/* ==========================================================================
   AMD-SUPPORT.COM - ENTERPRISE DRIVERS & TECHNICAL SUPPORT REPOSITORY
   Scoped Namespace: .sup-*
   Theme: Enterprise Technical Light Canvas (Cool Platinum & Slate Navy)
   Distinct Architecture: Utility-first, zero marketing cards, zero shared CSS
   ========================================================================== */

:root {
  --sup-canvas: #f8fafc;
  --sup-surface: #ffffff;
  --sup-surface-alt: #f1f5f9;
  --sup-surface-hover: #e2e8f0;
  
  --sup-border: #e2e8f0;
  --sup-border-strong: #cbd5e1;
  --sup-border-focus: #ed1c24;

  --sup-text-title: #0f172a;
  --sup-text-body: #334155;
  --sup-text-muted: #64748b;
  --sup-text-light: #94a3b8;

  --sup-red: #ed1c24;
  --sup-red-hover: #c91118;
  --sup-red-subtle: #fef2f2;
  --sup-red-border: #fecaca;

  --sup-green: #16a34a;
  --sup-green-subtle: #f0fdf4;
  --sup-green-border: #bbf7d0;

  --sup-blue: #2563eb;
  --sup-blue-subtle: #eff6ff;
  --sup-blue-border: #bfdbfe;

  --sup-slate-dark: #1e293b;

  --sup-font: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --sup-font-mono: 'SF Mono', Consolas, 'Fira Code', 'Liberation Mono', Menlo, monospace;

  --sup-radius-sm: 4px;
  --sup-radius-md: 6px;
  --sup-radius-lg: 10px;
  --sup-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --sup-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
}

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

html {
  font-size: 15px;
  scroll-behavior: smooth;
  background-color: var(--sup-canvas);
  color: var(--sup-text-body);
  font-family: var(--sup-font);
  line-height: 1.55;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--sup-canvas);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

/* Top System Status Strip */
.sup-status-bar {
  background-color: #0f172a;
  color: #94a3b8;
  font-size: 0.78rem;
  padding: 6px 0;
  border-bottom: 1px solid #1e293b;
}

.sup-status-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.sup-status-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sup-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #4ade80;
  font-weight: 600;
}

.sup-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #4ade80;
}

.sup-status-meta {
  color: #94a3b8;
}

.sup-status-meta strong {
  color: #f1f5f9;
}

.sup-status-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.75rem;
}

.sup-status-right a:hover {
  color: #ffffff;
}

/* Container */
.sup-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.sup-header {
  background-color: var(--sup-surface);
  border-bottom: 1px solid var(--sup-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--sup-shadow-sm);
}

.sup-nav-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}

.sup-brand-link {
  display: flex;
  align-items: center;
}

.sup-brand-logo {
  height: 45px;
  width: auto;
}

.sup-nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 10px;
}

.sup-nav-menu li a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--sup-text-muted);
  padding: 6px 0;
  position: relative;
}

.sup-nav-menu li a:hover,
.sup-nav-menu li a.active {
  color: var(--sup-red);
}

.sup-nav-menu li a.active::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--sup-red);
}

.sup-header-search {
  display: flex;
  align-items: center;
  background-color: var(--sup-surface-alt);
  border: 1px solid var(--sup-border-strong);
  border-radius: var(--sup-radius-md);
  padding: 6px 12px;
  gap: 8px;
  width: 260px;
}

.sup-header-search input {
  border: none;
  background: transparent;
  outline: none;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--sup-text-title);
  width: 100%;
}

.sup-header-search input::placeholder {
  color: var(--sup-text-light);
}

/* Breadcrumbs Bar */
.sup-breadcrumbs {
  background-color: var(--sup-surface);
  border-bottom: 1px solid var(--sup-border);
  padding: 10px 0;
  font-size: 0.82rem;
  color: var(--sup-text-muted);
}

.sup-breadcrumbs ol {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sup-breadcrumbs li::after {
  content: '/';
  margin-left: 8px;
  color: var(--sup-text-light);
}

.sup-breadcrumbs li:last-child::after {
  content: '';
}

.sup-breadcrumbs a:hover {
  color: var(--sup-red);
}

.sup-breadcrumbs li.current {
  color: var(--sup-text-title);
  font-weight: 600;
}

/* Main Layout */
.sup-main-content {
  padding: 32px 0 60px 0;
}

/* Hero Banner Utility */
.sup-utility-banner {
  background-color: var(--sup-surface);
  border: 1px solid var(--sup-border);
  border-radius: var(--sup-radius-lg);
  padding: 30px;
  box-shadow: var(--sup-shadow-sm);
  margin-bottom: 28px;
}

.sup-banner-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.sup-banner-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--sup-text-title);
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.sup-banner-subtitle {
  font-size: 0.95rem;
  color: var(--sup-text-muted);
  max-width: 720px;
}

/* Interactive Hardware Selector Wizard */
.sup-wizard-card {
  background-color: var(--sup-surface-alt);
  border: 1px solid var(--sup-border);
  border-radius: var(--sup-radius-md);
  padding: 20px;
}

.sup-wizard-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--sup-text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sup-wizard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 14px;
  align-items: end;
}

.sup-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sup-field-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sup-text-title);
}

.sup-select {
  background-color: var(--sup-surface);
  border: 1px solid var(--sup-border-strong);
  border-radius: var(--sup-radius-sm);
  padding: 9px 12px;
  font-size: 0.88rem;
  font-family: inherit;
  color: var(--sup-text-title);
  outline: none;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.sup-select:focus {
  border-color: var(--sup-red);
}

.sup-btn-filter {
  background-color: var(--sup-red);
  color: #ffffff;
  border: none;
  border-radius: var(--sup-radius-sm);
  padding: 10px 20px;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background-color 0.15s ease;
  height: 38px;
  white-space: nowrap;
}

.sup-btn-filter:hover {
  background-color: var(--sup-red-hover);
}

/* Two Column Layout */
.sup-content-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: start;
}

/* Sidebar Navigation */
.sup-sidebar {
  background-color: var(--sup-surface);
  border: 1px solid var(--sup-border);
  border-radius: var(--sup-radius-lg);
  padding: 20px;
  box-shadow: var(--sup-shadow-sm);
  position: sticky;
  top: 84px;
}

.sup-sidebar-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--sup-text-muted);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--sup-border);
}

.sup-sidebar-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sup-sidebar-menu li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--sup-radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--sup-text-body);
  transition: all 0.15s ease;
}

.sup-sidebar-menu li a:hover {
  background-color: var(--sup-surface-alt);
  color: var(--sup-red);
}

.sup-sidebar-menu li a.active {
  background-color: var(--sup-red-subtle);
  color: var(--sup-red);
  font-weight: 700;
}

.sup-badge-count {
  font-size: 0.72rem;
  background-color: var(--sup-surface-alt);
  color: var(--sup-text-muted);
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 600;
}

.sup-sidebar-menu li a.active .sup-badge-count {
  background-color: var(--sup-red);
  color: #ffffff;
}

/* Main Panel: Catalog Section */
.sup-panel {
  background-color: var(--sup-surface);
  border: 1px solid var(--sup-border);
  border-radius: var(--sup-radius-lg);
  padding: 24px;
  box-shadow: var(--sup-shadow-sm);
  margin-bottom: 28px;
}

.sup-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--sup-border);
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.sup-panel-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--sup-text-title);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sup-panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sup-filter-pill {
  border: 1px solid var(--sup-border-strong);
  background-color: var(--sup-surface);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--sup-text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.sup-filter-pill:hover,
.sup-filter-pill.active {
  background-color: var(--sup-red-subtle);
  border-color: var(--sup-red);
  color: var(--sup-red);
}

/* Driver Package Table */
.sup-package-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.sup-package-table th {
  background-color: var(--sup-surface-alt);
  color: var(--sup-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--sup-border);
  text-align: left;
}

.sup-package-table td {
  padding: 14px;
  border-bottom: 1px solid var(--sup-border);
  vertical-align: middle;
  color: var(--sup-text-body);
}

.sup-package-table tr:hover td {
  background-color: #f8fafc;
}

.sup-pkg-name {
  font-weight: 700;
  color: var(--sup-text-title);
  font-size: 0.92rem;
  margin-bottom: 2px;
}

.sup-pkg-desc {
  font-size: 0.8rem;
  color: var(--sup-text-muted);
}

.sup-pkg-ver {
  font-family: var(--sup-font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--sup-text-title);
}

/* Badges */
.sup-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--sup-radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.sup-badge-whql {
  background-color: var(--sup-green-subtle);
  color: var(--sup-green);
  border: 1px solid var(--sup-green-border);
}

.sup-badge-stable {
  background-color: var(--sup-blue-subtle);
  color: var(--sup-blue);
  border: 1px solid var(--sup-blue-border);
}

.sup-btn-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--sup-red);
  color: #ffffff;
  border-radius: var(--sup-radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
  transition: background-color 0.15s ease;
  cursor: pointer;
  border: none;
}

.sup-btn-action:hover {
  background-color: var(--sup-red-hover);
}

.sup-btn-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background-color: transparent;
  color: var(--sup-text-muted);
  border: 1px solid var(--sup-border-strong);
  border-radius: var(--sup-radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  margin-left: 6px;
}

.sup-btn-link:hover {
  color: var(--sup-text-title);
  border-color: var(--sup-text-title);
}

.sup-hash-toggle {
  font-family: var(--sup-font-mono);
  font-size: 0.75rem;
  color: var(--sup-text-muted);
  cursor: pointer;
  text-decoration: underline;
}

.sup-hash-toggle:hover {
  color: var(--sup-red);
}

.sup-hash-view {
  background-color: #0f172a;
  color: #38bdf8;
  font-family: var(--sup-font-mono);
  font-size: 0.75rem;
  padding: 8px 10px;
  border-radius: var(--sup-radius-sm);
  word-break: break-all;
  margin-top: 6px;
  user-select: all;
}

/* Checksum Validator Tool */
.sup-validator-box {
  background-color: var(--sup-surface-alt);
  border: 1px solid var(--sup-border);
  border-radius: var(--sup-radius-md);
  padding: 20px;
  margin-top: 16px;
}

.sup-validator-input-group {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.sup-validator-input {
  flex: 1;
  background-color: var(--sup-surface);
  border: 1px solid var(--sup-border-strong);
  border-radius: var(--sup-radius-sm);
  padding: 8px 12px;
  font-family: var(--sup-font-mono);
  font-size: 0.82rem;
  color: var(--sup-text-title);
  outline: none;
}

.sup-validator-input:focus {
  border-color: var(--sup-red);
}

.sup-validator-btn {
  background-color: var(--sup-slate-dark);
  color: #ffffff;
  border: none;
  border-radius: var(--sup-radius-sm);
  padding: 8px 16px;
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
}

.sup-validator-result {
  margin-top: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  display: none;
}

/* Technical Compatibility Matrix */
.sup-matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.sup-matrix-table th {
  background-color: var(--sup-surface-alt);
  padding: 10px 12px;
  border: 1px solid var(--sup-border);
  text-align: left;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--sup-text-muted);
}

.sup-matrix-table td {
  padding: 10px 12px;
  border: 1px solid var(--sup-border);
  color: var(--sup-text-body);
}

/* Knowledge Base Card List */
.sup-article-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sup-article-item {
  border: 1px solid var(--sup-border);
  border-radius: var(--sup-radius-md);
  padding: 18px;
  background-color: var(--sup-surface);
  transition: border-color 0.15s ease;
}

.sup-article-item:hover {
  border-color: var(--sup-border-strong);
}

.sup-article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--sup-red);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 6px;
}

.sup-article-meta span.date {
  color: var(--sup-text-light);
  font-weight: 500;
  text-transform: none;
}

.sup-article-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--sup-text-title);
  margin-bottom: 8px;
}

.sup-article-excerpt {
  font-size: 0.88rem;
  color: var(--sup-text-body);
  line-height: 1.5;
  margin-bottom: 12px;
}

.sup-code-snippet {
  background-color: #0f172a;
  color: #f1f5f9;
  border-radius: var(--sup-radius-sm);
  padding: 10px 14px;
  font-family: var(--sup-font-mono);
  font-size: 0.8rem;
  margin: 10px 0;
  overflow-x: auto;
}

/* Footer */
.sup-footer {
  background-color: #0f172a;
  color: #94a3b8;
  border-top: 3px solid var(--sup-red);
  padding: 40px 0 24px 0;
  margin-top: auto;
  font-size: 0.82rem;
}

.sup-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}

.sup-footer-brand h4 {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.sup-footer-brand p {
  color: #94a3b8;
  line-height: 1.6;
}

.sup-footer-col h5 {
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 12px;
}

.sup-footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sup-footer-col ul li a:hover {
  color: #ffffff;
}

.sup-footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: #64748b;
  font-size: 0.78rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .sup-content-grid {
    grid-template-columns: 1fr;
  }
  .sup-sidebar {
    position: static;
  }
  .sup-wizard-grid {
    grid-template-columns: 1fr 1fr;
  }
  .sup-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .sup-nav-menu, .sup-header-search {
    display: none;
  }
  .sup-wizard-grid {
    grid-template-columns: 1fr;
  }
  .sup-footer-grid {
    grid-template-columns: 1fr;
  }
  .sup-status-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}