/* ── Hero ── */
.hero {
  padding: calc(var(--nav-top-offset) + var(--nav-height) + 64px) 0 80px;
  position: relative;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__title {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__title span {
  color: var(--color-green);
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero__content {
  scroll-margin-top: calc(var(--nav-top-offset) + var(--nav-height) + 16px);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

.hero__tracker {
  width: 100%;
  max-width: 440px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 44px;
  box-shadow: var(--shadow-md);
}

.hero__tracker-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.hero__tracker-icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  flex-shrink: 0;
}

.hero__tracker-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.hero__tracker-tagline {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.hero__tracker-stats {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0;
  padding-top: 32px;
}

.hero__tracker-stat {
  text-align: center;
}

.hero__tracker-count {
  font-size: 3.75rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.hero__tracker-label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-top: 10px;
}

.hero__tracker-divider {
  width: 1px;
  height: 64px;
  background: var(--color-border);
  margin: 0 16px;
}

/* ── How it works ── */
.how-it-works {
  padding: 100px 0;
  background: var(--color-white);
}

.how-it-works__header {
  text-align: center;
  margin-bottom: 64px;
}

.how-it-works__header .section-subtitle {
  margin: 0 auto;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.steps::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green-light), var(--color-green), var(--color-green-light));
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step__number {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 2px solid var(--color-green);
  border-radius: var(--radius-full);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-green-dark);
}

.step__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 280px;
  margin: 0 auto;
}

/* ── Features ── */
.features {
  padding: 100px 0;
}

.features__header {
  text-align: center;
  margin-bottom: 56px;
}

.features__header .section-subtitle {
  margin: 0 auto;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ── Game modes ── */
.modes {
  padding: 100px 0;
  background: var(--color-white);
}

.modes__header {
  text-align: center;
  margin-bottom: 56px;
}

.modes__header .section-subtitle {
  margin: 0 auto;
}

.modes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── Stats showcase ── */
.stats-showcase {
  padding: 100px 0;
  background: var(--color-white);
}

.stats-showcase__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-block {
  text-align: center;
  padding: 32px 20px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.stat-block__value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-green);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-block__label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ── CTA ── */
.cta {
  padding: 40px 0 100px;
}

.cta__card {
  max-width: 680px;
  margin: 0 auto;
  background: linear-gradient(160deg, var(--color-green) 0%, var(--color-green-dark) 100%);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-lg), 0 16px 48px var(--color-green-glow);
}

.cta__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.cta__subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}

.cta .btn--primary {
  background: var(--color-white);
  color: var(--color-green-dark);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.cta .btn--primary:hover {
  background: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__tracker {
    margin: 0 auto;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modes__grid {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: calc(var(--nav-top-offset) + var(--nav-height) + 40px);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps::before {
    display: none;
  }

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

  .cta__card {
    padding: 44px 28px;
  }
}