/* ==========================================================================
   LAYOUT & SECTIONS (Apple Minimalist Standard)
   ========================================================================== */

.container {
  width: min(100% - 3.5rem, var(--max-width));
  margin-inline: auto;
  position: relative;
  z-index: 2;
}

.section {
  position: relative;
  padding: 8rem 0;
  overflow: hidden;
}

/* 1. HERO SECTION */
.section--hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 11rem 0 5rem;
  text-align: center;
  position: relative;
}

.hero-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-ice-blue);
  background: rgba(226, 236, 255, 0.05);
  border: 1px solid var(--border-medium);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 2rem;
  backdrop-filter: blur(16px);
}
.hero-meta-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-blue-electric);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-blue-electric);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9.5vw, 8.8rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
  color: var(--color-paper-white);
  position: relative;
}
.hero-title span {
  color: var(--color-blue-electric);
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 400;
  line-height: 1.55;
  color: var(--color-paper-muted);
  max-width: 680px;
  margin: 0 auto 3rem;
  letter-spacing: -0.01em;
}
.hero-subtitle strong {
  color: var(--color-paper-white);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  z-index: 5;
  position: relative;
}

/* 2. SECTION HEADERS */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
  z-index: 5;
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-blue-electric);
  margin-bottom: 0.8rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-paper-white);
  text-transform: uppercase;
}
.section-title span {
  color: var(--color-blue-electric);
}
.section-desc {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-paper-muted);
  max-width: 580px;
  margin: 1rem auto 0;
}

/* 3. FOOTER */
.site-footer {
  background: var(--color-navy-void);
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 0;
  position: relative;
  z-index: 5;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.footer-copy {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-paper-dim);
}
.footer-back-to-top {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-ice-blue);
  border: 1px solid var(--border-medium);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  transition: all var(--duration-fast);
}
.footer-back-to-top:hover {
  background: var(--color-blue-electric);
  color: #fff;
  border-color: #fff;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .section {
    padding: 5.5rem 0;
  }
  .nav-links, .nav-cta-btn {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }
  .nav-float {
    height: 56px;
    padding: 0 1.25rem;
  }
  .vault-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}