:root {
  --bg: #f3f1ec;
  --paper: #fffcf8;
  --ink: #1c1917;
  --muted: #5f5852;
  --line: #e3ddd4;
  --accent: #0f6b4c;
  --accent-soft: #e7f3ed;
  --max: 68rem;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 3.4rem;
}

section,
.hero {
  scroll-margin-top: 3.4rem;
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 420px at 10% -10%, #efe7d8 0%, transparent 55%),
    var(--bg);
  color: var(--ink);
  font-family: "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  font-size: 1.02rem;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  gap: 1.1rem;
  align-items: center;
  padding: 0.7rem 1.4rem;
  background: rgba(255, 252, 248, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  overflow-x: auto;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.86rem;
  white-space: nowrap;
}

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

.brand {
  color: var(--ink) !important;
  font-weight: 700;
  margin-right: 0.4rem;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.2rem 1.4rem 4.5rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 2rem;
  align-items: end;
  padding: 1.2rem 0 0.4rem;
}

.who {
  margin: 0;
  color: var(--accent);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}

.hero h1 {
  margin: 0.15rem 0 0;
  font-size: 3.4rem;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.role {
  margin: 0.35rem 0 0;
  font-size: 1.25rem;
  font-weight: 650;
}

.lede {
  margin: 1.15rem 0 0.45rem;
  max-width: 38rem;
  font-size: 1.18rem;
  line-height: 1.55;
}

.sub { margin: 0; max-width: 38rem; }

.meta {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-links {
  list-style: none;
  margin: 0;
  padding: 1rem 1.1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.hero-links li + li {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.hero-links a {
  display: block;
  font-weight: 700;
  text-decoration: none;
}

.hero-links span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
}

section { margin-top: 3.2rem; }

h2 {
  margin: 0 0 0.4rem;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.section-lead {
  margin: 0 0 0.2rem;
  color: var(--muted);
}

.row {
  display: grid;
  grid-template-columns: 14.5rem 1fr;
  gap: 1.6rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--line);
}

.details h3 {
  margin: 0;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}

.details .role {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
}

.when {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.links {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin: 0.55rem 0 0;
}

.links a { font-size: 0.92rem; }

.quote { margin: 0 0 0.55rem; }

p { margin: 0.7rem 0; }

ul { margin: 0.45rem 0 0; padding-left: 1.15rem; }

.row > div:last-child,
.plain,
.story {
  max-width: 40rem;
}

.row li + li,
.plain li + li {
  margin-top: 0.75rem;
}

.result {
  display: inline-block;
  margin-top: 0.7rem;
  padding: 0.28rem 0.6rem;
  background: var(--accent-soft);
  color: #0c5a40;
  border-radius: 8px;
  font-weight: 650;
}

.results {
  margin-top: 0.9rem;
}

.results p {
  margin: 0;
  color: #0c5a40;
  font-weight: 650;
}

.results p + p {
  margin-top: 1.15rem;
}

.note {
  color: var(--muted);
  font-size: 0.92rem;
}

.plain { max-width: 52rem; }

.story p { max-width: 40rem; }

h3 { margin: 1.6rem 0 0.4rem; font-size: 1.08rem; }

.skill-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1rem;
}

.skill-grid div {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem 1rem;
}

.skill-grid h3 {
  margin: 0 0 0.25rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.skill-grid p { margin: 0; }

.certs { margin-top: 1.1rem; }

.timeline {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.timeline li {
  display: grid;
  grid-template-columns: 12.5rem 1fr;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--line);
}

.timeline li:first-child { border-top: 0; }

.timeline time {
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

footer p { margin: 0; }

footer .links { flex-direction: row; gap: 1rem; margin: 0; }

.dock {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.page-top {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(28, 25, 23, 0.12);
}

.chat-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(15, 107, 76, 0.28);
}

.chat-toggle-icon {
  width: 1.05rem;
  height: 1.05rem;
  background: #fff;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M4 4h16a1 1 0 0 1 1 1v14a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V5a1 1 0 0 1 1-1zm1 5h14v9H5V9zm0-3h5v2H5V6z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M4 4h16a1 1 0 0 1 1 1v14a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V5a1 1 0 0 1 1-1zm1 5h14v9H5V9zm0-3h5v2H5V6z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.chat-panel[hidden] {
  display: none;
}

.chat-panel {
  margin-top: 0;
  position: fixed;
  right: 1.1rem;
  bottom: 4.6rem;
  z-index: 5;
  display: flex;
  flex-direction: column;
  width: min(30rem, calc(100vw - 1.5rem));
  height: min(36rem, calc(100vh - 6.5rem));
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 16px 40px rgba(28, 25, 23, 0.16);
  overflow: hidden;
}

.chat-head {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.85rem 0.95rem;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.chat-head strong { display: block; }
.chat-head p { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.82rem; }

.chat-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.chat-tabs button {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  padding: 0.68rem 0.4rem;
  cursor: pointer;
}

.chat-tabs button.is-active {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.chat-close {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.chat-log {
  flex: 1;
  overflow: auto;
  padding: 0.85rem 1rem 1.1rem;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.chat-msg { margin: 0 0 0.9rem; }
.chat-msg p {
  margin: 0.55rem 0 0;
  white-space: pre-wrap;
  line-height: 1.65;
  font-size: 0.94rem;
}
.chat-title {
  font-weight: 700;
  line-height: 1.45;
}
.chat-who { font-size: 0.75rem; color: var(--muted); }

.chat-msg.user { text-align: right; }
.chat-msg.user p {
  display: inline-block;
  padding: 0.45rem 0.65rem;
  border-radius: 12px;
  background: var(--accent-soft);
}

.chat-follow-label {
  margin: 0.9rem 0 0.35rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.chat-related {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.chat-related button,
.chat-form button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.chat-related button {
  width: 100%;
  text-align: left;
  border-radius: 10px;
  padding: 0.5rem 0.7rem;
  font-size: 0.88rem;
  line-height: 1.45;
}

.chat-form {
  display: flex;
  gap: 0.4rem;
  padding: 0.7rem;
  border-top: 1px solid var(--line);
}

.chat-topics {
  border: 0;
  border-top: 1px solid var(--line);
  background: #fff;
  color: var(--accent);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0.62rem 0.9rem;
  cursor: pointer;
}

.chat-search { position: relative; }

.chat-suggest {
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: calc(100% - 0.15rem);
  z-index: 2;
  margin: 0;
  padding: 0.3rem;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(28, 25, 23, 0.12);
  max-height: 14rem;
  overflow: auto;
}

.chat-suggest[hidden] { display: none; }

.chat-suggest button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.86rem;
  line-height: 1.4;
  cursor: pointer;
}

.chat-suggest button.is-active,
.chat-suggest button:hover {
  background: var(--accent-soft);
}

.chat-form input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.8rem;
  font: inherit;
  font-size: 0.92rem;
}

.chat-form input::placeholder {
  color: var(--muted);
  font-size: 0.84rem;
}

.chat-form button {
  border-radius: 999px;
  padding: 0.28rem 0.75rem;
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 700;
}

@media (max-width: 800px) {
  .hero,
  .row,
  .timeline li,
  .skill-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 { font-size: 2.5rem; }

  .hero-links { margin-top: 0.4rem; }

  footer { flex-direction: column; }

  main { padding: 1.4rem 1rem 5.5rem; }

  .dock {
    right: max(0.85rem, env(safe-area-inset-right));
    bottom: max(0.85rem, env(safe-area-inset-bottom));
  }

  .chat-panel {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: auto;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .chat-head {
    align-items: center;
    padding: max(0.85rem, env(safe-area-inset-top)) 0.85rem 0.85rem 1rem;
  }

  .chat-head p { font-size: 0.9rem; }

  .chat-tabs button {
    min-height: 2.75rem;
    font-size: 1rem;
  }

  .chat-close {
    min-width: 2.75rem;
    min-height: 2.75rem;
    font-size: 1rem;
  }

  .chat-log { padding: 1rem 1rem 1.25rem; }

  .chat-msg p {
    font-size: 1.02rem;
    line-height: 1.75;
    overflow-wrap: anywhere;
  }

  .chat-related button {
    padding: 0.7rem 0.8rem;
    font-size: 0.98rem;
  }

  .chat-topics {
    padding: 0.8rem 0.9rem;
    font-size: 1rem;
  }

  .chat-form {
    padding: 0.65rem 0.75rem max(0.75rem, env(safe-area-inset-bottom));
  }

  .chat-form input {
    font-size: 1rem;
    padding: 0.7rem 0.9rem;
  }

  .chat-form input::placeholder { font-size: 0.92rem; }

  .chat-form button {
    padding: 0.7rem 0.95rem;
    font-size: 1rem;
  }

  .chat-suggest {
    max-height: min(16rem, 42dvh);
  }

  .chat-suggest button {
    padding: 0.7rem 0.75rem;
    font-size: 0.98rem;
  }
}

.highlights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.8rem; }
.highlights a { padding: 1rem; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); text-decoration: none; }
.highlights strong, .highlights span { display: block; }
.highlights strong { font-size: 1.18rem; }
.highlights span { margin-top: .25rem; font-size: .86rem; color: var(--muted); }
.chat-form input { min-width: 0; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
@media (max-width: 800px) { .highlights { grid-template-columns: 1fr; gap: .6rem; } }