:root {
  --ink: #111111;
  --text: #2e3438;
  --muted: #657176;
  --line: #dde3e1;
  --paper: #ffffff;
  --cream: #f8f4ec;
  --soft: #f4f6f3;
  --accent: #e8ec64;
  --accent-dark: #c9cf3e;
  --bluegray: #6e96a1;
  --dark-panel: #222222;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.7;
  word-break: keep-all;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.15;
}

.brand-mark {
  font-size: 13px;
  letter-spacing: 0;
}

.brand-name {
  font-size: 22px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.site-nav a:hover {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 8px 12px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.section {
  padding: 96px 0;
}

.muted {
  background: var(--soft);
}

.hero {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: 70px 0 76px;
  background: var(--cream);
  border-bottom: 1px solid var(--ink);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(430px, 0.86fr) minmax(360px, 1fr);
  gap: 54px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--bluegray);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Noto Serif KR", serif;
  font-size: clamp(41px, 5.3vw, 81px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 20px;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.22;
  letter-spacing: 0;
}

h3 {
  color: var(--ink);
  font-size: 22px;
  line-height: 1.35;
}

.hero-lead {
  max-width: 600px;
  margin-bottom: 32px;
  color: #3c4548;
  font-size: 20px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  font-weight: 900;
}

.btn.primary {
  background: var(--ink);
  color: #ffffff;
}

.btn.secondary {
  background: var(--accent);
  color: var(--ink);
  border-color: var(--accent-dark);
}

.hero-media {
  position: relative;
  margin-right: min(-8vw, -36px);
}

.hero-media img {
  position: relative;
  width: 100%;
  max-height: 620px;
  object-fit: contain;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 68px;
  align-items: start;
}

.split p {
  max-width: 710px;
}

.profile-panel,
.career-box,
.contact-card,
.target-grid article,
.book-card,
.tab-panel {
  border: 1px solid var(--line);
  background: var(--paper);
}

.profile-panel {
  overflow: hidden;
  padding: 0;
  border-top: 6px solid var(--bluegray);
}

.profile-photo {
  width: 100%;
  aspect-ratio: 4 / 4.4;
  object-fit: cover;
  object-position: 50% 18%;
  border-bottom: 1px solid var(--line);
}

.profile-content {
  padding: 28px 32px 32px;
}

.profile-title {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 900;
}

.plain-list,
.career-box ul,
.tab-panel ul {
  margin: 0;
  padding-left: 20px;
}

.plain-list li,
.career-box li,
.tab-panel li {
  margin: 8px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 36px;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.book-card {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 22px;
  padding: 24px;
}

.book-card img {
  width: 230px;
  aspect-ratio: 1.3 / 1;
  object-fit: contain;
  border: 0;
  background: transparent;
}

.book-card a {
  display: inline-block;
  margin-top: 8px;
  color: var(--ink);
  font-weight: 900;
  border-bottom: 2px solid var(--accent-dark);
}

.tabs {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 26px;
  align-items: start;
}

.tab-buttons {
  display: grid;
  gap: 8px;
}

.tab-button {
  width: 100%;
  min-height: 50px;
  padding: 0 16px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--text);
  font: inherit;
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}

.tab-button.active,
.tab-button:hover {
  background: var(--ink);
  color: #ffffff;
  border-color: var(--ink);
}

.tab-panel {
  display: none;
  min-height: 352px;
  padding: 36px;
}

.tab-panel.active {
  display: block;
}

.tab-panel p {
  max-width: 720px;
  font-size: 18px;
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.target-grid article {
  padding: 28px;
  border-top: 5px solid var(--accent);
}

.career-box {
  padding: 32px;
  color: #ffffff;
  background: var(--dark-panel);
  border-color: var(--dark-panel);
}

.career-box h3 {
  color: #ffffff;
}

.review-tabs {
  display: grid;
  gap: 26px;
}

.review-tab-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.review-tab-buttons .tab-button {
  width: auto;
  min-width: 156px;
  text-align: center;
}

.review-panel {
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.review-card {
  min-height: 280px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--paper);
  border-top: 5px solid var(--bluegray);
}

.review-card.featured {
  grid-column: span 2;
  border-top-color: var(--accent-dark);
  background: #fbfcf4;
}

.review-label {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 5px 10px;
  color: var(--ink);
  background: var(--accent);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.3;
}

.review-card h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.review-card p:last-child {
  margin-bottom: 0;
}

.career-strip {
  margin-top: 32px;
}

.career-strip ul {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px 24px;
}

.contact-section {
  color: #ffffff;
  background: var(--dark-panel);
}

.contact-section h2,
.contact-section .section-kicker {
  color: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 64px;
  align-items: start;
}

.contact-card {
  padding: 30px;
  color: var(--ink);
}

.contact-card p {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  margin-bottom: 12px;
}

.contact-card a {
  color: var(--text);
  overflow-wrap: anywhere;
}

.site-footer {
  padding: 28px 0;
  color: #ffffff;
  background: #111111;
  border-top: 1px solid #333333;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  font-size: 14px;
}

.footer-inner p,
.footer-meta p {
  margin: 0;
}

.footer-meta {
  display: grid;
  gap: 4px;
  text-align: right;
}

.footer-meta a {
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    padding: 16px 20px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 20px 20px;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 0;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: auto;
    padding: 62px 0 70px;
  }

  .hero-grid,
  .split,
  .tabs,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-media {
    margin-right: 0;
  }

  .book-grid,
  .target-grid,
  .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .review-card.featured {
    grid-column: span 2;
  }

  .career-strip ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(100% - 28px, var(--max));
  }

  .brand-name {
    font-size: 20px;
  }

  h1 {
    font-size: 39px;
  }

  .hero-lead,
  .tab-panel p {
    font-size: 17px;
  }

  .hero-media img {
    width: min(100%, 520px);
    margin-left: auto;
  }

  .book-grid,
  .target-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .review-card.featured {
    grid-column: span 1;
  }

  .book-card {
    grid-template-columns: 152px 1fr;
    padding: 18px;
  }

  .book-card img {
    width: 152px;
  }

  .tab-buttons {
    grid-template-columns: 1fr;
  }

  .tab-panel,
  .profile-panel,
  .career-box,
  .contact-card,
  .review-card,
  .target-grid article {
    padding: 24px;
  }

  .review-tab-buttons .tab-button {
    width: 100%;
  }

  .career-strip ul {
    grid-template-columns: 1fr;
  }

  .contact-card p {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .footer-inner {
    flex-direction: column;
  }

  .footer-meta {
    text-align: left;
  }
}