/* KiloOctet Website Styles */
/* Brand Colors */
:root {
  --brand-primary: #1E3A8A;
  --brand-primary-light: #2563EB;
  --brand-primary-dark: #1E3A5F;
  --wallit-accent: #F59E0B;
  --wallit-accent-light: #FBBF24;
  --doorcode-accent: #10B981;
  --doorcode-accent-light: #34D399;
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --bg-white: #FFFFFF;
  --bg-light: #F9FAFB;
  --bg-gray: #F3F4F6;
  --border-color: #E5E7EB;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 800px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--brand-primary);
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--brand-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1rem;
}

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

.nav a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

/* Hero Section - Homepage */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-logo {
  width: 80px;
  height: 80px;
  background: var(--brand-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 2rem;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-lg);
}

.hero h1 {
  font-size: 3rem;
  color: var(--brand-primary);
  margin-bottom: 16px;
}

.hero .tagline {
  font-size: 1.5rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 24px;
}

.hero .description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* App Grid */
.apps-section {
  padding: 60px 0 80px;
}

.section-title {
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: 48px;
  color: var(--text-primary);
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.app-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 32px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.app-card.wallit:hover {
  border-color: var(--wallit-accent);
}

.app-card.doorcode:hover {
  border-color: var(--doorcode-accent);
}

.app-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  box-shadow: var(--shadow-md);
}

.app-icon.wallit {
  background: linear-gradient(135deg, var(--wallit-accent), #D97706);
}

.app-icon.doorcode {
  background: linear-gradient(135deg, var(--doorcode-accent), #059669);
}

.app-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.app-card .app-tagline {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
}

.app-card .app-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  flex-grow: 1;
}

.app-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: gap 0.2s ease;
}

.app-card.wallit .learn-more {
  color: var(--wallit-accent);
}

.app-card.doorcode .learn-more {
  color: var(--doorcode-accent);
}

.app-card:hover .learn-more {
  gap: 12px;
}

/* App Landing Page Hero */
.app-hero {
  padding: 80px 0;
  text-align: center;
}

.app-hero .app-icon {
  width: 120px;
  height: 120px;
  font-size: 3rem;
  margin: 0 auto 32px;
  box-shadow: var(--shadow-xl);
}

.app-hero h1 {
  font-size: 3.5rem;
  margin-bottom: 16px;
}

.app-hero.wallit h1 {
  color: var(--wallit-accent);
}

.app-hero.doorcode h1 {
  color: var(--doorcode-accent);
}

.app-hero .tagline {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.app-hero .description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* App Store Badge */
.app-store-badge {
  display: inline-block;
  padding: 14px 28px;
  background: #000;
  color: white;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s ease;
}

.app-store-badge:hover {
  background: #333;
  transform: scale(1.02);
}

.badge-placeholder {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: var(--bg-gray);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* Features Section */
.features-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.wallit .feature-icon {
  background: rgba(245, 158, 11, 0.1);
  color: var(--wallit-accent);
}

.doorcode .feature-icon {
  background: rgba(16, 185, 129, 0.1);
  color: var(--doorcode-accent);
}

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

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* Screenshots Section */
.screenshots-section {
  padding: 80px 0;
}

.screenshots-grid {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 20px 0;
  scroll-snap-type: x mandatory;
}

.screenshot-placeholder {
  min-width: 280px;
  height: 560px;
  background: var(--bg-gray);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.875rem;
  border: 2px dashed var(--border-color);
  scroll-snap-align: center;
  flex-shrink: 0;
}

/* Privacy Highlights */
.privacy-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.privacy-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
}

.privacy-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--brand-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.privacy-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.privacy-item p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Pricing Section */
.pricing-section {
  padding: 80px 0;
}

.pricing-card {
  max-width: 400px;
  margin: 0 auto;
  background: var(--bg-white);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
}

.pricing-card.wallit {
  border-color: var(--wallit-accent);
}

.pricing-card.doorcode {
  border-color: var(--doorcode-accent);
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 3rem;
  font-weight: 700;
  margin: 16px 0;
}

.pricing-card.wallit .price {
  color: var(--wallit-accent);
}

.pricing-card.doorcode .price {
  color: var(--doorcode-accent);
}

.pricing-card .price-note {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.pricing-features {
  text-align: left;
  margin: 24px 0;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.pricing-features li::before {
  content: "✓";
  color: var(--doorcode-accent);
  font-weight: 700;
}

/* Footer */
.footer {
  background: var(--brand-primary);
  color: white;
  padding: 60px 0 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  opacity: 0.7;
}

.footer-section a {
  display: block;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9375rem;
  transition: opacity 0.2s ease;
}

.footer-section a:hover {
  opacity: 0.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

.footer-logo {
  font-size: 1.125rem;
  font-weight: 700;
}

/* Contact Page */
.contact-section {
  padding: 80px 0;
  text-align: center;
}

.contact-card {
  max-width: 500px;
  margin: 0 auto;
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: 48px;
}

.contact-card h2 {
  font-size: 1.75rem;
  margin-bottom: 16px;
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  background: var(--brand-primary);
  color: white;
  border-radius: var(--radius-md);
  font-size: 1.125rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.contact-email:hover {
  background: var(--brand-primary-light);
  transform: translateY(-2px);
}

/* Legal Pages */
.legal-content {
  padding: 60px 0 80px;
}

.legal-content h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.legal-content .last-updated {
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 16px;
}

.legal-content p, .legal-content li {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.legal-content ul {
  padding-left: 24px;
}

.placeholder-notice {
  background: var(--bg-gray);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
  text-align: center;
  color: var(--text-secondary);
  margin: 40px 0;
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    height: 56px;
  }

  .nav {
    gap: 20px;
  }

  .nav a {
    font-size: 0.875rem;
  }

  .hero {
    padding: 60px 0 40px;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero .tagline {
    font-size: 1.25rem;
  }

  .app-hero h1 {
    font-size: 2.5rem;
  }

  .app-hero .tagline {
    font-size: 1.25rem;
  }

  .apps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

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

  .section-title {
    font-size: 1.5rem;
  }

  .features-section,
  .screenshots-section,
  .privacy-section,
  .pricing-section {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 1.875rem;
  }

  .app-hero h1 {
    font-size: 2rem;
  }

  .app-hero .app-icon {
    width: 96px;
    height: 96px;
    font-size: 2.5rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

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