/* ============================================================
   포트폴리오 전용 페이지 (독립 풀페이지)
   시안: docs/Portfolio design — 고정 네이비 사이드바 + 원페이지
   ============================================================ */

:root {
  --pf-side-w: 150px;

  /* 사이드바 — 라이트/다크 공통 네이비 */
  --pf-side-bg: #0e1c47;
  --pf-side-bg2: #0b1638;
  --pf-side-text: rgba(255, 255, 255, .92);
  --pf-side-muted: rgba(255, 255, 255, .40);
  --pf-side-num: #6f8dff;
  --pf-side-line: rgba(255, 255, 255, .12);
}

/* ── 다크(기본) ── */
html[data-theme="dark"] {
  --pf-bg: #0c1734;
  --pf-bg2: #0a1330;
  --pf-text: #c3cfec;
  --pf-heading: #eaf0ff;
  --pf-muted: #7e8cb4;
  --pf-accent: #5b8cff;
  --pf-name: #6f9bff;
  --pf-card: rgba(255, 255, 255, .045);
  --pf-card-brd: rgba(255, 255, 255, .09);
  --pf-line: rgba(255, 255, 255, .13);
  --pf-track: rgba(255, 255, 255, .08);
  --pf-chip: rgba(111, 155, 255, .14);
  --pf-cube: rgba(255, 255, 255, .10);
}

/* ── 라이트 ── */
html[data-theme="light"] {
  --pf-bg: #eef1f8;
  --pf-bg2: #e7ecf6;
  --pf-text: #47527b;
  --pf-heading: #17285c;
  --pf-muted: #8b96b8;
  --pf-accent: #294cc9;
  --pf-name: #1b357f;
  --pf-card: #ffffff;
  --pf-card-brd: #e2e8f4;
  --pf-line: #d8e0ef;
  --pf-track: #dde4f2;
  --pf-chip: #e6ecfb;
  --pf-cube: rgba(23, 40, 92, .10);
}

* { box-sizing: border-box; }

body.pf {
  margin: 0;
  font-family: "Pretendard", -apple-system, system-ui, sans-serif;
  background: var(--pf-bg);
  color: var(--pf-text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  word-break: keep-all;
}

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

/* ============================================================
   사이드바
   ============================================================ */
.pf-side {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--pf-side-w);
  background: linear-gradient(180deg, var(--pf-side-bg), var(--pf-side-bg2));
  border-right: 1px solid var(--pf-side-line);
  z-index: 40;
}
.pf-side-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 30px 22px;
}

.pf-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--pf-side-text);
  letter-spacing: -.01em;
  line-height: 1.1;
}
.pf-brand span {
  display: block;
  font-family: "Space Mono", monospace;
  font-size: .58rem;
  font-weight: 400;
  letter-spacing: .28em;
  color: var(--pf-side-muted);
  margin-top: 4px;
}

.pf-nav {
  margin-top: 54px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.pf-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--pf-side-muted);
  font-size: .85rem;
  transition: color .2s;
}
.pf-nav-num {
  font-family: "Space Mono", monospace;
  font-size: .68rem;
  color: var(--pf-side-num);
  opacity: .8;
}
.pf-nav-item:hover,
.pf-nav-item.active { color: #fff; }
.pf-nav-item.active .pf-nav-num { opacity: 1; }

.pf-side-foot { margin-top: auto; }
.pf-links { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.pf-pill {
  font-family: "Space Mono", monospace;
  font-size: .72rem;
  color: var(--pf-side-text);
  border: 1px solid var(--pf-side-line);
  border-radius: 100px;
  padding: 6px 13px;
  transition: background .2s;
}
.pf-pill:hover { background: rgba(255, 255, 255, .08); }

.pf-theme-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--pf-side-line);
  background: transparent;
  color: var(--pf-side-text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.pf-theme-ico {
  width: 15px; height: 15px;
  border-radius: 50%;
  background: currentColor;
}
/* 다크: 초승달(속 파냄) / 라이트: 꽉 찬 태양 느낌 */
html[data-theme="dark"] .pf-theme-ico {
  background: transparent;
  box-shadow: inset -4px -1px 0 0 currentColor;
}

/* ============================================================
   상단 앱바 (모바일 전용) / 드로어 scrim
   ============================================================ */
.pf-topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 58px;
  padding: 0 18px;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, var(--pf-side-bg), var(--pf-side-bg2));
  z-index: 45;
}
.pf-topbar-actions { display: flex; align-items: center; gap: 10px; }
.pf-burger {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--pf-side-line);
  background: transparent; color: var(--pf-side-text);
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
}
.pf-scrim {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, .5);
  opacity: 0; pointer-events: none;
  transition: opacity .25s; z-index: 44;
}
.pf-scrim.show { opacity: 1; pointer-events: auto; }

/* ============================================================
   우측 도트 페이지네이션 (모바일)
   ============================================================ */
.pf-dots {
  display: none;
  position: fixed;
  right: 16px; top: 50%;
  transform: translateY(-50%);
  flex-direction: column; gap: 12px;
  z-index: 30;
}
.pf-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  border: none;
  background: var(--pf-muted);
  opacity: .4;
  cursor: pointer;
  transition: opacity .2s, transform .2s;
}
.pf-dot.active { opacity: 1; transform: scale(1.5); background: var(--pf-accent); }

/* ============================================================
   편집 FAB
   ============================================================ */
.pf a.pf-edit-fab {
  position: fixed;
  right: 22px; bottom: 22px;
  background: var(--pf-accent);
  color: #fff;
  font-size: .85rem; font-weight: 600;
  padding: 10px 18px;
  border-radius: 100px;
  box-shadow: 0 8px 24px -8px rgba(0, 0, 0, .5);
  z-index: 50;
}

/* ============================================================
   본문
   ============================================================ */
.pf-main {
  margin-left: var(--pf-side-w);
  min-height: 100vh;
}

/* ── 히어로 ── */
.pf-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px clamp(28px, 6vw, 90px);
  overflow: hidden;
}
.pf-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  max-width: 1000px;
  margin: 0 auto; /* 히어로도 가운데 정렬 */
}
.pf-portrait {
  position: relative;
  padding: 14px;
}
.pf-portrait::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 60%; height: 60%;
  border-top: 2px solid var(--pf-accent);
  border-left: 2px solid var(--pf-accent);
}
.pf-portrait::after {
  content: "";
  position: absolute;
  bottom: 0; right: 0;
  width: 60%; height: 60%;
  border-bottom: 2px solid var(--pf-accent);
  border-right: 2px solid var(--pf-accent);
  opacity: .35;
}
.pf-portrait img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--pf-card);
}

.pf-kicker {
  font-family: "Space Mono", monospace;
  font-size: .72rem;
  letter-spacing: .3em;
  color: var(--pf-muted);
  margin-bottom: 14px;
}
.pf-name {
  font-size: clamp(46px, 7vw, 88px);
  font-weight: 700;
  line-height: 1;
  color: var(--pf-name);
  margin: 0;
  letter-spacing: -.02em;
}
.pf-name-en {
  font-family: "Space Mono", monospace;
  letter-spacing: .32em;
  color: var(--pf-muted);
  margin-top: 12px;
  font-size: .85rem;
}
.pf-typing {
  margin-top: 26px;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--pf-heading);
  min-height: 1.6em;
}
.pf-caret {
  color: var(--pf-accent);
  animation: pfBlink 1s step-end infinite;
  font-weight: 400;
}
@keyframes pfBlink { 50% { opacity: 0; } }

.pf-intro {
  margin-top: 20px;
  max-width: 560px;
  color: var(--pf-text);
  font-size: .96rem;
}
.pf-hero-tags { margin-top: 26px; display: flex; gap: 10px; flex-wrap: wrap; }
.pf-chip {
  background: var(--pf-chip);
  color: var(--pf-accent);
  font-size: .82rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 100px;
}

.pf-scroll {
  position: absolute;
  left: 50%; bottom: 28px;
  transform: translateX(-50%);
  font-family: "Space Mono", monospace;
  font-size: .66rem;
  letter-spacing: .3em;
  color: var(--pf-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.pf-scroll-line {
  width: 1px; height: 34px;
  background: linear-gradient(var(--pf-muted), transparent);
}

/* ── 섹션 공통 ── */
.pf-section {
  padding: clamp(60px, 9vh, 100px) clamp(28px, 6vw, 90px);
  max-width: 1000px;
  margin: 0 auto; /* 사이드바 옆 영역에서 가운데 정렬 (오른쪽 여백 균형) */
}
.pf-sec-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--pf-line);
  padding-bottom: 22px;
  margin-bottom: 46px;
  gap: 20px;
}
.pf-sec-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--pf-heading);
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.pf-sec-num {
  font-family: "Space Grotesk", sans-serif;
  color: var(--pf-muted);
  opacity: .5;
  font-size: clamp(28px, 4vw, 40px);
}
.pf-sec-en {
  font-family: "Space Mono", monospace;
  font-size: .72rem;
  letter-spacing: .22em;
  color: var(--pf-muted);
  white-space: nowrap;
}

/* ── 타임라인 (학력/활동) ── */
.pf-timeline { display: flex; flex-direction: column; gap: 8px; }
.pf-tl-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 24px;
}
.pf-tl-period {
  font-family: "Space Mono", monospace;
  font-size: .82rem;
  color: var(--pf-muted);
  padding-top: 2px;
  text-align: right;
}
.pf-tl-body {
  position: relative;
  padding: 0 0 34px 26px;
  border-left: 1.5px solid var(--pf-line);
}
.pf-tl-row:last-child .pf-tl-body { border-left-color: transparent; }
.pf-tl-dot {
  position: absolute;
  left: -6px; top: 4px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--pf-accent);
}
.pf-tl-body h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
  color: var(--pf-heading);
}
.pf-tl-body h3 small {
  font-size: .78rem;
  font-weight: 500;
  color: var(--pf-muted);
  margin-left: 4px;
}
.pf-tl-body p { margin: 0 0 10px; font-size: .9rem; color: var(--pf-text); }
.pf-badge {
  display: inline-block;
  font-family: "Space Mono", monospace;
  font-size: .82rem;
  font-weight: 700;
  color: var(--pf-accent);
  background: var(--pf-chip);
  padding: 6px 14px;
  border-radius: 8px;
}

/* ── 스킬 ── */
.pf-skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 64px);
}
.pf-skill-group { margin-bottom: 30px; }
.pf-skill-glabel {
  font-family: "Space Mono", monospace;
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--pf-muted);
  margin-bottom: 18px;
}
.pf-bar-row { margin-bottom: 18px; }
.pf-bar-name { font-size: .95rem; color: var(--pf-heading); margin-bottom: 8px; font-weight: 600; }
.pf-bar {
  height: 6px;
  border-radius: 100px;
  background: var(--pf-track);
  overflow: hidden;
}
.pf-bar span {
  display: block;
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--pf-accent), var(--pf-name));
  width: 0;
  transition: width 1s cubic-bezier(.2, .7, .2, 1);
}
.pf-tagwrap { display: flex; flex-wrap: wrap; gap: 10px; }
.pf-tag {
  border: 1px solid var(--pf-card-brd);
  background: var(--pf-card);
  color: var(--pf-heading);
  font-size: .85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 100px;
}

/* ── 수상 ── */
.pf-awards { display: flex; flex-direction: column; gap: 14px; }
.pf-award {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--pf-card);
  border: 1px solid var(--pf-card-brd);
  border-radius: 14px;
  padding: 20px 24px;
}
.pf-award-ico { font-size: 1.8rem; flex: 0 0 auto; }
.pf-award-body { flex: 1; min-width: 0; }
.pf-award-body h3 { margin: 0 0 5px; font-size: 1.02rem; color: var(--pf-heading); }
.pf-award-body p { margin: 0; font-size: .84rem; color: var(--pf-muted); }
.pf-award-date {
  font-family: "Space Mono", monospace;
  font-size: .82rem;
  color: var(--pf-muted);
  flex: 0 0 auto;
}

/* ── 프로젝트 ── */
.pf-projects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.pf-proj {
  background: var(--pf-card);
  border: 1px solid var(--pf-card-brd);
  border-radius: 16px;
  padding: 26px;
  transition: transform .2s, border-color .2s;
}
.pf-proj:hover { transform: translateY(-3px); border-color: var(--pf-accent); }
.pf-proj-link { display: block; }
.pf-proj-more { display: inline-block; margin-top: 14px; font-size: .82rem; font-weight: 600; color: var(--pf-accent); }
.pf-proj-ctx {
  font-family: "Space Mono", monospace;
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--pf-muted);
  margin-bottom: 12px;
}
.pf-proj h3 { margin: 0 0 12px; font-size: 1.2rem; color: var(--pf-heading); }
.pf-proj p { margin: 0 0 16px; font-size: .9rem; color: var(--pf-text); }
.pf-proj-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.pf-proj-tags .pf-tag { font-size: .78rem; padding: 6px 13px; }

/* ── 어학 ── */
.pf-langs { display: flex; flex-wrap: wrap; gap: 16px; }
.pf-lang {
  background: var(--pf-card);
  border: 1px solid var(--pf-card-brd);
  border-radius: 14px;
  padding: 22px 28px;
  min-width: 180px;
}
.pf-lang-name { font-size: 1.05rem; font-weight: 700; color: var(--pf-heading); }
.pf-lang-score { font-size: .95rem; color: var(--pf-accent); font-weight: 600; margin-top: 6px; }
.pf-lang-date { font-family: "Space Mono", monospace; font-size: .76rem; color: var(--pf-muted); margin-top: 4px; }

/* ── 연락처 ── */
.pf-contact { min-height: 90vh; display: flex; flex-direction: column; justify-content: center; }
.pf-sec-kicker {
  font-family: "Space Mono", monospace;
  font-size: .74rem;
  letter-spacing: .24em;
  color: var(--pf-muted);
  margin-bottom: 18px;
}
.pf-contact-h {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  color: var(--pf-heading);
  margin: 0 0 12px;
}
.pf-contact-sub { color: var(--pf-muted); margin: 0 0 40px; font-size: 1rem; }
.pf-contact-rows { display: flex; flex-direction: column; gap: 16px; margin-bottom: 40px; }
.pf-crow { display: flex; align-items: baseline; gap: 30px; font-size: 1.05rem; }
.pf-crow span {
  flex: 0 0 90px;
  font-size: .8rem;
  color: var(--pf-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.pf-crow a, .pf-crow b { color: var(--pf-heading); font-weight: 600; }
.pf-crow a:hover { color: var(--pf-accent); }
.pf-contact-links { display: flex; gap: 14px; flex-wrap: wrap; }
.pf-cbtn {
  background: var(--pf-card);
  border: 1px solid var(--pf-card-brd);
  color: var(--pf-heading);
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 100px;
  transition: background .2s, border-color .2s;
}
.pf-cbtn:hover { border-color: var(--pf-accent); color: var(--pf-accent); }
.pf-copy {
  margin-top: 60px;
  font-family: "Space Mono", monospace;
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--pf-muted);
}

/* ============================================================
   반응형 — 모바일 (≤ 900px)
   ============================================================ */
@media (max-width: 900px) {
  .pf-topbar { display: flex; }
  .pf-dots { display: flex; }

  .pf-main { margin-left: 0; padding-top: 58px; }

  /* 사이드바 → 우측 드로어 */
  .pf-side {
    left: auto; right: 0;
    width: min(74vw, 300px);
    transform: translateX(100%);
    transition: transform .28s ease;
    border-right: none;
    border-left: 1px solid var(--pf-side-line);
  }
  .pf-side.open { transform: translateX(0); }
  .pf-brand-side { display: none; }
  .pf-nav { margin-top: 20px; }
  .pf-side-inner { padding-top: 74px; }

  .pf-hero-grid { grid-template-columns: 1fr; max-width: 420px; }
  .pf-portrait { max-width: 240px; }

  .pf-skills,
  .pf-projects { grid-template-columns: 1fr; }

  .pf-sec-head { flex-direction: column; gap: 6px; }
  .pf-tl-row { grid-template-columns: 90px 1fr; gap: 14px; }
  .pf-award { flex-wrap: wrap; }
  .pf-award-date { order: 3; }
}

@media (max-width: 480px) {
  .pf-tl-row { grid-template-columns: 1fr; }
  .pf-tl-period { text-align: left; }
  .pf-crow { flex-direction: column; gap: 4px; }
}

/* 애니메이션 최소화 선호 시 */
@media (prefers-reduced-motion: reduce) {
  .pf-bar span { transition: none; }
  .pf-caret { animation: none; }
}

/* ============================================================
   프로젝트 상세 페이지
   ============================================================ */
.pf-detail-body { background: var(--pf-bg); }
.pf-dtop {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(20px, 5vw, 48px);
  background: color-mix(in srgb, var(--pf-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--pf-line);
}
.pf-back { font-size: .9rem; color: var(--pf-text); font-weight: 600; }
.pf-back:hover { color: var(--pf-accent); }
.pf-dtop-right { display: flex; align-items: center; gap: 12px; }
.pf-dtop .pf-pill { color: var(--pf-heading); border-color: var(--pf-card-brd); }
.pf-dtop .pf-theme-btn { color: var(--pf-text); border-color: var(--pf-card-brd); }

.pf-detail { max-width: 780px; margin: 0 auto; padding: clamp(30px, 6vh, 64px) clamp(22px, 5vw, 40px) 100px; }
.pf-d-ctx {
  font-family: "Space Mono", monospace; font-size: .74rem; letter-spacing: .12em;
  color: var(--pf-muted); margin-bottom: 14px;
}
.pf-d-title { font-size: clamp(30px, 5vw, 48px); font-weight: 700; color: var(--pf-heading); margin: 0 0 12px; line-height: 1.15; }
.pf-d-sub { font-size: 1.1rem; color: var(--pf-text); margin: 0 0 22px; }
.pf-d-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-bottom: 18px; }
.pf-d-meta span { font-size: .9rem; color: var(--pf-text); }
.pf-d-meta b { color: var(--pf-muted); font-weight: 600; margin-right: 6px; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
.pf-d-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pf-d-links { display: flex; flex-wrap: wrap; gap: 12px; }
.pf-d-cover { width: 100%; border-radius: 14px; margin: 34px 0; border: 1px solid var(--pf-card-brd); }
.pf-d-lede { font-size: 1.08rem; color: var(--pf-text); margin: 30px 0; padding-left: 16px; border-left: 3px solid var(--pf-accent); }
.pf-d-empty { color: var(--pf-muted); }
.pf-d-foot { margin-top: 60px; padding-top: 28px; border-top: 1px solid var(--pf-line); }

/* 마크다운 본문 */
.pf-article { font-size: 1rem; line-height: 1.8; color: var(--pf-text); margin-top: 30px; }
.pf-article > *:first-child { margin-top: 0; }
.pf-article h1, .pf-article h2, .pf-article h3, .pf-article h4 { color: var(--pf-heading); font-weight: 700; line-height: 1.3; margin: 1.8em 0 .7em; }
.pf-article h2 { font-size: 1.5rem; padding-bottom: .3em; border-bottom: 1px solid var(--pf-line); }
.pf-article h3 { font-size: 1.2rem; }
.pf-article p { margin: 1em 0; }
.pf-article a { color: var(--pf-accent); text-decoration: underline; text-underline-offset: 3px; }
.pf-article ul, .pf-article ol { margin: 1em 0; padding-left: 1.4em; }
.pf-article li { margin: .4em 0; }
.pf-article img { max-width: 100%; height: auto; border-radius: 10px; margin: 1.4em 0; }
.pf-article svg { max-width: 100%; height: auto; }
.pf-article blockquote { margin: 1.4em 0; padding: 6px 18px; border-left: 3px solid var(--pf-accent); color: var(--pf-muted); }
.pf-article code { font-family: "Space Mono", monospace; font-size: .88em; background: var(--pf-track); padding: 2px 6px; border-radius: 4px; }
.pf-article pre { background: var(--pf-card); border: 1px solid var(--pf-card-brd); border-radius: 10px; padding: 16px 18px; overflow-x: auto; margin: 1.4em 0; }
.pf-article pre code { background: none; padding: 0; font-size: .86rem; line-height: 1.6; }
.pf-article table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .92rem; display: block; overflow-x: auto; }
.pf-article th, .pf-article td { border: 1px solid var(--pf-line); padding: 9px 13px; text-align: left; }
.pf-article th { background: var(--pf-card); color: var(--pf-heading); font-weight: 600; }
.pf-article .mermaid { margin: 1.6em 0; text-align: center; }
.pf-article .mermaid svg { max-width: 100%; height: auto; }