/* ============================================================================
 * SECRETSAUCE LANDING PAGE STYLES (UPDATED)
 * ----------------------------------------------------------------------------
 * Built on Design System foundations. Contains custom layout rules, expanded
 * section treatments, and screenshot containers. Dark-mode first only.
 * ==========================================================================*/

/* ---- Core site layout ---------------------------------------------------- */
body {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: hsl(var(--card) / 0.80);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid hsl(var(--border));
  z-index: 100;
  transition: background var(--duration-base), border-color var(--duration-base);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-sans);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
  color: var(--fg-1);
}

.brand img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-links a {
  color: var(--fg-2);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.nav-links a:hover {
  color: var(--fg-1);
  background: hsl(var(--accent) / 0.6);
  text-decoration: none;
}

/* ---- Hero Section -------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: 160px;
  padding-bottom: 100px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  pointer-events: none;
  z-index: -1;
  mask-image: radial-gradient(circle at bottom, black 25%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at bottom, black 25%, transparent 70%);
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: var(--space-2);
  filter: drop-shadow(0 0 24px hsl(var(--primary) / 0.35));
}

.hero-eyebrow {
  margin-bottom: var(--space-4);
}

.hero-title {
  font-size: clamp(var(--text-3xl), 5vw, 3.5rem);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-4);
  color: var(--fg-1);
}

.hero-desc {
  font-size: var(--text-lg);
  color: var(--fg-2);
  max-width: 600px;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Section dividers ---------------------------------------------------- */
.divider-glow {
  height: 1px;
  background: linear-gradient(90deg, transparent, hsl(var(--border)), transparent);
  margin: 60px 0;
}

.section-title-group {
  text-align: center;
  margin-bottom: var(--space-12);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
  color: var(--fg-1);
}

.section-desc {
  font-size: var(--text-base);
  color: var(--fg-2);
  max-width: 550px;
}

/* ---- Features Grid ------------------------------------------------------- */
.features {
  padding: 60px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ---- Network Section ---------------------------------------------------- */
.network {
  padding: 60px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.network-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-12);
  align-items: flex-start;
}

@media (max-width: 960px) {
  .network-split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

.network-info h2 {
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
}

.network-desc {
  color: var(--fg-2);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.network-tech-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.tech-step {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--fg-brand);
  background: hsl(var(--primary) / 0.1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  line-height: 1;
}

.tech-step h4 {
  margin: 0 0 var(--space-1);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--fg-1);
}

.tech-step p {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--fg-2);
  line-height: var(--leading-normal);
}

/* Screenshot Preview container styling */
.network-preview-container {
  width: 100%;
  margin-top: 72px;
}

@media (max-width: 960px) {
  .network-preview-container {
    margin-top: 0;
  }
}

.network-preview-frame {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-xl);
  padding: var(--space-3);
  box-shadow: var(--shadow-xl), 0 0 40px -10px hsl(var(--primary) / 0.15);
  transition: border-color var(--duration-slow) var(--ease-standard);
}

.network-preview-frame:hover {
  border-color: hsl(var(--primary) / 0.3);
}

.network-preview-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid hsl(var(--border));
  display: block;
}

.preview-caption {
  font-size: 11px;
  color: var(--fg-2);
  text-align: center;
  margin-top: var(--space-3);
  font-style: italic;
}

/* ---- Security Section ---------------------------------------------------- */
.security {
  padding: 60px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.security-split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 800px) {
  .security-split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

.security-content h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
  color: var(--fg-1);
}

.security-content p {
  color: var(--fg-2);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

/* Security Cards stacked list */
.security-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.security-item {
  display: flex;
  gap: var(--space-4);
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  align-items: flex-start;
  transition: border-color var(--duration-fast);
}

.security-item:hover {
  border-color: hsl(var(--primary) / 0.2);
}

.security-item-title {
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  margin-bottom: 2px;
  color: var(--fg-1);
}

.security-item-desc {
  font-size: var(--text-xs);
  color: var(--fg-2);
  line-height: var(--leading-normal);
}

/* ---- Footer ------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.3);
  padding: 40px 0;
  font-size: var(--text-xs);
  color: var(--fg-2);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--fg-1);
}

.footer-brand img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.footer-links {
  display: flex;
  gap: var(--space-6);
}

.footer-links a {
  color: var(--fg-2);
}
.footer-links a:hover {
  color: var(--fg-1);
}

/* ---- Responsive Adaptations --------------------------------------------- */
@media (max-width: 768px) {
  .header-container {
    padding: 0 var(--space-4);
  }
  .nav-links {
    display: none; /* simple menu fallback on mobile */
  }
  .hero {
    padding-top: 120px;
    padding-bottom: 60px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-desc {
    font-size: var(--text-sm);
  }
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }
}