/* ===================================
   🎨 Far Beyond Bookkeeping
   Enterprise SaaS Professional Design System
   =================================== */

/* ===================================
   CSS Variables & Color Palette
   =================================== */
:root {
  /* Primary Brand Color - Emerald Green (SaaS Professional) */
  --color-primary: #10B981;
  --color-primary-light: #34D399;
  --color-primary-dark: #059669;
  --color-primary-lighter: #6EE7B7;

  /* Secondary Brand Color - Deep Corporate Blue */
  --color-secondary: #1E40AF;
  --color-secondary-light: #3B82F6;
  --color-secondary-dark: #1E3A8A;

  /* Success/Action Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* Neutral Colors - Modern SaaS Grayscale */
  --color-white: #ffffff;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #94A3B8;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Background Colors */
  --bg-hero-start: #00C853;
  --bg-hero-end: #047857;
  --bg-primary: #00C853;
  --bg-white: #ffffff;
  --bg-gray-50: #F9FAFB;
  --bg-light: #F8FAFC;

  /* Text Colors */
  --text-primary: #1F2937;
  --text-secondary: #4B5563;
  --text-muted: #6B7280;
  --text-white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00C853 0%, #047857 100%);
  --gradient-hero: linear-gradient(135deg, #34D399 0%, #10B981 100%);
  --gradient-dark: linear-gradient(180deg, #1F2937 0%, #111827 100%);
  --gradient-subtle: linear-gradient(135deg, #6EE7B0 0%, #34D399 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.95) 100%);

  /* Typography - Professional SaaS Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;

  /* Spacing System - Consistent SaaS Scale */
  --spacing-xs: 0.25rem;    /* 4px */
  --spacing-sm: 0.5rem;     /* 8px */
  --spacing-md: 0.75rem;    /* 12px */
  --spacing-lg: 1rem;        /* 16px */
  --spacing-xl: 1.5rem;       /* 24px */
  --spacing-2xl: 2rem;       /* 32px */
  --spacing-3xl: 2.5rem;      /* 40px */
  --spacing-4xl: 3rem;       /* 48px */

  /* Border Radius - Modern SaaS Style */
  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;        /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */

  /* Shadows - Professional Depth */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px -1px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px 0 rgba(0, 200, 83, 0.3);

  /* Transitions - Smooth SaaS Interactions */
  --transition-fast: 150ms;
  --transition-base: 200ms;
  --transition-slow: 300ms;

  /* Z-Index Layers */
  --z-dropdown: 1000;
  --z-sticky: 50;
  --z-modal: 1050;
  --z-tooltip: 1070;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-white);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography System
   =================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.75rem;  /* 44px */
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h2 {
  font-size: 3rem !important;  /* 48px */
  letter-spacing: -0.01em;
  line-height: 1.2;
  font-weight: 700 !important;
}

h3 {
  font-size: 1.75rem;  /* 28px */
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.5rem;   /* 24px */
  letter-spacing: -0.005em;
}

h5 {
  font-size: 1.25rem;  /* 20px */
  font-weight: 600;
}

h6 {
  font-size: 1.125rem;  /* 18px */
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  line-height: 1.7;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base) ease;
}

a:hover {
  color: var(--color-primary-light);
}

/* ===================================
   Container System
   =================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.container-hero {
  width: 100%;
  max-width: 1536px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.container-compact {
  width: 100%;
  max-width: 1024px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.container-narrow {
  width: 100%;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

@media (max-width: 640px) {
  .container, .container-hero, .container-compact, .container-narrow {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
}

/* ===================================
   Section Styles
   =================================== */
.section {
  padding-top: var(--spacing-4xl);
  padding-bottom: var(--spacing-4xl);
  position: relative;
}

.section-sm {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

.section-lg {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

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

.bg-gray-50 {
  background-color: var(--bg-gray-50);
}

/* ===================================
   Hero Section - Professional SaaS
   =================================== */
.hero {
  background: var(--gradient-hero);
  color: var(--text-white);
  position: relative;
  overflow: hidden;
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.hero-title {
  font-size: 3rem;  /* 48px */
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: #047857;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;  /* 20px */
  line-height: 1.6;
  opacity: 0.95;
  color: var(--color-white);
  margin-bottom: var(--spacing-xl);
  max-width: 42rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-gradient {
  background: var(--gradient-hero);
  color: var(--color-white);
}

/* ===================================
   Buttons - SaaS Professional
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base) ease;
  border: 2px solid transparent;
  font-family: var(--font-sans);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  border-color: transparent;
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
  border-color: transparent;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: var(--color-secondary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background: var(--bg-gray-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-outline-light:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.875rem;
}

/* ===================================
   Cards - Professional SaaS
   =================================== */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base) ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  opacity: 0;
  transition: opacity var(--transition-base) ease;
}

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

.card:hover::before {
  opacity: 1;
}

.card-elevated {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
  border: none;
  position: relative;
}

.card-elevated::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-primary) 50%, transparent 100%);
  opacity: 0.5;
}

.card-gradient {
  background: var(--gradient-subtle);
  color: var(--text-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.card-gradient h3 {
  color: var(--color-white);
}

/* ===================================
   Service Cards - Clickable
   =================================== */
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base) ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  opacity: 0;
  transition: opacity var(--transition-base) ease;
}

.service-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
  border-color: var(--color-primary-light);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 4rem;
  height: 4rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-base) ease;
}

.service-card:hover .service-icon {
  transform: scale(1.1);
  color: var(--color-primary-light);
}

.service-card h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: color var(--transition-base) ease;
}

.service-card:hover h3 {
  color: var(--color-primary);
}

.service-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================
   Testimonial Cards
   =================================== */
.testimonial-card {
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base) ease;
}

/* ===================================
   Feature Cards
   =================================== */
.feature-card {
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base) ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: inherit;
}

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

.feature-icon {
  width: 4rem;
  height: 4rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-base) ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
  color: var(--color-primary-light);
}

/* ===================================
   Stats Cards
   =================================== */
.stats-card {
  background: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-base) ease;
}

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

.stats-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

.stats-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ===================================
   FAQ Items
   =================================== */
.faq-item {
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base) ease;
}

.faq-item:hover {
  border-color: var(--color-primary-light);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-lg);
  background: var(--color-white);
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-base) ease;
}

.faq-question:hover {
  background: var(--bg-gray-50);
  color: var(--color-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: transform var(--transition-base) ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease;
  padding: 0 var(--spacing-lg);
}

.faq-item.active .faq-answer {
  max-height: 1000px;
  padding-bottom: var(--spacing-lg);
}

/* ===================================
   Background Colors
   =================================== */
.bg-off-white {
  background-color: var(--bg-gray-50);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.testimonial-rating {
  color: #F59E0B;
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}

.testimonial-text {
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  min-height: 120px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  box-shadow: var(--shadow-glow);
}

.testimonial-info h4 {
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.testimonial-info p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ===================================
   Breadcrumbs
   =================================== */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) 0;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xl);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast) ease;
}

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

.breadcrumb-separator {
  color: var(--color-gray-400);
  margin: 0 var(--spacing-xs);
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 600;
}

/* ===================================
   Skip Link
   =================================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  z-index: var(--z-tooltip);
  transition: top var(--transition-base) ease;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--color-white);
  outline-offset: 3px;
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-slideUp {
  animation: slideUp 0.8s ease-out forwards;
}

/* ===================================
   Utility Classes
   =================================== */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

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

.text-secondary {
  color: var(--text-secondary);
}

.text-muted {
  color: var(--text-muted);
}

.text-white {
  color: var(--color-white);
}

.text-xl {
  font-size: 1.25rem;
  font-weight: 600;
}

.text-2xl {
  font-size: 1.5rem;
  font-weight: 700;
}

.text-3xl {
  font-size: 1.875rem;
  font-weight: 700;
}

.text-4xl {
  font-size: 2.25rem;
  font-weight: 800;
}

.text-lg {
  font-size: 1.125rem;
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.capitalize {
  text-transform: capitalize;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-6 { margin-top: var(--spacing-xl); }
.mt-8 { margin-top: var(--spacing-2xl); }
.mt-12 { margin-top: var(--spacing-3xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-6 { margin-bottom: var(--spacing-xl); }
.mb-8 { margin-bottom: var(--spacing-2xl); }
.mb-12 { margin-bottom: var(--spacing-3xl); }

.p-6 { padding: var(--spacing-lg); }

.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-6 { gap: var(--spacing-xl); }
.gap-8 { gap: var(--spacing-2xl); }
.gap-12 { gap: var(--spacing-3xl); }

.block { display: block; }
.inline { display: inline; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }
.relative { position: relative; }
.w-full { width: 100%; }

.max-w-3xl {
  max-width: 48rem;
}

.max-w-4xl {
  max-width: 56rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.items-start {
  align-items: flex-start;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.flex-col {
  flex-direction: column;
}

.grow {
  flex-grow: 1;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.space-y-3 > * + * {
  margin-top: 0;
}

.space-y-3 > * + * + * {
  margin-top: var(--spacing-md);
}

.space-y-4 > * + * {
  margin-top: 0;
}

.space-y-4 > * + * + * {
  margin-top: var(--spacing-lg);
}

.space-y-6 > * + * {
  margin-top: 0;
}

.space-y-6 > * + * + * {
  margin-top: var(--spacing-xl);
}

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

.transition {
  transition: all var(--transition-base) ease;
}

.visible {
  visibility: visible;
}

/* ===================================
   Responsive Breakpoints
   =================================== */
@media (max-width: 767px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 2.25rem !important; }
  h3 { font-size: 1.75rem; }
  h4 { font-size: 1.5rem; }

  .hero-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
  }

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  .card,
  .card-elevated {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 0.875rem;
  }

  .service-card {
    padding: var(--spacing-lg);
  }

  .btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
  }
}

/* ===================================
   Focus States for Accessibility
   =================================== */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===================================
    Print Styles
    =================================== */
@media print {
  .hero,
  .btn {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }
}

/* ===================================
    Footer Styles
    =================================== */
.footer {
  background-color: var(--color-gray-900);
  color: var(--color-white);
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.footer-section {
  display: flex;
  flex-direction: column;
}

.footer-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.footer-description {
  color: var(--color-gray-400);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-size: 0.9375rem;
}

.footer-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links li {
  margin: 0;
}

.footer-link {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: color var(--transition-base) ease;
  font-size: 0.9375rem;
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer-cta {
  margin-top: var(--spacing-lg);
  width: fit-content;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: all var(--transition-base) ease;
  color: var(--color-white);
}

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

.footer-social-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.footer-copyright {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-sm);
}

.footer-legal {
  color: var(--color-gray-500);
  font-size: 0.875rem;
}

.footer-legal-separator {
  margin: 0 var(--spacing-sm);
  color: var(--color-gray-600);
}

/* Designer Credit */
.footer-designer-credit {
  background-color: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-designer-credit p {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  margin: 0;
}

.footer-designer-credit .footer-link {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: color var(--transition-base) ease;
}

.footer-designer-credit .footer-link:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

/* ===================================
   Responsive Breakpoints
   =================================== */
@media (max-width: 767px) {
  /* Typography */
  h1 { font-size: 2rem; }
  h2 { font-size: 2.25rem !important; }
  h3 { font-size: 1.75rem; }
  h4 { font-size: 1.5rem; }

  .hero-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
  }

  /* Grid columns - collapse to 1 column on mobile */
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr !important;
  }

  /* Card padding adjustment */
  .card,
  .card-elevated {
    padding: var(--spacing-lg);
  }

  /* Section spacing */
  .section {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }

  /* Container adjustments */
  .container,
  .container-hero,
  .container-compact,
  .container-narrow {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 0.875rem;
  }

  .service-card {
    padding: var(--spacing-lg);
  }

  .btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
  }
}

/* ===================================
   Footer Responsive
   =================================== */
@media (max-width: 767px) {
  .footer {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }

  .footer-title {
    font-size: 1.125rem;
  }
}

/* ===================================
   Floating Email Button (Mobile Only)
   =================================== */
.floating-email-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #10B981, #059669);
  border-radius: 50%;
  display: none; /* Hidden by default */
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
  z-index: 9999;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.3s ease;
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, 0.3);
  text-decoration: none;
}

.floating-email-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.5);
}

.floating-email-btn:active {
  transform: scale(0.95);
}

.floating-email-btn.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.floating-email-btn svg {
  width: 30px;
  height: 30px;
}

/* Show on mobile only */
@media (max-width: 767px) {
  .floating-email-btn {
    display: flex;
  }
}

/* Slightly smaller for very small screens */
@media (max-width: 375px) {
  .floating-email-btn {
    width: 56px;
    height: 56px;
    bottom: 20px;
    right: 20px;
  }

  .floating-email-btn svg {
    width: 26px;
    height: 26px;
  }
}