/* ==========================================================================
   SHORELINE MEDICAL BILLING — 404 ERROR PAGE STYLESHEET
   Filename: assets/css/404.css
   Standards: Strict Light Theme, 9-Color Tokens, Zero Dark Mode
   RULE[westyle.md] & RULE[code-quality.md] Compliant
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. HERO & MAIN WRAPPER
   -------------------------------------------------------------------------- */
.error-page-wrapper {
  background: linear-gradient(180deg, var(--color-background-soft) 0%, var(--color-background) 100%);
  min-height: calc(100vh - 160px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(38px, 5vw, 64px) 0;
  position: relative;
  overflow: hidden;
}

/* Subtle background glowing radial highlights */
.error-bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(24, 183, 201, 0.12) 0%, rgba(0, 102, 179, 0.04) 60%, transparent 80%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
}

.error-container {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
  padding: 0 20px;
}

/* --------------------------------------------------------------------------
   2. BREADCRUMB & STATUS CHIP
   -------------------------------------------------------------------------- */
.error-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-body-text);
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.8);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}

.error-breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s ease;
}

.error-breadcrumb a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.error-badge-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 30px;
  background: rgba(0, 102, 179, 0.08);
  border: 1px solid var(--color-border);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulseBeacon 2s infinite ease-in-out;
}

@keyframes pulseBeacon {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.4);
    opacity: 0.5;
  }
}

/* --------------------------------------------------------------------------
   3. ANIMATED 404 FLOATING DISPLAY & ECG HEARTBEAT LINE
   -------------------------------------------------------------------------- */
.error-visual-stage {
  position: relative;
  display: inline-block;
  margin: 10px 0 24px;
}

.error-numeric-badge {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(6.5rem, 15vw, 11rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  animation: floatBadge 4s infinite ease-in-out;
  text-shadow: 0 16px 32px rgba(0, 102, 179, 0.12);
  user-select: none;
}

@keyframes floatBadge {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* ECG Healthcare Pulse Wave Graphic */
.ecg-pulse-container {
  width: 100%;
  max-width: 480px;
  height: 48px;
  margin: -10px auto 20px;
  position: relative;
}

.ecg-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.ecg-path-bg {
  stroke: var(--color-border);
  stroke-width: 2;
  fill: none;
  opacity: 0.6;
}

.ecg-path-pulse {
  stroke: var(--color-accent);
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: none;
  stroke-dasharray: 80, 320;
  animation: ecgSweep 2.8s infinite linear;
}

@keyframes ecgSweep {
  0% {
    stroke-dashoffset: 400;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

/* --------------------------------------------------------------------------
   4. TYPOGRAPHY & HEADINGS
   -------------------------------------------------------------------------- */
.error-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(1.8rem, 3.8vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  line-height: 1.25;
}

.error-title .accent {
  color: var(--color-primary);
}

.error-lead {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-body-text);
  max-width: 680px;
  margin: 0 auto 28px;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   5. CLINICAL DIAGNOSTIC CARD (MEDICAL THEME)
   -------------------------------------------------------------------------- */
.diagnostic-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 102, 179, 0.06);
  max-width: 720px;
  margin: 0 auto 32px;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.diagnostic-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 102, 179, 0.1);
}

.diagnostic-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.diagnostic-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.diagnostic-icon {
  font-size: 1.4rem;
  color: var(--color-secondary);
  filter: none;
}

.diagnostic-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.diagnostic-status-tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(24, 183, 201, 0.12);
  color: var(--color-secondary);
  border: 1px solid rgba(24, 183, 201, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.diagnostic-item {
  background: var(--color-background-soft);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 10px 14px;
}

.diagnostic-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-body-text);
  margin-bottom: 4px;
  font-weight: 600;
}

.diagnostic-value {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text);
  word-break: break-all;
}

.diagnostic-url-row {
  background: var(--color-background-soft);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.diagnostic-url-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-body-text);
}

.diagnostic-url-code {
  font-family: monospace;
  font-size: 0.88rem;
  color: var(--color-primary);
  background: #FFFFFF;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   6. SMART ROUTE AUTO-SUGGESTIONS
   -------------------------------------------------------------------------- */
.smart-suggestions-box {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--color-border);
}

.smart-suggestions-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.smart-suggestions-title ion-icon {
  color: var(--color-accent);
}

.smart-suggestions-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.suggestion-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px rgba(0, 102, 179, 0.04);
}

.suggestion-pill:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 102, 179, 0.18);
}

.suggestion-pill ion-icon {
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   7. INTERACTIVE INSTANT SEARCH BOX
   -------------------------------------------------------------------------- */
.error-search-section {
  max-width: 640px;
  margin: 0 auto 36px;
  position: relative;
}

.error-search-box {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1.5px solid var(--color-border);
  border-radius: 36px;
  padding: 6px 8px 6px 18px;
  box-shadow: 0 6px 20px rgba(0, 102, 179, 0.06);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.error-search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.15), 0 8px 24px rgba(0, 102, 179, 0.08);
}

.error-search-icon {
  color: var(--color-secondary);
  font-size: 1.1rem;
  margin-right: 10px;
}

.error-search-input {
  flex: 1;
  border: none;
  outline: none;
  font-family: 'Inter', sans-serif;
  font-size: 0.98rem;
  color: var(--color-text);
  background: transparent;
}

.error-search-input::placeholder {
  color: #8CA0B0;
}

.error-search-btn {
  background: var(--color-primary);
  color: #FFFFFF;
  border: none;
  outline: none;
  padding: 10px 20px;
  border-radius: 24px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.error-search-btn:hover {
  background: var(--color-secondary);
  transform: translateY(-1px);
}

/* Live search results dropdown */
.error-search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  box-shadow: 0 12px 36px rgba(0, 102, 179, 0.12);
  max-height: 320px;
  overflow-y: auto;
  z-index: 10;
  display: none;
  text-align: left;
}

.error-search-results.is-active {
  display: block;
}

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  transition: background 0.15s ease;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: var(--color-background-soft);
}

.result-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.result-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text);
}

.result-category {
  font-size: 0.78rem;
  color: var(--color-body-text);
}

.result-arrow {
  color: var(--color-primary);
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   8. ACTION BUTTONS HUB
   -------------------------------------------------------------------------- */
.error-actions-hub {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

.btn-error-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 30px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%) !important;
  color: #FFFFFF;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(0, 102, 179, 0.25);
  transition: all 0.25s ease;
}

.btn-error-primary:hover {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%) !important;
  box-shadow: 0 8px 24px rgba(0, 143, 163, 0.35);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-error-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 30px;
  background: #FFFFFF;
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-error-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-background-soft);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   9. QUICK DIRECTORY TILES
   -------------------------------------------------------------------------- */
.error-quick-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
  text-align: left;
}

.quick-tile-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px 18px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 102, 179, 0.03);
}

.quick-tile-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  box-shadow: 0 8px 20px rgba(24, 183, 201, 0.12);
}

.quick-tile-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-background-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.quick-tile-card:hover .quick-tile-icon {
  background: var(--color-primary);
  color: #FFFFFF;
}

.quick-tile-text h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 2px;
}

.quick-tile-text p {
  font-size: 0.78rem;
  color: var(--color-body-text);
  margin: 0;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   10. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .diagnostic-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .diagnostic-url-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  
  .diagnostic-url-code {
    max-width: 100%;
    width: 100%;
  }

  .error-actions-hub {
    flex-direction: column;
    width: 100%;
  }

  .btn-error-primary,
  .btn-error-secondary {
    width: 100%;
    justify-content: center;
  }
}