/**
 * Responsive Design
 * Mobile-first breakpoints and adjustments
 */

/* ============================
   BASE / MOBILE (< 640px)
   Default styles are mobile-first
   ============================ */

/* Mobile Navigation */
.main-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg-primary);
  padding: var(--spacing-xl);
  overflow-y: auto;
  z-index: 1000;
}

.main-nav.active {
  display: block;
}

.nav-menu {
  flex-direction: column;
  gap: var(--spacing-md);
}

.nav-item {
  width: 100%;
}

.nav-link {
  display: block;
  padding: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.dropdown-menu {
  position: static;
  display: none;
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-sm) 0;
  margin-top: var(--spacing-sm);
  border-radius: var(--border-radius-md);
}

.dropdown.active .dropdown-menu {
  display: block;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-btn span {
  width: 100%;
  height: 3px;
  background-color: var(--color-primary-500);
  transition: all 0.3s ease;
  transform-origin: center;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* Ensure mobile content stacks properly */
.hero-cta {
  flex-direction: column;
  align-items: stretch;
}

.hero-cta .btn {
  width: 100%;
}

/* ============================
   SMALL (640px+)
   ============================ */

@media (min-width: 640px) {
  /* Typography adjustments */
  :root {
    --font-size-base: 1rem;
  }

  /* Hero adjustments */
  .hero-cta {
    flex-direction: row;
    align-items: center;
  }

  .hero-cta .btn {
    width: auto;
  }

  /* Footer adjustments */
  .newsletter-form {
    flex-direction: row;
  }
}

/* ============================
   MEDIUM (768px+)
   Tablet portrait
   ============================ */

@media (min-width: 768px) {
  /* Container padding */
  :root {
    --section-padding-x: 2rem;
    --section-padding-y: 6rem;
  }

  /* Typography scale up */
  .hero-title {
    font-size: var(--font-size-5xl);
  }

  .section-title {
    font-size: var(--font-size-4xl);
  }

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

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

  /* Transaction logos side by side */
  .transaction-logos {
    flex-direction: row;
  }
}

/* ============================
   LARGE (1024px+)
   Tablet landscape / Desktop
   ============================ */

@media (min-width: 1024px) {
  /* Container padding */
  :root {
    --section-padding-x: 3rem;
  }

  /* Typography */
  .hero-title {
    font-size: var(--font-size-6xl);
  }

  /* Desktop Navigation */
  .main-nav {
    display: flex !important;
    position: static;
    padding: 0;
    overflow-y: visible;
    background-color: transparent;
  }

  .mobile-menu-btn {
    display: none !important;
  }

  .nav-menu {
    flex-direction: row;
    gap: var(--spacing-lg);
  }

  .nav-item {
    width: auto;
  }

  .nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
  }

  .dropdown-menu {
    position: absolute;
    display: none;
    background-color: var(--color-bg-primary);
    padding: var(--spacing-md);
    margin-top: 0;
    top: 100%;
    left: 0;
    min-width: 220px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  .dropdown:hover .dropdown-menu {
    display: block;
  }

  /* Stats grid full */
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Services grid */
  .services-section .grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Footer full grid */
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  }

  /* Carousel improvements */
  .carousel-slide {
    padding: var(--spacing-2xl);
  }
}

/* ============================
   X-LARGE (1280px+)
   Desktop
   ============================ */

@media (min-width: 1280px) {
  /* Container max width enforced */
  .container {
    max-width: var(--container-max-width);
  }

  /* Larger sections */
  :root {
    --section-padding-y: 7rem;
  }

  /* Better service cards */
  .services-section .grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================
   2X-LARGE (1536px+)
   Large Desktop
   ============================ */

@media (min-width: 1536px) {
  /* Even larger containers */
  .container-wide {
    max-width: var(--container-wide);
  }

  /* Typography scale */
  .hero-title {
    font-size: var(--font-size-7xl);
  }
}

/* ============================
   PRINT STYLES
   ============================ */

@media print {
  /* Hide navigation and non-essential elements */
  .site-header,
  .mobile-menu-btn,
  .carousel-controls,
  .cta-section,
  .site-footer {
    display: none;
  }

  /* Adjust colors for print */
  body {
    color: #000;
    background: #fff;
  }

  /* Remove backgrounds and shadows */
  .card,
  .stat-card,
  .transaction-card {
    box-shadow: none;
    border: 1px solid #000;
  }

  /* Page breaks */
  .section {
    page-break-inside: avoid;
  }

  /* Links */
  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }
}

/* ============================
   REDUCED MOTION
   ============================ */

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

  .carousel-track {
    transition: none;
  }

  .header-hidden {
    transition: none;
  }
}

/* ============================
   HIGH CONTRAST MODE
   ============================ */

@media (prefers-contrast: high) {
  :root {
    --color-primary-500: #000066;
    --color-accent-500: #CC9900;
    --color-border-medium: #000;
  }

  .card,
  .btn,
  .form-input {
    border-width: var(--border-width-medium);
  }
}

/* ============================
   LANDSCAPE ORIENTATION
   ============================ */

@media (max-height: 600px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: var(--spacing-3xl) var(--section-padding-x);
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

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

/* ============================
   TOUCH DEVICE ADJUSTMENTS
   ============================ */

@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .btn,
  .nav-link,
  .form-input,
  .form-textarea {
    min-height: 44px;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  /* Remove hover effects on touch devices */
  .card:hover {
    transform: none;
  }

  /* Dropdown behavior for touch */
  /* Add specific touch handling in JavaScript */
}

/* ============================
   RESPONSIVE UTILITIES
   ============================ */

/* Hide on mobile */
.hidden-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hidden-mobile {
    display: block;
  }
}

/* Hide on desktop */
.hidden-desktop {
  display: block;
}

@media (min-width: 1024px) {
  .hidden-desktop {
    display: none;
  }
}

/* Show only on mobile */
.mobile-only {
  display: block;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }
}

/* Show only on desktop */
.desktop-only {
  display: none;
}

@media (min-width: 1024px) {
  .desktop-only {
    display: block;
  }
}