom: 24px;
}
.pp-store-icon-img {
  width: 100px; height: 100px; border-radius: 20px; flex-shrink: 0;
  object-fit: cover;
  box-shadow: 0 4px 16px rgba(140,111,199,0.45);
  align-self: center;
}
.pp-store-info { flex: 1; min-width: 0; }
.pp-store-name { font-size: 0.95rem; font-weight: 800; color: var(--text); margin-bottom: 3px; }
.pp-store-dev { font-size: 0.72rem; color: var(--accent); margin-bottom: 6px; font-weight: 600; }
.pp-store-cat { font-size: 0.65rem; color: var(--text-muted); }
.pp-store-desc { font-size: 0.72rem; color: var(--text-muted); line-height: 1.6; font-style: italic; }
.pp-store-btn {
  display: flex; align-items: center; gap: 6px; flex-shrink: 0;
  background: #000; color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
  padding: 8px 14px; border-radius: 8px;
  font-size: 0.75rem; font-weight: 700;
  text-decoration: none; white-space: nowrap;
  transition: background 0.15s;
  align-self: center;
}
.pp-store-btn:hover { background: #1a1a1a; }

/* ── Page styles (legal/faq/about pages) ── */
.policy-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 80px 32px 120px;
}
.policy-wrap h1 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -0.5px; margin-bottom: 8px; }
.policy-meta { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 56px; padding-bottom: 24px; border-bottom: 1px solid var(--border-subtle); }
.policy-wrap h2 { font-size: 1.1rem; font-weight: 700; color: var(--accent); margin: 40px 0 12px; }
.policy-wrap p, .policy-wrap li { font-size: 0.975rem; color: var(--text-muted); line-height: 1.8; }
.policy-wrap ul { padding-left: 20px; margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
.policy-wrap a { color: var(--accent); }
.policy-wrap a:hover { text-decoration: underline; }

.faq-wrap { max-width: 760px; margin: 0 auto; padding: 80px 32px 120px; }
.faq-eyebrow { font-size: 0.78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.faq-wrap h1 { font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.5px; margin-bottom: 16px; }
.faq-wrap .lead { font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 56px; padding-bottom: 40px; border-bottom: 1px solid var(--border-subtle); }
.faq-group { margin-bottom: 48px; }
.faq-group-title { font-size: 0.72rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.faq-item { border: 1px solid var(--border-subtle); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; transition: border-color 0.2s; }
.faq-item.open { border-color: var(--border); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; background: var(--bg-card); border: none; cursor: pointer; text-align: left; gap: 16px; transition: background 0.15s; -webkit-tap-highlight-color: transparent; }
.faq-question:hover { background: #16161f; }
.faq-question span { font-size: 0.95rem; font-weight: 600; color: var(--text); line-height: 1.5; }
.faq-chevron { width: 20px; height: 20px; border-radius: 50%; background: var(--accent-dim); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 0.65rem; color: var(--accent); transition: transform 0.25s; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.2s; background: var(--bg-card); border-top: 0px solid var(--border-subtle); }
.faq-item.open .faq-answer { max-height: 400px; border-top: 1px solid var(--border-subtle); }
.faq-answer p { padding: 16px 22px 20px; font-size: 0.9rem; color: var(--text-muted); line-height: 1.8; }
.faq-answer a { color: var(--accent); }
.faq-answer a:hover { text-decoration: underline; }
.faq-cta { background: linear-gradient(135deg, var(--bg-card), rgba(0,170,255,0.06)); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; text-align: center; margin-top: 64px; }
.faq-cta h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 10px; }
.faq-cta p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 24px; }

/* ── Mobile ── */
@media (max-width: 900px) {
  .hero { flex-direction: column; padding: 60px 32px; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero p { max-width: 100%; }
  .hero-buttons { justify-content: center; }
  .hero-visual { min-height: 280px; }
  .hero-svg { max-width: 340px; }
  .services, .why-niov, .cta-band { padding: 64px 32px; }
  footer { padding: 48px 32px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: calc(var(--nav-h) + var(--banner-h, 0px));
    left: 0; right: 0;
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
    backdrop-filter: blur(12px);
  }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}