:root {
  --bg-void: #05060d;
  --bg-panel: #0b0e1a;
  --bg-panel-2: #10162a;
  --cyan: #2ef2ff;
  --cyan-dim: #1a8fa0;
  --magenta: #ff2ee0;
  --magenta-dim: #9a1c8c;
  --yellow: #f8e34d;
  --text: #d8e6ff;
  --text-dim: #7683a8;
  --border: #22304f;
  --font-display: 'Orbitron', 'Rajdhani', sans-serif;
  --font-body: 'Rajdhani', 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-void);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 50% -10%, #14203a 0%, var(--bg-void) 55%),
    repeating-linear-gradient(0deg, rgba(46, 242, 255, 0.05) 0, rgba(46, 242, 255, 0.05) 1px, transparent 1px, transparent 64px),
    repeating-linear-gradient(90deg, rgba(46, 242, 255, 0.05) 0, rgba(46, 242, 255, 0.05) 1px, transparent 1px, transparent 64px);
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: 0.03em;
  margin: 0;
}

.accent {
  color: var(--magenta);
  text-shadow: 0 0 8px var(--magenta), 0 0 24px rgba(255, 46, 224, 0.5);
}

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(5, 6, 13, 0.7);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan);
  letter-spacing: 0.08em;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: 8px;
  padding: 12px 24px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: filter 0.15s, transform 0.15s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--magenta) 100%);
  color: #05060d;
  box-shadow: 0 0 24px rgba(46, 242, 255, 0.4);
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--cyan-dim);
}

.btn-small {
  padding: 8px 16px;
  font-size: 12px;
}

.btn-large {
  padding: 16px 40px;
  font-size: 16px;
}

/* ---------- Hero ---------- */

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 72px 24px 40px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.35;
  color: var(--text);
  text-shadow: 0 0 20px rgba(46, 242, 255, 0.15);
}

.hero-lead {
  color: var(--text-dim);
  margin: 20px 0 28px;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-note {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 16px;
}

.hero-visual {
  position: relative;
}

.device-frame {
  position: relative;
  z-index: 1;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-panel);
  box-shadow: 0 0 50px rgba(46, 242, 255, 0.15), 0 20px 60px rgba(0, 0, 0, 0.6);
}

.device-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  z-index: 0;
  opacity: 0.5;
}

.glow-orb-cyan {
  width: 180px;
  height: 180px;
  background: var(--cyan);
  top: -40px;
  right: -40px;
}

.glow-orb-magenta {
  width: 180px;
  height: 180px;
  background: var(--magenta);
  bottom: -40px;
  left: -40px;
}

/* ---------- Sections ---------- */

.section-title {
  text-align: center;
  font-size: clamp(22px, 3vw, 30px);
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(46, 242, 255, 0.35);
  margin-bottom: 40px;
}

.section-title-left {
  text-align: left;
}

.modes,
.showcase,
.pricing,
.cta {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px;
}

/* ---------- Mode cards ---------- */

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.mode-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.mode-card:hover {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 24px rgba(46, 242, 255, 0.15);
  transform: translateY(-2px);
}

.mode-icon {
  font-size: 22px;
  display: inline-block;
  margin-bottom: 12px;
  filter: grayscale(1) brightness(2);
}

.mode-card h3 {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 10px;
}

.mode-card p {
  color: var(--text-dim);
  font-size: 15px;
  margin: 0;
}

/* ---------- Showcase ---------- */

.showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.device-frame-small {
  max-width: 480px;
}

.checklist {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.checklist li {
  position: relative;
  padding-left: 28px;
  color: var(--text-dim);
}

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan);
  font-weight: 700;
}

/* ---------- Pricing ---------- */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.pricing-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: center;
}

.pricing-card h3 {
  font-size: 15px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.pricing-card .price {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--text);
  margin: 0 0 12px;
}

.pricing-card p:last-child {
  color: var(--text-dim);
  font-size: 14px;
  margin: 0;
}

.pricing-card-highlight {
  border-color: var(--magenta-dim);
  box-shadow: 0 0 24px rgba(255, 46, 224, 0.15);
}

/* ---------- CTA ---------- */

.cta {
  text-align: center;
}

.cta-lead {
  color: var(--text-dim);
  margin: 16px 0 32px;
}

/* ---------- Footer ---------- */

.footer {
  text-align: center;
  padding: 32px 24px 48px;
  color: var(--text-dim);
  font-size: 13px;
  border-top: 1px solid var(--border);
}

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 48px;
  }

  .showcase {
    grid-template-columns: 1fr;
  }

  .showcase-visual {
    order: 2;
  }
}