/* ==========================================================================
   HWI Pellets / Hardwoodindustry Layout & Grid System
   12-Column Responsive Grid, Containers, Section Patterns & Breakpoints
   ========================================================================== */

/* Universal Box Sizing & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

img, svg, picture, video {
  max-width: 100%;
  display: block;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-32);
  padding-right: var(--space-32);
}

.container-fluid {
  width: 100%;
  padding-left: var(--space-32);
  padding-right: var(--space-32);
}

/* Sections */
.section {
  padding-top: var(--space-80);
  padding-bottom: var(--space-80);
  position: relative;
}

.section-sm {
  padding-top: var(--space-48);
  padding-bottom: var(--space-48);
}

.section-dark {
  background-color: var(--color-forest-green);
  color: var(--color-white);
}

.section-canvas {
  background-color: var(--color-canvas-base);
  color: var(--color-text-dark);
}

.section-soft {
  background-color: var(--color-off-white-soft);
  color: var(--color-text-dark);
}

.section-header {
  margin-bottom: var(--space-48);
}
.section-header.text-center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.section-tag {
  margin-bottom: var(--space-12);
}
.section-title {
  margin-bottom: var(--space-16);
}
.section-desc {
  font-size: 18px;
  line-height: 28px;
  color: var(--color-text-secondary);
}
.section-dark .section-desc {
  color: var(--color-text-on-dark-secondary);
}

/* 12-Column Flexible Grid */
.grid {
  display: grid;
  gap: var(--space-24);
}

.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid-cols-4  { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-3  { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-2  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-1  { grid-template-columns: 1fr; }

/* Grid Spans */
.col-span-12 { grid-column: span 12 / span 12; }
.col-span-8  { grid-column: span 8 / span 8; }
.col-span-7  { grid-column: span 7 / span 7; }
.col-span-6  { grid-column: span 6 / span 6; }
.col-span-5  { grid-column: span 5 / span 5; }
.col-span-4  { grid-column: span 4 / span 4; }
.col-span-3  { grid-column: span 3 / span 3; }
.col-span-2  { grid-column: span 2 / span 2; }

/* Flex Helpers */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.flex-grow { flex-grow: 1; }

.gap-4  { gap: var(--space-4); }
.gap-8  { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }
.gap-16 { gap: var(--space-16); }
.gap-20 { gap: var(--space-20); }
.gap-24 { gap: var(--space-24); }
.gap-32 { gap: var(--space-32); }
.gap-40 { gap: var(--space-40); }

/* Spacing Helpers */
.mt-4  { margin-top: var(--space-4); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mt-20 { margin-top: var(--space-20); }
.mt-24 { margin-top: var(--space-24); }
.mt-32 { margin-top: var(--space-32); }
.mt-40 { margin-top: var(--space-40); }
.mt-48 { margin-top: var(--space-48); }

.mb-4  { margin-bottom: var(--space-4); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }
.mb-20 { margin-bottom: var(--space-20); }
.mb-24 { margin-bottom: var(--space-24); }
.mb-32 { margin-bottom: var(--space-32); }
.mb-40 { margin-bottom: var(--space-40); }

/* Security Alert Banner */
.security-banner {
  background-color: var(--color-near-black);
  color: var(--color-text-on-dark);
  font-size: 13px;
  padding: 8px var(--space-16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.security-banner a {
  color: var(--color-warm-orange);
  text-decoration: underline;
}

/* Header Component */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  text-decoration: none;
  color: var(--color-forest-green);
}
.brand-icon {
  width: 38px;
  height: 38px;
  background-color: var(--color-forest-green);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-family-headings);
  font-size: 18px;
  letter-spacing: -0.5px;
}
.brand-name-wrap {
  display: flex;
  flex-direction: column;
}
.brand-name {
  font-family: var(--font-family-headings);
  font-size: 20px;
  font-weight: 700;
  line-height: 22px;
  color: var(--color-forest-green);
  letter-spacing: -0.5px;
}
.brand-tagline {
  font-family: var(--font-family-body);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

.lang-selector {
  display: flex;
  align-items: center;
  background-color: rgba(22, 45, 33, 0.05);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 2px;
}
.lang-btn {
  background: transparent;
  border: none;
  font-family: var(--font-family-body);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--color-forest-green);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.lang-btn.active {
  background-color: var(--color-forest-green);
  color: var(--color-white);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--color-forest-green);
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background-color: var(--color-forest-green);
  color: var(--color-white);
  padding: var(--space-32) var(--space-24);
  z-index: var(--z-modal);
  transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-modal);
  display: flex;
  flex-direction: column;
}
.mobile-drawer.is-open {
  right: 0;
}
.mobile-drawer .nav-link {
  color: var(--color-white);
  font-size: 18px;
  padding: var(--space-12) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: block;
}

/* Hero Section */
.hero-section {
  padding-top: var(--space-56);
  padding-bottom: var(--space-80);
  background-color: var(--color-canvas-base);
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-banner-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}
.hero-banner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 420px;
}

.hero-spec-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-16);
  background-color: var(--color-white);
  padding: var(--space-20);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  margin-top: var(--space-32);
}
.hero-spec-item {
  display: flex;
  flex-direction: column;
  padding: 0 var(--space-12);
  border-right: 1px solid var(--color-gray-light);
}
.hero-spec-item:last-child {
  border-right: none;
}
.hero-spec-val {
  font-family: var(--font-family-headings);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-forest-green);
}
.hero-spec-lbl {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* Product Card Imagery & Specs */
.card-img-wrap {
  width: 100%;
  height: 200px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-16);
  background-color: var(--color-off-white-soft);
  position: relative;
}
.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.card:hover .card-img-wrap img {
  transform: scale(1.03);
}

.spec-list {
  list-style: none;
  margin: var(--space-16) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding-bottom: var(--space-4);
  border-bottom: 1px dashed var(--color-border-light);
}
.spec-name {
  color: var(--color-text-secondary);
}
.spec-val {
  font-weight: 600;
  color: var(--color-forest-green);
}

/* Calculator Widget */
.calc-wrapper {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.calc-header {
  background-color: var(--color-forest-green);
  color: var(--color-white);
  padding: var(--space-24) var(--space-32);
}
.calc-body {
  padding: var(--space-32);
}
.calc-summary-box {
  background-color: var(--color-off-white-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: var(--space-24);
}
.calc-total-price {
  font-family: var(--font-family-headings);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-action-orange);
  line-height: 1.1;
}

/* Tab Navigation */
.tab-nav {
  display: flex;
  gap: var(--space-8);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-24);
}
.tab-btn {
  background: transparent;
  border: none;
  font-family: var(--font-family-headings);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: var(--space-8) var(--space-16);
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}
.tab-btn:hover {
  color: var(--color-forest-green);
}
.tab-btn.active {
  color: var(--color-forest-green);
  border-bottom: 2px solid var(--color-action-orange);
  margin-bottom: -1px;
}

/* Table Design */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-family-body);
  font-size: 14px;
}
.data-table th {
  background-color: var(--color-off-white-soft);
  color: var(--color-forest-green);
  font-weight: 600;
  text-align: left;
  padding: var(--space-12) var(--space-16);
  border-bottom: 2px solid var(--color-border-light);
}
.data-table td {
  padding: var(--space-12) var(--space-16);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-forest-green);
}
.data-table tr:hover td {
  background-color: var(--color-off-white-soft);
}

/* Footer */
.site-footer {
  background-color: var(--color-forest-green);
  color: var(--color-white);
  padding-top: var(--space-56);
  padding-bottom: var(--space-32);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-title {
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: var(--space-16);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.footer-links a {
  color: var(--color-text-on-dark-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--color-warm-orange);
}
.footer-bottom {
  margin-top: var(--space-48);
  padding-top: var(--space-24);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-on-dark-tertiary);
}

/* Design System Floating Inspector Button */
.ds-inspector-toggle {
  position: fixed;
  bottom: var(--space-24);
  left: var(--space-24);
  z-index: var(--z-sticky);
  background-color: var(--color-forest-green);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.ds-inspector-toggle:hover {
  background-color: var(--color-action-orange);
  border-color: var(--color-action-orange);
  transform: translateY(-2px);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .container {
    padding-left: var(--space-24);
    padding-right: var(--space-24);
  }
  .section {
    padding-top: var(--space-56);
    padding-bottom: var(--space-56);
  }
  .grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .col-span-8, .col-span-7, .col-span-6, .col-span-5, .col-span-4, .col-span-3, .col-span-2 {
    grid-column: span 12 / span 12;
  }
  .nav-desktop,
  .nav-links-pill {
    display: none;
  }
  .mobile-nav-toggle {
    display: inline-flex;
    color: var(--color-white);
  }
  .hero-spec-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-20);
  }
  .hero-spec-item {
    border-right: none;
  }
}

@media (max-width: 768px) {
  .grid-cols-12 {
    grid-template-columns: 1fr;
  }
  .grid-cols-12 > div {
    grid-column: 1 / -1;
  }
  .security-banner .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (max-width: 640px) {
  .container {
    padding-left: var(--space-16);
    padding-right: var(--space-16);
  }
  .section {
    padding-top: var(--space-40);
    padding-bottom: var(--space-40);
  }
  .grid-cols-12, .grid-cols-4, .grid-cols-3, .grid-cols-2 {
    grid-template-columns: 1fr;
  }
  .col-span-12, .col-span-8, .col-span-7, .col-span-6, .col-span-5, .col-span-4, .col-span-3, .col-span-2 {
    grid-column: 1 / -1;
  }
  .hero-spec-strip {
    grid-template-columns: 1fr;
  }
  .calc-body {
    padding: var(--space-16);
  }
  .modal-container {
    padding: var(--space-20);
    max-width: 95vw;
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-12);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .site-header {
    top: var(--space-8);
  }
  .nav-pill-container {
    padding: 6px 10px;
  }
  .btn-lang-translate {
    padding: 5px 8px;
    gap: 4px;
    font-size: 11px;
  }
  .lang-globe-icon {
    display: none;
  }
  .hero-client-card {
    padding: var(--space-12);
  }
  .card {
    padding: var(--space-16);
  }
  .mobile-lang-grid {
    grid-template-columns: repeat(4, 1fr) !important;
  }
}