/* Navigation - minimal, sharp */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.125rem;
  font-weight: 800;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
}

.nav-logo svg {
  width: 28px;
  height: 28px;
  color: var(--color-fire);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-fire);
}

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

/* Page shell */
.page-shell {
  min-height: 100vh;
}

/* Hero - dramatic */
.hero {
  position: relative;
  padding: calc(var(--space-24) + 80px) 0 var(--space-24);
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-glow {
  position: absolute;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 800px;
  background: radial-gradient(ellipse, rgba(255, 77, 0, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

/* Scan line effect */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (max-width: 968px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

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

.hero-title {
  margin: var(--space-4) 0 var(--space-6);
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin-bottom: var(--space-8);
}

@media (max-width: 968px) {
  .hero-subtitle {
    margin: 0 auto var(--space-8);
  }
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 968px) {
  .hero-cta {
    justify-content: center;
  }
}

.hero-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

@media (max-width: 968px) {
  .hero-stats {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    flex-direction: column;
    align-items: center;
  }
}

.stat-item {
  text-align: left;
}

@media (max-width: 968px) {
  .stat-item {
    text-align: center;
  }
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--color-fire);
  line-height: 1;
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.terminal-window {
  background: #000;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 100px rgba(255, 77, 0, 0.1);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}

.terminal-dot.red { background: var(--color-fire); }
.terminal-dot.yellow { background: var(--color-accent); }
.terminal-dot.green { background: var(--color-success); }

.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.terminal-body {
  padding: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 2;
}

.terminal-line {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
}

.terminal-prompt {
  color: var(--color-accent);
  font-weight: 700;
}

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

.terminal-output {
  color: var(--color-text-muted);
  padding-left: var(--space-4);
}

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

/* Sections */
.section {
  padding: var(--space-24) 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-16);
}

.section-title {
  margin: var(--space-4) 0 var(--space-6);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-8);
}

.feature-title {
  margin-bottom: var(--space-3);
}

.feature-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-fire);
  border-radius: 50%;
}

/* How It Works / Steps */
.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  max-width: 720px;
  margin: 0 auto;
}

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

@media (max-width: 640px) {
  .step {
    flex-direction: column;
  }
}

.step-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-fire);
  color: var(--color-bg);
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.step-content {
  flex: 1;
}

.step-title {
  margin-bottom: var(--space-2);
}

.step-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

/* Code Comparison */
.code-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.code-example-title {
  font-size: 1rem;
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.code-callout {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-fire-soft);
  border: 1px solid var(--color-fire);
  border-radius: var(--radius-md);
  color: var(--color-fire-light);
  font-weight: 500;
}

/* Tech Stack Section */
.stack-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Pricing - bold */
.pricing-section {
  text-align: center;
}

.pricing-card {
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-12);
  background: #000;
  border: 2px solid var(--color-fire);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-glow);
  position: relative;
}

.pricing-card::before {
  content: 'MIT';
  position: absolute;
  top: -1px;
  right: var(--space-6);
  padding: var(--space-1) var(--space-4);
  background: var(--color-fire);
  color: #000;
  font-size: 0.65rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
}

.pricing-header {
  margin-bottom: var(--space-8);
}

.pricing-title {
  margin: var(--space-4) 0;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-1);
}

.pricing-currency {
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.pricing-value {
  font-size: 4rem;
  font-weight: 700;
}

.pricing-period {
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.pricing-features {
  text-align: left;
  margin-bottom: var(--space-8);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.pricing-features li::before {
  content: '✓';
  color: var(--color-fire);
  font-weight: 600;
}

.pricing-note {
  margin-top: var(--space-4);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* FAQ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-6) 0;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-fire);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding-bottom: var(--space-6);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-content {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.footer-title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer-links a {
  display: block;
  padding: var(--space-2) 0;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-fire);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}