/* BMLG Advertising - Global Styles */

:root {
  /* Light Mode Colors */
  --primary: #ff6b53;
  --bg: #ffffff;
  --accent: #f5f5f5;
  --accent-2: #e8e8e8;
  --text: #1a1d20;
  --text-secondary: #666666;
  --border: #dddddd;
  --success: #2ecc71;
  --error: #e74c3c;
  
  /* Spacing Scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg: #1a1d20;
  --accent: #2a2d31;
  --accent-2: #3a3d42;
  --text: #f5f5f5;
  --text-secondary: #b0b0b0;
  --border: #3a3d42;
  --primary: #ff8b73;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  transition: background-color var(--transition-slow), color var(--transition-slow);
  text-rendering: optimizeLegibility;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--text);
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  max-width: 70ch;
}

p strong {
  color: var(--text);
  font-weight: var(--font-weight-bold);
}

/* Links */
a {
  color: var(--primary);
  text-decoration: none;
  text-underline-offset: 2px;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

a:hover {
  color: var(--text);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Lists */
ul, ol {
  margin-bottom: var(--spacing-md);
  margin-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-sm);
}

/* Buttons */
button {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  cursor: pointer;
  border: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  padding: 0.625rem 1.25rem;
}

button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  min-height: 44px;
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.65;
  transform: none;
  box-shadow: none;
}

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

.btn-primary:hover {
  background-color: #e55a42;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

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

.btn-secondary:hover {
  background-color: var(--accent);
  border-color: var(--text);
  color: var(--text);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

/* Forms */
input, textarea, select {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: var(--bg);
  color: var(--text);
  transition: border-color var(--transition-fast);
  width: 100%;
}

select {
  line-height: 1.3;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 83, 0.1);
}

input::placeholder, textarea::placeholder {
  color: var(--text-secondary);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text);
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: #ffffff;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

/* Sections */
section {
  padding: var(--spacing-xxl) 0;
}

section:nth-child(even) {
  background-color: var(--accent);
}

.section-subtitle {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* Grid & Flexbox Utilities */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

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

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

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

/* Text Utilities */
.text-center {
  text-align: center;
}

.text-sm {
  font-size: var(--font-size-sm);
}

.text-lg {
  font-size: var(--font-size-lg);
}

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

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

.font-bold {
  font-weight: var(--font-weight-bold);
}

/* Visibility */
.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

/* Margin Utilities */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

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

/* Responsive Typography */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  body {
    font-size: 0.95rem;
  }
}