/* style.css - AMRIC Master Design System (mobile-first) */

/*--------------------------------------------------------------
# CSS Variables - AMRIC Brand Palette
--------------------------------------------------------------*/
:root {
  /* Primary Colors - AMRIC */
  --primary-color: #2E7D32;
  --primary-dark: #1B5E20;
  --primary-light: #A5D6A7;
  --secondary-color: #F9A825;
  --secondary-dark: #e68900;

  /* Text Colors */
  --text-dark: #2F2F2F;
  --text-color: #555555;
  --text-light: #777777;
  --text-muted: #999999;

  /* Background Colors */
  --bg-color: #ffffff;
  --bg-light: #E8F5E9;
  --bg-secondary: #FFF3E0;
  --bg-dark: #f8f9fa;

  /* Border and Accent Colors */
  --border-color: #e0e0e0;
  --border-light: #f0f0f0;
  --success-color: #2E7D32;
  --warning-color: #F9A825;
  --error-color: #dc3545;

  /* Shadows */
  --shadow-light: 0 2px 10px rgba(46, 125, 50, 0.08);
  --shadow-medium: 0 4px 20px rgba(46, 125, 50, 0.12);
  --shadow-heavy: 0 8px 30px rgba(46, 125, 50, 0.15);

  /* Typography */
  --font-primary: 'Montserrat', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-secondary: 'Open Sans', Arial, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extra-bold: 800;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.25rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 2.5rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-round: 50%;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/*--------------------------------------------------------------
# Reset and Base Styles
--------------------------------------------------------------*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

body {
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/*--------------------------------------------------------------
# Typography (mobile-first sizes; scale up at breakpoints below)
--------------------------------------------------------------*/
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  color: var(--text-dark);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 1.875rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
}

h3 {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
}

h4 {
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
}

h5 {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
}

h6 {
  font-size: 0.9rem;
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

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

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

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

strong, b {
  font-weight: var(--font-weight-semibold);
}

em, i {
  font-style: italic;
}

/*--------------------------------------------------------------
# Layout Components
--------------------------------------------------------------*/
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 calc(-1 * var(--spacing-xs));
}

.col {
  flex: 1;
  padding: 0 var(--spacing-xs);
}

/*--------------------------------------------------------------
# Accessibility: Skip Link
--------------------------------------------------------------*/
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--spacing-sm);
  z-index: 2000;
  background-color: var(--primary-color);
  color: white;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--spacing-sm);
  color: white;
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

/*--------------------------------------------------------------
# Accessibility: keyboard focus visibility (mouse clicks stay clean)
--------------------------------------------------------------*/
:focus:not(:focus-visible) {
  outline: none;
}

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

/*--------------------------------------------------------------
# Custom Scrollbar (WebKit + Firefox)
--------------------------------------------------------------*/
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--primary-light) var(--bg-light);
}

/*--------------------------------------------------------------
# Image Loading Skeleton (use class="img-skeleton" on a wrapping
# span/div around an <img>, or add directly to an <img> while loading)
--------------------------------------------------------------*/
.img-skeleton {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-light);
}

.img-skeleton::before {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 150%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.5),
    transparent
  );
  animation: skeletonShimmer 1.4s ease-in-out infinite;
}

@keyframes skeletonShimmer {
  0%   { left: -150%; }
  100% { left: 150%; }
}

.img-skeleton img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  .img-skeleton::before {
    animation: none;
  }
}

/*--------------------------------------------------------------
# Header Styles
--------------------------------------------------------------*/
.site-header {
  background-color: var(--bg-color);
  box-shadow: var(--shadow-light);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  min-height: auto;
}

.site-logo {
  font-family: var(--font-primary);
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  text-decoration: none;
}

.site-logo img {
  max-height: 40px;
  width: auto;
}

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

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-sm);
}

.nav-menu li {
  position: relative;
}

.nav-menu a {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  color: var(--text-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: block;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary-color);
  background-color: var(--bg-light);
}

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

/*--------------------------------------------------------------
# Button Styles
--------------------------------------------------------------*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.2);
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

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

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--text-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

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

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

.btn-small {
  padding: 7px 14px;
  font-size: 0.825rem;
}

.btn-large {
  padding: 14px 28px;
  font-size: 1.05rem;
}

/*--------------------------------------------------------------
# Form Styles
--------------------------------------------------------------*/
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
  font-size: 0.95rem;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-secondary);
  font-size: 1rem;
  color: var(--text-color);
  background-color: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

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

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/*--------------------------------------------------------------
# Card Styles
--------------------------------------------------------------*/
.card {
  background-color: var(--bg-color);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-light);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.card-header {
  padding: var(--spacing-md);
  background-color: var(--bg-light);
  border-bottom: 1px solid var(--border-light);
}

.card-body {
  padding: var(--spacing-md);
}

.card-footer {
  padding: var(--spacing-md);
  background-color: var(--bg-light);
  border-top: 1px solid var(--border-light);
}

.card-title {
  font-size: 1.15rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

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

/*--------------------------------------------------------------
# Grid System (mobile-first: single column, expands at breakpoints)
--------------------------------------------------------------*/
.grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: 1fr;
}

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

/*--------------------------------------------------------------
# Utility Classes
--------------------------------------------------------------*/
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-dark { color: var(--text-dark); }
.text-light { color: var(--text-light); }
.text-muted { color: var(--text-muted); }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-light { background-color: var(--bg-light); }

.mb-0 { margin-bottom: 0; }
.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-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.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-5 { margin-top: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

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

.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/*--------------------------------------------------------------
# Animation Classes
--------------------------------------------------------------*/
.animate-fade-in {
  opacity: 0;
  animation: fadeIn 0.8s ease forwards;
}

.animate-fade-in.delay-100 { animation-delay: 0.1s; }
.animate-fade-in.delay-200 { animation-delay: 0.2s; }
.animate-fade-in.delay-300 { animation-delay: 0.3s; }
.animate-fade-in.delay-400 { animation-delay: 0.4s; }
.animate-fade-in.delay-500 { animation-delay: 0.5s; }

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

/*--------------------------------------------------------------
# Footer Styles
--------------------------------------------------------------*/
.site-footer {
  background-color: var(--text-dark);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: white;
  font-size: 1.15rem;
  margin-bottom: var(--spacing-md);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
}

.social-icons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  border-radius: var(--radius-round);
  transition: all var(--transition-fast);
}

.social-icons a:hover {
  background-color: var(--secondary-color);
  transform: translateY(-3px);
}

/*--------------------------------------------------------------
# Responsive Design — scale up from mobile-first base
--------------------------------------------------------------*/
@media (min-width: 480px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 576px) {
  .btn {
    width: auto;
  }
}

@media (min-width: 768px) {
  :root {
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.875rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .header-container {
    flex-direction: row;
    min-height: 70px;
  }

  .site-logo img {
    max-height: 50px;
  }

  .nav-menu {
    justify-content: flex-start;
    gap: var(--spacing-lg);
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

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

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

/*--------------------------------------------------------------
# Print Styles
--------------------------------------------------------------*/
@media print {
  .site-header,
  .site-footer,
  .mobile-menu-toggle,
  .menu-overlay,
  #back-to-top,
  .skip-link,
  .btn,
  .social-icons,
  .newsletter-section,
  .footer-newsletter-form {
    display: none !important;
  }

  body {
    background: white;
    color: black;
    font-size: 12pt;
  }

  a {
    color: black;
    text-decoration: underline;
  }

  a[href]:after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: #555;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  .card,
  .product-card,
  .category-card {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
    break-inside: avoid;
  }

  h1, h2, h3 {
    break-after: avoid;
  }

  img {
    max-width: 100% !important;
  }
}