:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --primary: #1f6feb;
  --primary-dark: #164db8;
  --text: #1d2433;
  --muted: #58657a;
  --line: #e7edf7;
  --shadow: 0 18px 45px rgba(24, 44, 86, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Noto Sans KR', sans-serif;
  background: linear-gradient(135deg, #edf5ff 0%, #f7f8fc 100%);
  color: var(--text);
}

.page-shell {
  max-width: 960px;
  margin: 48px auto;
  padding: 0 20px 40px;
}

.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 100%);
  color: white;
  padding: 52px 36px 40px;
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.profile-badge {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.1;
}

.subtitle {
  margin-top: 12px;
  font-size: 1.08rem;
  opacity: 0.9;
}

.short-intro {
  margin: 14px 0 0;
  font-size: 1.02rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: -0.02em;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.tag-row span {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
}

.content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 26px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.04);
  padding: 26px 24px;
}

.card h2 {
  margin: 0 0 18px;
  font-size: 1.35rem;
  color: var(--text);
}

.card p,
.card li {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.intro {
  grid-column: 1 / -1;
}

.intro p {
  margin: 0 0 14px;
}

.interests ul {
  margin: 0;
  padding-left: 20px;
}

.education p,
.contact p {
  margin: 0;
}

.contact a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

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

@media (max-width: 700px) {
  .page-shell {
    margin: 20px auto 32px;
    padding: 0 14px 24px;
  }

  .hero {
    padding: 34px 22px 28px;
    border-radius: 20px;
  }

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

  .card {
    border-radius: 18px;
    padding: 22px 18px;
  }
}