/* ===================================
   LinkTrip - Responsive Styles
   Mobile-First Approach
   =================================== */

/* ===================================
   Tablet: 768px and up
   =================================== */

@media (min-width: 768px) {
  /* Typography Scale Up */
  :root {
    --font-size-base: 18px;
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  /* Hero Section */
  .hero-title {
    font-size: var(--font-size-3xl);
  }

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

  /* How It Works - Horizontal Layout with Arrows */
  .steps {
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: center;
  }

  .step-arrow {
    display: block;
  }

  /* Sign In Page - Landscape Layout */
  .signin-container {
    grid-template-columns: 1fr 1fr;
    max-width: 900px;
    margin: 0 var(--spacing-lg);
  }

  .signin-info {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .signin-card {
    padding: var(--spacing-2xl);
  }

  .signin-card > div {
    max-width: 350px;
  }

  /* Footer - 2 columns */
  .footer-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===================================
   Desktop: 1024px and up
   =================================== */

@media (min-width: 1024px) {
  /* Typography Scale Up */
  h1 {
    font-size: var(--font-size-4xl);
  }

  /* Navigation - Hide toggle, show menu */
  .nav-toggle {
    display: none !important;
  }

  .nav-menu {
    display: flex !important;
    position: static;
    flex-direction: row;
    background-color: transparent;
    width: auto;
    box-shadow: none;
    padding: 0;
  }

  /* Hero Section */
  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .hero-content {
    max-width: 900px;
    margin: 0 auto;
  }

  /* Features Grid - 2x2 Grid */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }

  /* CTA Section */
  .cta-title {
    font-size: var(--font-size-4xl);
  }

  /* Footer - 3 columns */
  .footer-container {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Sign In Page - Wide Landscape Layout */
  .signin-container {
    grid-template-columns: 45fr 55fr;
    max-width: 1100px;
  }

  .signin-card {
    padding: var(--spacing-3xl);
  }

  .signin-form {
    max-width: 450px;
  }
}

/* ===================================
   Large Desktop: 1440px and up
   =================================== */

@media (min-width: 1440px) {
  /* Container max width increase */
  :root {
    --container-max-width: 1400px;
  }

  /* Larger spacing */
  .section {
    padding: var(--spacing-3xl) 0;
  }

  /* Sign In Page - Extra Wide Layout */
  .signin-container {
    max-width: 1200px;
  }
}

/* ===================================
   Mobile Only: Up to 767px
   =================================== */

@media (max-width: 767px) {
  /* Typography Scale Down */
  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  /* Navigation - Mobile Menu */
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    right: -100%;
    top: 60px;
    flex-direction: column;
    background-color: var(--primary-brown);
    width: 100%;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-normal);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    padding: var(--spacing-sm);
    width: 100%;
    text-align: center;
  }

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

  .hero-title {
    font-size: var(--font-size-xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-md);
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  /* Features Section */
  .features {
    padding: var(--spacing-xl) 0;
  }

  .feature-card {
    padding: var(--spacing-md);
  }

  /* How It Works */
  .how-it-works {
    padding: var(--spacing-xl) 0;
  }

  /* CTA Section */
  .cta-section {
    padding: var(--spacing-xl) 0;
  }

  .cta-title {
    font-size: var(--font-size-xl);
  }

  .cta-subtitle {
    font-size: var(--font-size-md);
  }

  .cta-buttons {
    flex-direction: column;
  }

  /* Footer */
  .footer {
    padding: var(--spacing-lg) 0 var(--spacing-sm);
  }

  /* Legal Pages */
  .legal-content {
    padding: var(--spacing-sm);
  }

  .legal-content h1 {
    font-size: var(--font-size-xl);
  }

  .legal-content h2 {
    font-size: var(--font-size-lg);
  }

  /* Sign In Page - Mobile */
  .signin-section {
    padding: var(--spacing-md) 0;
  }

  .signin-container {
    border-radius: 0;
    margin: 0 var(--spacing-md);
  }

  .signin-card {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .signin-title {
    font-size: var(--font-size-2xl);
  }

  .signin-form {
    max-width: 100%;
  }
}

/* ===================================
   Print Styles (for Legal Pages)
   =================================== */

@media print {
  .navbar,
  .footer,
  .hero,
  .cta-section {
    display: none;
  }

  .legal-content {
    max-width: 100%;
  }

  body {
    background-color: white;
  }

  a {
    color: black;
    text-decoration: underline;
  }

  .legal-content h2 {
    page-break-after: avoid;
  }
}

/* ===================================
   High DPI / Retina Displays
   =================================== */

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Optimize for retina displays if needed */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* ===================================
   Landscape Orientation (Mobile/Tablet)
   =================================== */

@media (max-width: 1023px) and (orientation: landscape) {
  .hero {
    padding: var(--spacing-lg) 0;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* ===================================
   Reduced Motion (Accessibility)
   =================================== */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===================================
   Dark Mode Support (Optional)
   =================================== */

@media (prefers-color-scheme: dark) {
  /* If dark mode is needed in the future, add styles here */
  /* For now, LinkTrip uses a fixed light theme */
}