/*
Theme Name: Biogrades Theme
Theme URI: https://biogradesinnovations.com
Author: Mandeep Singh
Author URI: https://biogradesinnovations.com
Description: A professional, compliance-focused WordPress theme designed for BIOGRADES INNOVATIONS (OPS) PRIVATE LIMITED. Built for Elementor as the primary page builder. Clean, corporate design with institutional-ready structure for tender review and procurement evaluation.
Version: 1.0.0
Requires at least: 5.8
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: biogrades-theme
Tags: elementor, b2b, corporate, compliance, packaging, custom-menu, custom-logo, featured-images, full-width-template, threaded-comments

BIOGRADES INNOVATIONS (OPS) PRIVATE LIMITED
Responsible Packaging Solutions for Commercial and Institutional Use

Theme Developer: Mandeep Singh
This theme is designed to be edited using Elementor as the primary page builder.
*/

/* ==========================================================================
   CSS CUSTOM PROPERTIES (DESIGN SYSTEM)
   These variables are available for Elementor to reference
   ========================================================================== */

:root {
    /* Primary Colors */
    --bg-color-primary: #ffffff;
    --bg-color-secondary: #f8f9fa;
    --bg-color-tertiary: #f1f3f5;
    
    /* Accent Colors - Soft Green */
    --accent-color-primary: #4a7c59;
    --accent-color-secondary: #6b9b7a;
    --accent-color-light: #e8f0eb;
    --accent-color-dark: #3d6649;
    
    /* Text Colors */
    --text-color-primary: #2d3436;
    --text-color-secondary: #636e72;
    --text-color-tertiary: #95a5a6;
    --text-color-light: #ffffff;
    
    /* Border Colors */
    --border-color-light: #e9ecef;
    --border-color-medium: #dee2e6;
    --border-color-dark: #adb5bd;
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-family-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-md: 1.125rem;   /* 18px */
    --font-size-lg: 1.25rem;    /* 20px */
    --font-size-xl: 1.5rem;     /* 24px */
    --font-size-2xl: 1.875rem;  /* 30px */
    --font-size-3xl: 2.25rem;   /* 36px */
    --font-size-4xl: 3rem;      /* 48px */
    
    /* 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-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing Scale */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    --spacing-4xl: 6rem;     /* 96px */
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
    --container-2xl: 1400px;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ==========================================================================
   BASE RESET & TYPOGRAPHY
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--text-color-primary);
    background-color: var(--bg-color-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Heading Hierarchy - Optimized for Compliance Content */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-family-primary);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-color-primary);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
}

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-md);
}

p {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

/* Long-form Content Optimization */
article p,
.entry-content p {
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

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

a:hover,
a:focus {
    color: var(--accent-color-dark);
    text-decoration: underline;
}

/* Lists */
ul, ol {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

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

/* ==========================================================================
   LAYOUT - MINIMAL STRUCTURE FOR ELEMENTOR
   ========================================================================== */

/* Main Site Container */
.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Main Content Area - Grows to fill space */
.site-main {
    flex: 1 0 auto;
}

/* Content Wrapper for Non-Elementor Pages */
.content-wrapper {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

/* Full Width Container for Elementor */
.elementor-page .site-main,
.elementor-page-template .site-main {
    width: 100%;
    padding: 0;
    margin: 0;
}

/* ==========================================================================
   HEADER STYLES
   ========================================================================== */

.site-header {
    position: relative;
    z-index: 100;
    background-color: var(--bg-color-primary);
    border-bottom: 1px solid var(--border-color-light);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
}

/* Site Branding */
.site-branding {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.site-logo img {
    height: auto;
    max-height: 60px;
    width: auto;
}

.site-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-color-primary);
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.site-description {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
}

/* Primary Navigation */
.primary-navigation {
    display: none;
}

@media (min-width: 992px) {
    .primary-navigation {
        display: block;
    }
}

.primary-navigation ul {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
    list-style: none;
}

.primary-navigation li {
    margin: 0;
}

.primary-navigation a {
    display: block;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.primary-navigation a:hover,
.primary-navigation .current-menu-item a {
    color: var(--accent-color-primary);
}

/* Sub-menu */
.primary-navigation .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    padding: var(--spacing-sm) 0;
    background: var(--bg-color-primary);
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

.primary-navigation li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.primary-navigation .sub-menu a {
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

@media (min-width: 992px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-color-primary);
    position: relative;
}

.mobile-menu-toggle span::before,
.mobile-menu-toggle span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--text-color-primary);
}

.mobile-menu-toggle span::before {
    top: -8px;
}

.mobile-menu-toggle span::after {
    bottom: -8px;
}

/* ==========================================================================
   FOOTER STYLES
   ========================================================================== */

.site-footer {
    flex-shrink: 0;
    background-color: var(--bg-color-secondary);
    border-top: 1px solid var(--border-color-light);
}

.footer-inner {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
}

/* Footer Widgets Area */
.footer-widgets {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-widgets {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-widget h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--text-color-primary);
}

.footer-widget ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

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

.footer-widget a {
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
}

.footer-widget a:hover {
    color: var(--accent-color-primary);
}

/* Footer Navigation */
.footer-navigation ul {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-navigation a {
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
}

.footer-navigation a:hover {
    color: var(--accent-color-primary);
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color-light);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
}

.footer-company-info {
    font-size: var(--font-size-sm);
    color: var(--text-color-tertiary);
}

/* ==========================================================================
   ELEMENTOR-FRIENDLY CSS CLASSES
   Use these classes when designing sections in Elementor
   ========================================================================== */

/* Section Backgrounds */
.bg-white { background-color: var(--bg-color-primary); }
.bg-light { background-color: var(--bg-color-secondary); }
.bg-accent-light { background-color: var(--accent-color-light); }
.bg-accent { background-color: var(--accent-color-primary); }

/* Text Colors */
.text-primary { color: var(--text-color-primary); }
.text-secondary { color: var(--text-color-secondary); }
.text-white { color: var(--text-color-light); }
.text-accent { color: var(--accent-color-primary); }

/* Section Padding */
.section-padding-sm { padding: var(--spacing-xl) 0; }
.section-padding-md { padding: var(--spacing-2xl) 0; }
.section-padding-lg { padding: var(--spacing-3xl) 0; }
.section-padding-xl { padding: var(--spacing-4xl) 0; }

/* ==========================================================================
   PRODUCT-SPECIFIC CLASSES (For Elementor)
   
   USAGE GUIDE:
   When designing product pages in Elementor, apply these classes
   to respective sections for consistent styling:
   ========================================================================== */

/* Product Description Section */
.product-description {
    padding: var(--spacing-xl) 0;
}

.product-description p {
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
    color: var(--text-color-secondary);
}

/* Key Features Section */
.product-features {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-color-secondary);
}

.product-features ul {
    padding-left: var(--spacing-lg);
}

.product-features li {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--text-color-primary);
}

/* Applications Section */
.product-applications {
    padding: var(--spacing-xl) 0;
}

/* Technical Specifications Table */
.product-specifications {
    padding: var(--spacing-xl) 0;
}

.product-specifications table,
.specifications-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

.product-specifications th,
.specifications-table th {
    padding: var(--spacing-md);
    background-color: var(--bg-color-secondary);
    border: 1px solid var(--border-color-medium);
    font-weight: var(--font-weight-semibold);
    text-align: left;
    font-size: var(--font-size-sm);
    color: var(--text-color-primary);
}

.product-specifications td,
.specifications-table td {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color-medium);
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
}

.product-specifications tr:nth-child(even) td,
.specifications-table tr:nth-child(even) td {
    background-color: var(--bg-color-secondary);
}

/* Compliance Statement Section */
.product-compliance {
    padding: var(--spacing-xl);
    background-color: var(--accent-color-light);
    border-left: 4px solid var(--accent-color-primary);
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
}

.product-compliance h4 {
    color: var(--accent-color-dark);
    margin-bottom: var(--spacing-md);
}

/* Usage & Disposal Guidance */
.product-usage-guidance {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color-light);
}

.product-usage-guidance h4 {
    margin-bottom: var(--spacing-md);
}

/* Disclaimer Section */
.product-disclaimer,
.disclaimer-section {
    padding: var(--spacing-lg);
    background-color: var(--bg-color-tertiary);
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
}

.product-disclaimer p,
.disclaimer-section p {
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
    margin-bottom: 0;
}

/* ==========================================================================
   COMPLIANCE & INSTITUTIONAL CONTENT STYLES
   ========================================================================== */

/* Certification Badges */
.certification-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-color-secondary);
    border: 1px solid var(--border-color-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
}

/* Document Reference */
.document-reference {
    padding: var(--spacing-md);
    background-color: var(--bg-color-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

/* Policy Sections */
.policy-content {
    max-width: 800px;
    margin: 0 auto;
}

.policy-content h2 {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color-light);
}

.policy-content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* ==========================================================================
   BUTTONS & CTA STYLES
   ========================================================================== */

.btn,
.button,
button[type="submit"],
input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--accent-color-dark);
    color: var(--text-color-light);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background-color: var(--accent-color-primary);
    color: var(--text-color-light);
    text-decoration: none;
}

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

.btn-outline:hover {
    background-color: var(--bg-color-secondary);
    text-decoration: none;
}

/* ==========================================================================
   FORMS
   ========================================================================== */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    color: var(--text-color-primary);
    background-color: var(--bg-color-primary);
    border: 1px solid var(--border-color-medium);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color-primary);
}

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

/* ==========================================================================
   TABLES - For Compliance Documentation
   ========================================================================== */

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-xl);
}

th, td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color-light);
}

th {
    font-weight: var(--font-weight-semibold);
    color: var(--text-color-primary);
    background-color: var(--bg-color-secondary);
}

tr:hover td {
    background-color: var(--bg-color-secondary);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

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

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

.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2.25rem;
        --font-size-3xl: 1.875rem;
        --font-size-2xl: 1.5rem;
    }
    
    .header-inner {
        padding: var(--spacing-md);
    }
    
    .footer-inner {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .content-wrapper {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */

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

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

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-color-light: #000000;
        --border-color-medium: #000000;
    }
}

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

@media print {
    .site-header,
    .site-footer,
    .mobile-menu-toggle {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000000;
        background: #ffffff;
    }
    
    a {
        color: #000000;
        text-decoration: underline;
    }
    
    .site-main {
        padding: 0;
    }
}