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

:root {
  --primary: #0066cc;
  --primary-dark: #0052a3;
  --secondary: #f0f7ff;
  --text: #1a1a1a;
  --text-light: #666666;
  --border: #e5e5e5;
  --white: #ffffff;
  --shadow: rgba(0, 0, 0, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background-color: var(--white);
  box-shadow: 0 2px 10px var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
}

.logo .icon {
  width: 32px;
  height: 32px;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--white) 100%);
  padding: 6rem 0;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
}

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

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

/* Services Section */
.services {
  padding: 5rem 0;
  background-color: var(--white);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px var(--shadow);
  border-color: var(--primary);
}

.service-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  color: var(--primary);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}

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

/* About Section */
.about {
  padding: 5rem 0;
  background-color: var(--secondary);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.about-features {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.feature span {
  font-weight: 600;
  color: var(--text);
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background-color: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
}

.contact-icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.contact-item p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.875rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.contact-form textarea {
  resize: vertical;
}

/* Footer */
.footer {
  background-color: var(--text);
  color: var(--white);
  padding: 2rem 0;
  text-align: center;
}

/* Modern birthday animation with gradient text, glass morphism, and confetti */
.birthday-animation {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  padding: 5rem 0;
  text-align: center;
  overflow: hidden;
  position: relative;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.birthday-animation::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: pulse-bg 3s ease-in-out infinite;
}

@keyframes pulse-bg {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

.confetti-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.confetti {
  position: absolute;
  width: 10px;
  height: 10px;
  background: #ffd700;
  top: -10px;
  opacity: 0;
  animation: confetti-fall 3s linear infinite;
}

@keyframes confetti-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

.birthday-content {
  position: relative;
  z-index: 10;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 3rem 4rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  animation: float 3s ease-in-out infinite;
}

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

.birthday-text {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(45deg, #fff, #ffd700, #fff, #ff69b4);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 3s ease infinite;
  margin-bottom: 1.5rem;
  letter-spacing: 2px;
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
}

@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.sparkles {
  display: flex;
  justify-content: center;
  gap: 2rem;
  font-size: 2.5rem;
}

.sparkle {
  display: inline-block;
  animation: sparkle-rotate 2s ease-in-out infinite;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.8));
}

.sparkle:nth-child(1) {
  animation-delay: 0s;
}
.sparkle:nth-child(2) {
  animation-delay: 0.2s;
}
.sparkle:nth-child(3) {
  animation-delay: 0.4s;
}
.sparkle:nth-child(4) {
  animation-delay: 0.6s;
}
.sparkle:nth-child(5) {
  animation-delay: 0.8s;
}

@keyframes sparkle-rotate {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
  }
  25% {
    transform: scale(1.3) rotate(10deg);
  }
  50% {
    transform: scale(1) rotate(0deg);
  }
  75% {
    transform: scale(1.3) rotate(-10deg);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

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

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

  .about-features {
    flex-direction: column;
    gap: 1rem;
  }

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

  /* Responsive adjustments for birthday animation */
  .birthday-content {
    padding: 2rem 1.5rem;
  }

  .birthday-text {
    font-size: 1.75rem;
    letter-spacing: 1px;
  }

  .sparkles {
    font-size: 1.75rem;
    gap: 1rem;
  }
}