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

:root{

  --bg:#eef2f7;
  --bg-secondary:#f7f9fc;

  --glass:rgba(255,255,255,0.72);

  --border:
  rgba(15,23,42,0.06);

  --text:#172033;

  --muted:#5f6b7a;

  --blue:#4b7fff;
  --blue-soft:#dbe7ff;

  --shadow:
  0 10px 30px rgba(31,50,81,0.08);

  --radius:28px;
}

html{
  scroll-behavior:smooth;
}

body{

  font-family:
  'Inter',sans-serif;

  background:

  radial-gradient(
  circle at top right,
  rgba(75,127,255,0.08),
  transparent 30%
  ),

  radial-gradient(
  circle at bottom left,
  rgba(120,180,255,0.08),
  transparent 25%
  ),

  var(--bg);

  color:var(--text);

  overflow-x:hidden;
}

/* =========================
BACKGROUND LIGHTING
========================= */

.background-gradient{

  position:fixed;

  inset:0;

  z-index:-10;

  background:

  radial-gradient(
  circle at 20% 20%,
  rgba(120,180,255,0.10),
  transparent 25%
  ),

  radial-gradient(
  circle at 80% 10%,
  rgba(75,127,255,0.08),
  transparent 30%
  ),

  radial-gradient(
  circle at 50% 100%,
  rgba(120,180,255,0.06),
  transparent 35%
  );
}

/* =========================
NAVIGATION
========================= */

header{

  position:sticky;

  top:0;

  z-index:1000;

  backdrop-filter:blur(20px);

  background:
  rgba(255,255,255,0.68);

  border-bottom:
  1px solid rgba(15,23,42,0.05);
}

nav{

  max-width:1300px;

  margin:auto;

  padding:24px 28px;

  display:flex;

  justify-content:space-between;

  align-items:center;
}

.logo{

  width:54px;
  height:54px;

  border-radius:50%;

  display:flex;

  align-items:center;

  justify-content:center;

  background:

  linear-gradient(
  135deg,
  rgba(75,127,255,0.14),
  rgba(255,255,255,0.8)
  );

  border:
  1px solid rgba(75,127,255,0.12);

  color:var(--blue);

  font-weight:700;

  box-shadow:
  0 10px 30px rgba(75,127,255,0.08);
}

nav ul{

  display:flex;

  gap:34px;

  list-style:none;
}

nav a{

  text-decoration:none;

  color:#334155;

  font-weight:500;

  transition:0.3s ease;
}

nav a:hover{

  color:var(--blue);
}

/* =========================
HERO
========================= */

.hero{

  min-height:100vh;

  max-width:1300px;

  margin:auto;

  padding:
  120px 28px 80px;

  display:grid;

  grid-template-columns:
  1.2fr 1fr;

  gap:80px;

  align-items:center;
}

.hero-tag{

  display:inline-flex;

  align-items:center;

  gap:10px;

  padding:12px 20px;

  border-radius:999px;

  background:
  rgba(255,255,255,0.72);

  border:
  1px solid rgba(75,127,255,0.10);

  color:var(--blue);

  font-size:0.82rem;

  letter-spacing:1px;

  margin-bottom:30px;

  backdrop-filter:blur(12px);
}

.hero h1{

  font-size:
  clamp(4rem,8vw,6.5rem);

  line-height:0.92;

  letter-spacing:-4px;

  margin-bottom:24px;

  font-weight:800;

  background:

  linear-gradient(
  to bottom,
  #172033,
  #365b9b
  );

  -webkit-background-clip:text;

  -webkit-text-fill-color:transparent;
}

.hero h2{

  font-size:1.45rem;

  color:#365b9b;

  font-weight:500;

  margin-bottom:28px;
}

.hero p{

  font-size:1.08rem;

  line-height:1.9;

  color:var(--muted);

  max-width:700px;
}

/* =========================
BUTTONS
========================= */

.hero-buttons{

  display:flex;

  gap:20px;

  margin-top:42px;
}

.primary-btn,
.secondary-btn{

  padding:16px 28px;

  border-radius:14px;

  text-decoration:none;

  font-weight:600;

  transition:
  transform 0.3s ease,
  box-shadow 0.3s ease;
}

.primary-btn{

  background:

  linear-gradient(
  135deg,
  #6ea8ff,
  #4b7fff
  );

  color:white;

  box-shadow:
  0 10px 30px rgba(75,127,255,0.18);
}

.secondary-btn{

  background:
  rgba(255,255,255,0.72);

  color:var(--text);

  border:
  1px solid rgba(15,23,42,0.06);

  backdrop-filter:blur(12px);
}

.primary-btn:hover,
.secondary-btn:hover{

  transform:
  translateY(-4px);
}

/* =========================
WORLD VISUAL
========================= */

.world-container{

  position:relative;

  width:480px;
  height:480px;

  margin:auto;
}

.world-glow{

  position:absolute;

  inset:0;

  border-radius:50%;

  background:

  radial-gradient(
  circle,
  rgba(75,127,255,0.12),
  transparent 70%
  );

  filter:blur(60px);
}

.world-image{

  position:absolute;

  width:100%;
  height:100%;

  object-fit:contain;

  opacity:0.92;

  animation:
  floatWorld 6s ease-in-out infinite;
}

.pen-icon{

  position:absolute;

  top:50%;
  left:50%;

  transform:
  translate(-50%,-50%);

  font-size:3rem;

  color:var(--blue);

  z-index:4;
}

/* =========================
ORBITS
========================= */

.orbit{

  position:absolute;

  border-radius:50%;

  border:
  1px dashed rgba(75,127,255,0.18);

  animation:
  spin 20s linear infinite;
}

.orbit-1{

  width:100%;
  height:100%;
}

.orbit-2{

  width:120%;
  height:120%;

  top:-10%;
  left:-10%;

  animation-duration:30s;
}

/* =========================
LANGUAGES
========================= */

.language{

  position:absolute;

  padding:10px 18px;

  border-radius:999px;

  background:
  rgba(255,255,255,0.72);

  border:
  1px solid rgba(75,127,255,0.10);

  backdrop-filter:blur(12px);

  font-size:0.9rem;

  color:#334155;

  box-shadow:
  0 10px 30px rgba(31,50,81,0.06);
}

.pending{

  opacity:0.55;
}

.english{
  top:40px;
  left:180px;
}

.korean{
  right:-10px;
  top:180px;
}

.creole{
  bottom:30px;
  left:170px;
}

.spanish{
  left:-20px;
  top:170px;
}

.french{
  right:40px;
  bottom:80px;
}

/* =========================
SECTIONS
========================= */

.section{

  max-width:1300px;

  margin:auto;

  padding:120px 28px;
}

.section-title span{

  color:var(--blue);

  font-size:0.8rem;

  letter-spacing:2px;

  font-weight:600;
}

.section-title h2{

  font-size:3rem;

  margin-top:14px;

  margin-bottom:60px;

  max-width:700px;

  line-height:1.1;
}

/* =========================
GLASS CARDS
========================= */

.glass-grid,
.books-grid{

  display:grid;

  grid-template-columns:
  repeat(auto-fit,minmax(280px,1fr));

  gap:28px;
}

.glass-card,
.book-card,
.contact-card{

  position:relative;

  overflow:hidden;

  background:var(--glass);

  backdrop-filter:blur(20px);

  border:
  1px solid var(--border);

  border-radius:var(--radius);

  padding:36px;

  box-shadow:var(--shadow);

  transition:
  transform 0.35s ease,
  box-shadow 0.35s ease,
  border 0.35s ease;
}

.glass-card::before,
.book-card::before,
.contact-card::before{

  content:"";

  position:absolute;

  inset:0;

  background:

  linear-gradient(
  135deg,
  rgba(255,255,255,0.35),
  transparent
  );

  pointer-events:none;
}

.glass-card:hover,
.book-card:hover{

  transform:
  translateY(-8px);

  border:
  1px solid rgba(75,127,255,0.18);

  box-shadow:

  0 20px 40px rgba(31,50,81,0.10),

  0 0 30px rgba(75,127,255,0.05);
}

.glass-card h3,
.book-card h3{

  margin-bottom:18px;

  font-size:1.35rem;
}

.glass-card p,
.book-card p{

  color:var(--muted);

  line-height:1.85;
}

.book-card a{

  display:inline-block;

  margin-top:24px;

  color:var(--blue);

  text-decoration:none;

  font-weight:600;
}

/* =========================
IMPACT
========================= */

.impact-card{

  text-align:center;
}

.impact-card h3{

  font-size:3.8rem;

  margin-bottom:16px;

  color:var(--blue);

  text-shadow:
  0 10px 30px rgba(75,127,255,0.12);
}

/* =========================
SKILLS
========================= */

.skills-wrapper{

  display:flex;

  flex-direction:column;

  gap:50px;
}

.skill-group h3{

  margin-bottom:24px;

  font-size:1.3rem;
}

.skill-pills{

  display:flex;

  flex-wrap:wrap;

  gap:14px;
}

.skill-pills span{

  padding:14px 18px;

  border-radius:999px;

  background:
  rgba(255,255,255,0.75);

  border:
  1px solid rgba(15,23,42,0.05);

  transition:0.3s ease;

  color:#334155;
}

.skill-pills span:hover{

  transform:
  translateY(-2px);

  border:
  1px solid rgba(75,127,255,0.22);

  background:
  rgba(219,231,255,0.55);
}

/* =========================
BOOKS
========================= */

.book-year{

  display:inline-block;

  margin-bottom:18px;

  font-size:0.82rem;

  letter-spacing:1px;

  color:#64748b;
}

/* =========================
CONTACT
========================= */

.contact-card{

  text-align:center;

  padding:
  80px 40px;
}

.contact-card h2{

  font-size:3rem;

  margin-bottom:24px;
}

.contact-card p{

  color:var(--muted);

  max-width:700px;

  margin:
  0 auto 40px;

  line-height:1.8;
}

.contact-links{

  display:flex;

  justify-content:center;

  flex-wrap:wrap;

  gap:20px;
}

.contact-links a{

  padding:14px 22px;

  border-radius:14px;

  text-decoration:none;

  background:
  rgba(255,255,255,0.75);

  border:
  1px solid rgba(15,23,42,0.05);

  color:var(--blue);

  font-weight:600;

  transition:0.3s ease;
}

.contact-links a:hover{

  transform:
  translateY(-3px);

  border:
  1px solid rgba(75,127,255,0.18);
}

/* =========================
FOOTER
========================= */

footer{

  text-align:center;

  padding:40px;

  color:#64748b;

  font-size:0.92rem;
}

/* =========================
ANIMATIONS
========================= */

@keyframes spin{

  from{
    transform:rotate(0deg);
  }

  to{
    transform:rotate(360deg);
  }
}

@keyframes floatWorld{

  0%{
    transform:translateY(0px);
  }

  50%{
    transform:translateY(-12px);
  }

  100%{
    transform:translateY(0px);
  }
}

/* =========================
RESPONSIVE
========================= */

@media(max-width:1100px){

  .hero{

    grid-template-columns:1fr;

    text-align:center;
  }

  .hero p{

    margin-inline:auto;
  }

  .hero-buttons{

    justify-content:center;
  }

  .world-container{

    width:360px;
    height:360px;
  }
}

@media(max-width:768px){

  nav ul{
    display:none;
  }

  .hero{

    padding-top:140px;
  }

  .hero h1{

    font-size:3.2rem;
  }

  .section-title h2,
  .contact-card h2{

    font-size:2.2rem;
  }

  .hero-buttons{

    flex-direction:column;
  }

  .world-container{

    width:280px;
    height:280px;
  }
  .expertise-grid-fixed {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
  pre{

  margin-top:24px;

  padding:24px;

  border-radius:20px;

  overflow-x:auto;

  background:#0f172a;

  color:#dbe7ff;

  font-size:0.95rem;

  line-height:1.7;

  border:
  1px solid rgba(255,255,255,0.06);
}

code{
  font-family:
  Consolas,
  monospace;
}
}
```