/* ==========================================================================
   AppMail-Inspired Color Palette (Adapted for Provenance Registry)
   ========================================================================== */

:root {
  /* Primary Brand (Teal) */
  --primary: #0f6e82;
  --primary-hover: #1fa2b8;
  --primary-light: #178ca3;

  /* Verification States */
  --verification-success: #10b981;
  --verification-pending: #f59e0b;
  --verification-failed: #ef4444;

  /* Backgrounds */
  --gradient-start: #e6f6f9;
  --gradient-end: #cfecef;
  --surface: #ffffff;
  --surface-alt: #f0fafb;

  /* Provenance-specific */
  --digest-bg: rgba(15, 110, 130, 0.04);
  --signature-bg: rgba(15, 110, 130, 0.06);

  /* Text */
  --text-primary: #0f172a;
  --text-secondary: #4b5563;
  --text-muted: #64748b;

  /* Shadows (teal-tinted) */
  --shadow: rgba(15, 110, 130, 0.08);
  --shadow-hover: rgba(15, 110, 130, 0.15);

  /* Borders */
  --border: #e5e7eb;
  --border-hover: #0f6e82;
}

/* ==========================================================================
   Reset
   ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Base
   ========================================================================== */

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
}

h1 { font-size: 28px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

code {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  font-size: 13px;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.page-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem 2rem 1rem 2rem;
}

.document-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .document-container {
    max-width: 100%;
    padding: 0 1.5rem;
  }
}

@media (max-width: 600px) {
  .document-container {
    padding: 0 1rem;
  }
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  background: var(--surface);
  border-radius: 12px;
  box-shadow: 0 4px 20px var(--shadow);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: linear-gradient(135deg,
    var(--primary-hover) 0%,
    var(--primary-light) 50%,
    var(--primary) 100%
  );
  padding: 24px 40px;
  text-decoration: none;
  color: white;
  transition: opacity 0.2s ease;
}

.card-header:hover {
  opacity: 0.95;
  color: white;
}

.header-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  flex-shrink: 0;
}

.header-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.header-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
}

.header-subtitle {
  font-size: 14px;
  opacity: 0.85;
  font-weight: 500;
  line-height: 1.3;
  margin-top: 2px;
}

.card-body {
  padding: 40px;
}

/* ==========================================================================
   Section Labels
   ========================================================================== */

.section-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.section-icon {
  color: var(--primary);
}

.section-description {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.section {
  margin-bottom: 40px;
}

.section-divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

/* ==========================================================================
   Home Page
   ========================================================================== */

.search-section {
  margin-bottom: 24px;
}

.search-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.search-results {
  margin-top: 12px;
}

.search-result {
  display: block;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  transition: all 0.2s ease;
}

.search-result:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 8px var(--shadow);
}

.result-name {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.result-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.result-digest {
  font-size: 11px;
  color: var(--text-secondary);
}

.no-results {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 14px;
}

.home-divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

.channel-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.channel-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  transition: all 0.2s ease;
}

.channel-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--shadow);
  transform: translateY(-2px);
}

.channel-card-icon {
  width: 48px;
  height: 48px;
  background: var(--surface-alt);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 12px;
}

.channel-card h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.channel-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  flex-grow: 1;
}

.channel-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

.registry-description {
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Digest Cards
   ========================================================================== */

.digest-list {
  margin-bottom: 24px;
}

.digest-card {
  margin-bottom: 12px;
}

.digest-card label.digest-algorithm {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 8px;
}

.badge,
.digest-badge-canonical {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  background: var(--primary);
  color: white;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   Signature Panels
   ========================================================================== */

.signature-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 12px;
  background: var(--signature-bg);
}

.signature-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s ease;
}

.signature-toggle:hover {
  background: rgba(15, 110, 130, 0.1);
}

.signature-panel[open] .signature-toggle {
  border-bottom: 1px solid var(--border);
}

.signature-toggle .left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.signature-toggle .right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.signer {
  font-weight: 600;
  color: var(--text-primary);
}

.algorithm {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.signature-content {
  padding: 16px;
}

.signature-content .field {
  margin-bottom: 16px;
}

.signature-content .label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 6px;
}

.signature-content .value {
  font-size: 14px;
  color: var(--text-primary);
}

.key-locations {
  list-style: none;
  margin-top: 8px;
}

.key-locations li {
  margin-bottom: 6px;
}

.key-locations a {
  font-size: 13px;
  word-break: break-all;
}

/* ==========================================================================
   Attestation Cards
   ========================================================================== */

.attestation-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.attestation-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  background: var(--surface-alt);
}

.attestation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.attestation-header strong {
  font-size: 14px;
  color: var(--text-primary);
}

.attestation-type {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  background: var(--primary);
  color: white;
  border-radius: 4px;
  text-transform: uppercase;
}

.attestation-statement {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.attestation-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   Provenance Grid
   ========================================================================== */

.provenance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.provenance-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.provenance-card-wide {
  grid-column: span 2;
}

.provenance-card label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 12px;
}

.provenance-card p {
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.provenance-card strong {
  font-weight: 600;
}

.provenance-card a {
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   Verification Section
   ========================================================================== */

.verification-status {
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.verification-status.status-verified {
  border-color: var(--verification-success);
  background: rgba(16, 185, 129, 0.04);
}

.verification-status.status-unverified {
  border-color: var(--verification-pending);
  background: rgba(245, 158, 11, 0.04);
}

.status-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.status-header span {
  font-size: 16px;
  font-weight: 600;
}

.icon-success {
  color: var(--verification-success);
}

.icon-pending {
  color: var(--verification-pending);
}

.status-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.status-details .row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.status-details .row span:first-child {
  color: var(--text-secondary);
}

.status-details .row span.verified {
  color: var(--verification-success);
  font-weight: 600;
}

.log-link,
.verification-log-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
}

.info-panel {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.icon-info {
  flex-shrink: 0;
  color: var(--primary);
}

/* ==========================================================================
   Code Blocks
   ========================================================================== */

.code-block {
  position: relative;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 24px;
}

.code-block pre {
  margin: 0;
  overflow-x: auto;
}

.code-block code {
  color: var(--text-primary);
  font-size: 14px;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  transition: all 0.2s ease;
}

.code-block:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.copy-btn.copied {
  color: var(--verification-success);
  border-color: var(--verification-success);
}

/* ==========================================================================
   Syntax Highlighting (Prism.js Overrides)
   ========================================================================== */

/* Override Prism's default background to match our design */
.code-block pre[class*="language-"],
.code-block code[class*="language-"] {
  background: transparent;
  color: var(--text-primary);
  text-shadow: none;
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  line-height: 1.6;
  tab-size: 4;
}

/* Prism token colors adapted to site theme */
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: #64748b; /* text-muted */
}

.token.punctuation {
  color: #475569;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: #dc2626; /* red-600 */
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #059669; /* emerald-600 */
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
  color: #0f6e82; /* primary */
}

.token.atrule,
.token.attr-value,
.token.keyword {
  color: #7c3aed; /* violet-600 */
}

.token.function,
.token.class-name {
  color: #0891b2; /* cyan-600 */
}

.token.regex,
.token.important,
.token.variable {
  color: #ea580c; /* orange-600 */
}

/* HCL/Terraform-specific tokens */
.token.terraform-keyword {
  color: #7c3aed;
  font-weight: 600;
}

/* Bash-specific tokens */
.token.bash-builtin {
  color: #0891b2;
  font-weight: 600;
}

/* Line highlighting (if enabled) */
.code-block pre[class*="language-"].line-numbers {
  padding-left: 3.8em;
}

.code-block .line-numbers-rows {
  border-right: 1px solid var(--border);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

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

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

.btn-secondary {
  background: var(--surface-alt);
  color: var(--primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--surface);
}

/* ==========================================================================
   Artifact Page
   ========================================================================== */

.artifact-title {
  margin-bottom: 16px;
}

.artifact-type-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 4px 8px;
  background: var(--primary);
  color: white;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.artifact-title h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
  display: flex;
  align-items: center;
  gap: 10px;
}

.artifact-title h1 .artifact-icon {
  flex-shrink: 0;
  color: var(--primary);
}

.artifact-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.artifact-breadcrumb .separator {
  color: var(--text-muted);
}

.artifact-breadcrumb .current {
  color: var(--text-secondary);
}

.artifact-meta {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.meta-label {
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 6px;
}

/* Type-Specific Sections */
.section-highlight {
  background: var(--surface-alt);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.metadata-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.metadata-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metadata-item label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.metadata-item code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--primary);
  background: rgba(15, 110, 130, 0.08);
  padding: 4px 8px;
  border-radius: 4px;
}

.badge-success {
  background: var(--verification-success);
  color: white;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  display: inline-block;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.table thead {
  background: var(--surface-alt);
}

.table th {
  text-align: left;
  padding: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border);
}

.table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.table td code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--primary);
  background: rgba(15, 110, 130, 0.06);
  padding: 2px 6px;
  border-radius: 3px;
  word-break: break-all;
}

.btn-secondary {
  display: inline-block;
  padding: 10px 20px;
  background: var(--surface-alt);
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  margin-top: 12px;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 600px) {
  .page-wrapper {
    padding: 1rem;
  }

  .card-body {
    padding: 24px;
  }

  .card-footer {
    flex-direction: column;
    gap: 12px;
    padding: 20px 24px;
  }

  .channel-cards {
    grid-template-columns: 1fr;
  }

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

  .attestation-cards {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Unified Releases Page Styles (GitHub Releases-inspired)
   ========================================================================== */

/* Page Header (in content area) */
.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(15, 110, 130, 0.15);
}

.page-header h1 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px 0;
}

.page-description {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Timeline Layout */
.releases-timeline {
  position: relative;
  padding-left: 40px;
  margin-top: 32px;
}

.release-item {
  position: relative;
  display: flex;
  margin-bottom: 24px;
}

.timeline-marker {
  position: absolute;
  left: -40px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 2px var(--primary);
  z-index: 2;
}

.timeline-marker::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 120px;
  background: rgba(15, 110, 130, 0.2);
  z-index: 1;
}

/* Last item on page should not show connecting line */
.release-item:last-child .timeline-marker::before {
  display: none;
}

.release-card {
  flex: 1;
  background: white;
  border: 1px solid rgba(15, 110, 130, 0.15);
  border-radius: 8px;
  padding: 16px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  display: block;
  text-decoration: none;
  color: inherit;
}

.release-card:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(15, 110, 130, 0.1);
  transform: translateY(-1px);
}

.release-card h3 {
  color: var(--primary);
  margin: 0 0 12px 0;
  font-size: 16px;
  font-weight: 600;
}

.release-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.channel-badge {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(15, 110, 130, 0.1);
  color: var(--primary);
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
}

.release-header .version {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.release-header time {
  font-size: 14px;
  color: var(--text-muted);
  margin-left: auto;
}

.release-card h3 {
  margin: 8px 0;
  font-size: 16px;
}

.release-card h3 a {
  color: var(--text-primary);
  text-decoration: none;
}

.release-card h3 a:hover {
  color: var(--primary);
}

.artifact-meta {
  display: flex;
  gap: 16px;
  margin: 8px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.artifact-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.release-card .digest {
  display: block;
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  padding: 6px 10px;
  background: rgba(15, 110, 130, 0.04);
  border-radius: 4px;
  overflow-x: auto;
}

/* Filter Chips */
.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.chip {
  padding: 8px 16px;
  background: rgba(15, 110, 130, 0.08);
  border: 1px solid rgba(15, 110, 130, 0.2);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-primary);
}

.chip:hover {
  background: rgba(15, 110, 130, 0.12);
  border-color: var(--primary);
}

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

/* Home Page Channel Cards */
.home-channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.home-channel-card {
  background: white;
  border: 1px solid rgba(15, 110, 130, 0.15);
  border-radius: 8px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  display: block;
}

.home-channel-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(15, 110, 130, 0.1);
  transform: translateY(-2px);
}

.home-channel-header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.home-channel-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
  padding: 6px;
  background: rgba(15, 110, 130, 0.06);
  border-radius: 6px;
}

.home-channel-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px 0;
}

.home-channel-info p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin: 0;
}

.view-all-link {
  display: block;
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

.view-all-link:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* Artifact Feed (Home Page) */
.artifact-feed {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.artifact-card {
  background: white;
  border: 1px solid rgba(15, 110, 130, 0.15);
  border-radius: 8px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  display: block;
}

.artifact-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(15, 110, 130, 0.1);
  transform: translateY(-2px);
}

.card-header-mini {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 13px;
}

.card-header-mini time {
  color: var(--text-muted);
}

.artifact-card h3 {
  font-size: 15px;
  margin: 8px 0;
  color: var(--primary);
  line-height: 1.4;
}

.artifact-card .meta {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
}

/* Pagination */
.pagination {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(15, 110, 130, 0.15);
}

.pagination-info {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 16px;
}

.pagination-controls {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 8px;
}

.pagination-controls .pagination-left {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.pagination-controls .pagination-center {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.pagination-controls .pagination-right {
  display: flex;
  gap: 8px;
  justify-content: flex-start;
}

.pagination-link,
.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  background: white;
  border: 1px solid rgba(15, 110, 130, 0.2);
  border-radius: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.pagination-link:hover,
.pagination-btn:hover {
  background: rgba(15, 110, 130, 0.08);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.pagination-link.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  cursor: default;
  pointer-events: none;
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-size: 14px;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px var(--shadow);
}

.btn-large {
  padding: 14px 28px;
  font-size: 16px;
  margin-top: 16px;
  display: block;
  text-align: center;
}

.btn-secondary {
  background: rgba(15, 110, 130, 0.1);
  color: var(--primary);
  border: 1px solid rgba(15, 110, 130, 0.2);
}

.btn-secondary:hover {
  background: rgba(15, 110, 130, 0.15);
  border-color: var(--primary);
}

/* Page Header */
.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ==========================================================================
   Channels Page Styles
   ========================================================================== */

.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.channel-detail-card {
  background: white;
  border: 1px solid rgba(15, 110, 130, 0.15);
  border-radius: 8px;
  padding: 24px;
  transition: all 0.2s;
}

.channel-detail-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(15, 110, 130, 0.1);
  transform: translateY(-2px);
}

.channel-detail-header {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.channel-detail-icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
  flex-shrink: 0;
  padding: 8px;
  background: rgba(15, 110, 130, 0.06);
  border-radius: 8px;
}

.channel-detail-title h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.channel-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.channel-detail-meta {
  display: flex;
  gap: 24px;
  padding: 16px 0;
  border-top: 1px solid rgba(15, 110, 130, 0.1);
  border-bottom: 1px solid rgba(15, 110, 130, 0.1);
  margin-bottom: 20px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.meta-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.channel-detail-actions {
  display: flex;
  gap: 12px;
}

.channel-detail-actions .btn {
  flex: 1;
  text-align: center;
}

/* ==========================================================================
   Release Grouping Styles (GitHub-style)
   ========================================================================== */

/* Release Group Container */
.release-group {
  position: relative;
  display: flex;
  margin-bottom: 48px; /* More space between releases */
}

/* Release Card (expanded from artifact card) */
.release-group .release-card {
  flex: 1;
  background: white;
  border: 1px solid rgba(15, 110, 130, 0.15);
  border-radius: 8px;
  padding: 24px; /* More padding for release */
  transition: border-color 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}

/* Release Header */
.release-group .release-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(15, 110, 130, 0.1);
}

.release-group .release-header h2 {
  margin: 0;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.release-group .release-header .version {
  font-weight: 600;
  color: var(--primary);
}

.release-group .release-header .version-link {
  text-decoration: none;
  color: inherit;
  transition: opacity 0.2s ease;
}

.release-group .release-header .version-link:hover {
  opacity: 0.8;
}

.release-group .release-header .version-link:hover .version {
  text-decoration: underline;
}

.release-group .release-header time {
  font-size: 14px;
  color: #666;
  margin-left: 0;
}

/* Release Description */
.release-description {
  font-size: 15px;
  color: #333;
  margin: 16px 0;
  line-height: 1.6;
}

/* Artifacts List */
.artifacts-list {
  margin: 24px 0;
}

.artifacts-list h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #333;
}

/* Artifact Item (Nested within Release) */
.artifact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(15, 110, 130, 0.02);
  border: 1px solid rgba(15, 110, 130, 0.1);
  border-radius: 6px;
  padding: 12px;
  margin-bottom: 8px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}

.artifact-item:hover {
  background: rgba(15, 110, 130, 0.05);
  border-color: var(--primary);
  transform: translateX(4px);
}

.artifact-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.artifact-info {
  flex: 1;
  min-width: 0; /* Allow text truncation */
}

.artifact-name {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 4px;
  color: var(--primary);
}

.artifact-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: #666;
  margin-bottom: 4px;
}

.artifact-meta span {
  display: inline-block;
}

.artifact-item .digest {
  font-size: 11px;
  color: #999;
  font-family: 'Monaco', 'Courier New', monospace;
  display: block;
}

/* Responsive Adjustments */
@media (max-width: 600px) {
  .releases-timeline {
    padding-left: 30px;
  }

  .timeline-marker {
    left: -30px;
  }

  .filter-chips {
    gap: 6px;
  }

  .chip {
    font-size: 13px;
    padding: 6px 12px;
  }

  .home-channels-grid {
    grid-template-columns: 1fr;
  }

  .artifact-feed {
    grid-template-columns: 1fr;
  }

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

  .release-header {
    font-size: 13px;
  }

  .release-header time {
    margin-left: 0;
    width: 100%;
  }

  .release-group .release-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .release-group .release-header h2 {
    font-size: 18px;
  }

  .artifact-meta {
    flex-wrap: wrap;
  }

  .artifact-item {
    padding: 10px;
  }
}