:root {
  --navy: #0a1128;
  --ice: #e1e8f0;
  --teal: #00afb9;
  --white: #ffffff;
  --text: #1a1b1e;
  --text-dim: #555c6e;
  --border: rgba(255, 255, 255, 0.1);
  --glass: rgba(255, 255, 255, 0.05);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: auto; }

body {
  background: var(--navy);
  color: var(--ice);
  font-family: 'Sora', sans-serif;
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 5%; }

/* CURSOR LENS */
.cursor-lens {
  position: fixed; top: 0; left: 0;
  width: 150px; height: 150px;
  border: 1px solid var(--teal);
  border-radius: 50%;
  pointer-events: none; z-index: 10000;
  transform: translate(-50%, -50%);
  background: rgba(0, 175, 185, 0.05);
  backdrop-filter: contrast(1.5) brightness(1.1) saturate(1.2);
  display: none;
}

@media (pointer: fine) { body:hover .cursor-lens { display: block; } }

/* HEADER */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; height: 100px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%; z-index: 1000;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 17, 40, 0.8);
  backdrop-filter: blur(10px);
}
.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: 0.2em; }
.logo span { color: var(--teal); }

.main-nav { display: flex; gap: 40px; }
.main-nav a { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ice); opacity: 0.6; transition: opacity 0.3s; }
.main-nav a:hover { opacity: 1; }

.btn-primary {
  background: var(--teal); color: var(--white);
  padding: 14px 30px; border-radius: 4px; font-weight: 600;
  text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.1em;
  box-shadow: 0 10px 30px rgba(0, 175, 185, 0.3);
  transition: all 0.3s var(--ease);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 15px 40px rgba(0, 175, 185, 0.4); }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 100px; }
.hero-content { padding: 0 5%; width: 100%; text-align: center; }
.hero-content h1 { font-size: clamp(3rem, 8vw, 7rem); font-weight: 800; line-height: 0.95; margin-bottom: 30px; }
.highlight { color: var(--teal); }
.hero-content p { font-size: 1.2rem; max-width: 600px; margin: 0 auto 60px; opacity: 0.7; }

.hero-image-wrap {
  position: relative; width: 1000px; height: 500px; margin: 0 auto;
  border-radius: 20px; overflow: hidden; perspective: 1000px;
  box-shadow: 0 50px 100px rgba(0,0,0,0.5);
}

/* COLLECTION */
.collection { padding: 150px 0; background: var(--ice); color: var(--text); }
.section-title { font-size: 3.5rem; font-weight: 800; margin-bottom: 80px; text-align: center; }
.section-title em { font-style: italic; color: var(--teal); font-weight: 300; }

.glass-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.glass-card {
  background: var(--white); padding: 20px; border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.05);
  transition: transform 0.1s; transform-style: preserve-3d;
}
.glass-img { aspect-ratio: 4/3; background: #f0f3f7; border-radius: 12px; overflow: hidden; margin-bottom: 25px; }
.glass-info h3 { font-size: 1.4rem; margin-bottom: 10px; }
.glass-info p { font-size: 0.9rem; color: var(--text-dim); }

/* EXAM */
.exam { padding: 150px 0; }
.exam-container { display: grid; grid-template-columns: 1.2fr 1fr; gap: 100px; align-items: center; }
.exam-img { height: 600px; border-radius: 20px; overflow: hidden; }
.tag { font-size: 0.75rem; color: var(--teal); text-transform: uppercase; font-weight: 700; letter-spacing: 0.2em; display: block; margin-bottom: 20px; }
.exam-text h2 { font-size: 3.5rem; font-weight: 800; margin-bottom: 30px; line-height: 1.1; }
.exam-text p { font-size: 1.1rem; opacity: 0.7; margin-bottom: 50px; }

.exam-steps { display: flex; flex-direction: column; gap: 30px; }
.step { display: flex; align-items: center; gap: 20px; }
.step span { width: 40px; height: 40px; border: 1px solid var(--teal); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; font-weight: 800; color: var(--teal); }
.step p { margin: 0; font-weight: 600; opacity: 1; }

/* CTA */
.cta { padding: 100px 0; }
.cta-card {
  background: linear-gradient(135deg, var(--teal) 0%, #0077b6 100%);
  padding: 100px 50px; border-radius: 30px; text-align: center;
  box-shadow: 0 30px 60px rgba(0, 175, 185, 0.3);
}
.cta-card h2 { font-size: 4rem; font-weight: 800; margin-bottom: 20px; }
.cta-card p { font-size: 1.2rem; margin-bottom: 40px; opacity: 0.9; }
.btn-white { background: var(--white); color: var(--teal); padding: 20px 50px; border-radius: 100px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; transition: transform 0.3s; display: inline-block; }
.btn-white:hover { transform: scale(1.05); }

/* FOOTER */
.footer { padding: 80px 0; border-top: 1px solid var(--border); }
.footer-flex { display: flex; justify-content: space-between; align-items: center; }
.f-brand { font-weight: 800; letter-spacing: 0.2em; }
.f-links { display: flex; gap: 30px; font-size: 0.8rem; opacity: 0.6; }
.f-copy { font-size: 0.8rem; opacity: 0.4; }

@media (max-width: 1024px) {
  .hero-image-wrap { width: 100%; height: auto; aspect-ratio: 16/9; }
  .glass-grid { grid-template-columns: 1fr 1fr; }
  .exam-container { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .glass-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 3rem; }
  .cta-card h2 { font-size: 2.5rem; }
}