/* ==========================================
   ChaseMuse Brand Website Styles
   Modern, Minimal, Apple-inspired Design
   ========================================== */

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

:root {
  /* Colors */
  --color-primary: #007aff;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-background: #ffffff;
  --color-background-gray: #f5f5f7;
  --color-border: #d2d2d7;
  --color-hover: #0071e3;

  /* Typography */
  --font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --font-size-hero: 3.5rem;
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.5rem;
  --font-size-body: 1.125rem;
  --font-size-small: 0.875rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Layout */
  --container-width: 1200px;
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  font-size: var(--font-size-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ==========================================
   Navigation
   ========================================== */
.nav {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 1rem;
  transition: var(--transition);
}

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

/* ==========================================
   Hero Section
   ========================================== */
.hero {
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-hero);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--font-size-h3);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  font-weight: 500;
}

.hero-description {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

/* Product Hero */
.product-hero {
  padding: var(--spacing-lg) 0;
}

.product-hero-content {
  max-width: 700px;
  margin: 0 auto;
}

.product-icon {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.product-icon-large {
  width: 100px;
  height: 100px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--color-primary), #0051d5);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 600;
  box-shadow: 0 10px 40px rgba(0, 122, 255, 0.3);
}

.product-title {
  font-size: var(--font-size-h1);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.product-subtitle {
  font-size: var(--font-size-h3);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.product-tagline {
  font-size: 1.375rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.product-description {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.platform-note {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-md);
}

/* ==========================================
   Buttons
   ========================================== */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 980px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-size: 1rem;
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

.btn-large {
  padding: 16px 48px;
  font-size: 1.125rem;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================
   Sections
   ========================================== */
.section {
  padding: var(--spacing-xl) 0;
}

.section-gray {
  background-color: var(--color-background-gray);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: var(--font-size-h1);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
}

.lead-text {
  font-size: 1.375rem;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  font-weight: 500;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================
   Content Grids
   ========================================== */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  padding: var(--spacing-md);
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.section-gray .feature-card {
  background-color: var(--color-background);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

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

/* ==========================================
   Apps Grid
   ========================================== */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.app-card {
  padding: var(--spacing-lg);
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.app-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.app-icon {
  margin-bottom: var(--spacing-sm);
}

.app-icon-placeholder {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--color-primary), #0051d5);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 600;
}

.app-name {
  font-size: var(--font-size-h2);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.app-tagline {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.app-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.app-meta {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-sm);
}

.badge {
  padding: 4px 12px;
  background-color: var(--color-background-gray);
  border-radius: 16px;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}

/* ==========================================
   Features List
   ========================================== */
.features-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.feature-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.3;
  min-width: 80px;
}

.feature-content h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.feature-content p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ==========================================
   Steps Grid
   ========================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.step-card {
  padding: var(--spacing-md);
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  text-align: center;
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-md);
}

.step-card h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.step-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ==========================================
   Use Cases
   ========================================== */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.use-case-card {
  padding: var(--spacing-md);
  background-color: var(--color-background-gray);
  border-radius: var(--border-radius);
}

.use-case-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.use-case-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ==========================================
   Screenshots
   ========================================== */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.screenshot-card {
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
  text-align: center;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.screenshot-card img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.screenshot-card figcaption {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

/* ==========================================
   Privacy
   ========================================== */
.privacy-content {
  max-width: 900px;
  margin: 0 auto;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.privacy-item {
  padding: var(--spacing-md);
}

.privacy-item h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.privacy-item p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ==========================================
   Disclaimer
   ========================================== */
.disclaimer-section {
  background-color: var(--color-background-gray);
}

.disclaimer-box {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--spacing-md);
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
}

.disclaimer-box h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.disclaimer-list {
  list-style: none;
  padding: 0;
}

.disclaimer-list li {
  padding: var(--spacing-xs) 0;
  color: var(--color-text-secondary);
  position: relative;
  padding-left: 24px;
}

.disclaimer-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

/* ==========================================
   CTA Section
   ========================================== */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, #f5f5f7, #e8e8ed);
}

.cta-content h2 {
  font-size: var(--font-size-h1);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.cta-content p {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
  background-color: var(--color-background-gray);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  gap: var(--spacing-lg);
}

.footer-brand .brand {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  display: block;
}

.footer-tagline {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-column h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

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

.footer-column ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-column a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-small);
  transition: var(--transition);
}

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

.footer-bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.disclaimer {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.copyright {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
  :root {
    --font-size-hero: 2.5rem;
    --font-size-h1: 2rem;
    --font-size-h2: 1.5rem;
    --font-size-h3: 1.25rem;
    --font-size-body: 1rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  .nav-links {
    gap: var(--spacing-sm);
  }

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

  .apps-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }

  .feature-item {
    flex-direction: column;
  }

  .feature-number {
    min-width: auto;
  }

  .product-icon-large {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
  }
}

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

  .hero,
  .section {
    padding: var(--spacing-md) 0;
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
  }
}

/* ==========================================
   Smooth Scroll
   ========================================== */
html {
  scroll-behavior: smooth;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.product-hero-content {
  animation: fadeIn 0.8s ease-out;
}