/* ============================================
   SAMURAI Design System — Layout / Sections
   ============================================ */

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(8, 8, 8, 0.85);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(8, 8, 8, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.navbar-logo {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.navbar-brand-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.navbar-brand-text span {
  color: var(--accent-light);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.navbar-link {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.navbar-link:hover {
  color: #fff;
  background: var(--surface);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  font-size: 1.25rem;
}

/* ── Mobile Menu ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  padding: 2rem 1.5rem;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu .navbar-link {
  font-size: 1.125rem;
  padding: 1rem;
  border-radius: var(--radius-md);
}

.mobile-menu .btn {
  width: 100%;
  margin-top: 1rem;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: calc(var(--header-h) + 4rem) 0 6rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(220, 38, 38, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(245, 158, 11, 0.04) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(220, 38, 38, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 38, 38, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: var(--accent-subtle);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.6s ease;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-light);
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(2.75rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.7s ease;
}

.hero-title .gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 520px;
  animation: fadeInUp 0.8s ease;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.9s ease;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  animation: fadeInUp 1s ease;
}

.hero-visual {
  position: relative;
  animation: fadeIn 1s ease 0.3s both;
}

.hero-terminal {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.hero-terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.hero-terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.hero-terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.hero-terminal-line {
  display: flex;
  gap: 0.75rem;
}

.hero-terminal-prompt {
  color: var(--accent-light);
  user-select: none;
}

.hero-terminal-text {
  color: var(--text-muted);
}

.hero-terminal-text .highlight {
  color: var(--amber);
}

.hero-terminal-text .string {
  color: var(--green);
}

.hero-terminal-text .comment {
  color: var(--text-dim);
}

.hero-terminal-response {
  padding-left: 0;
  margin-top: 0.5rem;
}

.hero-terminal-response .success {
  color: var(--green);
}

.hero-terminal-response .json-key {
  color: var(--accent-light);
}

.hero-terminal-response .json-value {
  color: var(--green);
}

.hero-terminal-response .json-number {
  color: var(--amber);
}

/* ── Section ── */
.section {
  padding: 6rem 0;
  position: relative;
}

.section-dark {
  background: var(--bg);
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg) 50%, var(--bg-primary) 100%);
}

/* ── Features Grid ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ── Architecture Section ── */
.arch-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.arch-visual {
  position: relative;
}

.arch-flow {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.arch-flow-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition-slow);
}

.arch-flow-item:hover {
  border-color: var(--border-active);
  background: var(--bg-card-hover);
}

.arch-flow-number {
  width: 32px;
  height: 32px;
  min-width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-subtle);
  color: var(--accent-light);
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.arch-flow-content h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.125rem;
}

.arch-flow-content p {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.arch-flow-arrow {
  display: flex;
  justify-content: center;
  color: var(--text-dim);
  font-size: 1rem;
}

/* ── Security Section ── */
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.security-card {
  display: flex;
  gap: 1.25rem;
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-slow);
}

.security-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow);
}

.security-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.security-icon.red    { background: rgba(220, 38, 38, 0.1); color: var(--accent-light); }
.security-icon.amber  { background: rgba(245, 158, 11, 0.1); color: var(--amber); }
.security-icon.green  { background: rgba(34, 197, 94, 0.1); color: var(--green); }
.security-icon.cyan   { background: rgba(6, 182, 212, 0.1); color: var(--cyan); }
.security-icon.purple { background: rgba(139, 92, 246, 0.1); color: var(--purple); }
.security-icon.blue   { background: rgba(59, 130, 246, 0.1); color: var(--blue); }

.security-content h4 {
  font-size: 1rem;
  margin-bottom: 0.375rem;
}

.security-content p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── API Section ── */
.api-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.api-tab {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.api-tab:hover,
.api-tab.active {
  color: var(--accent-light);
  border-color: var(--border-active);
  background: var(--accent-subtle);
}

.api-endpoint {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.5rem;
  transition: all var(--transition-fast);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.api-endpoint:hover {
  border-color: var(--border-active);
}

.api-method {
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 50px;
  text-align: center;
}

.api-method.post   { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.api-method.get    { background: rgba(59, 130, 246, 0.15); color: var(--blue); }
.api-method.put    { background: rgba(245, 158, 11, 0.15); color: var(--amber); }
.api-method.delete { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

.api-path {
  color: var(--text);
}

.api-desc {
  margin-left: auto;
  color: var(--text-dim);
  font-family: var(--font-primary);
  font-size: 0.8125rem;
}

/* ── Plans / Pricing ── */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-slow);
  position: relative;
}

.plan-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow);
}

.plan-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px rgba(220, 38, 38, 0.1);
}

.plan-card.featured::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1rem;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.25rem;
  line-height: 1;
}

.plan-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-dim);
}

.plan-description {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.plan-feature {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.plan-feature .icon {
  color: var(--accent-light);
  font-size: 0.75rem;
}

/* ── CTA Section ── */
.cta-section {
  position: relative;
  padding: 5rem 0;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 50%, rgba(220, 38, 38, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  margin-bottom: 1rem;
}

.cta-description {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  background: var(--bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-brand-text span {
  color: var(--accent-light);
}

.footer-brand-description {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 300px;
}

.footer-column-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-dim);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.footer-social {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  transition: all var(--transition-fast);
  font-size: 1rem;
}

.footer-social:hover {
  color: var(--accent-light);
  border-color: var(--border-active);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }

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

  .arch-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none;
  }

  .navbar-actions .btn {
    display: none;
  }

  .navbar-mobile-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-h) + 3rem) 0 4rem;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-stats {
    gap: 1.5rem;
    flex-wrap: wrap;
  }

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

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

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

  .api-desc {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .section {
    padding: 4rem 0;
  }
}