/* ==========================================================================
   Kidsrenal Care - CSS Stylesheet
   ========================================================================== */

/* ==========================================================================
   Custom Properties (Root Variables)
   ========================================================================== */
:root {
  --primary: #1a5276;
  --primary-light: #2980b9;
  --primary-lighter: #3498db;
  --primary-bg: #eaf2f8;
  --secondary: #16a085;
  --secondary-light: #1abc9c;
  --accent: #85c1e9;
  --accent-light: #d6eaf8;
  --bg-white: #ffffff;
  --bg-light: #f8fafe;
  --bg-section: #f0f4f8;
  --text-dark: #1e293b;
  --text-body: #475569;
  --text-light: #64748b;
  --text-white: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-body);
  line-height: 1.7;
  background-color: var(--bg-white);
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.3;
}

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

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

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 640px;
  margin: 0 auto;
}

/* Grid System */
.grid { display: grid; gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-white);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 44px;
  height: 44px;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  flex-direction: column;
}

.logo-tagline {
  font-size: 0.7rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-body);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  z-index: 1100;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-dark);
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  justify-content: center;
}

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

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

.btn-secondary {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

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

.btn-outline-white {
  border: 2px solid var(--text-white);
  color: var(--text-white);
  background: transparent;
}

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

.btn-whatsapp {
  background: #25D366;
  color: var(--text-white);
}

.btn-whatsapp:hover {
  background: #128C7E;
  color: var(--text-white);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, #f8fafe 0%, #eaf2f8 50%, #d6eaf8 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: var(--primary-lighter);
  opacity: 0.05;
  border-radius: 50%;
  top: -100px;
  right: -100px;
}

.hero::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: var(--accent);
  opacity: 0.1;
  border-radius: 50%;
  bottom: -50px;
  left: -100px;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-body);
  margin-bottom: 12px;
  font-weight: 500;
}

.hero-text {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-light);
}

.hero-image {
  text-align: center;
  position: relative;
}

/* ==========================================================================
   Trust Bar / Cards
   ========================================================================== */
.trust-bar {
  padding: 60px 0;
  background: var(--bg-white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-card {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-md);
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
}

.trust-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
  transform: translateY(-4px);
}

.trust-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--primary-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
  stroke: var(--primary);
}

.trust-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.trust-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about {
  background: var(--bg-light);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  margin-bottom: 16px;
}

.about-highlight {
  padding: 24px;
  background: var(--primary-bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Doctor Profile Section
   ========================================================================== */
.doctor-section {
  background: var(--bg-white);
}

.doctor-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: 48px;
  align-items: center;
}

.doctor-image {
  width: 260px;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--border-light);
  margin: 0 auto;
}

.doctor-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.doctor-name {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.doctor-title {
  font-size: 1.05rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 20px;
}

.doctor-quals {
  list-style: none;
  padding: 0;
}

.doctor-quals li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text-body);
  font-size: 0.95rem;
}

.doctor-quals li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: bold;
}

.doctor-bio {
  margin: 20px 0;
  color: var(--text-body);
  line-height: 1.8;
}

.doctor-ctas {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Conditions Grid
   ========================================================================== */
.conditions-section {
  background: var(--bg-light);
}

.conditions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.condition-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.condition-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-light);
  transform: translateY(-2px);
}

.condition-card-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.condition-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.condition-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 12px;
}

.condition-card .learn-more {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.condition-card .learn-more:hover {
  gap: 8px;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-section {
  background: var(--bg-white);
}

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

.service-card {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.service-card:hover {
  background: var(--bg-white);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.service-card-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ==========================================================================
   When to See Section
   ========================================================================== */
.when-to-see {
  background: linear-gradient(135deg, var(--primary) 0%, #2471a3 100%);
  color: var(--text-white);
  position: relative;
}

.when-to-see .section-title {
  color: var(--text-white);
}

.when-to-see .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.symptom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.symptom-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(10px);
}

.symptom-item-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.symptom-item span {
  font-size: 0.95rem;
  color: var(--text-white);
}

.when-to-see-note {
  text-align: center;
  margin-top: 32px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  font-style: italic;
  color: rgba(255, 255, 255, 0.9);
}

/* ==========================================================================
   Child-Friendly Section
   ========================================================================== */
.child-friendly {
  background: var(--bg-light);
}

.child-friendly-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.child-friendly-features {
  list-style: none;
  padding: 0;
}

.child-friendly-features li {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.feature-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  background: var(--bg-white);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--bg-white);
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-body);
  font-size: 0.9rem;
  line-height: 1.7;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-disclaimer {
  text-align: center;
  margin-top: 32px;
  padding: 16px;
  font-size: 0.8rem;
  color: var(--text-light);
  background: var(--bg-light);
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Appointment Section
   ========================================================================== */
.appointment-section {
  background: var(--bg-light);
}

.appointment-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.appointment-header {
  background: linear-gradient(135deg, var(--primary) 0%, #2471a3 100%);
  padding: 40px;
  color: var(--text-white);
  text-align: center;
}

.appointment-form {
  padding: 40px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary-light);
  outline: none;
  box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group-full {
  grid-column: 1 / -1;
}

.form-consent {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 20px 0;
}

.form-consent input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--primary);
}

.form-submit {
  text-align: center;
  margin-top: 24px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}

.form-success.show {
  display: block;
}

.form-success-icon {
  width: 64px;
  height: 64px;
  background: var(--secondary-light);
  color: var(--text-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

/* ==========================================================================
   Testimonials Section
   ========================================================================== */
.testimonials-section {
  background: var(--bg-white);
}

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

.testimonial-card {
  background: var(--bg-light);
  padding: 32px;
  border-radius: var(--radius-md);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-size: 4rem;
  color: var(--accent);
  position: absolute;
  top: 12px;
  left: 24px;
  font-family: serif;
  line-height: 1;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-body);
  font-style: italic;
  margin-bottom: 16px;
  padding-top: 24px;
}

.testimonial-author {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.9rem;
}

.testimonial-placeholder {
  text-align: center;
  padding: 4px 12px;
  background: var(--accent-light);
  color: var(--primary);
  font-size: 0.75rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-top: 8px;
}

/* ==========================================================================
   Blog / Education Section
   ========================================================================== */
.blog-section {
  background: var(--bg-light);
}

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

.blog-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.blog-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.blog-card-image {
  height: 180px;
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card-content {
  padding: 24px;
}

.blog-card-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 12px;
}

.blog-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.4;
}

.blog-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-card .read-more {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.blog-card .read-more:hover {
  gap: 8px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-section {
  background: var(--bg-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--primary-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 300px;
  background: var(--bg-section);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #0f172a;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo-text {
  color: var(--text-white);
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-brand .tagline {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  margin-top: 8px;
  display: block;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 16px;
  line-height: 1.7;
}

.footer h4 {
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 48px;
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-disclaimer {
  text-align: center;
  padding: 16px 0;
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   Floating Elements & Mobile Buttons
   ========================================================================== */
.floating-buttons {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.floating-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.floating-btn:hover {
  transform: scale(1.1);
}

.floating-btn-whatsapp {
  background: #25D366;
  color: var(--text-white);
}

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

.mobile-appointment {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 800;
  padding: 12px 16px;
  background: var(--bg-white);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }

.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-40 { margin-bottom: 40px; }
.mb-48 { margin-bottom: 48px; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   Homepage Compatibility Styles
   (reconcile class names used in index.html with base CSS)
   ========================================================================== */

/* Header inner layout */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Hamburger line compatibility */
.hamburger .hamburger-line {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-dark);
  transition: var(--transition);
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-white);
  z-index: 999;
  padding: 40px 24px;
  overflow-y: auto;
}

.mobile-nav-overlay.active {
  display: block;
}

.mobile-nav-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav-links li {
  margin-bottom: 16px;
}

.mobile-nav-links a {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-body);
  text-decoration: none;
  transition: var(--transition);
}

.mobile-nav-links a:hover {
  color: var(--primary);
}

.mobile-nav-footer {
  margin-top: 16px;
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* Hero inner layout (alias for hero-content) */
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Trust statements in hero */
.trust-statements {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.trust-statement {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-light);
}

/* Trust icon alias */
.trust-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--primary-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.trust-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.trust-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* About grid alias */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* Highlight box alias */
.highlight-box {
  padding: 24px;
  background: var(--primary-bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: var(--text-dark);
}

/* Doctor image container */
.doctor-image-container {
  width: 260px;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--border-light);
  margin: 0 auto;
}

/* Qualifications list alias */
.qualifications-list {
  list-style: none;
  padding: 0;
}

.qualifications-list li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text-body);
  font-size: 0.95rem;
}

.qualifications-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: bold;
}

/* Condition card sub-class aliases */
.condition-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.condition-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.condition-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 12px;
}

.condition-link {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.condition-link:hover {
  gap: 8px;
}

/* Service icon alias */
.service-icon {
  margin-bottom: 20px;
}

/* Symptoms list alias */
.symptoms-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* When-to-see symptom items on white bg (dark section) */
.when-to-see .symptom-item svg {
  color: white;
  stroke: white;
}

.when-to-see .symptom-item {
  color: white;
}

/* Text utilities */
.text-muted {
  color: var(--text-light);
}

.text-sm {
  font-size: 0.85rem;
}

.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mt-5 { margin-top: 32px; }

/* Feature item in child-friendly section */
.feature-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.feature-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* Child-friendly grid alias */
.child-friendly-grid {
  align-items: center;
}

/* FAQ with <details>/<summary> elements */
details.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

details.faq-item[open] {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

details.faq-item summary.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--bg-white);
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
  transition: var(--transition);
  list-style: none;
}

details.faq-item summary.faq-question::-webkit-details-marker {
  display: none;
}

details.faq-item summary.faq-question::marker {
  display: none;
  content: '';
}

details.faq-item summary.faq-question:hover {
  color: var(--primary);
}

details.faq-item .faq-icon {
  transition: transform 0.3s ease;
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--primary);
}

details.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

details.faq-item .faq-answer {
  padding: 0 24px 20px;
  color: var(--text-body);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Appointment form - form placed directly without wrapper div */
form.appointment-form {
  padding: 40px;
}

form.appointment-form .form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text-dark);
}

form.appointment-form .form-control:focus {
  border-color: var(--primary-light);
  outline: none;
  box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}

form.appointment-form textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

.full-width {
  grid-column: 1 / -1;
}

.checkbox-group {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--primary);
  flex-shrink: 0;
}

.success-message {
  text-align: center;
  padding: 40px;
}

.success-message svg {
  margin: 0 auto 16px;
  display: block;
}

.success-message h4 {
  color: var(--secondary);
  margin-bottom: 8px;
}

/* Contact card aliases */
.contact-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.contact-card svg {
  flex-shrink: 0;
}

.contact-card h5 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--text-body);
}

.contact-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Map placeholder */
.map-placeholder {
  height: 300px;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  gap: 16px;
}

/* Testimonials card aliases */
.testimonial-card .badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-light);
  color: var(--primary);
  font-size: 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.testimonial-card .quote {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 12px;
  padding-top: 24px;
}

.testimonial-card .author {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.9rem;
}

/* Blog card aliases */
.blog-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.blog-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.4;
}

.blog-preview {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-link {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.blog-link:hover {
  gap: 8px;
}

.blog-card {
  padding: 24px;
}

/* Floating button aliases */
.float-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  color: white;
}

.float-btn:hover {
  transform: scale(1.1);
  color: white;
}

.float-whatsapp {
  background: #25D366;
}

.float-phone {
  background: var(--primary);
}

/* Mobile appointment bar alias */
.mobile-appointment-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 800;
  padding: 12px 16px;
  background: var(--bg-white);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  z-index: 800;
}

.back-to-top:hover {
  background: var(--primary-light);
  transform: scale(1.1);
}

.back-to-top.visible {
  display: flex;
}

/* Footer aliases */
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-title {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact-list svg {
  flex-shrink: 0;
}

/* Nav CTA hide on mobile to avoid duplication */
@media (max-width: 768px) {
  .nav-cta {
    display: none;
  }
}

/* ==========================================================================
   Page-specific styles
   ========================================================================== */
.page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, #f8fafe 0%, #eaf2f8 100%);
  text-align: center;
}

.page-hero h1 {
  font-size: 2.5rem;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  /* Tablet */
  .grid-4, .trust-grid, .conditions-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-3, .services-grid, .symptom-grid, .testimonial-grid, .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Small Tablet / Large Phone */
  .nav-links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 40px 24px;
    align-items: flex-start;
    gap: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }

  .nav-links.mobile-nav-active {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .hero-content, .hero-inner, .about-content, .about-grid, .doctor-card, .child-friendly-content, .child-friendly-grid, .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section {
    padding: 48px 0;
  }

  .grid-4, .trust-grid, .conditions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3, .services-grid, .symptom-grid, .symptoms-list, .testimonial-grid, .blog-grid, .form-grid {
    grid-template-columns: 1fr;
  }

  .mobile-appointment, .mobile-appointment-bar {
    display: flex;
  }

  .floating-buttons {
    bottom: 80px; /* above mobile appointment bar */
  }
  
  .doctor-image, .doctor-image-container {
    width: 100%;
    max-width: 320px;
  }

  .mobile-nav-overlay {
    /* available on mobile */
  }

  .nav-desktop {
    display: none;
  }
}

@media (max-width: 480px) {
  /* Phone */
  .grid-4, .trust-grid, .conditions-grid {
    grid-template-columns: 1fr;
  }

  .hero-ctas, .doctor-ctas {
    flex-direction: column;
  }
  
  .hero-ctas .btn, .doctor-ctas .btn {
    width: 100%;
  }

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

/* Payment Section Styles */
.payment-section {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.payment-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.payment-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 480px) {
  .payment-options {
    grid-template-columns: 1fr;
  }
}

.payment-option {
  position: relative;
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  background: white;
  display: flex;
  align-items: center;
  gap: 12px;
}

.payment-option:hover {
  border-color: var(--primary-light);
}

.payment-option input[type="radio"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: 50%;
  margin: 0;
  cursor: pointer;
  position: relative;
}

.payment-option input[type="radio"]:checked {
  border-color: var(--primary);
}

.payment-option input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
}

.payment-option.selected {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.payment-option-label {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 1rem;
}

.payment-details {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  border: 1px solid var(--border-light);
  display: none;
}

.payment-details.active {
  display: block;
}

.payment-details h4 {
  color: var(--text-dark);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.qr-container {
  background: white;
  padding: 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: inline-block;
  margin: 16px 0;
  text-align: center;
}

.qr-container img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  display: block;
}

.qr-info {
  margin-top: 16px;
  font-size: 0.95rem;
}

.upi-instructions {
  margin-bottom: 24px;
  text-align: left;
}

.upi-instructions ol {
  padding-left: 20px;
  margin-top: 8px;
}

.upi-instructions li {
  margin-bottom: 6px;
  color: var(--text-body);
}

.file-upload-container {
  margin-top: 24px;
  text-align: left;
}

.file-upload-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.file-drop-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  background: white;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.file-drop-area:hover {
  border-color: var(--primary-light);
  background: var(--bg-light);
}

.file-drop-area input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-drop-icon {
  margin-bottom: 12px;
  color: var(--primary-light);
}

.file-drop-text {
  font-size: 0.95rem;
  color: var(--text-body);
  margin-bottom: 4px;
}

.file-drop-hint {
  font-size: 0.8rem;
  color: var(--text-light);
}

.file-preview {
  display: none;
  margin-top: 16px;
  padding: 12px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: space-between;
}

.file-preview.active {
  display: flex;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
}

.file-thumbnail {
  width: 40px;
  height: 40px;
  border-radius: 4px;
  object-fit: cover;
  background: var(--bg-light);
}

.file-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

.file-remove {
  background: transparent;
  border: none;
  color: #e74c3c;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
}

.file-remove:hover {
  background: #fdf2f2;
}

.payment-error {
  color: #e74c3c;
  font-size: 0.875rem;
  margin-top: 8px;
  display: none;
}