/* ==========================================================
   home.css — index.html(홈) 전용 스타일
   히어로, 통계, 소개, 작업 그리드, 경력, 연락, 상세 모달, 배경 캔버스
   ========================================================== */

/* ---------- Ambient background (web / code / AI motif) ---------- */
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  /* mix-blend-mode는 이 레이어 위에서 무엇이든 다시 그려질 때마다(모달 열기 등)
     브라우저가 블렌딩을 재계산하게 만들어 체감 버벅임의 실질적 원인이었습니다.
     캔버스 안에서 이미 rgba 알파값으로 은은한 톤을 내고 있으므로 blend mode 없이도
     시각적 효과는 거의 동일하게 유지되면서 비용은 크게 줄어듭니다. */
}

/* ---------- Hero ---------- */
.hero {
  padding: 116px 0 0;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--accent);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  display: inline-block;
}
h1.headline {
  font-weight: 800;
  font-size: clamp(36px, 6vw, 66px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  max-width: 15ch;
}
.hero .subtag {
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin: 0 0 30px;
}
.hero .subtag span {
  color: var(--accent);
}
.hero p.lede {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 48ch;
  margin: 0 0 56px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.stat {
  padding: 30px 26px;
  border-right: 1px solid var(--line);
}
.stat:last-child {
  border-right: none;
}
.stat .num {
  font-weight: 800;
  font-size: clamp(26px, 3vw, 36px);
  color: var(--ink);
}
.stat .num .count {
  color: var(--accent);
}
.stat .num .suffix {
  color: var(--accent);
}
.stat .label {
  font-family: 'Pretendard', sans-serif;
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 6px;
  letter-spacing: .02em;
}

/* ---------- Section shell ---------- */
section {
  padding: 90px 0;
  border-bottom: 1px solid var(--line);
}
section:last-of-type {
  border-bottom: none;
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 46px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-weight: 800;
  font-size: 27px;
  margin: 0;
}
.section-head .tag {
  font-family: 'Pretendard', sans-serif;
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: .04em;
}
.career-total {
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin: -30px 0 30px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
}
.about-grid p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 16px;
  max-width: 60ch;
}
.about-grid p strong {
  color: var(--ink);
  font-weight: 600;
}
#introText.is-typing::after {
  content: "";
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 2px;
  background: var(--accent);
  vertical-align: -0.15em;
  animation: caretBlink 0.9s step-end infinite;
}
@keyframes caretBlink {
  50% {
    opacity: 0;
  }
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}
.skill-chip {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 7px 11px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color .15s ease, transform .15s ease;
}
.skill-chip:hover,
.skill-chip:focus-visible,
.skill-chip.is-active {
  border-color: var(--accent);
}
.skill-chip.is-active {
  transform: translateY(-1px);
}
.skill-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: var(--accent-soft);
  transition: width .55s cubic-bezier(.22,.9,.35,1);
  z-index: 0;
}
.skill-chip:hover .skill-fill,
.skill-chip:focus-visible .skill-fill,
.skill-chip.is-active .skill-fill {
  width: var(--lvl);
}
.skill-label {
  position: relative;
  z-index: 1;
}
.skill-pct {
  position: relative;
  z-index: 1;
  font-size: 11px;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .3s ease .1s, transform .3s ease .1s;
  margin-left: auto;
}
.skill-chip:hover .skill-pct,
.skill-chip:focus-visible .skill-pct,
.skill-chip.is-active .skill-pct {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- Work / Filters ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 42px;
}
.filter-btn {
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .15s ease;
}
.filter-btn:hover {
  border-color: var(--ink-soft);
  color: var(--ink);
}
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #FFFFFF;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -22px rgba(26,24,21,0.28);
  border-color: #D6D2C7;
}
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.card[hidden] {
  display: none;
}
.thumb {
  aspect-ratio: 19/9;
  position: relative;
  overflow: hidden;
}
.thumb-cover {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.thumb-slide {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 3px;
  background-size: cover;
  background-position: center;
}
.thumb-slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.2,0,.2,1);
}
.thumb .yr {
  font-family: 'Pretendard', sans-serif;
  font-size: 11px;
  color: rgba(243,242,238,0.9);
  background: rgba(0,0,0,0.32);
  padding: 3px 8px;
  border-radius: 2px;
  position: absolute;
  z-index: 2;
}
.thumb .yr {
  left: 14px;
  bottom: 14px;
}
.card-body {
  padding: 18px 18px 20px;
}
.card-body h3 {
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 8px;
}
.card-body p {
  line-height: 1.55;
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 14px;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.html-tag {
  font-family: 'Pretendard', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 3px 7px;
  border-radius: 2px;
}

/* ---------- Career (commit-log style) ---------- */
.log {
  border-top: 1px solid var(--line);
}
.acc-item {
  border-bottom: 1px solid var(--line);
}
.acc-header {
  width: 100%;
  display: grid;
  grid-template-columns: 200px 1fr 20px;
  align-items: center;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: var(--ink);
}
.acc-header .date {
  line-height: 1.4;
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  color: var(--ink-soft);
}
.acc-header .title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  transition: color .15s ease;
}
.acc-header .title .role {
  display: block;
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin: 0;
}
.acc-header .chev {
  display: inline-flex;
  color: var(--ink-soft);
  transform: rotate(0deg);
  transition: transform .25s ease, color .15s ease;
  justify-self: end;
}
.acc-header .chev svg {
  display: block;
  width: 14px;
  height: 14px;
}
.acc-header:hover .chev {
  color: var(--accent);
}
.acc-item.open .acc-header .chev {
  transform: rotate(180deg);
  color: var(--accent);
}
.acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: all 0.3s ease;
}
.acc-item.open .acc-panel {
  grid-template-rows: 1fr;
}
.acc-panel-inner {
  display: none;
  min-height: 0;
  padding: 0 0 20px 200px;
  overflow: hidden;
}
.acc-item.open .acc-panel-inner {
  display: block;
}
.acc-panel-inner p {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 58ch;
}
.acc-panel-inner p:last-child {
  margin-bottom: 0;
}
.acc-panel-inner ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  max-width: 58ch;
}
.acc-panel-inner ul li {
  position: relative;
  padding-left: 14px;
  color: var(--ink-soft);
  font-size: 15px;
}
.acc-panel-inner ul li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- Contact ---------- */
.contact-box {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 28px;
}
.contact-box h2 {
  font-weight: 800;
  font-size: 32px;
  margin: 0 0 10px;
  max-width: 16ch;
}
.contact-box p {
  color: var(--ink-soft);
  margin: 0;
  max-width: 40ch;
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}
.contact-links a {
  font-family: 'Pretendard', sans-serif;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
.contact-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.contact-form {
  display: grid;
  gap: 16px;
  width: 100%;
  margin-top: 40px;
}
.form-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.form-field {
  display: grid;
  gap: 8px;
}
.form-label {
  font-family: 'Pretendard', sans-serif;
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: .02em;
}
.contact-form input,
.contact-form textarea {
  font-family: 'Pretendard', sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  resize: vertical;
}
.contact-form input:focus-visible,
.contact-form textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 4px;
}
.form-status {
  font-family: 'Pretendard', sans-serif;
  font-size: 13px;
  color: var(--ink-soft);
}
.form-status.is-success {
  color: #3A8F5A;
}
.form-status.is-error {
  color: #C0392B;
}
.form-submit {
  font-family: 'Pretendard', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  padding: 12px 24px;
  cursor: pointer;
  transition: opacity .15s ease;
}
.form-submit:hover {
  opacity: .88;
}
.form-submit:disabled {
  opacity: .5;
  cursor: default;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat:nth-child(2) {
    border-right: none;
  }
}
@media (max-width: 560px) {
  .hero {
    padding: 84px 0 0;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  section {
    padding: 64px 0;
  }
  .acc-header {
    grid-template-columns: 1fr 18px;
    grid-template-rows: auto auto;
    row-gap: 4px;
  }
  .acc-header .date {
    grid-column: 1 / -1;
    grid-row: 1;
  }
  .acc-header .title {
    grid-column: 1;
    grid-row: 2;
  }
  .acc-header .chev {
    grid-column: 2;
    grid-row: 2;
  }
  .acc-panel-inner {
    padding-left: 2px;
  }
  .contact-box {
    align-items: flex-start;
  }
  .contact-links {
    align-items: flex-start;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .form-footer {
    flex-wrap: wrap;
  }
  .stats {
    grid-template-columns: 1fr;
  }
  .stat {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
}