/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --primary-color: #007aff;
  --primary-dark: #0056cc;
  --secondary-color: #34c759;
  --accent-color: #ff9500;
  --error-color: #ff3b30;
  --warning-color: #ffcc00;
  
  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* ===== RESET & BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-16);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--gray-900);
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== BUTTONS ===== */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
}

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

.btn-large {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.logo-img {
  width: 40px;
  height: 40px;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-link {
  font-weight: 500;
  color: var(--gray-700);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width var(--transition-normal);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--gray-700);
  transition: all var(--transition-normal);
}

/* ===== HERO SECTION ===== */
.hero {
  padding: 120px 0 var(--spacing-20);
  background: linear-gradient(135deg, #f8faff 0%, #e8f4fd 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('./assets/hero-pattern.svg') no-repeat center center;
  background-size: cover;
  opacity: 0.05;
  z-index: 1;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
  position: relative;
  z-index: 2;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-6);
  color: var(--gray-900);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  margin-bottom: var(--spacing-8);
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-10);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.download-badges {
  display: flex;
  gap: var(--spacing-4);
}

.badge-link img {
  height: 50px;
  transition: transform var(--transition-normal);
}

.badge-link:hover img {
  transform: scale(1.05);
}

/* ===== HERO VISUAL ===== */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  background: linear-gradient(145deg, #f0f0f0, #ffffff);
  border-radius: 30px;
  padding: 20px;
  box-shadow: var(--shadow-xl);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  object-fit: cover;
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.floating-card {
  position: absolute;
  background: var(--white);
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  animation: float 3s ease-in-out infinite;
}

.glucose-card {
  top: 10%;
  right: -20%;
  color: var(--error-color);
  animation-delay: 0s;
}

.ai-card {
  top: 50%;
  left: -25%;
  color: var(--primary-color);
  animation-delay: 1s;
}

.bluetooth-card {
  bottom: 20%;
  right: -15%;
  color: var(--secondary-color);
  animation-delay: 2s;
}

/* ===== FEATURES SECTION ===== */
.features {
  padding: var(--spacing-20) 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-8);
}

.feature-card {
  background: var(--white);
  padding: var(--spacing-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-100);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-6);
}

.feature-icon i {
  font-size: var(--font-size-2xl);
  color: var(--white);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--gray-900);
}

.feature-description {
  color: var(--gray-600);
  margin-bottom: var(--spacing-6);
  line-height: 1.6;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  color: var(--gray-700);
  margin-bottom: var(--spacing-2);
  font-size: var(--font-size-sm);
}

/* ===== HOW IT WORKS SECTION ===== */
.how-it-works {
  padding: var(--spacing-20) 0;
  background: var(--gray-50);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-8);
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0 auto var(--spacing-6);
}

.step h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
  color: var(--gray-900);
}

.step p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .phone-mockup {
    width: 250px;
    height: 500px;
  }
  
  .floating-card {
    font-size: var(--font-size-xs);
    padding: var(--spacing-2) var(--spacing-3);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-container {
    grid-template-columns: 1fr;
  }
}

/* ===== PRICING SECTION ===== */
.pricing {
  padding: var(--spacing-20) 0;
  background: var(--white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-16);
}

.pricing-card {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
}

.pricing-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--gray-900);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--spacing-4);
}

.price-currency {
  font-size: var(--font-size-xl);
  color: var(--gray-600);
}

.price-amount {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  color: var(--primary-color);
}

.price-period {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
}

.pricing-description {
  color: var(--gray-600);
  text-align: center;
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-8);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
  font-size: var(--font-size-base);
}

.pricing-features .fa-check {
  color: var(--secondary-color);
}

.pricing-features .fa-times {
  color: var(--gray-400);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.pricing-guarantee {
  text-align: center;
  padding: var(--spacing-8);
  background: var(--gray-50);
  border-radius: var(--radius-xl);
}

.guarantee-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  max-width: 600px;
  margin: 0 auto;
}

.guarantee-content i {
  font-size: var(--font-size-2xl);
  color: var(--secondary-color);
}

.guarantee-content h4 {
  margin-bottom: var(--spacing-2);
  color: var(--gray-900);
}

.guarantee-content p {
  color: var(--gray-600);
  margin: 0;
}

/* ===== FAQ SECTION ===== */
.faq {
  padding: var(--spacing-20) 0;
  background: var(--gray-50);
}

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

.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-4);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  padding: var(--spacing-6);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--white);
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin: 0;
}

.faq-question i {
  color: var(--primary-color);
  transition: transform var(--transition-normal);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer p {
  padding: 0 var(--spacing-6) var(--spacing-6);
  color: var(--gray-600);
  line-height: 1.7;
  margin: 0;
}

/* ===== FEEDBACK SECTION ===== */
.feedback {
  padding: var(--spacing-20) 0;
  background: var(--white);
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-16);
}

.feedback-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  transition: all var(--transition-normal);
  opacity: 0;
  transform: translateY(20px);
}

.feedback-card.show {
  opacity: 1;
  transform: translateY(0);
}

.feedback-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feedback-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-4);
}

.feedback-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.user-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.user-name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--gray-900);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.verified-badge {
  color: var(--secondary-color);
  font-size: var(--font-size-sm);
}

.user-plan {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.feedback-rating {
  text-align: right;
}

.stars {
  color: var(--warning-color);
  font-size: var(--font-size-lg);
}

.rating-number {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-top: var(--spacing-1);
}

.feedback-message {
  color: var(--gray-700);
  line-height: 1.6;
  margin-bottom: var(--spacing-4);
}

.feedback-date {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

/* ===== FEEDBACK FORM ===== */
.feedback-form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--gray-50);
  padding: var(--spacing-8);
  border-radius: var(--radius-2xl);
}

.feedback-form-container h3 {
  text-align: center;
  margin-bottom: var(--spacing-6);
  color: var(--gray-900);
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: 600;
  color: var(--gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-3);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.rating-input {
  display: flex;
  gap: var(--spacing-2);
}

.rating-input .star {
  font-size: var(--font-size-2xl);
  color: var(--gray-300);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.rating-input .star:hover,
.rating-input .star.active {
  color: var(--warning-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
  padding: var(--spacing-20) 0;
  background: var(--gray-50);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.contact-item i {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
}

.contact-item h4 {
  margin-bottom: var(--spacing-1);
  color: var(--gray-900);
}

.contact-item p {
  color: var(--gray-600);
  margin: 0;
}

.contact-form {
  background: var(--white);
  padding: var(--spacing-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-8);
}

.footer-section h4 {
  margin-bottom: var(--spacing-4);
  color: var(--white);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-2);
}

.footer-section ul li a {
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--white);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.footer-logo img {
  width: 40px;
  height: 40px;
}

.footer-logo span {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
}

.footer-section p {
  color: var(--gray-400);
  line-height: 1.6;
  margin-bottom: var(--spacing-6);
}

.social-links {
  display: flex;
  gap: var(--spacing-4);
}

.social-links a {
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  color: var(--gray-400);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.social-links a:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--spacing-8);
  text-align: center;
  color: var(--gray-400);
}

/* ===== MODALS ===== */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal.show {
  opacity: 1;
}

.modal-content {
  background-color: var(--white);
  margin: 5% auto;
  padding: var(--spacing-8);
  border-radius: var(--radius-2xl);
  width: 90%;
  max-width: 500px;
  position: relative;
  transform: translateY(-20px);
  transition: transform var(--transition-normal);
}

.modal.show .modal-content {
  transform: translateY(0);
}

.video-modal {
  max-width: 800px;
}

.video-container {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
}

.close {
  position: absolute;
  right: var(--spacing-4);
  top: var(--spacing-4);
  color: var(--gray-500);
  font-size: var(--font-size-2xl);
  font-weight: bold;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.close:hover {
  color: var(--gray-900);
}

.modal h2 {
  margin-bottom: var(--spacing-6);
  color: var(--gray-900);
  text-align: center;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.auth-link {
  text-align: center;
  margin-top: var(--spacing-4);
  color: var(--gray-600);
}

.auth-link a {
  color: var(--primary-color);
  font-weight: 600;
}

/* ===== CHATBOT ===== */
.chatbot {
  position: fixed;
  bottom: var(--spacing-4);
  right: var(--spacing-4);
  width: 350px;
  background: var(--white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  z-index: 1500;
  transition: all var(--transition-normal);
}

.chatbot-header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  padding: var(--spacing-4);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
}

.chatbot-header i:first-child {
  margin-right: var(--spacing-2);
}

.chatbot-body {
  display: none;
  height: 400px;
  display: flex;
  flex-direction: column;
}

.chatbot.open .chatbot-body {
  display: flex;
}

.chatbot-messages {
  flex: 1;
  padding: var(--spacing-4);
  overflow-y: auto;
  max-height: 300px;
}

.message {
  margin-bottom: var(--spacing-4);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.message.show {
  opacity: 1;
  transform: translateY(0);
}

.message-content {
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--radius-lg);
  max-width: 80%;
  word-wrap: break-word;
}

.bot-message .message-content {
  background: var(--gray-100);
  color: var(--gray-800);
  margin-right: auto;
}

.user-message .message-content {
  background: var(--primary-color);
  color: var(--white);
  margin-left: auto;
}

.message-time {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  margin-top: var(--spacing-1);
  text-align: right;
}

.bot-message .message-time {
  text-align: left;
}

.typing-indicator .message-content {
  background: var(--gray-100);
}

.typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.typing-dots span {
  width: 8px;
  height: 8px;
  background: var(--gray-500);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

.chatbot-input {
  display: flex;
  padding: var(--spacing-4);
  border-top: 1px solid var(--gray-200);
  gap: var(--spacing-2);
}

.chatbot-input input {
  flex: 1;
  padding: var(--spacing-3);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
}

.chatbot-input button {
  background: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--spacing-3);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.chatbot-input button:hover {
  background: var(--primary-dark);
}

/* ===== ANIMATIONS ===== */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes typing {
  0%, 60%, 100% { transform: scale(1); opacity: 0.5; }
  30% { transform: scale(1.2); opacity: 1; }
}

.animate-in {
  animation: slideInUp 0.6s ease-out forwards;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== NOTIFICATIONS ===== */
.notification {
  position: fixed;
  top: var(--spacing-4);
  right: var(--spacing-4);
  z-index: 2500;
  max-width: 400px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: slideInRight 0.3s ease-out;
}

.notification-success {
  background: var(--secondary-color);
  color: var(--white);
}

.notification-warning {
  background: var(--warning-color);
  color: var(--gray-900);
}

.notification-error {
  background: var(--error-color);
  color: var(--white);
}

.notification-info {
  background: var(--primary-color);
  color: var(--white);
}

.notification-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4);
}

.notification-content button {
  background: none;
  border: none;
  color: inherit;
  font-size: var(--font-size-lg);
  cursor: pointer;
  padding: 0;
  margin-left: var(--spacing-4);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ===== RESPONSIVE DESIGN UPDATES ===== */
@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .chatbot {
    width: 90%;
    right: 5%;
    left: 5%;
  }

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

  .guarantee-content {
    flex-direction: column;
    text-align: center;
  }
}