/**
 * Dr. Anil Kumar's Eye Hospital - Services Hub & Service Family Styles
 * ===================================================================
 * Implements Section H "P5", Section K (c-router, c-service-card),
 * and ServicePage two-column layout.
 */

/* --------------------------------------------------------------------------
 * P5 Eye Care Services Hub Page
 * ----------------------------------------------------------------------- */

.hub-hero {
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-10) 0 var(--space-8);
}

.hub-hero-inner {
  max-width: 840px;
}

.hub-eyebrow {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue-600);
  margin-bottom: var(--space-2);
}

.hub-h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  font-weight: 700;
  color: var(--color-heading);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-4);
}

.hub-lede {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hub-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hub-byline {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-3);
  margin-top: var(--space-4);
}

/* --------------------------------------------------------------------------
 * Section 2: Start with what you notice (c-router)
 * ----------------------------------------------------------------------- */

.symptom-router-section {
  padding: var(--space-12) 0;
  background-color: var(--color-bg);
}

.section-header {
  margin-bottom: var(--space-8);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}

.section-intro {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
}

.symptom-router-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
}

@media (min-width: 768px) {
  .symptom-router-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

.symptom-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.symptom-item:hover {
  border-color: var(--color-blue-600);
  box-shadow: var(--shadow-sm);
}

.symptom-item.is-urgent {
  border-color: #FCA5A5;
  background-color: #FFFDFD;
}

.symptom-dt {
  margin-bottom: var(--space-3);
}

.symptom-header-wrap {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.symptom-title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--color-heading);
  line-height: var(--lh-snug);
  margin: 0;
}

.urgent-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background-color: #FEE2E2;
  color: #DC2626;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.symptom-dd {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.symptom-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.symptom-link {
  color: var(--color-blue-600);
  font-weight: 500;
  font-size: var(--fs-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.symptom-link:hover {
  text-decoration: underline;
  color: var(--color-blue-700);
}

.symptom-urgent-note {
  font-size: var(--fs-xs);
  color: #DC2626;
  font-weight: 500;
  margin: 0;
}

/* --------------------------------------------------------------------------
 * Section 3: Conditions and Treatments (12 Cards Grid)
 * ----------------------------------------------------------------------- */

.conditions-section {
  padding: var(--space-12) 0;
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.conditions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .conditions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .conditions-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-doctor-lead {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: calc(-1 * var(--space-2));
  margin-bottom: var(--space-3);
}

/* --------------------------------------------------------------------------
 * Section 4: Eye emergencies: what to do first (Warning Box)
 * ----------------------------------------------------------------------- */

.emergency-box-section {
  padding: var(--space-12) 0;
}

.c-warning-box {
  background-color: #FEF2F2;
  border: 1px solid #FECACA;
  border-left: 5px solid #DC2626;
  border-radius: var(--radius-md);
  padding: var(--space-8);
}

.warning-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.warning-icon {
  color: #DC2626;
  flex-shrink: 0;
}

.warning-title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: #991B1B;
  margin: 0;
}

.warning-list {
  margin: 0 0 var(--space-6) var(--space-5);
  padding: 0;
  color: var(--color-text);
  line-height: var(--lh-relaxed);
}

.warning-list li {
  margin-bottom: var(--space-3);
}

.warning-list strong {
  color: var(--color-heading);
}

.warning-action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid #FCA5A5;
}

.warning-availability {
  font-size: var(--fs-sm);
  color: #7F1D1D;
  margin: 0;
  max-width: 600px;
}

.btn-emergency {
  background-color: #DC2626;
  color: #FFFFFF;
  border: 1px solid #B91C1C;
  font-weight: 600;
}

.btn-emergency:hover {
  background-color: #B91C1C;
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
 * Section 5 & 6: Patient Guides & Not Sure Where to Start
 * ----------------------------------------------------------------------- */

.hub-guides-section {
  padding: var(--space-12) 0;
  background-color: var(--color-bg);
}

.guide-links-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.guide-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-heading);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.guide-chip:hover {
  background-color: var(--color-blue-50);
  border-color: var(--color-blue-600);
  color: var(--color-blue-700);
}

.not-sure-card {
  background-color: var(--color-bg-alt-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .not-sure-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.not-sure-content h2 {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}

.not-sure-content p {
  color: var(--color-text);
  margin: 0;
  max-width: 650px;
  line-height: var(--lh-relaxed);
}

/* --------------------------------------------------------------------------
 * ServicePage Family Detail Page Layout (Exemplar Pattern)
 * ----------------------------------------------------------------------- */

.service-detail-page {
  padding-bottom: var(--space-16);
}

.service-header {
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-8) 0 var(--space-8);
}

.service-header-inner {
  max-width: 800px;
}

.service-h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  font-weight: 700;
  color: var(--color-heading);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-4);
}

.service-lede {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.service-byline {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}

.service-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-8);
  padding-top: var(--space-8);
}

@media (min-width: 1024px) {
  .service-layout {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: var(--space-12);
    align-items: start;
  }
}

.service-article {
  min-width: 0;
  max-width: 720px;
}

.service-article h2 {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
  padding-bottom: var(--space-2);
}

.service-article h3 {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--color-heading);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.service-article p {
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.service-article ul,
.service-article ol {
  margin-bottom: var(--space-5);
  padding-left: var(--space-6);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
}

.service-article li {
  margin-bottom: var(--space-2);
}

.service-article strong {
  color: var(--color-heading);
}

.equipment-block {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-blue-600);
  font-size: var(--fs-sm);
  color: var(--color-text);
}

.service-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .service-aside {
    position: sticky;
    top: 90px;
  }
}

.aside-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.aside-card-title {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-3);
}

.aside-card p {
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.aside-emergency-card {
  background-color: #FEF2F2;
  border-color: #FECACA;
}

.aside-emergency-card .aside-card-title {
  color: #991B1B;
}

.references-section {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.references-section h2 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-bottom: none;
  padding: 0;
  margin-bottom: var(--space-2);
}

.nav-back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-blue-600);
  font-weight: 500;
  text-decoration: none;
  margin-top: var(--space-6);
}

.nav-back-link:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
 * Shared Clinical Typography & Procedure Layout Utilities
 * ----------------------------------------------------------------------- */
.eyebrow {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue-600);
  margin-bottom: var(--space-2);
}

.lede {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-text-muted);
  max-width: 68ch;
  margin-bottom: var(--space-4);
}

.service-body {
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
}

.service-doctors-section,
.service-faq-section {
  margin-top: var(--space-10);
}

.procedure-summary-box {
  margin-top: var(--space-8);
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.c-answer-box {
  background-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-blue-600);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-4) 0;
}

.content-block {
  margin-bottom: var(--space-8);
}

.eye-diagram-container {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mobile-toc-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.sidebar-link {
  color: var(--color-navy-900);
  font-size: var(--fs-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.sidebar-link:hover {
  color: var(--color-blue-600);
  text-decoration: underline;
}