/* ============================================
   LAYOUT — Page structure & grids
   ============================================ */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(9, 9, 11, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.nav.scrolled {
  background: rgba(9, 9, 11, 0.9);
  border-bottom-color: var(--border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Mobile overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg-primary);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.mobile-menu a:hover {
  color: var(--accent);
}

/* ---- Hero ---- */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-5xl));
  padding-bottom: var(--space-5xl);
  position: relative;
  overflow: hidden;
}

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

.hero-text {
  max-width: 680px;
}

.hero-text .badge {
  margin-bottom: var(--space-xl);
}

.hero-text h1 {
  margin-bottom: var(--space-lg);
}

.hero-text .lead {
  margin-bottom: var(--space-2xl);
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-code {
  max-width: 520px;
  justify-self: end;
}

/* ---- Stats bar ---- */
.stats {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--space-2xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

/* ---- Section (generic) ---- */
.section {
  padding: var(--space-5xl) 0;
}

/* ---- Features grid (2x2 with gap border effect) ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

/* ---- Flow section (how it works) ---- */
.flow-section {
  padding: var(--space-5xl) 0;
  background: var(--bg-secondary);
}

.steps-row {
  display: flex;
  gap: var(--space-xl);
  position: relative;
}

.steps-row .step {
  position: relative;
}

/* ---- Use cases grid ---- */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ---- Testimonials grid ---- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ---- CTA section ---- */
.cta-section {
  padding: var(--space-5xl) 0;
  text-align: center;
}

.cta-section .section-header {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.cta-section .lead {
  max-width: 540px;
  margin: var(--space-md) auto var(--space-2xl);
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: var(--text-sm);
  max-width: 260px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  font-size: var(--text-xs);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--text-primary);
}