:root {
  --primary-color: #4788c7;
  --secondary-color: #0ac1f2;
  --accent-color: #9fed9f;
  --light-bg: #f3f3f3;
  --dark-bg: #151327;
  --info-color: #d7f2f7;
  --font-family: "Inter", sans-serif;
  --border-radius: 12px;
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

.navbar-nav {
  display: flex;
  align-items: center;
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  padding: 0rem 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-color) !important;
  text-decoration: none;
}

.brand-text {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-link {
  font-weight: 500;
  color: #333 !important;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 100%;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(
    135deg,
    var(--light-bg) 0%,
    var(--info-color) 100%
  );
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" style="stop-color:%234788c7;stop-opacity:0.1"/><stop offset="100%" style="stop-color:%234788c7;stop-opacity:0"/></radialGradient></defs><circle cx="200" cy="200" r="300" fill="url(%23a)"/><circle cx="800" cy="800" r="400" fill="url(%23a)"/></svg>');
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 100px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--dark-bg);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-buttons .btn {
  padding: 12px 30px;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-transform: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border: none;
  box-shadow: 0 4px 15px rgba(71, 136, 199, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(
    135deg,
    var(--secondary-color),
    var(--primary-color)
  );
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(71, 136, 199, 0.5);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  font-weight: 600;
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.hero-stats {
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: #666;
  font-weight: 500;
  margin-bottom: 0;
}

.hero-image {
  position: relative;
  z-index: 2;
}

.hero-image img {
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  animation: float 6s ease-in-out infinite;
}

.floating-card {
  position: absolute;
  bottom: 20px;
  left: 20px;
  animation: float 4s ease-in-out infinite;
}

.floating-card .card {
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  backdrop-filter: blur(10px);
}

.avatar img {
  width: 40px;
  height: 40px;
  object-fit: cover;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Sections */
section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark-bg);
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: #666;
  text-align: center;
  margin-bottom: 3rem;
}

/* Service Cards */
.service-card {
  background: white;
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  text-align: center;
  transition: var(--transition);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--info-color), var(--light-bg));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  transition: var(--transition);
}

.service-icon i {
  font-size: 2rem;
}

.service-card:hover .service-icon {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
}

.service-card:hover .service-icon i {
  color: white !important;
}

.service-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--dark-bg);
  margin-bottom: 1rem;
}

.service-card p {
  color: #666;
  line-height: 1.6;
}

/* Doctor Cards */
.doctor-card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

.doctor-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.doctor-image {
  position: relative;
  overflow: hidden;
  height: 250px;
}

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

.doctor-card:hover .doctor-image img {
  transform: scale(1.05);
}

.doctor-status {
  position: absolute;
  top: 15px;
  right: 15px;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-online {
  background: var(--accent-color);
  color: #2d5a27;
}

.status-offline {
  background: #ffd6d6;
  color: #d63384;
}

.doctor-info {
  padding: 1.5rem;
}

.doctor-info h5 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dark-bg);
  margin-bottom: 0.5rem;
}

.doctor-specialty {
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: 1rem;
}

.doctor-rating {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.rating-stars {
  color: #ffc107;
  margin-right: 0.5rem;
}

.rating-text {
  color: #666;
  font-size: 0.875rem;
}

.doctor-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Reels Section */
.reel-card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

.reel-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.reel-thumbnail {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.reel-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1.5rem;
  transition: var(--transition);
}

.play-button:hover {
  background: white;
  transform: translate(-50%, -50%) scale(1.1);
}

.reel-content {
  padding: 1rem;
}

.reel-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark-bg);
  margin-bottom: 0.5rem;
}

.reel-author {
  color: var(--primary-color);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.reel-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.reel-stats {
  display: flex;
  gap: 1rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: #666;
  font-size: 0.875rem;
}

.interaction-buttons {
  display: flex;
  gap: 0.5rem;
}

.btn-icon {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  border: 1px solid #ddd;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  transition: var(--transition);
}

.btn-icon:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-icon.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(
    135deg,
    var(--dark-bg) 0%,
    var(--primary-color) 100%
  );
  padding: 80px 0;
  text-align: center;
}

/* Chat Styles */
.chat-container {
  padding: 1rem;
}

.bot-message,
.user-message {
  margin-bottom: 1rem;
}

.user-message {
  text-align: right;
}

.user-message .message-content .bg-light {
  background: var(--primary-color) !important;
  color: white;
}

.avatar-sm {
  width: 35px;
  height: 35px;
}

.message-content {
  max-width: 80%;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

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

  .service-card,
  .doctor-card {
    margin-bottom: 2rem;
  }

  .hero-buttons .btn {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
  }

  .hero-buttons .btn:last-child {
    margin-bottom: 0;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }

  section {
    padding: 60px 0;
  }

  .service-card {
    padding: 2rem 1.5rem;
  }
}

/* Loading Animation */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Form Styles */
.form-control,
.form-select {
  border-radius: var(--border-radius);
  border: 2px solid #e9ecef;
  padding: 0.5rem 2rem 0.5rem 1rem;
  transition: var(--transition);
}
.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(71, 136, 199, 0.25);
}

/* Modal Styles */
.modal-content {
  border-radius: var(--border-radius);
  border: none;
  box-shadow: var(--box-shadow);
}

.modal-header {
  border-bottom: 1px solid #e9ecef;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* Utility Classes */
.text-primary {
  color: var(--primary-color) !important;
}

.bg-primary {
  background-color: var(--primary-color) !important;
}

.border-primary {
  border-color: var(--primary-color) !important;
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}