:root {
  --primary: #007aff;
  /* Apple-style vibrant blue */
  --accent: #5856d6;
  --bg-light: #f5f5f7;
  --white: #ffffff;
  --text-dark: #1d1d1f;
  --text-gray: #86868b;
  --glass: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.1);
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1.5rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background: var(--glass);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-dark);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-gray);
  margin-left: 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  position: relative;
  height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10%;
  overflow: hidden;
  background: var(--white);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('hero_bright.png') no-repeat center center/cover;
  opacity: 0.8;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background: rgba(0, 122, 255, 0.1);
  color: var(--primary);
  padding: 0.5rem 1.5rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-gray);
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--primary);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 122, 255, 0.3);
}

/* Section Common */
section {
  padding: 10rem 10%;
}

.section-label {
  display: block;
  text-align: center;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 4rem;
}

/* Experience List */
.exp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.exp-card {
  background: var(--white);
  padding: 3rem;
  border-radius: 24px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, 0.02);
}

.exp-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.exp-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
}

/* Services 4-Box Grid */
.services-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--white);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.4s;
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.service-card:hover {
  transform: translateY(-10px);
}

.service-img {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center;
}

.service-info {
  padding: 2rem;
}

.service-info h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.service-info ul {
  list-style: none;
}

.service-info li {
  font-size: 0.9rem;
  color: var(--text-gray);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-info li::before {
  content: "•";
  color: var(--primary);
}

/* Contact Box */
.contact-banner {
  background: var(--white);
  padding: 6rem;
  border-radius: 40px;
  text-align: center;
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  section {
    padding: 6rem 5%;
  }

  .contact-banner {
    padding: 3rem 1.5rem;
  }
}