/*
Theme Name: Envantis Procurement
Theme URI: https://envantis-procurement.co.uk
Author: Blake Reynolds
Description: A custom WordPress theme for Envantis Procurement - focused on sustainability and eco-friendly procurement solutions. Professional, clean design with green color scheme.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: envantis-procurement
*/

/* ==========================================================================
   CSS Variables - Brand Colors & Typography
   ========================================================================== */
:root {
  /* Primary Green Palette */
  --color-primary: #2d5f3f;
  --color-primary-light: #4a8c5f;
  --color-primary-dark: #1a3a2a;
  --color-secondary: #7cb342;
  --color-accent: #a5d6a7;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-off-white: #f8f9fa;
  --color-light-gray: #e9ecef;
  --color-gray: #6c757d;
  --color-dark-gray: #343a40;
  --color-black: #212529;
  
  /* Status Colors */
  --color-success: #28a745;
  --color-error: #dc3545;
  --color-warning: #ffc107;
  --color-info: #17a2b8;
  
  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-secondary: Georgia, 'Times New Roman', serif;
  
  /* 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;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --container-padding: 1rem;
  --border-radius: 0.25rem;
  --border-radius-lg: 0.5rem;
  
  /* Transitions */
  --transition-speed: 0.3s;
  --transition-ease: ease-in-out;
  
  /* 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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-black);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary-dark);
}

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
}

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);
}

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

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

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

a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Layout - Container
   ========================================================================== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.container-fluid {
  width: 100%;
  padding: 0 var(--container-padding);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-ease);
  line-height: 1.5;
}

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

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: #689f38;
  border-color: #689f38;
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

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

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

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-speed) var(--transition-ease);
}

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

.site-branding {
  display: flex;
  align-items: center;
}

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

.site-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0;
  color: var(--color-primary-dark);
}

.site-title a {
  color: var(--color-primary-dark);
  text-decoration: none;
}

.site-title a:hover {
  color: var(--color-primary);
}

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

/* ==========================================================================
   Navigation
   ========================================================================== */
.main-navigation {
  display: flex;
  align-items: center;
}

.main-navigation ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation li {
  margin: 0;
  position: relative;
}

.main-navigation a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-dark-gray);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-speed) var(--transition-ease);
}

.main-navigation a:hover,
.main-navigation a:focus,
.main-navigation .current-menu-item > a,
.main-navigation .current_page_item > a {
  color: var(--color-primary);
  text-decoration: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
}

.menu-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Dropdown Menus */
.main-navigation ul ul {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  display: none;
  flex-direction: column;
  z-index: 1000;
  border-radius: var(--border-radius);
}

.main-navigation ul li:hover > ul,
.main-navigation ul li:focus-within > ul {
  display: flex;
}

.main-navigation ul ul li {
  width: 100%;
}

.main-navigation ul ul a {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-light-gray);
}

.main-navigation ul ul li:last-child a {
  border-bottom: none;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,0 L1200,0 L1200,60 Q900,90 600,60 T0,60 Z" fill="rgba(255,255,255,0.05)"/></svg>') repeat-x bottom;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  color: var(--color-white);
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

.hero .btn {
  margin-right: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Content Sections
   ========================================================================== */
.content-section {
  padding: var(--spacing-3xl) 0;
}

.content-section.bg-light {
  background-color: var(--color-off-white);
}

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

.content-section.bg-primary h2,
.content-section.bg-primary h3,
.content-section.bg-primary h4 {
  color: var(--color-white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  position: relative;
  display: inline-block;
  padding-bottom: var(--spacing-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-secondary);
  border-radius: 2px;
}

.section-subtitle {
  color: var(--color-gray);
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-md);
}

/* ==========================================================================
   Cards & Grid
   ========================================================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  transition: transform var(--transition-speed) var(--transition-ease),
              box-shadow var(--transition-speed) var(--transition-ease);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  font-size: var(--font-size-4xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  display: block;
}

.card h3 {
  margin-bottom: var(--spacing-md);
}

.card p {
  color: var(--color-gray);
  margin-bottom: var(--spacing-lg);
}

.card .btn {
  width: 100%;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-dark-gray);
}

.form-control {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-primary);
  border: 2px solid var(--color-light-gray);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-speed) var(--transition-ease),
              box-shadow var(--transition-speed) var(--transition-ease);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 95, 63, 0.1);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: block;
}

.form-success {
  color: var(--color-success);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: block;
}

.alert {
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-md);
}

.footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-widget h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

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

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

.footer-widget a {
  color: var(--color-accent);
  text-decoration: none;
}

.footer-widget a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-accent);
}

.footer-bottom a {
  color: var(--color-white);
}

/* ==========================================================================
   Blog & Posts
   ========================================================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.post-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-speed) var(--transition-ease),
              box-shadow var(--transition-speed) var(--transition-ease);
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.post-thumbnail {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.post-content {
  padding: var(--spacing-lg);
}

.post-meta {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  margin-bottom: var(--spacing-md);
}

.post-title {
  margin-bottom: var(--spacing-md);
}

.post-title a {
  color: var(--color-primary-dark);
  text-decoration: none;
}

.post-title a:hover {
  color: var(--color-primary);
}

.post-excerpt {
  color: var(--color-gray);
  margin-bottom: var(--spacing-md);
}

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

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

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }
.pt-4 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-xl); }

.d-none {
  display: none;
}

.d-block {
  display: block;
}

.d-flex {
  display: flex;
}

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

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

/* ==========================================================================
   Accessibility
   ========================================================================== */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background-color: var(--color-off-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  clip: auto !important;
  color: var(--color-primary);
  display: block;
  font-size: var(--font-size-sm);
  font-weight: bold;
  height: auto;
  left: 5px;
  line-height: normal;
  padding: var(--spacing-md);
  text-decoration: none;
  top: 5px;
  width: auto;
  z-index: 100000;
}

/* ==========================================================================
   Responsive Design - Tablet (768px)
   ========================================================================== */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-5xl: 2.5rem;
  }

  .menu-toggle {
    display: block;
  }

  .main-navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-speed) var(--transition-ease);
    overflow-y: auto;
    z-index: 9999;
  }

  .main-navigation.active {
    right: 0;
  }

  .main-navigation ul {
    flex-direction: column;
    padding: var(--spacing-xl);
  }

  .main-navigation li {
    width: 100%;
    border-bottom: 1px solid var(--color-light-gray);
  }

  .main-navigation a {
    padding: var(--spacing-md);
  }

  .main-navigation ul ul {
    position: static;
    box-shadow: none;
    background-color: var(--color-off-white);
  }

  .hero {
    padding: var(--spacing-2xl) 0;
  }

  .hero h1 {
    font-size: var(--font-size-4xl);
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .footer-widgets {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Responsive Design - Mobile (480px)
   ========================================================================== */
@media (max-width: 480px) {
  :root {
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 1.75rem;
    --font-size-5xl: 2rem;
    --spacing-3xl: 2rem;
  }

  .container {
    --container-padding: 0.75rem;
  }

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

  .hero .btn {
    display: block;
    margin-bottom: var(--spacing-md);
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
  .site-header,
  .menu-toggle,
  .main-navigation,
  .site-footer,
  .btn {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}

ul#menu-main-menu li.menu-item {
  margin-top: 20px !important;
}