/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  --font:
    Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-sign: "Parisienne", cursive;

  --blue: #2563eb;
  --gray-light: #dee2e6;
  --gray-bg: #f8f9fa;
  --text: #212529;
  --text-muted: #6c757d;
  --link: #3c78d8;
  --link-hover: #2558b0;
  --white: #ffffff;
  --border: #dee2e6;

  --container-max: 860px;
  --container-px: 24px;
  --header-h: 52px;
}

/* ===========================
   Body
   =========================== */
body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  background: var(--white);
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-h);
}

a {
  color: var(--link);
  text-decoration: none;
}
a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

p {
  margin: 0 0 1rem;
}
p:last-child {
  margin-bottom: 0;
}

/* ===========================
   Container
   =========================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* ===========================
   고정 헤더
   =========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none !important;
  transition: color 0.15s ease;
  padding: 6px 0;
}

.header-nav:hover {
  color: var(--blue);
  text-decoration: none !important;
}

.header-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--blue);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.header-nav-arrow {
  font-size: 0.9rem;
  line-height: 1;
}

/* ===========================
   Resume Section
   =========================== */
.resume-section {
  margin-top: 48px;
}

/* ===========================
   INTRODUCE 레이아웃
   (좌: 레이블 / 우: 본문 — 이미지 참조)
   =========================== */

.section-header {
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.section-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 10px;
}

.introduce-layout {
  display: flex;
  gap: 0;
  align-items: flex-start;
  margin-bottom: 60px;
}

/* 왼쪽 레이블 열 */
.introduce-label {
  width: 120px;
  flex-shrink: 0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text);
  text-align: right;
  padding-top: 4px;
  padding-bottom: 2px;
  line-height: 1.8;
  border-bottom: 1px solid var(--text);
}

/* 오른쪽 본문 열 */
.introduce-content {
  flex: 1;
  min-width: 0;
  padding-left: 24px;
}

.introduce-content p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 1.2rem;
}

.introduce-content p:last-of-type {
  margin-bottom: 0;
}

/* ===========================
   Footer
   =========================== */
.resume-footer {
  margin-top: 64px;
  padding-bottom: 32px;
}

.footer-text {
  padding: 14px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-text a {
  color: var(--text-muted);
}
.footer-text a:hover {
  color: var(--blue);
  text-decoration: underline;
}

/* ===========================
   Responsive — Tablet (≤ 768px)
   =========================== */
@media (max-width: 768px) {
  :root {
    --container-px: 18px;
  }

  .introduce-layout {
    flex-direction: column;
    gap: 12px;
    margin-bottom: 70px;
  }

  .introduce-label {
    width: auto;
    text-align: left;
    padding-right: 0;
    padding-top: 0;
  }

  .introduce-content {
    border-left: none;
    padding-left: 0;
    padding-top: 16px;
  }
}

/* ===========================
   Responsive — Mobile (≤ 480px)
   =========================== */
@media (max-width: 480px) {
  :root {
    --container-px: 14px;
  }

  .resume-section {
    margin-top: 40px;
  }

  .section-header h2 {
    font-size: 1.2rem;
  }

  .introduce-content p {
    font-size: 0.9rem;
  }

  .introduce-sign {
    font-size: 1.5rem;
  }
}

/* ===========================
   Print
   =========================== */
@media print {
  .site-header {
    display: none;
  }
  body {
    padding-top: 0;
  }
  a {
    color: var(--text);
  }
}