:root {
  --bg-dark: #49515f;
  --bg-darker: #3f4754;
  --text-dark: #1f2937;
  --text-muted: #5b6472;
  --border-soft: #e5e7eb;
  --section-soft: #f8fafc;
  --success-soft: #e8fff0;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-dark);
  background: #ffffff;
}

.navbar-brand {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-wrap {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
  color: #fff;
}

.hero {
  padding: 5rem 0 4rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
  text-shadow: 0 8px 25px rgba(0, 0, 0, 0.35);
}

.hero .lead {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, .9);
  max-width: 38rem;
  margin-bottom: 1.5rem;
}

.hero-note {
  color: rgba(255, 255, 255, .8);
  font-size: .98rem;
  margin-top: .9rem;
}

.hero-card {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 1.5rem;
  padding: 1rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .18);
}

.badge-soft {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  color: #fff;
  padding: .5rem .8rem;
  border-radius: 999px;
  font-size: .92rem;
  margin-bottom: 1rem;
}

.section {
  padding: 5rem 0;
}

.section-soft {
  background: var(--section-soft);
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-copy,
.feature-copy,
.small-copy {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.eyebrow {
  color: #0d6efd;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .82rem;
  margin-bottom: .9rem;
  display: inline-block;
}

.feature-card,
.use-card,
.compare-card,
.cta-card {
  border: 1px solid var(--border-soft);
  border-radius: 1.5rem;
  background: #fff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .05);
}

.feature-card {
  padding: 1.5rem;
  height: 100%;
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: .75rem;
}

.feature-visual {
  border: 1px solid var(--border-soft);
  border-radius: 1.25rem;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, .05);
}

.feature-visual img,
.hero-card img {
  width: 100%;
  height: auto;
  display: block;
}

.split-copy h2,
.compare-card h2,
.cta-card h2 {
  font-size: clamp(1.8rem, 2.6vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.check-list,
.x-list {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
}

.check-list li,
.x-list li {
  display: flex;
  gap: .75rem;
  align-items: flex-start;
  margin-bottom: .85rem;
  color: var(--text-dark);
}

.check-list li::before,
.x-list li::before {
  flex: 0 0 auto;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
  margin-top: .1rem;
}

.check-list li::before {
  content: "✓";
  background: var(--success-soft);
  color: #15803d;
}

.x-list li::before {
  content: "✕";
  background: #fff1f2;
  color: #be123c;
}

.use-card {
  padding: 1.5rem;
  height: 100%;
}

.use-card .icon {
  width: 3rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: #eef4ff;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.use-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: .65rem;
}

.compare-card,
.cta-card {
  padding: 2rem;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.compare-panel {
  border: 1px solid var(--border-soft);
  border-radius: 1.25rem;
  padding: 1.5rem;
  background: #fff;
}

.compare-panel h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: .9rem;
}

.compare-panel.bad {
  background: #fffafb;
}

.compare-panel.good {
  background: #f7fffa;
}

.btn-cta {
  padding: .9rem 1.2rem;
  border-radius: .9rem;
  font-weight: 700;
}

.muted-link {
  color: rgba(255, 255, 255, .85);
  text-decoration: none;
  font-weight: 600;
}

.muted-link:hover {
  color: #fff;
  text-decoration: underline;
}

.footer {
  padding: 2rem 0 3rem;
  color: var(--text-muted);
  font-size: .95rem;
}

.not-found {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
  color: #fff;
  padding: 4rem 0;
}

.not-found h1 {
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.06em;
  margin-bottom: 1rem;
  text-shadow: 0 8px 25px rgba(0, 0, 0, 0.35);
}

.not-found h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.not-found p {
  color: rgba(255, 255, 255, .86);
  font-size: 1.15rem;
  line-height: 1.7;
  max-width: 38rem;
  margin: 0 auto 1.8rem;
}

@media (max-width: 991.98px) {
  .hero {
    padding: 4rem 0 3rem;
  }

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