/* =========================================================
   THEME LIGHT — 기본 테마
   웜 아이보리 배경 + 비비드 에메랄드 포인트
   폰트는 다크 테마와 동일한 Pretendard 계열 사용
   ========================================================= */

:root,
html[data-theme="light"] {
  --bg: #f8f7f3;
  --bg-alt: #f0eee7;
  --surface: #ffffff;
  --surface-solid: #ffffff;
  --header-bg: rgba(248, 247, 243, .90);
  --footer-bg: #f0eee7;
  --contact-bg: linear-gradient(180deg, #f0eee7 0%, #e7e4d9 100%);

  --ink: #12161a;
  --ink-soft: #474f57;
  --ink-mute: #7c838a;

  --line: rgba(18, 22, 26, .10);
  --line-strong: rgba(18, 22, 26, .19);
  --chip-bg: rgba(18, 22, 26, .04);
  --row-hover: rgba(18, 22, 26, .024);
  --input-bg: #fdfcfa;
  --dock-bg: rgba(255, 255, 255, .97);

  /* ---- 포인트 컬러: 선명한 에메랄드 ---- */
  --accent: #00805e;              /* 텍스트/보더용 (흰 배경 대비 4.9:1) */
  --accent-pop: #10b981;          /* 장식·그라데이션·강조 (밝은 톤) */
  --accent-deep: #005c44;         /* hover·진한 강조 */
  --accent-ink: #ffffff;          /* accent 배경 위 텍스트 */
  --accent-soft: rgba(0, 128, 94, .10);
  --accent-wash: rgba(16, 185, 129, .14);  /* 은은한 배경 틴트 */
  --hero-em: #00805e;

  --radius: 12px;
  --radius-lg: 14px;
  --btn-radius: 7px;
  --mark-radius: 5px;
  --shadow: 0 18px 44px -26px rgba(18, 22, 26, .28);
  --btn-shadow: 0 10px 26px -12px rgba(0, 128, 94, .48);

  /* ---- 다크 테마와 동일한 폰트 패밀리 ---- */
  --font-sans: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --font-display: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --hero-bg:
    radial-gradient(680px 380px at 10% -8%, rgba(16, 185, 129, .13), transparent 68%),
    radial-gradient(760px 420px at 94% 2%, rgba(0, 128, 94, .09), transparent 70%),
    linear-gradient(180deg, #fbfaf6 0%, #f8f7f3 100%);
  --hero-grid: linear-gradient(rgba(18, 22, 26, .045) 1px, transparent 1px),
               linear-gradient(90deg, rgba(18, 22, 26, .045) 1px, transparent 1px);
  --hero-grid-size: 100% 40px;
  --hero-grid-opacity: .8;

  color-scheme: light;
}

/* =========================================================
   타이포그래피 — 다크 테마와 동일한 산세리프 · 타이트 트래킹
   ========================================================= */
html[data-theme="light"] h1,
html[data-theme="light"] h2,
html[data-theme="light"] .sec-title,
html[data-theme="light"] .hero__title,
html[data-theme="light"] .page-hero h1,
html[data-theme="light"] .timeline__year,
html[data-theme="light"] .principle__num,
html[data-theme="light"] .collab__num,
html[data-theme="light"] .cta-band h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.042em;
}

html[data-theme="light"] .hero__title {
  line-height: 1.17;
  font-size: clamp(2.1rem, 4.9vw, 3.7rem);
}

/* 히어로 강조 라인 — 다크의 그라데이션을 라이트 톤으로 */
html[data-theme="light"] .hero__title-em {
  background: linear-gradient(96deg, #0a8f68 0%, #10b981 52%, #0d7d8c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  border-bottom: 0;
  padding-bottom: 0;
}

html[data-theme="light"] .brand__mark::after { background: var(--bg); }

/* ---- 라벨·키커: 포인트 컬러 명확히 ---- */
html[data-theme="light"] .eyebrow,
html[data-theme="light"] .panel__label,
html[data-theme="light"] .sec-label,
html[data-theme="light"] .card__kicker,
html[data-theme="light"] .compare__tag,
html[data-theme="light"] .work-card__cat,
html[data-theme="light"] .case-detail__kicker,
html[data-theme="light"] .page-hero__en {
  font-family: var(--font-mono);
  color: var(--accent);
  letter-spacing: .12em;
  font-weight: 600;
}

html[data-theme="light"] .sec-num {
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* =========================================================
   HERO / KPI — 포인트 컬러 강조
   ========================================================= */
html[data-theme="light"] .hero__panel,
html[data-theme="light"] .aside-box,
html[data-theme="light"] .contact__form {
  background: #ffffff;
  border-color: var(--line);
  box-shadow: 0 26px 64px -48px rgba(18, 22, 26, .48);
}

html[data-theme="light"] .hero__panel { border-top: 3px solid var(--accent-pop); }

html[data-theme="light"] .eyebrow__dot {
  background: var(--accent-pop);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, .20);
}

html[data-theme="light"] .stat-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
html[data-theme="light"] .stat-strip strong,
html[data-theme="light"] .kpi__num {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--accent);
}
html[data-theme="light"] .stat-strip li:first-child strong,
html[data-theme="light"] .kpi:first-child .kpi__num { color: var(--accent-pop); }
html[data-theme="light"] .stat-strip span { color: var(--ink-mute); }

html[data-theme="light"] .kpi { border-left-color: var(--line); }

/* =========================================================
   카드
   ========================================================= */
html[data-theme="light"] .card,
html[data-theme="light"] .principle,
html[data-theme="light"] .collab__item,
html[data-theme="light"] .org__unit,
html[data-theme="light"] .case-panel {
  background: #ffffff;
  box-shadow: 0 1px 0 rgba(18, 22, 26, .04);
}

html[data-theme="light"] .card:hover,
html[data-theme="light"] .principle:hover,
html[data-theme="light"] .collab__item:hover {
  box-shadow: 0 24px 54px -34px rgba(18, 22, 26, .40);
  border-color: var(--accent);
}

html[data-theme="light"] .card__index,
html[data-theme="light"] .process__num,
html[data-theme="light"] .service-block__num {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

html[data-theme="light"] .card--service {
  border-top: 3px solid var(--accent-pop);
  background: linear-gradient(180deg, rgba(16, 185, 129, .045) 0%, #ffffff 42%);
}

html[data-theme="light"] .principle__num,
html[data-theme="light"] .collab__num {
  color: var(--accent-pop);
  opacity: .55;
  font-weight: 800;
}

html[data-theme="light"] .card--tech { border-top: 3px solid var(--accent); }

html[data-theme="light"] .card__go { color: var(--accent); }

/* =========================================================
   AS-IS → TO-BE / 절차
   ========================================================= */
html[data-theme="light"] .compare { border-top-color: var(--line-strong); }
html[data-theme="light"] .compare__asis {
  background: rgba(18, 22, 26, .045);
  text-decoration: none;
  border-left: 2px solid var(--line-strong);
  border-radius: 0;
}
html[data-theme="light"] .compare__arrow { color: var(--accent-pop); }
html[data-theme="light"] .compare__tobe { color: var(--ink); }

html[data-theme="light"] .process__step { border-top: 2px solid var(--line-strong); }
html[data-theme="light"] .process__step::before { background: var(--accent-pop); }
html[data-theme="light"] .process__out {
  border-radius: 4px;
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  font-weight: 600;
}

/* =========================================================
   칩 · 태그 — 포인트 컬러 적용
   ========================================================= */
html[data-theme="light"] .chips li {
  background: var(--accent-soft);
  border: 1px solid rgba(0, 128, 94, .22);
  border-radius: 4px;
  color: var(--accent-deep);
  font-weight: 500;
}

/* =========================================================
   연혁
   ========================================================= */
html[data-theme="light"] .timeline { border-top: 2px solid var(--ink); }
html[data-theme="light"] .timeline__year { color: var(--accent); font-weight: 800; }
html[data-theme="light"] .timeline__item { border-bottom-color: var(--line); }
html[data-theme="light"] .timeline__item:hover { background: var(--accent-soft); }

/* =========================================================
   필터 · 프로젝트 카드
   ========================================================= */
html[data-theme="light"] .filter { border-radius: 4px; }
html[data-theme="light"] .filter.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
html[data-theme="light"] .filter:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

html[data-theme="light"] .work-card {
  background: #ffffff;
  border-radius: 5px;
}
html[data-theme="light"] .work-card:hover {
  border-color: var(--accent);
  box-shadow: 0 22px 50px -34px rgba(18, 22, 26, .40);
}
html[data-theme="light"] .work-card h3 { color: var(--ink); }

/* =========================================================
   사례 탭
   ========================================================= */
html[data-theme="light"] .case-tab { border-radius: 0 6px 6px 0; }
html[data-theme="light"] .case-tab.is-active {
  background: var(--accent-soft);
  color: var(--accent-deep);
}
html[data-theme="light"] .case-tab.is-active::before { background: var(--accent); }
html[data-theme="light"] .flow__idx {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

/* =========================================================
   조직도
   ========================================================= */
html[data-theme="light"] .org__ceo {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #ffffff;
  border-radius: 5px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .02em;
  padding: 13px 42px;
  box-shadow: 0 12px 28px -14px rgba(0, 128, 94, .55);
}
html[data-theme="light"] .org__unit h3,
html[data-theme="light"] .service-block h2,
html[data-theme="light"] .card--tech h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.03em;
}

/* =========================================================
   폼
   ========================================================= */
html[data-theme="light"] .contact__form { border: 1px solid var(--line-strong); }
html[data-theme="light"] .field input,
html[data-theme="light"] .field select,
html[data-theme="light"] .field textarea {
  border-radius: 5px;
  border-color: var(--line-strong);
}
html[data-theme="light"] .field input:focus,
html[data-theme="light"] .field select:focus,
html[data-theme="light"] .field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, .18);
}
html[data-theme="light"] .field--check input { accent-color: var(--accent); }
html[data-theme="light"] .form-status.is-error {
  color: #9c2a17;
  background: rgba(156, 42, 23, .07);
  border-color: rgba(156, 42, 23, .25);
}
html[data-theme="light"] .form-status.is-ok {
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-color: rgba(0, 128, 94, .28);
}

/* =========================================================
   버튼 — 포인트 컬러를 확실히
   ========================================================= */
html[data-theme="light"] .btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--btn-shadow);
}
html[data-theme="light"] .btn--primary:hover {
  background: var(--accent-deep);
  filter: none;
  box-shadow: 0 14px 30px -12px rgba(0, 92, 68, .55);
}
html[data-theme="light"] .btn--ghost { border-color: var(--accent); color: var(--accent); }
html[data-theme="light"] .btn--ghost:hover {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

html[data-theme="light"] .panel__download {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
html[data-theme="light"] .panel__download:hover {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
html[data-theme="light"] .panel__download:not(:hover) .panel__download-meta {
  color: var(--accent);
  opacity: .72;
}

/* =========================================================
   내비
   ========================================================= */
html[data-theme="light"] .site-header { border-bottom-color: var(--line); }
html[data-theme="light"] .site-header.is-stuck { box-shadow: 0 1px 0 var(--line); }
html[data-theme="light"] .nav a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-soft);
}
html[data-theme="light"] .nav a[aria-current="page"]::after { background: var(--accent); }
html[data-theme="light"] .nav a:hover { color: var(--accent); background: var(--accent-soft); }
html[data-theme="light"] .nav__cta { background: var(--accent) !important; }

/* =========================================================
   푸터 · 도크 · 기타
   ========================================================= */
html[data-theme="light"] .site-footer { border-top: 1px solid var(--line-strong); }
html[data-theme="light"] .site-footer__brand .brand__text { color: var(--ink); }
html[data-theme="light"] .site-footer__nav a:hover { color: var(--accent); }
html[data-theme="light"] .theme-dock {
  border-color: var(--line-strong);
  box-shadow: 0 10px 30px -14px rgba(18, 22, 26, .28);
}
html[data-theme="light"] .theme-dock button.is-active {
  background: var(--accent);
  color: var(--accent-ink);
}
html[data-theme="light"] .toast { box-shadow: 0 12px 34px -18px rgba(18, 22, 26, .28); }
html[data-theme="light"] .toast strong { color: var(--accent); }

html[data-theme="light"] .note {
  border-left-color: var(--accent-pop);
  color: var(--ink-soft);
}

html[data-theme="light"] .ticks li::before {
  background: var(--accent-pop);
  border-radius: 50%;
}
html[data-theme="light"] .work-card__features li::before {
  background: var(--accent);
  opacity: .55;
}

/* ---- 사진 캡션·지도 등 부가 요소 ---- */
html[data-theme="light"] .map-card { border-color: var(--line); }
html[data-theme="light"] .map-card__pin {
  background: var(--accent-pop);
  box-shadow: 0 0 0 6px rgba(16, 185, 129, .18);
}
html[data-theme="light"] .pager__item:hover { border-color: var(--accent); }
html[data-theme="light"] .pager__label { color: var(--accent); }
html[data-theme="light"] .jump-nav a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
html[data-theme="light"] .breadcrumb a:hover { color: var(--accent); }
html[data-theme="light"] .data-table thead th {
  background: var(--accent-soft);
  color: var(--accent-deep);
}
html[data-theme="light"] .data-table .cell-tags span {
  background: var(--accent-soft);
  border-color: rgba(0, 128, 94, .20);
  color: var(--accent-deep);
}
html[data-theme="light"] .agree-box {
  border-color: rgba(0, 128, 94, .30);
  background: var(--accent-soft);
}
html[data-theme="light"] .service-block__tagline { border-left-color: var(--accent-pop); }
html[data-theme="light"] .service-block { border-top-color: var(--line); }

/* ---- accent 변수를 쓰는 공통 요소 보정 ---- */
html[data-theme="light"] .skip-link { background: var(--accent); color: var(--accent-ink); }
html[data-theme="light"] ::selection { background: var(--accent-wash); }