/* ==============================================
   ModulesLink Design Tokens - B2B Industrial Style
   ============================================== */

/* Color Palette - Professional Industrial Theme */
:root {
    /* Primary Colors - Trust and Reliability */
    --primary: #165DFF;
    --primary-dark: #0D47A1;
    --primary-light: #4080FF;
    --primary-50: #E8F0FF;
    --primary-100: #D0E0FF;
    --primary-200: #A7C7FF;
    
    /* Secondary Colors - Technology and Innovation */
    --secondary: #00D4AA;
    --secondary-dark: #00A88A;
    --secondary-light: #4DE8CB;
    
    /* Accent Colors - Call to Action */
    --accent: #165DFF;
    --accent-hover: #0D47A1;
    
    /* Success Colors */
    --success: #22C55E;
    --success-light: #86EFAC;
    
    /* Warning Colors */
    --warning: #F59E0B;
    --warning-light: #FCD34D;
    
    /* Error Colors */
    --error: #EF4444;
    --error-light: #FCA5A5;
    
    /* Neutral Colors - Clean Professional Look */
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-tertiary: #9CA3AF;
    --text-white: #FFFFFF;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F3F4F6;
    --bg-tertiary: #E5E7EB;
    --bg-dark: #1F2937;
    
    --border-color: #E5E7EB;
    --border-light: #F3F4F6;
    --border-dark: #D1D5DB;
    
    /* Typography - Modern Professional Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing - Consistent Whitespace */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius - Soft Modern Look */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows - Professional Depth */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions - Smooth Interactions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Z-Index - Layer Management */
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 900;
    --z-modal: 1000;
    --z-toast: 1050;
    
    /* Container - Responsive Widths */
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Section Padding */
    --section-padding-y: 4rem;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #F9FAFB;
        --text-secondary: #D1D5DB;
        --text-tertiary: #9CA3AF;
        --bg-primary: #1F2937;
        --bg-secondary: #374151;
        --bg-tertiary: #4B5563;
        --border-color: #4B5563;
        --border-light: #374151;
    }
}

/* ==============================================
   B2B Industrial Style Guidelines
   ============================================== */

/* Professional Typography */
body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Headings - Clear Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

/* Body Text */
p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Links - Professional Appearance */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Buttons - Call to Action */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--primary-50);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Cards - Professional Container */
.card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

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

/* Badges - Status Indicators */
.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background-color: var(--primary-100);
    color: var(--primary);
}

.badge-success {
    background-color: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background-color: var(--warning-light);
    color: var(--warning);
}

/* Dividers */
.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--spacing-xl) 0;
}

/* ==============================================
   Responsive Typography
   ============================================== */
@media (max-width: 768px) {
    :root {
        --font-size-2xl: 1.25rem;
        --font-size-3xl: 1.5rem;
        --font-size-4xl: 1.75rem;
        --font-size-5xl: 2rem;
    }
    
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    h3 { font-size: var(--font-size-xl); }
}

/* ==============================================
   Accessibility & SEO
   ============================================== */

/* Focus States */
.btn:focus,
a:focus,
input:focus,
button:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* High Contrast for Readability */
@media (prefers-contrast: high) {
    :root {
        --primary: #0066CC;
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #666666;
    }
}

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