/* ══════════════════════════════════════════════════════════════════
   components.css — 시안이 클래스로 부르는 부품들
   .nav / .btn / .tag / .blueprint / .table / .field / .seg / .stat-grid
   ══════════════════════════════════════════════════════════════════ */

/* ─── 도면 프레임 ─────────────────────────────────────────────────── */
/* 1px 실선 상자 + 바깥으로 삐져나온 모서리 등록 마크. 이 시스템의 서명. */
.blueprint {
  position: relative;
  border: 1px solid var(--color-divider);
  border-radius: 0;
}
.blueprint > .corner {
  position: absolute;
  width: 11px;
  height: 11px;
  color: var(--color-neutral-500);
  pointer-events: none;
}
.blueprint > .corner::before,
.blueprint > .corner::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.blueprint > .corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.blueprint > .corner::after { top: 5px; left: 0; width: 100%; height: 1px; }
.blueprint > .corner.tl { top: -6px; left: -6px; }
.blueprint > .corner.tr { top: -6px; right: -6px; }
.blueprint > .corner.bl { bottom: -6px; left: -6px; }
.blueprint > .corner.br { bottom: -6px; right: -6px; }

/* 어두운 강조 배경. 모서리 마크는 상자 바깥(밝은 종이 위)에 걸쳐 있으므로
   기본 중간 회색을 그대로 씁니다 — 밝게 바꾸면 종이에 묻혀 사라집니다. */
.blueprint--dark {
  background: var(--color-accent-900);
  border-color: var(--color-accent-800);
}

/* 사진 자리 표시 — 45° 해칭. 실제 사진으로 교체하면 .duotone 이
   흑백 + 잉크 틴트로 눌러 줍니다. */
.hatch {
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(135deg, rgba(29, 31, 32, 0.055) 0 1px, transparent 1px 9px),
    var(--color-surface);
}
.hatch-label {
  text-align: center;
  font: 400 10px/1.8 var(--font-mono);
  letter-spacing: 0.18em;
  color: var(--color-neutral-600);
}
.duotone > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.06) brightness(1.02);
}

/* ─── 버튼 ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 14px;
  line-height: 1.2;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-divider);
  border-radius: 0;
  padding: 11px 22px;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:disabled,
.btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}
.btn-primary:hover { background: var(--color-accent-700); color: var(--color-bg); }
.btn-primary:active { background: var(--color-accent-800); }

.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }

.btn-sm { padding: 9px 18px; font-size: 13.5px; }
.btn-block { width: 100%; }
.btn-icon { width: 36px; height: 36px; padding: 0; }

/* 어두운 띠 안의 버튼 반전 */
.btn-invert {
  background: var(--color-bg);
  color: var(--color-accent-900);
  border-color: var(--color-bg);
}
.btn-invert:hover { background: #fff; color: var(--color-accent-900); }
.btn-outline-invert { color: var(--color-bg); border-color: color-mix(in srgb, #f2f2f3 50%, transparent); }
.btn-outline-invert:hover {
  background: color-mix(in srgb, #f2f2f3 12%, transparent);
  color: var(--color-bg);
}

/* ─── 태그 ────────────────────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.02em;
  padding: 3px 10px;
  border-radius: 0;
  white-space: nowrap;
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag-neutral { background: var(--color-neutral-200); color: var(--color-neutral-800); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent); }

.tag-row { display: flex; flex-wrap: wrap; gap: 5px; }
.tag-row--lg { gap: 6px; }

/* ─── 헤더와 내비게이션 ───────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header[data-scrolled] { box-shadow: var(--shadow-sm); }
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block: 18px;
}
.nav-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  margin-right: auto;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 19px;
  color: inherit;
  text-decoration: none;
}
.nav-brand:hover { color: var(--color-accent); }
.nav-brand span {
  font: 400 9.5px/1.4 var(--font-body);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-neutral-600);
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 14px;
}
.nav-links a {
  color: inherit;
  text-decoration: none;
  padding-block: 2px;
}
.nav-links a:hover { color: var(--color-accent); }
.nav-links a[aria-current="page"] {
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
}
.nav-links .nav-icon { display: inline-flex; color: var(--color-text); }
.nav-links .nav-icon:hover { color: var(--color-accent); }
.nav-links .nav-icon[aria-current="page"] { border-bottom: 0; }

.theme-toggle { flex: none; }
.theme-toggle svg { pointer-events: none; }
.theme-toggle .theme-icon-sun { display: none; }
.theme-toggle[aria-pressed="true"] .theme-icon-moon { display: none; }
.theme-toggle[aria-pressed="true"] .theme-icon-sun { display: block; }

/* 햄버거 — 좁은 화면에서만 보입니다. */
.nav-toggle { display: none; }

/* 열고 닫히는 서랍 */
.nav-drawer {
  border-top: 1px solid var(--color-divider);
  background: var(--color-bg);
}
.nav-drawer ul { list-style: none; margin: 0; padding: 0; }
.nav-drawer a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px var(--page-pad);
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--color-text);
  text-decoration: none;
}
.nav-drawer li + li a { border-top: 1px solid var(--color-divider); }
.nav-drawer a:hover { background: var(--color-accent-100); color: var(--color-accent-800); }
.nav-drawer a[aria-current="page"] { color: var(--color-accent); }

@media (max-width: 780px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ─── 얇은 도구 띠 (이력서 상단) ──────────────────────────────────── */
.toolbar {
  position: sticky;
  top: var(--header-height);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding-block: 14px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.toolbar-actions { display: flex; gap: var(--space-2); }
.toolbar .btn { padding: 8px 16px; font-size: 13px; }

/* ─── 표 ──────────────────────────────────────────────────────────── */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.table td {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-divider);
  vertical-align: top;
  text-align: left;
}
.table td:first-child {
  padding-right: var(--space-4);
  color: var(--color-neutral-700);
  white-space: nowrap;
}
.table--ruled { border-top: 1px solid var(--color-text); }

/* ─── 폼 ──────────────────────────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label {
  font: 500 12.5px/1.3 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--color-neutral-800);
}
.input {
  width: 100%;
  font: 400 14px/1.5 var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: 0;
  padding: 10px 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input::placeholder { color: var(--color-neutral-500); }
.input:hover { border-color: var(--color-neutral-400); }
.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent);
}
textarea.input { resize: vertical; min-height: 96px; }

.input[aria-invalid="true"] { border-color: #a6432f; box-shadow: inset 0 0 0 1px #a6432f; }
.field-error {
  min-height: 0;
  font: 400 11.5px/1.5 var(--font-body);
  color: #a6432f;
}
.field-error:empty { display: none; }

.form-status {
  margin: 0;
  font: 400 12.5px/1.6 var(--font-body);
  color: var(--color-accent-800);
}
.form-status:empty { display: none; }

/* ─── 분절 선택 (포트폴리오 필터) ────────────────────────────────── */
.seg {
  display: inline-flex;
  flex-wrap: wrap;
  border: 1px solid var(--color-divider);
}
.seg-opt {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  padding: 8px 15px;
  font: 500 12.5px/1.2 var(--font-body);
  letter-spacing: 0.02em;
  color: var(--color-neutral-800);
  transition: background 0.15s ease, color 0.15s ease;
}
.seg-opt + .seg-opt { border-left: 1px solid var(--color-divider); }
.seg-opt input {
  position: absolute;
  inset: 0;
  appearance: none;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.seg-opt:hover { background: color-mix(in srgb, var(--color-text) 6%, transparent); }
.seg-opt:has(input:checked) {
  background: var(--color-accent);
  color: var(--color-bg);
}
.seg-opt:has(input:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* ─── 수치 띠 ─────────────────────────────────────────────────────── */
/* 여러 칸이 세로 괘선으로 나뉜 격자. 좁아지면 세로로 쌓입니다. */
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stat {
  padding: 20px 22px;
  border-right: 1px solid var(--color-divider);
}
.stat:last-child { border-right: 0; }
.stat-value {
  font: 600 clamp(26px, 2.6vw, 34px)/1 var(--font-heading);
  letter-spacing: -0.01em;
}
.stat-label {
  margin-top: 8px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--color-neutral-700);
}

@media (max-width: 900px) {
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat-grid > .stat:nth-child(-n + 2) { border-bottom: 1px solid var(--color-divider); }
}
@media (max-width: 560px) {
  .stat-grid { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--color-divider); }
  .stat:last-child { border-bottom: 0; }
}

/* ─── 푸터 ────────────────────────────────────────────────────────── */
.site-footer {
  margin-top: 70px;
  border-top: 1px solid var(--color-text);
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-6);
  flex-wrap: wrap;
  padding-block: 26px 30px;
}
.footer-brand { font: 600 17px/1.1 var(--font-heading); }
.footer-brand + div {
  font: 400 9.5px/1.6 var(--font-mono);
  letter-spacing: 0.16em;
  color: var(--color-neutral-600);
}
.footer-links { display: flex; gap: 20px; font-size: 13px; }
.footer-copy { font: 400 10.5px var(--font-mono); color: var(--color-neutral-600); }

/* 긴 페이지에서만 나타나는 맨 위로 이동 버튼 */
.scroll-top {
  position: fixed;
  right: max(20px, calc((100vw - var(--page-max)) / 2 + 14px));
  bottom: 24px;
  z-index: 25;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-divider);
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  font: 500 18px/1 var(--font-mono);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
}
.scroll-top:hover { background: var(--color-surface); }
.scroll-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

@media (max-width: 720px) {
  .scroll-top { right: 16px; bottom: 16px; }
}