/* SidePiece - App Size Sensitivity as a Service (ASSaaS) */

:root {
  --primary: #e94560;
  --primary-dark: #c13a52;
  --secondary: #1a1a2e;
  --accent: #ff6b6b;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.7);
  --bg-dark: #0f0f23;
  --bg-card: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation */
.nav {
  position: fixed;
  top: 36px;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  height: 36px;
}

.nav-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--primary);
  color: var(--text) !important;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.2s;
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* Hamburger Button */
.hamburger-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all 0.3s ease;
}

.hamburger-btn.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Nav Drawer */
.nav-drawer-overlay {
  position: fixed;
  top: 30px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 998;
}

.nav-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.nav-drawer {
  position: fixed;
  top: 30px;
  right: -280px;
  width: 280px;
  height: calc(100vh - 30px);
  background: var(--secondary);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
  transition: right 0.3s ease;
  z-index: 999;
  padding: 80px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-drawer.open {
  right: 0;
}

.nav-drawer a {
  display: block;
  padding: 12px 16px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-drawer a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.nav-drawer a.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--primary);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 40px 80px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(255, 107, 107, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--text);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Sections */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Problem Section */
.problem-section {
  padding: 100px 40px;
  background: var(--secondary);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
}

.problem-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 12px 40px rgba(233, 69, 96, 0.1);
}

.problem-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.problem-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.problem-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Features Section */
.features-section {
  padding: 100px 40px;
  background: var(--bg-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: 0 12px 40px rgba(233, 69, 96, 0.1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Integration Section */
.integration-section {
  padding: 100px 40px;
  background: var(--secondary);
}

.code-block {
  max-width: 800px;
  margin: 0 auto;
  background: #0d0d1a;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.code-header {
  background: rgba(255, 255, 255, 0.05);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27ca40; }

.code-content {
  padding: 24px;
  font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
  overflow-x: auto;
}

.code-content .tag { color: #ff79c6; }
.code-content .attr { color: #50fa7b; }
.code-content .string { color: #f1fa8c; }
.code-content .comment { color: #6272a4; }

/* Pricing Section */
.pricing-section {
  padding: 100px 40px;
  background: var(--bg-dark);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  transition: all 0.3s ease;
}

.pricing-card.featured {
  border-color: var(--primary);
  transform: scale(1.05);
  box-shadow: 0 20px 60px rgba(233, 69, 96, 0.2);
}

.pricing-tier {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 32px;
}

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

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.pricing-features li::before {
  content: '';
  margin-right: 12px;
}

.pricing-btn {
  width: 100%;
  padding: 16px;
  background: var(--primary);
  color: var(--text);
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.pricing-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* CTA Section */
.cta-section {
  padding: 100px 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 500px;
  margin: 0 auto 32px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  background: var(--text);
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
  padding: 60px 40px 40px;
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer-links h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* Responsive */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav {
    padding: 12px 20px;
  }

  .hero {
    padding: 100px 20px 60px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .problem-section,
  .features-section,
  .integration-section,
  .pricing-section,
  .cta-section {
    padding: 60px 20px;
  }

  .pricing-card.featured {
    transform: none;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}