/* ==========================================================================
   AutoClassic - Custom CSS Design System
   ========================================================================== */

/* 1. CSS Custom Properties (:root) 
   ========================================================================== */
:root {
  /* Color Palette */
  --color-primary-dark: #1A2332;
  --color-primary: #2B4C7E;
  --color-primary-light: #3D6098;
  --color-accent-red: #C4392D;
  --color-accent-red-hover: #A8301F;
  --color-light-bg: #F5F6F8;
  --color-white: #FFFFFF;
  --color-surface: #E8EAEE;
  
  /* Text Colors */
  --color-text-primary: #1A2332;
  --color-text-secondary: #5A6478;
  --color-text-muted: #8892A0;
  
  /* Utilities */
  --color-border: #D1D5DC;
  --color-success: #2D8B56;

  /* Typography */
  --font-family-base: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Box Shadows */
  --shadow-subtle: 0 4px 6px -1px rgba(26, 35, 50, 0.05), 0 2px 4px -1px rgba(26, 35, 50, 0.03);
  --shadow-hover: 0 10px 15px -3px rgba(26, 35, 50, 0.08), 0 4px 6px -2px rgba(26, 35, 50, 0.04);
}

/* 2. Alpine.js FOUC Prevention 
   ========================================================================== */
[x-cloak] {
  display: none !important;
}

/* 3. Base Styles 
   ========================================================================== */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  color: var(--color-text-secondary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-primary);
  font-weight: 600;
  line-height: 1.2;
}

/* 4. Scroll Reveal Animations 
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  will-change: opacity, transform;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* 5. Navigation Styles 
   ========================================================================== */
.nav-base {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal), padding var(--transition-normal);
}

.nav-transparent {
  background-color: transparent;
  box-shadow: none;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.nav-solid {
  background-color: var(--color-white);
  box-shadow: var(--shadow-subtle);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.nav-solid .nav-link {
  color: var(--color-text-primary);
}

.nav-link {
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* Mobile Menu Transitions */
.mobile-menu-enter { transition: opacity var(--transition-fast), transform var(--transition-fast); }
.mobile-menu-enter-start { opacity: 0; transform: translateY(-10px); }
.mobile-menu-enter-end { opacity: 1; transform: translateY(0); }
.mobile-menu-leave { transition: opacity var(--transition-fast), transform var(--transition-fast); }
.mobile-menu-leave-start { opacity: 1; transform: translateY(0); }
.mobile-menu-leave-end { opacity: 0; transform: translateY(-10px); }

/* 6. Hero Section 
   ========================================================================== */
.hero-overlay {
  background: linear-gradient(to right, rgba(26, 35, 50, 0.8) 0%, rgba(26, 35, 50, 0.4) 100%);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  line-height: 1.1;
}

/* 7. Button Styles 
   ========================================================================== */
.btn-base {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px; /* Touch target minimum */
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: 0.375rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-accent-red-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-subtle);
  outline: none;
}

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--color-primary);
  color: var(--color-white);
  outline: none;
}

/* 8. Card Styles 
   ========================================================================== */
.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  will-change: transform, box-shadow;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.service-card-image-wrapper {
  overflow: hidden;
}

.service-card-image {
  transition: transform var(--transition-slow);
  will-change: transform;
}

.service-card:hover .service-card-image {
  transform: scale(1.05);
}

/* 9. Form Styling 
   ========================================================================== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  min-height: 44px; /* Touch target minimum */
  padding: 0.5rem 0.75rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43, 76, 126, 0.15);
}

/* 10. Mobile Action Bar 
   ========================================================================== */
.mobile-action-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-around;
  padding-bottom: env(safe-area-inset-bottom); /* iPhone notch support */
  z-index: 40;
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.05);
}

.mobile-action-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem;
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  text-decoration: none;
}

.mobile-action-item svg {
  margin-bottom: 0.25rem;
}

@media (min-width: 1024px) {
  .mobile-action-bar {
    display: none;
  }
}

/* 11. Quick Action Cards 
   ========================================================================== */
.quick-action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  background-color: var(--color-surface);
  border-radius: 0.5rem;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  min-height: 44px;
}

.quick-action-card:hover, .quick-action-card:focus {
  background-color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-subtle);
  outline: none;
  border: 1px solid var(--color-border);
}

.quick-action-icon {
  color: var(--color-primary);
  margin-bottom: 1rem;
}

/* 12. Section Styles 
   ========================================================================== */
.section-padding {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.section-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  display: block;
}

.section-heading {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

/* 13. Footer Styles 
   ========================================================================== */
.footer-base {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding-top: 4rem;
  padding-bottom: calc(4rem + env(safe-area-inset-bottom));
}

.footer-border {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 3rem;
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (max-width: 1023px) {
  .footer-base {
    padding-bottom: calc(5rem + env(safe-area-inset-bottom)); /* Extra padding for mobile action bar */
  }
}

/* 14. Presentation Mode 
   ========================================================================== */
.presentation-callout {
  display: none;
  background-color: rgba(43, 76, 126, 0.1);
  border-left: 4px solid var(--color-primary);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 0.375rem 0.375rem 0;
  font-size: 0.875rem;
  color: var(--color-text-primary);
}

.presentation-mode .presentation-callout {
  display: block;
}

/* 15. 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;
  }
  
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* 16. Responsive Adjustments 
   ========================================================================== */
@media (max-width: 768px) {
  .section-padding {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
  
  .section-heading {
    font-size: 1.875rem;
  }
}