:root {
  --color-primary: #2c5aa0; /* Navy blue */
  --color-primary-dark: #24497a; /* Darker blue for active/hover */
  --color-banner-bg: #ffffff; /* White banner background */
  --color-nav-bg: #2c5aa0; /* Navigation bar background */
  --color-nav-hover: #24497a; /* Navigation link hover color */
  --color-text-default: #333333;
  --color-link: #ffffff; /* White links */
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: 16px;
  --font-size-large: 2.8rem;
  --font-size-medium: 1.25rem;
}

body {
  font-family: var(--font-family);
  background-color: #f9fafb;
  color: var(--color-text-default);
  margin: 0;
  padding: 0;
  font-size: var(--font-size-base);
  line-height: 1.6;
}

/* Header and Banner */
.header {
  background-color: var(--color-banner-bg);
  padding: 20px 0;
  text-align: center;
  border-bottom: 3px solid var(--color-primary);
}

.banner-logo {
  max-width: 30000px;
  height: auto;
  margin: 0 auto 10px;
  display: block;
}

/* Navigation bar */
.nav {
  background-color: var(--color-nav-bg);
  box-shadow: 0 4px 8px rgba(44, 90, 160, 0.4);
  border-radius: 0 0 8px 8px;
}

.nav__list {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 6px 0;
  margin: 0;
  gap: 30px;
}

.nav__link {
  color: var(--color-link);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 10px;
  transition: background-color 0.3s ease;
}

.nav__link:hover,
.nav__link:focus {
  background-color: var(--color-nav-hover);
}

.nav__link.active {
  background-color: var(--color-primary-dark);
  font-weight: 700;
}

/* Welcome Content */
.welcome-content {
  background-color: #ffffff;
  padding: 50px 20px 40px;
  text-align: center;
  max-width: 900px;
  margin: 40px auto 60px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 16px;
}

.welcome-content h2 {
  font-size: var(--font-size-large);
  color: var(--color-primary);
  margin-bottom: 20px;
  font-weight: 700;
}

.welcome-content p {
  font-size: var(--font-size-medium);
  color: var(--color-text-default);
  line-height: 1.75;
  max-width: 700px;
  margin: 1.25rem auto;
  font-weight: 500;
}

/* Video Section */
.video-container {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.video-container iframe {
  max-width: 100%;
  width: 560px;
  height: 315px;
  border-radius: 10px;
  box-shadow: 0 0 25px rgba(44, 90, 160, 0.3);
}

/* Appointment Contact */
.appointment-contact {
  background-color: #e9f1ff;
  padding: 40px 20px;
  border-radius: 12px;
  text-align: center;
  margin-bottom: 50px;
}

.appointment-contact a {
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 600;
}

/* Instagram section */
.instagram-section {
  padding: 40px 0;
  background: #f9fafb;
  text-align: center;
  margin-bottom: 50px;
}

.instagram-embed {
  width: 100%;
  max-width: 700px;
  height: 600px;
  border-radius: 15px;
  box-shadow: 0 0 30px rgba(44, 90, 160, 0.3);
  border: none;
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: white;
  text-align: center;
  padding: 20px 0;
  font-weight: 600;
  margin-top: 40px;
}
.doctors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.doctor-profile {
  background: white;
  border-radius: 15px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
  padding: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.doctor-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%; /* Circle */
  object-fit: cover;
  border: 4px solid var(--color-primary);
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(44,90,160,0.5);
}

.doctor-profile h3 {
  margin: 0 0 8px 0;
  color: var(--color-primary);
  font-size: 1.25rem;
  font-weight: 700;
}

.doctor-profile p {
  color: #555;
  font-size: 1rem;
  line-height: 1.4;
  margin: 0;
  padding: 0 10px;
}
body {
  padding: 20px;
}

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

section {
  margin-bottom: 40px;
  padding: 24px;
  border-radius: 12px;
}
h1, h2, h3 {
  margin-top: 24px;
  margin-bottom: 16px;
  padding: 0 8px;
}

p {
  margin-bottom: 18px;
  padding: 0 8px;
}
.services-section {
  max-width: 1120px;
  margin: 60px auto;
  padding: 0 16px;
}

.service-row {
  display: flex;
  align-items: center;
  background: #fff;
  margin-bottom: 36px;
  border-radius: 14px;
  box-shadow: 0 4px 18px rgba(44,90,160,0.06);
  padding: 24px;
}

.service-image {
  width: 260px;
  max-width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  margin-right: 32px;
  box-shadow: 0 2px 12px rgba(44,90,160,0.08);
}

.service-content {
  flex: 1;
}

.service-content h2 {
  font-size: 2rem;
  color: #333;
  margin-bottom: 16px;
  font-family: 'Segoe UI', Arial, sans-serif;
}

.service-content p {
  font-size: 1.12rem;
  color: #444;
  margin-bottom: 0;
  line-height: 1.7;
}

/* Responsive for mobile */
@media (max-width: 700px) {
  .service-row {
    flex-direction: column;
    text-align: center;
    padding: 16px;
  }
  .service-image {
    margin: 0 0 18px 0;
    width: 90vw;
    height: 160px;
    max-width: 360px;
  }
  .service-content h2 {
    font-size: 1.3rem;
  }
}

.thank-you-box {
  max-width: 480px;
  margin: 90px auto;
  background: #fff;
  padding: 40px 20px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 6px 24px rgba(44,90,160,0.12);
}

.thank-you-box h1 {
  font-size: 2rem;
  color: #2c5aa0;
  margin-bottom: 18px;
}

.thank-you-box p {
  font-size: 1.15rem;
  color: #555;
  margin-bottom: 22px;
}

.thank-you-box .btn {
  background: #2c5aa0;
  color: #fff;
  padding: 10px 28px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.25s;
}

.thank-you-box .btn:hover {
  background: #24497a;
}

/* Additional styles for form, sections, buttons can be added similarly */