/**
 * Minimal Theme - Canonical Skills Directory Stylesheet
 * Phase S2 Curriculum Directory Redesign
 *
 * Scoped specifically to /skills/ (skills-directory.php)
 * Clean, technical, calm, developer-friendly architecture.
 */

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

.screen-reader-text,
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==========================================================================
   Base Layout & Container
   ========================================================================== */

.scp-skills-directory-main {
  /* Inherits margin-top: var(--header-height, 64px) from header-footer.css */
  background-color: #F8FAFC;
  min-height: calc(100vh - 64px);
  width: 100%;
  max-width: 100%;
  padding: 0;
  box-sizing: border-box;
}

.scp-directory-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

/* ==========================================================================
   Compact Directory Intro (Deep Navy #0A192F)
   ========================================================================== */

.scp-directory-intro {
  background-color: #0A192F;
  color: #FFFFFF;
  border-bottom: 1px solid #1E293B;
}

.scp-breadcrumbs {
  font-size: 13px;
  line-height: 1.4;
}

.scp-breadcrumb-link {
  color: #94A3B8;
  text-decoration: none;
  transition: color 150ms ease;
}

.scp-breadcrumb-link:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.scp-breadcrumb-sep {
  margin: 0 8px;
  color: #64748B;
}

.scp-breadcrumb-current {
  color: #E2E8F0;
  font-weight: 500;
}

.scp-intro-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  color: #FFFFFF;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.scp-intro-copy {
  font-size: 15.5px;
  line-height: 1.55;
  color: #94A3B8;
  margin: 0 0 16px;
  max-width: 640px;
}

.scp-intro-summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.scp-summary-count {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  font-size: 12.5px;
  font-weight: 500;
  color: #CBD5E1;
  letter-spacing: 0.01em;
}

/* ==========================================================================
   Search + Sector Controls Bar (Normal Flow - Not Sticky)
   ========================================================================== */

.scp-directory-controls {
  background-color: #FFFFFF;
  border-bottom: 1px solid #E2E8F0;
  padding: 18px 0;
}

.scp-controls-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.scp-search-field {
  position: relative;
  max-width: 480px;
  width: 100%;
}

.scp-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #64748B;
  pointer-events: none;
}

.scp-search-input {
  width: 100%;
  height: 42px;
  padding: 0 38px 0 42px;
  border: 1px solid #CBD5E1;
  border-radius: 6px;
  font-size: 14px;
  color: #0F172A;
  background: #F8FAFC;
  box-sizing: border-box;
  transition: border-color 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
}

.scp-search-input::placeholder {
  color: #94A3B8;
}

.scp-search-input:focus {
  outline: none;
  border-color: #2563EB;
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.scp-search-clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border: none;
  background: #E2E8F0;
  border-radius: 50%;
  color: #475569;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background-color 150ms ease, color 150ms ease;
}

.scp-search-clear:hover {
  background: #CBD5E1;
  color: #0F172A;
}

.scp-sector-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.scp-sector-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  background: #F1F5F9;
  color: #475569;
  border: 1px solid #E2E8F0;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
  user-select: none;
  max-width: 100%;
  box-sizing: border-box;
  word-break: break-word;
}

.scp-sector-tab:hover {
  background: #E2E8F0;
  color: #0F172A;
}

.scp-sector-tab.is-active {
  background: #0A192F;
  color: #FFFFFF;
  border-color: #0A192F;
}

.scp-sector-tab.is-active .scp-tab-count {
  color: #94A3B8;
}

.scp-tab-count {
  font-size: 12px;
  color: #64748B;
  font-weight: 400;
}

/* ==========================================================================
   Skills Directory Catalog & Grid
   ========================================================================== */

.scp-directory-catalog {
  background-color: #F8FAFC;
  padding: 36px 0 54px;
}

.scp-catalog-header {
  margin-bottom: 24px;
}

.scp-catalog-title {
  font-size: 20px;
  font-weight: 700;
  color: #0A192F;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

.scp-catalog-subtitle {
  font-size: 14px;
  color: #64748B;
  margin: 0 0 8px;
  line-height: 1.5;
}

.scp-active-status {
  font-size: 13px;
  font-weight: 500;
  color: #475569;
}

.scp-directory-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ==========================================================================
   Skill Card Component
   ========================================================================== */

.scp-directory-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 1px 3px 0 rgba(15, 23, 42, 0.04);
  box-sizing: border-box;
  min-width: 0;
  max-width: 100%;
  transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.scp-directory-card:hover {
  border-color: #CBD5E1;
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

.scp-card-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 8px;
  margin-bottom: 10px;
  min-height: 24px;
}

.scp-domain-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #475569; /* WCAG AA: 5.4:1 contrast on white */
  max-width: 100%;
  word-break: break-word;
}

.scp-cert-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11.5px;
  font-weight: 600;
  color: #059669; /* Emerald */
  background: rgba(5, 150, 105, 0.08);
  border: 1px solid rgba(5, 150, 105, 0.22);
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
  max-width: 100%;
  box-sizing: border-box;
}

.scp-cert-dot {
  font-size: 9px;
  line-height: 1;
}

.scp-card-heading {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 8px;
  word-break: break-word;
}

.scp-card-heading-link {
  color: #0A192F;
  text-decoration: none;
  transition: color 150ms ease;
}

.scp-card-heading-link:hover {
  color: #2563EB;
}

.scp-card-description {
  font-size: 13.5px;
  line-height: 1.5;
  color: #475569; /* WCAG AA: 5.4:1 contrast on white */
  margin: 0 0 16px;
  flex-grow: 1;
  word-break: break-word;
}

.scp-card-specs-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 8px;
  padding-top: 14px;
  border-top: 1px solid #F1F5F9;
  font-size: 12.5px;
  color: #64748B;
  margin-bottom: 14px;
}

.scp-card-spec strong {
  color: #1E293B;
  font-weight: 600;
}

.scp-spec-dot {
  color: #CBD5E1;
  font-weight: 700;
}

.scp-card-action-wrap {
  margin-top: auto;
}

.scp-card-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 9px 14px;
  background: #2563EB;
  color: #FFFFFF;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  box-sizing: border-box;
  transition: background-color 150ms ease;
}

.scp-card-cta:hover {
  background-color: #1D4ED8;
  color: #FFFFFF;
}

.scp-cta-arrow {
  transition: transform 150ms ease;
}

.scp-card-cta:hover .scp-cta-arrow {
  transform: translateX(3px);
}

/* ==========================================================================
   Empty State
   ========================================================================== */

.scp-directory-empty {
  padding: 48px 24px;
  text-align: center;
  background: #FFFFFF;
  border: 1px dashed #CBD5E1;
  border-radius: 8px;
  margin-top: 16px;
}

.scp-empty-icon {
  color: #94A3B8;
  margin-bottom: 12px;
}

.scp-empty-title {
  font-size: 18px;
  font-weight: 700;
  color: #0A192F;
  margin: 0 0 6px;
}

.scp-empty-desc {
  font-size: 14px;
  color: #64748B;
  margin: 0 0 16px;
  line-height: 1.5;
}

.scp-reset-btn {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 18px;
  background: #0A192F;
  color: #FFFFFF;
  border: none;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.scp-reset-btn:hover {
  background-color: #1E293B;
}

/* ==========================================================================
   Certification Continuation Banner (Bottom)
   ========================================================================== */

.scp-cert-continuation {
  background-color: #F8FAFC;
  padding: 0 0 54px;
}

.scp-cert-cta-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: 0 1px 3px 0 rgba(15, 23, 42, 0.04);
}

.scp-cert-cta-title {
  font-size: 18px;
  font-weight: 700;
  color: #0A192F;
  margin: 0 0 6px;
}

.scp-cert-cta-desc {
  font-size: 14px;
  line-height: 1.5;
  color: #64748B;
  margin: 0;
  max-width: 600px;
}

.scp-cert-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: #0A192F;
  color: #FFFFFF;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 150ms ease;
}

.scp-cert-cta-btn:hover {
  background-color: #1E293B;
  color: #FFFFFF;
}

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

@media (max-width: 1024px) {
  .scp-directory-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .scp-intro-title {
    font-size: 26px;
  }

  .scp-intro-copy {
    font-size: 14.5px;
  }

  .scp-cert-cta-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
    gap: 16px;
  }

  .scp-cert-cta-btn {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }
}

@media (max-width: 640px) {
  .scp-directory-container {
    padding: 0 16px;
  }

  .scp-directory-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .scp-search-field {
    max-width: 100%;
  }

  .scp-sector-tabs {
    gap: 6px;
  }

  .scp-sector-tab {
    font-size: 12px;
    padding: 5px 10px;
  }

  .scp-directory-catalog {
    padding: 24px 0 40px;
  }

  .scp-cert-continuation {
    padding: 0 0 40px;
  }
}

@media (max-width: 360px) {
  .scp-directory-container {
    padding: 0 12px;
  }

  .scp-directory-card {
    padding: 16px 14px 16px;
  }

  .scp-intro-title {
    font-size: 24px;
    word-break: break-word;
  }

  .scp-intro-copy {
    font-size: 14px;
    word-break: break-word;
  }

  .scp-sector-tab {
    font-size: 11.5px;
    padding: 4px 8px;
  }

  .scp-cert-indicator {
    font-size: 11px;
    padding: 2px 5px;
  }

  .scp-card-heading {
    font-size: 16px;
  }

  .scp-card-cta {
    font-size: 13px;
    padding: 8px 12px;
  }

  .scp-cert-cta-card {
    padding: 20px 14px;
  }
}