/* NAVUS Könyvelőiroda 2.0 – Futurisztikus AI-esztétikájú, mozgó bináris gyűrűs stíluslap */
:root {
  --bg-deep: #060b19;
  --bg-surface: #0b132b;
  --bg-card: rgba(15, 23, 42, 0.78);
  --bg-card-strong: rgba(15, 23, 42, 0.92);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --cyan-neon: #00f2fe;
  --blue-electric: #38bdf8;
  --emerald-neon: #10b981;
  --violet-glow: #8b5cf6;
  --border-glow: rgba(56, 189, 248, 0.28);
  --border-subtle: rgba(148, 163, 184, 0.18);
  --focus-ring: #00f2fe;
  --cycle-outer: 36s;
  --cycle-mid: 28s;
  --cycle-inner: 22s;
  --cycle-breath: 16s;
}

/* Optional Light / Daylight Mode Support via Theme Switcher */
body.theme-light {
  --bg-deep: #f0f7ff;
  --bg-surface: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-strong: rgba(255, 255, 255, 0.96);
  --text-primary: #0f172a;
  --text-secondary: #1e293b;
  --text-muted: #475569;
  --cyan-neon: #0284c7;
  --blue-electric: #0369a1;
  --emerald-neon: #059669;
  --violet-glow: #4f46e5;
  --border-glow: rgba(2, 132, 199, 0.32);
  --border-subtle: rgba(148, 163, 184, 0.28);
  --focus-ring: #0284c7;
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-deep);
  line-height: 1.65;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(0, 242, 254, 0.14) 0%, transparent 42%),
    radial-gradient(circle at 82% 22%, rgba(139, 92, 246, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(16, 185, 129, 0.10) 0%, transparent 45%),
    var(--bg-deep);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--cyan-neon);
  color: #060b19;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: 800;
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus {
  top: 1rem;
  outline: 3px solid #ffffff;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 0.4rem;
}

/* Futuristic Cyber Grid & Ambient Aura */
.cyber-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.cyber-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(56, 189, 248, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(56, 189, 248, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 35%, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.2) 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 35%, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.2) 80%);
}

.aura-blob {
  position: absolute;
  border-radius: 9999px;
  filter: blur(80px);
  opacity: 0.38;
  will-change: transform, opacity;
}

.aura-blob--cyan {
  width: min(50vw, 520px);
  height: min(50vw, 520px);
  top: 5%;
  left: 6%;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.45) 0%, transparent 70%);
  animation: auraFloatLeft var(--cycle-breath) ease-in-out infinite;
}

.aura-blob--violet {
  width: min(48vw, 500px);
  height: min(48vw, 500px);
  top: 12%;
  right: 6%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.42) 0%, transparent 70%);
  animation: auraFloatRight var(--cycle-breath) ease-in-out infinite;
}

@keyframes auraFloatLeft {
  0%, 100% { transform: translate3d(-3%, -2%, 0) scale(0.95); opacity: 0.30; }
  50% { transform: translate3d(6%, 4%, 0) scale(1.06); opacity: 0.46; }
}

@keyframes auraFloatRight {
  0%, 100% { transform: translate3d(3%, 2%, 0) scale(0.95); opacity: 0.28; }
  50% { transform: translate3d(-6%, -4%, 0) scale(1.06); opacity: 0.44; }
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-card-strong);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-glow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.85rem;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.5rem 0;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-mini-emblem {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1.5px solid var(--cyan-neon);
  background: radial-gradient(circle, rgba(0, 242, 254, 0.18) 0%, rgba(6, 11, 25, 0.95) 80%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan-neon);
  box-shadow: 0 0 18px rgba(0, 242, 254, 0.32);
  flex-shrink: 0;
  position: relative;
}

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

.brand-name {
  font-weight: 900;
  font-size: 1.12rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  line-height: 1.15;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 0.5rem 0.9rem;
  border-radius: 0.6rem;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--cyan-neon);
  background: rgba(56, 189, 248, 0.10);
}

.nav-link[aria-current="page"] {
  color: var(--cyan-neon);
  background: rgba(56, 189, 248, 0.15);
  font-weight: 700;
}

.nav-link--highlight {
  font-weight: 800;
  border: 1px solid var(--border-glow);
  background: rgba(0, 242, 254, 0.08);
  color: var(--text-primary);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.control-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-glow);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.42rem 0.75rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

body.theme-light .control-pill-btn {
  background: #ffffff;
  color: #1e293b;
}

.control-pill-btn:hover {
  border-color: var(--cyan-neon);
  color: var(--cyan-neon);
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background: var(--emerald-neon);
  box-shadow: 0 0 8px var(--emerald-neon);
}

body.motion-paused .status-dot {
  background: #64748b;
  box-shadow: none;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  padding: 0.48rem 0.75rem;
  border-radius: 0.5rem;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding: 3rem 0 3.75rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid var(--border-glow);
  color: var(--cyan-neon);
}

.badge--accent {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.22) 0%, rgba(139, 92, 246, 0.28) 100%);
  color: var(--text-primary);
}

.hero-title {
  font-size: clamp(2rem, 4.1vw, 3.2rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin-bottom: 1.15rem;
  color: var(--text-primary);
}

.text-gradient-ai {
  background: linear-gradient(135deg, #00f2fe 0%, #38bdf8 45%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.theme-light .text-gradient-ai {
  background: linear-gradient(135deg, #0284c7 0%, #1e3a8a 55%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.6rem;
  max-width: 62ch;
}

.key-pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.8rem;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 0.95rem;
  padding: 0.95rem 1.1rem;
  backdrop-filter: blur(12px);
}

.pillar-card--glow {
  border-color: var(--border-glow);
  box-shadow: 0 10px 28px -10px rgba(0, 242, 254, 0.18);
}

.pillar-label {
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 700;
  display: block;
  margin-bottom: 0.2rem;
}

.pillar-value {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--text-primary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 0.96rem;
  padding: 0.85rem 1.4rem;
  border-radius: 0.75rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.22s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #00f2fe 0%, #0284c7 55%, #4f46e5 100%);
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  box-shadow: 0 10px 25px -6px rgba(0, 242, 254, 0.42);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -6px rgba(0, 242, 254, 0.58);
}

.btn-secondary {
  background: var(--bg-card-strong);
  color: var(--text-primary);
  border-color: var(--border-glow);
}

.btn-secondary:hover {
  border-color: var(--cyan-neon);
  color: var(--cyan-neon);
}

/* ANIMATED NAVUS BINARY LOGO STAGE (Recreating the user's exact logo with living 0 & 1 bit rings!) */
.logo-stage-card {
  background: var(--bg-card-strong);
  border: 1px solid var(--border-glow);
  border-radius: 1.6rem;
  padding: 1.5rem;
  box-shadow: 0 25px 55px -15px rgba(0, 242, 254, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.logo-stage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.logo-svg-wrapper {
  position: relative;
  width: 100%;
  max-width: 390px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navus-living-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 22px rgba(0, 242, 254, 0.18));
}

/* Slow, gentle rotation of the binary bit rings */
.bit-ring-outer {
  transform-origin: 220px 220px;
  animation: spinBitClockwise var(--cycle-outer) linear infinite;
}

.bit-ring-middle {
  transform-origin: 220px 220px;
  animation: spinBitCounter var(--cycle-mid) linear infinite;
}

.bit-ring-inner {
  transform-origin: 220px 220px;
  animation: spinBitClockwise var(--cycle-inner) linear infinite;
}

.bit-pulse-glow {
  animation: bitGlowBreath var(--cycle-breath) ease-in-out infinite;
}

@keyframes spinBitClockwise {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spinBitCounter {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes bitGlowBreath {
  0%, 100% { opacity: 0.72; }
  50% { opacity: 1; }
}

/* Floating live bit stream pills under the logo */
.bit-telemetry-bar {
  margin-top: 0.95rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.85rem;
  background: rgba(6, 11, 25, 0.55);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

body.theme-light .bit-telemetry-bar {
  background: #f1f5f9;
}

.bit-code-stream {
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  color: var(--cyan-neon);
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* Pause & Reduced Motion */
body.motion-paused .aura-blob,
body.motion-paused .bit-ring-outer,
body.motion-paused .bit-ring-middle,
body.motion-paused .bit-ring-inner,
body.motion-paused .bit-pulse-glow {
  animation-play-state: paused !important;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .aura-blob,
  .bit-ring-outer,
  .bit-ring-middle,
  .bit-ring-inner,
  .bit-pulse-glow {
    animation: none !important;
  }
}

/* Section Layout */
.section {
  padding: 4rem 0;
}

.section-header {
  max-width: 740px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.section-title {
  font-size: clamp(1.65rem, 3vw, 2.3rem);
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.04rem;
  color: var(--text-secondary);
}

/* 3-State Accounting Focus Selector (Strictly User-Clicked) */
.selector-shell {
  background: var(--bg-card-strong);
  border: 1px solid var(--border-glow);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 22px 50px -15px rgba(0, 0, 0, 0.35);
}

.selector-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  background: rgba(6, 11, 25, 0.65);
  padding: 0.5rem;
  border-radius: 1rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border-subtle);
}

body.theme-light .selector-tabs {
  background: #e2e8f0;
}

.selector-tab {
  appearance: none;
  border: 1.5px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 800;
  font-size: 0.98rem;
  padding: 0.95rem 1rem;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.22rem;
  text-align: center;
}

.selector-tab:hover {
  color: var(--text-primary);
  background: rgba(56, 189, 248, 0.08);
}

.selector-tab[aria-selected="true"] {
  background: linear-gradient(180deg, rgba(0, 242, 254, 0.16) 0%, rgba(15, 23, 42, 0.92) 100%);
  color: var(--cyan-neon);
  border-color: var(--cyan-neon);
  box-shadow: 0 8px 24px -6px rgba(0, 242, 254, 0.28);
}

body.theme-light .selector-tab[aria-selected="true"] {
  background: #ffffff;
  color: #0284c7;
  border-color: #0284c7;
}

.selector-tab-sub {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.selector-tab[aria-selected="true"] .selector-tab-sub {
  color: var(--text-primary);
}

.selector-panel {
  display: none;
  animation: fadeInPanel 0.25s ease-out;
}

.selector-panel.is-active {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-badge {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cyan-neon);
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid var(--border-glow);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
}

.panel-title {
  font-size: 1.55rem;
  font-weight: 900;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.panel-list {
  list-style: none;
  display: grid;
  gap: 0.65rem;
  margin: 1.25rem 0;
}

.panel-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.97rem;
  color: var(--text-secondary);
}

.check-icon {
  color: var(--cyan-neon);
  font-weight: 900;
  flex-shrink: 0;
}

.panel-action-card {
  background: rgba(6, 11, 25, 0.65);
  border: 1px solid var(--border-glow);
  border-radius: 1.15rem;
  padding: 1.5rem;
}

body.theme-light .panel-action-card {
  background: #f8fafc;
}

.price-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-big {
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--cyan-neon);
  margin: 0.35rem 0 0.5rem;
}

.price-note {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 1.25rem;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.info-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.info-card h3 {
  font-size: 1.22rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  color: var(--text-primary);
}

.info-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

/* Form Card */
.form-card {
  background: var(--bg-card-strong);
  border: 1px solid var(--border-glow);
  border-radius: 1.5rem;
  padding: 2.25rem;
  box-shadow: 0 22px 50px -15px rgba(0, 0, 0, 0.35);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.82rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: 0.65rem;
  font-size: 0.98rem;
  font-family: inherit;
  color: var(--text-primary);
  background: rgba(6, 11, 25, 0.72);
  transition: border-color 0.2s ease;
}

body.theme-light .form-input,
body.theme-light .form-select,
body.theme-light .form-textarea {
  background: #f8fafc;
  color: #0f172a;
  border-color: #cbd5e1;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--cyan-neon);
}

.selected-service-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 242, 254, 0.12);
  color: var(--cyan-neon);
  border: 1px solid var(--border-glow);
  padding: 0.55rem 1rem;
  border-radius: 0.65rem;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
}

.form-feedback {
  margin-top: 1.25rem;
  padding: 1.25rem;
  border-radius: 0.9rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  display: none;
}

.form-feedback.is-visible {
  display: block;
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: #030712;
  color: #cbd5e1;
  border-top: 1px solid var(--border-glow);
  padding: 3.5rem 0 5.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.85rem;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
}

.footer-links a:hover {
  color: #00f2fe;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.18);
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Sticky Mobile Bar */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(6, 11, 25, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-glow);
  padding: 0.6rem 0.75rem;
}

.mobile-sticky-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.mobile-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.6rem 0.4rem;
  border-radius: 0.55rem;
  font-weight: 800;
  font-size: 0.8rem;
  text-decoration: none;
  background: rgba(56, 189, 248, 0.12);
  color: #f8fafc;
  border: 1px solid var(--border-subtle);
}

.mobile-bar-btn--primary {
  background: linear-gradient(135deg, #00f2fe 0%, #0284c7 100%);
  color: #060b19;
  border-color: transparent;
}

@media (max-width: 960px) {
  .hero-grid,
  .selector-panel.is-active,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-flex;
  }
  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
  }
  .main-nav.is-open {
    display: flex;
  }
  .key-pillars,
  .selector-tabs,
  .form-grid {
    grid-template-columns: 1fr;
  }
  .mobile-sticky-bar {
    display: block;
  }
}