/* MM SMART SOLUTION 웹
   방향: 기업형 캐논, 풀 커밋 — 라이트 그라운드 위 딥 네이비/블루가 면 단위로 깔리고,
   데모(업로드→변환→결과)가 히어로의 주인공이다. 수치는 모노로, 주장에는 근거를 붙인다.
   시안: MM_SMART_SOLUTION_웹사이트_제작시안.pdf (PRIMARY BLUE / CLEAN LAYOUT / CLEAR CTA) */

/* Pretendard는 셀프호스팅 정적 웨이트만 쓴다. CDN dynamic-subset과 variable
   woff2 둘 다 이 환경에서 렌더러를 얼렸다(실측 2회) — 정적 3웨이트 + swap. */
@font-face {
  font-family: Pretendard;
  src: url("/assets/fonts/Pretendard-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: Pretendard;
  src: url("/assets/fonts/Pretendard-SemiBold.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: Pretendard;
  src: url("/assets/fonts/Pretendard-Bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --navy-950: #081a38;
  --navy-900: #0c2450;
  --navy-800: #123068;

  --blue-700: #1d55d0;
  --blue-800: #16419f;
  --blue-100: #d9e6ff;
  --blue-50: #eef4ff;

  --ground: #ffffff;
  --alt: #f5f8fc;
  --line: #dce4f0;
  --line-soft: #e8edf6;

  --ink: #172342;
  --ink-2: #4a5877;
  --ink-3: #71809f;
  /* 네이비 면 위 전용 잉크 — 회색이 아니라 바탕 색조에서 틴트한다 */
  --ink-on-navy: #f2f6ff;
  --ink-on-navy-2: #b8c9ec;

  --good: #178a52;
  --bad: #cf4436;
  --good-on-navy: #6fd9a2;
  --bad-on-navy: #ff9184;

  --r: 12px;
  --r-sm: 8px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --shadow-card: 0 1px 2px rgba(12, 36, 80, .06), 0 8px 24px rgba(12, 36, 80, .08);
  --shadow-lift: 0 2px 4px rgba(12, 36, 80, .08), 0 16px 40px rgba(12, 36, 80, .14);

  --sans: Pretendard, -apple-system, BlinkMacSystemFont,
          "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", SFMono-Regular, Consolas,
          "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  /* 한국어는 기본 규칙으로 어절 중간에서 끊긴다("가 / 공 데이터로").
     keep-all이 어절 경계에서만 끊게 하고, 긴 영문/경로는 break-word로 흘린다. */
  word-break: keep-all;
  overflow-wrap: break-word;
}

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.025em; text-wrap: balance; }
p { margin: 0; }
a { color: inherit; }

.wrap { width: min(1160px, 100% - 2 * var(--pad)); margin-inline: auto; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 30;
  background: var(--blue-700); color: #fff; padding: .6rem 1rem; font-weight: 600;
}
.skip:focus { left: 0; }

:focus-visible { outline: 2px solid var(--blue-700); outline-offset: 2px; border-radius: 4px; }
.hero :focus-visible, .band :focus-visible, .foot :focus-visible { outline-color: #fff; }

/* ---------- 상단 내비게이션 ---------- */

/* backdrop-filter를 쓰지 않는다 — 저사양 GPU에서 스크롤마다 전체 리페인트를
   유발해 렌더러가 멎는 것을 실측했다. 불투명 배경이면 충분하다. */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: #fff;
  border-bottom: 1px solid var(--line-soft);
}

.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; height: 64px;
}

.mark {
  display: flex; align-items: center; gap: .6rem;
  text-decoration: none; color: inherit; flex-shrink: 0;
}
.mark-glyph { width: 26px; height: 26px; object-fit: contain; display: block; }
.mark-name { font-weight: 700; letter-spacing: -0.01em; font-size: 1.02rem; }

.nav { display: flex; align-items: center; gap: .25rem; }

.nav a {
  text-decoration: none; color: var(--ink-2);
  font-size: .92rem; font-weight: 500;
  padding: .45rem .8rem; border-radius: 999px;
  transition: color .15s ease, background-color .15s ease;
}
.nav a:hover { color: var(--ink); background: var(--blue-50); }
.nav a[aria-current="page"] { color: var(--blue-800); background: var(--blue-50); font-weight: 600; }

.nav a.nav-cta,
.nav a.nav-cta[aria-current="page"] {
  margin-left: .35rem;
  background: var(--blue-700); color: #fff;
  font-weight: 600;
}
.nav a.nav-cta:hover { background: var(--blue-800); color: #fff; }

.topbar-right { display: flex; align-items: center; gap: clamp(.6rem, 2vw, 1rem); }

/* 언어 전환 — 현재 언어가 눌린 상태로 남는다. */
.langs {
  display: flex; align-items: stretch;
  border: 1px solid var(--line); border-radius: 999px;
  overflow: hidden; background: #fff;
}
.lang {
  appearance: none; border: 0; background: transparent;
  color: var(--ink-3); font: inherit; font-size: .75rem; letter-spacing: .01em;
  padding: .3rem .7rem; cursor: pointer;
  transition: color .16s ease, background-color .16s ease;
}
.lang + .lang { border-left: 1px solid var(--line); }
.lang:hover { color: var(--ink-2); }
.lang[aria-pressed="true"] { background: var(--blue-50); color: var(--blue-800); font-weight: 600; }

.status { display: flex; align-items: center; gap: .4rem; font-size: .78rem; color: var(--ink-3); }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink-3); transition: background-color .3s ease;
}
.status[data-state="ok"] .status-dot { background: var(--good); }
.status[data-state="ok"] { color: var(--ink-2); }
.status[data-state="down"] .status-dot { background: var(--bad); }
.status[data-state="down"] { color: var(--bad); }

/* 모바일 내비: 링크 줄은 가로 스크롤하되 문의하기 CTA는 오른쪽에 붙여 둔다.
   주 행동이 스크롤 밖으로 밀려나면 없는 것과 같다. */
@media (max-width: 860px) {
  .topbar-inner { height: auto; flex-wrap: wrap; padding-block: .55rem; row-gap: .4rem; }
  .nav {
    order: 3; width: 100%;
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-right: 0;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { white-space: nowrap; }
  .nav a.nav-cta {
    position: sticky; right: 0; margin-left: auto;
    /* 스크롤되는 링크가 CTA 아래로 비쳐 보이지 않게 흰 여백을 함께 끈다 */
    box-shadow: -10px 0 10px -6px rgba(255, 255, 255, .95), -18px 0 0 -6px #fff;
  }
  .status { display: none; }
}

/* 아주 좁은 화면: 로고와 언어 토글을 한 줄에 함께 둔다 (상단바 3줄 방지) */
@media (max-width: 560px) {
  .mark-name { font-size: .92rem; }
  .mark-glyph { width: 22px; height: 22px; }
  .lang { font-size: .7rem; padding: .28rem .55rem; }
}

/* ---------- 히어로 — 네이비 면 + 데모 카드 ---------- */

.hero {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(29, 85, 208, .35), transparent 60%),
    linear-gradient(160deg, var(--navy-950), var(--navy-900) 65%, var(--navy-800));
  color: var(--ink-on-navy);
  overflow: hidden;
}

.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 480px);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.hero h1 {
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.16;
  color: #fff;
}

.hero-sub {
  margin-top: 1.1rem;
  font-size: clamp(1rem, 1.6vw, 1.13rem);
  color: var(--ink-on-navy-2);
  max-width: 34rem;
}
.hero-sub strong { color: #fff; font-weight: 600; }

.hero-record {
  margin-top: 1.6rem;
  display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: .35rem .5rem;
  font-size: .88rem; color: var(--ink-on-navy-2);
}
.hero-record b { font-family: var(--mono); font-weight: 600; color: #fff; }
.hero-record a { color: var(--ink-on-navy-2); }
.hero-record a:hover { color: #fff; }

.hero-outputs { margin-top: 1.4rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.hero-outputs span {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .02em;
  color: var(--ink-on-navy);
  border: 1px solid rgba(184, 201, 236, .35);
  border-radius: 999px; padding: .3rem .75rem;
}

/* 데모 카드 — 페이지의 주인공. 흰 카드가 네이비 위에 떠 있다 */
.demo-card {
  background: var(--ground); color: var(--ink);
  border-radius: calc(var(--r) + 4px);
  box-shadow: var(--shadow-lift);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
}

.demo-card-h { font-size: 1.02rem; font-weight: 700; }

.drop {
  margin-top: .9rem;
  border: 1.5px dashed var(--line);
  border-radius: var(--r);
  background: var(--alt);
  padding: 1.6rem 1.25rem;
  text-align: center; cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease;
}
.drop:hover, .drop:focus-visible, .drop.dragover {
  border-color: var(--blue-700);
  background: var(--blue-50);
}
.drop-glyph {
  width: 30px; height: 30px; stroke: var(--blue-700); fill: none;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
  margin-bottom: .45rem;
}
.drop-title { font-weight: 600; font-size: .98rem; }
.drop-hint { margin-top: .3rem; font-size: .82rem; color: var(--ink-3); }
.linklike { color: var(--blue-700); text-decoration: underline; text-underline-offset: 2px; }

.privacy {
  margin-top: .8rem;
  display: flex; gap: .5rem; align-items: flex-start;
  font-size: .78rem; line-height: 1.55; color: var(--ink-2);
}
.privacy svg {
  flex-shrink: 0; width: 15px; height: 15px; margin-top: .12rem;
  stroke: var(--good); fill: none; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.privacy strong { color: var(--ink); }

.samples { margin-top: 1rem; }
.samples-h { font-size: .82rem; font-weight: 600; color: var(--ink-2); }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .5rem; }
.chip {
  appearance: none; cursor: pointer;
  display: inline-flex; align-items: baseline; gap: .45rem;
  border: 1px solid var(--line); border-radius: 999px;
  background: #fff; color: var(--ink-2);
  font: inherit; font-size: .8rem; padding: .38rem .8rem;
  transition: border-color .15s ease, color .15s ease, background-color .15s ease;
}
.chip .n { font-family: var(--mono); font-size: .72rem; color: var(--ink-3); }
.chip .n.slow { color: var(--bad); }
.chip:disabled { opacity: .5; cursor: default; }
.chip:hover { border-color: var(--blue-700); color: var(--blue-800); background: var(--blue-50); }
.chip b { font-family: var(--mono); font-weight: 600; }
.chips-err { font-size: .8rem; color: var(--bad); }

.advanced { margin-top: .9rem; border-top: 1px solid var(--line-soft); padding-top: .7rem; }
.advanced summary {
  cursor: pointer; font-size: .82rem; font-weight: 600; color: var(--ink-2);
  list-style-position: inside;
}
.advanced summary:hover { color: var(--ink); }
.advanced-body { padding-top: .55rem; font-size: .82rem; color: var(--ink-2); }
.radios { display: flex; flex-wrap: wrap; gap: .35rem 1.1rem; margin-top: .5rem; }
.radios label { display: flex; align-items: center; gap: .38rem; cursor: pointer; font-size: .84rem; }
.radios input { accent-color: var(--blue-700); }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .demo-card { max-width: 560px; }
}

/* ---------- 변환 진행 ---------- */

.run { padding-block: 2.5rem 1rem; }
.run-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.phase { display: flex; align-items: baseline; gap: .6rem; }
.phase-label { font-weight: 600; font-size: 1.05rem; }
.phase-count { font-family: var(--mono); font-size: .85rem; color: var(--ink-3); }

.meter {
  margin-top: .9rem; height: 8px; border-radius: 999px;
  background: var(--line-soft); overflow: hidden;
}
/* app.js가 transform: scaleX()로 채운다 — width 애니메이션은 레이아웃을 흔든다. */
.meter-fill {
  display: block; height: 100%; width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue-700), #3f7bff);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .5s cubic-bezier(.2, .7, .3, 1);
}
.meter[data-indeterminate="true"] .meter-fill {
  transform: none;
  animation: meter-slide 1.4s cubic-bezier(.4, 0, .6, 1) infinite;
}
@keyframes meter-slide {
  0% { transform: translateX(-100%) scaleX(.4); }
  100% { transform: translateX(250%) scaleX(.4); }
}
.run-note { margin-top: .7rem; font-size: .85rem; color: var(--ink-3); }

.ghost {
  appearance: none; cursor: pointer;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: #fff; color: var(--ink-2);
  font: inherit; font-size: .84rem; font-weight: 500;
  padding: .42rem .9rem;
  transition: border-color .15s ease, color .15s ease;
}
.ghost:hover { border-color: var(--ink-3); color: var(--ink); }

/* ---------- 변환 결과 ---------- */

.result { padding-block: 2.5rem; }

.readout {
  display: flex; flex-wrap: wrap; gap: .8rem 2.2rem;
  font-size: .95rem; color: var(--ink-2);
}
.readout b { font-family: var(--mono); font-weight: 600; color: var(--ink); }

/* app.js cell(k, v, unit) — 결과 요약과 AI 판독 공용 */
.cell { display: flex; flex-direction: column; gap: .15rem; }
.cell .k { font-size: .76rem; font-weight: 600; color: var(--ink-3); }
.cell .v {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 1.05rem; font-weight: 600; color: var(--ink);
}
.cell .u { font-family: var(--sans); font-size: .78rem; font-weight: 400; color: var(--ink-3); margin-left: .25rem; }

.ai {
  margin-top: 1.4rem;
  border: 1px solid var(--blue-100);
  background: var(--blue-50);
  border-radius: var(--r);
  padding: 1rem 1.2rem;
}
.ai-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.ai-head h3 { font-size: .95rem; }
.ai-model { font-family: var(--mono); font-size: .74rem; color: var(--ink-3); }
.ai-body { margin-top: .6rem; display: flex; flex-wrap: wrap; gap: .5rem 2rem; }
.ai-facts { display: flex; flex-wrap: wrap; gap: .3rem 1.4rem; font-size: .88rem; color: var(--ink-2); }
.ai-facts b { color: var(--ink); font-weight: 600; }
.ai-evidence { font-size: .8rem; color: var(--ink-3); }
.ai-evidence-k { font-weight: 600; margin-right: .4rem; }
.ai-evidence q {
  font-family: var(--mono); font-size: .76rem;
  quotes: "\"" "\"";
  margin-right: .5rem;
}
.ai-verdict { margin-top: .55rem; font-size: .84rem; color: var(--ink-2); }
.ai-verdict[data-tone="applied"] { color: var(--good); }

.table-actions { margin-top: 1.4rem; display: flex; align-items: center; flex-wrap: wrap; gap: 1rem; }

.primary {
  display: inline-block; text-decoration: none; text-align: center;
  background: var(--blue-700); color: #fff;
  font-weight: 600; font-size: .95rem;
  border: 0; border-radius: var(--r-sm); cursor: pointer;
  padding: .68rem 1.4rem;
  transition: background-color .15s ease, transform .15s ease;
}
.primary:hover { background: var(--blue-800); }
.primary:active { transform: translateY(1px); }
.primary.big { font-size: 1.02rem; padding: .85rem 1.8rem; }

.expiry { font-size: .82rem; color: var(--ink-3); }

.compare {
  margin-top: 1.6rem;
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--alt);
  padding: 1.1rem 1.2rem 1.3rem;
}
.compare-head { display: flex; align-items: baseline; gap: .9rem; flex-wrap: wrap; }
.compare-head h3 { font-size: 1rem; }
.compare-meta { font-family: var(--mono); font-size: .8rem; color: var(--ink-3); flex: 1; }
.compare-grid {
  margin-top: .9rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
.compare-grid figure { margin: 0; }
.compare-grid figcaption { margin-top: .5rem; font-size: .8rem; color: var(--ink-3); }
.stage {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: #fff; overflow: hidden;
  touch-action: none;
}
.stage svg, .stage canvas { display: block; width: 100%; height: 100%; }
/* app.js가 dataset.state/message/hint로 상태를 알린다 */
.stage[data-state="loading"]::after,
.stage[data-state="error"]::after {
  content: attr(data-message);
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem; text-align: center;
  font-size: .84rem; color: var(--ink-3);
  background: var(--alt);
}
.stage[data-state="error"]::after { color: var(--bad); }
.stage[data-hint]::before {
  content: attr(data-hint);
  position: absolute; left: 50%; bottom: .5rem; transform: translateX(-50%);
  z-index: 1; pointer-events: none;
  font-size: .72rem; color: var(--ink-3);
  background: rgba(255, 255, 255, .85);
  border-radius: 999px; padding: .15rem .6rem;
}
@media (max-width: 720px) { .compare-grid { grid-template-columns: 1fr; } }

.table-hint { margin-top: 1.3rem; font-size: .84rem; color: var(--ink-3); }

.table-scroll { margin-top: .6rem; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); }
.parts { width: 100%; border-collapse: collapse; font-size: .88rem; }
.parts th, .parts td { text-align: left; padding: .6rem .9rem; border-bottom: 1px solid var(--line-soft); }
.parts thead th {
  font-size: .76rem; font-weight: 600; color: var(--ink-3);
  background: var(--alt); position: sticky; top: 0;
}
.parts tbody tr { cursor: pointer; transition: background-color .12s ease; }
.parts tbody tr:hover { background: var(--blue-50); }
.parts tbody tr[aria-selected="true"] { background: var(--blue-100); }
.parts tbody tr:last-child td { border-bottom: 0; }
.parts .num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.parts td.num { color: var(--ink-2); }
.parts a { color: var(--blue-800); }
.parts .files { display: inline-flex; gap: .7rem; }
.parts .files a { font-size: .8rem; }
.parts .name { font-weight: 500; }
.parts .ptype {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .72rem; font-weight: 600; color: var(--ink-2);
  background: var(--alt); border: 1px solid var(--line);
  border-radius: 999px; padding: .12rem .55rem;
}
.parts .ptype::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--dot, var(--blue-700));
}

.truncated { margin-top: .8rem; font-size: .84rem; color: var(--ink-3); }

/* 리드 게이트 — 결과 확인 직후가 상담을 물을 유일한 순간이다 */
.lead-gate {
  margin-top: 2rem;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--r);
  padding: 1.5rem 1.5rem 1.3rem;
}
.lead-gate-copy h3 { font-size: 1.05rem; }
.lead-gate-copy p { margin-top: .4rem; font-size: .87rem; color: var(--ink-2); max-width: 46rem; }
.lead-form {
  margin-top: 1rem;
  display: flex; flex-wrap: wrap; gap: .6rem;
}
.lead-form input {
  flex: 1 1 220px;
  font: inherit; font-size: .92rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: #fff; padding: .6rem .8rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.lead-form input::placeholder { color: var(--ink-3); }
.lead-form input:focus {
  outline: none; border-color: var(--blue-700);
  box-shadow: 0 0 0 3px var(--blue-100);
}
.lead-gate .form-msg { margin-top: .6rem; }

.fail { padding-block: 2.5rem; }
.fail h2 { font-size: 1.3rem; color: var(--bad); }
.fail p { margin-top: .6rem; color: var(--ink-2); }
.fail-help a { color: var(--blue-800); }

/* ---------- 섹션 공통 ---------- */

.section { padding-block: clamp(3rem, 7vw, 5rem); }
.section.alt { background: var(--alt); }

.section-h { font-size: clamp(1.45rem, 2.6vw, 1.9rem); }
.section-sub { margin-top: .7rem; color: var(--ink-2); max-width: 44rem; }

/* ---------- 변환 예시 (전/후) ---------- */

.showcase-grid {
  margin-top: 2rem;
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 1.25rem;
  align-items: center;
}
.showcase-card { margin: 0; }
.showcase-stage {
  border: 1px solid var(--line); border-radius: var(--r);
  background: #fff; overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-card);
}
.showcase-stage img, .showcase-stage canvas { display: block; width: 100%; height: 100%; object-fit: contain; }
.showcase-card figcaption {
  margin-top: .7rem; font-size: .88rem; color: var(--ink-2);
  display: flex; align-items: center; gap: .5rem;
}
.step-n {
  font-size: .72rem; font-weight: 700; color: var(--blue-800);
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: 999px; padding: .12rem .55rem;
}
.showcase-arrow svg {
  width: 40px; height: 24px; stroke: var(--blue-700); fill: none;
  stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round;
}
.showcase-note { margin-top: 1.4rem; font-size: .9rem; color: var(--ink-2); }
.showcase-note b { font-family: var(--mono); font-weight: 600; color: var(--ink); }

@media (max-width: 780px) {
  .showcase-grid { grid-template-columns: 1fr; }
  .showcase-arrow { justify-self: center; transform: rotate(90deg); }
}

/* ---------- 가치 4카드 (시안 고정 레이아웃) ---------- */

.values {
  margin-top: 2.2rem;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.value {
  background: #fff; border: 1px solid var(--line-soft);
  border-radius: var(--r); padding: 1.4rem 1.3rem;
  box-shadow: var(--shadow-card);
}
.value svg {
  width: 28px; height: 28px; stroke: var(--blue-700); fill: none;
  stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
.value h3 { margin-top: .8rem; font-size: 1rem; }
.value p { margin-top: .45rem; font-size: .86rem; color: var(--ink-2); }
@media (max-width: 960px) { .values { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .values { grid-template-columns: 1fr; } }

/* ---------- 동작 원리 3단계 ---------- */

.steps {
  margin: 2rem 0 0; padding: 0; list-style: none;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  border-top: 2px solid var(--blue-700);
  padding-top: 1.1rem;
}
.steps h3 { font-size: 1.02rem; display: flex; align-items: baseline; gap: .55rem; }
.steps h3::before {
  content: counter(step);
  font-family: var(--mono); font-size: .8rem; font-weight: 600;
  color: var(--blue-800);
}
.steps p { margin-top: .55rem; font-size: .88rem; color: var(--ink-2); }
@media (max-width: 780px) { .steps { grid-template-columns: 1fr; } }

.method-note { margin-top: 1.8rem; font-size: .84rem; color: var(--ink-3); }
.method-note code { font-family: var(--mono); font-size: .95em; }

/* ---------- 데스크톱 제품 ---------- */

.product-grid {
  margin-top: 2rem;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.product-copy p { margin-top: .8rem; color: var(--ink-2); }
.product-copy strong { color: var(--ink); }
.product-cta { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }

.secondary {
  display: inline-block; text-decoration: none; text-align: center;
  background: #fff; color: var(--blue-800);
  font-weight: 600; font-size: .95rem;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: .64rem 1.3rem; cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.secondary:hover { border-color: var(--blue-700); background: var(--blue-50); }

.diff { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #fff; }
.diff table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.diff th, .diff td { padding: .6rem .9rem; border-bottom: 1px solid var(--line-soft); text-align: left; }
.diff thead th { background: var(--alt); font-size: .78rem; color: var(--ink-3); font-weight: 600; }
.diff tbody th { font-weight: 500; color: var(--ink-2); width: 38%; }
.diff tbody tr:last-child th, .diff tbody tr:last-child td { border-bottom: 0; }
.diff .yes { color: var(--good); font-weight: 600; }
.diff .no { color: var(--ink-3); }

@media (max-width: 860px) { .product-grid { grid-template-columns: 1fr; } }

/* ---------- 네이비 밴드 (AI 기술 티저) ---------- */

.band {
  background: linear-gradient(150deg, var(--navy-950), var(--navy-900));
  color: var(--ink-on-navy);
  padding-block: clamp(3rem, 7vw, 5rem);
}
.band .section-h { color: #fff; }
.band .section-sub { color: var(--ink-on-navy-2); }

.band-grid {
  margin-top: 2rem;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
.band-item {
  border: 1px solid rgba(184, 201, 236, .22);
  border-radius: var(--r);
  padding: 1.3rem 1.25rem;
  background: rgba(255, 255, 255, .04);
}
.band-item h3 { font-size: 1rem; color: #fff; }
.band-item p { margin-top: .5rem; font-size: .86rem; color: var(--ink-on-navy-2); }
.band-item .ok-ico {
  width: 14px; height: 14px; vertical-align: -1px;
  stroke: var(--good-on-navy); fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.band-cta { margin-top: 1.8rem; }
.band-cta .secondary {
  background: transparent; color: #fff;
  border-color: rgba(184, 201, 236, .45);
}
.band-cta .secondary:hover { background: rgba(255, 255, 255, .08); border-color: #fff; }
@media (max-width: 780px) { .band-grid { grid-template-columns: 1fr; } }

/* ---------- 문의 + 원격지원 듀얼 CTA ---------- */

.contact-duo {
  margin-top: 2rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
}
.contact-card {
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 1.6rem 1.5rem;
  background: #fff; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; align-items: flex-start; gap: .6rem;
}
.contact-card h3 { font-size: 1.1rem; }
.contact-card p { font-size: .89rem; color: var(--ink-2); flex: 1; }
@media (max-width: 720px) { .contact-duo { grid-template-columns: 1fr; } }

/* ---------- 서브페이지 공통 ---------- */

.page-hero {
  background: linear-gradient(150deg, var(--navy-950), var(--navy-900));
  color: var(--ink-on-navy);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}
.page-hero h1 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); color: #fff; }
.page-hero p { margin-top: .8rem; color: var(--ink-on-navy-2); max-width: 40rem; }

.prose { max-width: 46rem; }
.prose p { margin-top: .8rem; color: var(--ink-2); }
.prose p:first-child { margin-top: 0; }
.prose strong { color: var(--ink); }
.prose ul { margin: .8rem 0 0; padding-left: 1.2rem; color: var(--ink-2); }
.prose li { margin-top: .35rem; }
.prose a { color: var(--blue-800); }

.spec { margin-top: 2rem; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.spec table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.spec th, .spec td { padding: .65rem 1rem; border-bottom: 1px solid var(--line-soft); text-align: left; }
.spec tbody tr:last-child th, .spec tbody tr:last-child td { border-bottom: 0; }
.spec tbody th { background: var(--alt); font-weight: 600; color: var(--ink-2); width: 26%; }

/* ---------- 문의 폼 ---------- */

.form-grid {
  margin-top: 2rem;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
@media (max-width: 860px) { .form-grid { grid-template-columns: 1fr; } }

.inquiry { display: grid; gap: 1rem; }
.field { display: grid; gap: .35rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }

.field label { font-size: .84rem; font-weight: 600; color: var(--ink-2); }
.field label b { color: var(--bad); font-weight: 600; }

.field input, .field select, .field textarea {
  font: inherit; font-size: .92rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: #fff; padding: .6rem .8rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-3); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blue-700);
  box-shadow: 0 0 0 3px var(--blue-100);
}
.field textarea { min-height: 9rem; resize: vertical; }

.form-note { font-size: .8rem; color: var(--ink-3); }
.form-msg { font-size: .9rem; font-weight: 600; }
.form-msg[data-tone="ok"] { color: var(--good); }
.form-msg[data-tone="err"] { color: var(--bad); }

.aside-card {
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--alt); padding: 1.4rem 1.3rem;
}
.aside-card h3 { font-size: 1rem; }
.aside-card p { margin-top: .5rem; font-size: .86rem; color: var(--ink-2); }
.aside-card a { color: var(--blue-800); }
.aside-card + .aside-card { margin-top: 1rem; }

/* 처리 절차 (문의·원격지원) */
.flow {
  margin: 2rem 0 0; padding: 0; list-style: none;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: .9rem;
  counter-reset: flow;
}
.flow li {
  counter-increment: flow;
  background: #fff; border: 1px solid var(--line-soft); border-radius: var(--r);
  padding: 1rem .9rem;
  box-shadow: var(--shadow-card);
}
.flow h3 { font-size: .88rem; display: flex; align-items: baseline; gap: .45rem; }
.flow h3::before {
  content: counter(flow);
  font-family: var(--mono); font-size: .74rem; font-weight: 600; color: var(--blue-800);
}
.flow p { margin-top: .4rem; font-size: .78rem; color: var(--ink-2); }
.flow.four { grid-template-columns: repeat(4, 1fr); }
.flow.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .flow, .flow.four, .flow.three { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .flow, .flow.four, .flow.three { grid-template-columns: 1fr; } }

/* FAQ */
.faq { margin-top: 2rem; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 1rem .2rem;
  font-weight: 600; font-size: .95rem;
  list-style-position: outside;
}
.faq summary:hover { color: var(--blue-800); }
.faq .faq-a { padding: 0 .2rem 1.1rem; font-size: .9rem; color: var(--ink-2); }

/* ---------- 신뢰 스트립 · 수치 원장 ---------- */

/* 히어로 바로 아래. 방문자가 스크롤하기 전에 검증 수치를 만난다. */
.trust-strip {
  background: var(--navy-950); color: var(--ink-on-navy-2);
  border-top: 1px solid rgba(184, 201, 236, .18);
  padding-block: .6rem; font-size: .8rem;
}
.trust-strip .wrap { display: flex; flex-wrap: wrap; gap: .35rem 2rem; }
.trust-strip b { font-family: var(--mono); color: #fff; font-weight: 600; }

.ledger {
  margin-top: 2rem;
  border: 1px solid var(--line); border-radius: var(--r);
  overflow: hidden; background: #fff; box-shadow: var(--shadow-card);
}
.ledger-row { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line-soft); }
.ledger-row:last-child { border-bottom: 0; }
.ledger-cell { padding: 1.1rem 1.3rem; border-right: 1px solid var(--line-soft); }
.ledger-cell:last-child { border-right: 0; }
.ledger-cell .k { display: block; font-size: .75rem; font-weight: 600; color: var(--ink-3); }
.ledger-cell .v {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 1.4rem; font-weight: 700; color: var(--ink);
}
.ledger-cell .u { font-family: var(--sans); font-size: .78rem; font-weight: 400; color: var(--ink-3); margin-left: .25rem; }

.biz-line {
  margin-top: 1.3rem; font-size: .8rem; color: var(--ink-3);
  display: flex; flex-wrap: wrap; gap: .3rem 1.5rem;
}

@media (max-width: 860px) { .ledger-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) {
  .ledger-row { grid-template-columns: 1fr; }
  .ledger-cell { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .ledger-row:last-child .ledger-cell:last-child { border-bottom: 0; }
}

/* ---------- 상담 위젯 (chat.js가 마크업을 생성한다) ---------- */

.chatw-fab {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 50;
  display: flex; align-items: center; gap: .55rem;
  appearance: none; border: 0; cursor: pointer;
  background: #FEE500; color: #191919;
  font: inherit; font-weight: 700; font-size: .92rem;
  border-radius: 999px; padding: .8rem 1.3rem;
  box-shadow: 0 3px 6px rgba(12, 36, 80, .16), 0 12px 28px rgba(12, 36, 80, .22);
  transition: transform .16s cubic-bezier(.2, .7, .3, 1), box-shadow .16s ease;
}
.chatw-fab:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(12,36,80,.18), 0 18px 36px rgba(12,36,80,.26); }
.chatw-fab svg { width: 20px; height: 20px; fill: #191919; flex-shrink: 0; }
.chatw.open .chatw-fab { transform: scale(.92); opacity: .9; }

/* display:flex는 UA의 [hidden]{display:none}과 특정도가 같아 나중 규칙이 이긴다.
   이 한 줄이 없으면 패널이 처음부터 열린 채로 뜬다. */
.chatw-panel[hidden] { display: none; }

.chatw-panel {
  position: fixed; right: 1.25rem; bottom: 5.2rem; z-index: 50;
  width: min(370px, calc(100vw - 2.5rem));
  height: min(520px, calc(100vh - 8rem));
  display: flex; flex-direction: column; overflow: hidden;
  background: #fff; color: var(--ink);
  border: 1px solid var(--line); border-radius: calc(var(--r) + 2px);
  box-shadow: 0 4px 10px rgba(12, 36, 80, .12), 0 24px 60px rgba(12, 36, 80, .28);
  animation: chatw-in .22s cubic-bezier(.2, .8, .3, 1);
}
@keyframes chatw-in {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to { opacity: 1; transform: none; }
}

.chatw-head {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .9rem 1rem; background: var(--navy-950); color: #fff;
  font-size: .95rem;
}
.chatw-close {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  padding: .2rem; line-height: 0; border-radius: 4px;
}
.chatw-close svg { width: 18px; height: 18px; stroke: var(--ink-on-navy-2); fill: none; stroke-width: 2; stroke-linecap: round; }
.chatw-close:hover svg { stroke: #fff; }

.chatw-log {
  flex: 1; overflow-y: auto;
  padding: 1rem; display: flex; flex-direction: column; gap: .6rem;
  background: var(--alt);
}
.chatw-msg {
  max-width: 85%; font-size: .88rem; line-height: 1.55;
  border-radius: var(--r); padding: .6rem .85rem;
  white-space: pre-wrap;
}
.chatw-msg.assistant { align-self: flex-start; background: #fff; border: 1px solid var(--line); }
.chatw-msg.user { align-self: flex-end; background: var(--blue-700); color: #fff; }
.chatw-msg.typing { color: var(--ink-3); letter-spacing: .1em; }
/* 시스템 안내(릴레이 연결·타임아웃) — 중앙 작은 텍스트 */
.chatw-msg.system {
  align-self: center; max-width: 95%;
  background: transparent; border: 0; padding: .25rem .4rem;
  color: var(--ink-3); font-size: .78rem; text-align: center;
  white-space: normal;
}
/* 담당자(Slack) 답장 — assistant 스타일 + 라벨 */
.chatw-msg.admin { border-color: var(--blue-700); }
.chatw-label {
  display: block; font-size: .68rem; font-weight: 700;
  color: var(--blue-700); letter-spacing: .02em;
  margin-bottom: .2rem;
}
.chatw-msg.user .chatw-label { color: rgba(255,255,255,.85); }
.chatw-msg-text { display: block; }

.chatw-kakao {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: .45rem;
  background: #FEE500; color: #191919; text-decoration: none;
  font-weight: 700; font-size: .86rem;
  border-radius: var(--r-sm); padding: .55rem 1rem;
}
.chatw-kakao svg { width: 17px; height: 17px; fill: #191919; }
.chatw-kakao:hover { filter: brightness(.96); }

.chatw-form {
  display: flex; gap: .5rem; padding: .7rem;
  border-top: 1px solid var(--line); background: #fff;
}
.chatw-form input {
  flex: 1; font: inherit; font-size: .9rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: .55rem .75rem; min-width: 0;
}
.chatw-form input::placeholder { color: var(--ink-3); }
.chatw-form input:focus { outline: none; border-color: var(--blue-700); box-shadow: 0 0 0 3px var(--blue-100); }
.chatw-send {
  appearance: none; border: 0; cursor: pointer;
  background: var(--blue-700); border-radius: var(--r-sm);
  padding: 0 .8rem; line-height: 0;
}
.chatw-send svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linejoin: round; }
.chatw-send:hover { background: var(--blue-800); }

/* 모바일: 패널이 화면을 거의 채우고, FAB은 아이콘만 남긴다 */
@media (max-width: 560px) {
  .chatw-fab { right: 1rem; bottom: 1rem; padding: .8rem; }
  .chatw-fab span { display: none; }
  .chatw-panel {
    right: .75rem; left: .75rem; bottom: 4.6rem;
    width: auto; height: min(70vh, 520px);
  }
}

/* ---------- 푸터 ---------- */

.foot {
  margin-top: 0;
  background: var(--navy-950); color: var(--ink-on-navy-2);
  padding-block: 2.8rem 2rem;
  font-size: .86rem;
}
.foot-grid {
  display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 2rem;
}
.foot-brand .mark-name { color: #fff; }
.foot-brand p { margin-top: .7rem; max-width: 22rem; }
.foot h3 { font-size: .8rem; font-weight: 600; color: #fff; letter-spacing: .02em; }
.foot ul { margin: .7rem 0 0; padding: 0; list-style: none; }
.foot li { margin-top: .4rem; }
.foot a { color: var(--ink-on-navy-2); text-decoration: none; }
.foot a:hover { color: #fff; text-decoration: underline; text-underline-offset: 2px; }
.foot-base {
  margin-top: 2.2rem; padding-top: 1.2rem;
  border-top: 1px solid rgba(184, 201, 236, .18);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem 1.5rem;
  font-size: .78rem;
}
@media (max-width: 780px) { .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .foot-grid { grid-template-columns: 1fr; } }

/* ---------- 모바일 마감 ----------
   현장 담당자는 작업 중에 휴대폰으로 연다. 손가락 타깃과 읽기 폭이 먼저다. */

@media (max-width: 700px) {
  /* 히어로: 카피가 화면을 다 먹지 않게 줄이고, 데모 카드를 빨리 만나게 한다 */
  .hero-grid { padding-block: 2.2rem 2.6rem; gap: 1.8rem; }
  .hero h1 { font-size: clamp(1.75rem, 8vw, 2.1rem); line-height: 1.2; }
  .hero-sub { font-size: .98rem; }
  .hero-record { font-size: .82rem; }
  .hero-outputs span { font-size: .72rem; padding: .25rem .6rem; }
  .demo-card { max-width: none; padding: 1.15rem; }

  .trust-strip { font-size: .76rem; }
  .trust-strip .wrap { flex-direction: column; gap: .3rem; }

  /* 터치 타깃 — 44px 확보 */
  .chip { padding: .55rem .9rem; }
  .primary, .secondary { padding: .75rem 1.3rem; }
  .primary.big { width: 100%; }
  .product-cta { flex-direction: column; align-items: stretch; }
  .product-cta .secondary { text-align: center; }

  /* 결과 표: 좁은 화면에서 가로 스크롤이 있다는 걸 보이게 한다 */
  .table-scroll { -webkit-overflow-scrolling: touch; }
  .parts th, .parts td { padding: .55rem .7rem; white-space: nowrap; }
  .table-actions { flex-direction: column; align-items: stretch; gap: .6rem; }
  .table-actions .primary { text-align: center; }

  .lead-gate { padding: 1.2rem 1.1rem; }
  .lead-form { flex-direction: column; }
  .lead-form input, .lead-form .primary { width: 100%; }

  .section { padding-block: 2.5rem; }
  .section-h { font-size: clamp(1.3rem, 5.5vw, 1.6rem); }
  .compare-head { gap: .5rem; }
  .compare-meta { flex-basis: 100%; }
}

@media (max-width: 700px) {
  /* 홈 인디케이터가 있는 기기에서 플로팅 버튼이 가려지지 않게 한다 */
  .chatw-fab { bottom: calc(1rem + env(safe-area-inset-bottom, 0px)); }
  .chatw-panel { bottom: calc(4.6rem + env(safe-area-inset-bottom, 0px)); }
  .foot { padding-bottom: calc(2rem + env(safe-area-inset-bottom, 0px)); }
}