/* =========================================================
   Paracle Mobility — Corporate Site
   Brand: Navy #052E5A / Teal #88CED6
   ========================================================= */

:root {
  /* brand */
  --navy-900: #041F3D;
  --navy-800: #052E5A;
  --navy-700: #0A3B6E;
  --navy-600: #12507F;
  --teal-500: #5FB6C4;
  --teal-400: #88CED6;
  --teal-300: #A9DDE3;
  --teal-100: #E4F4F6;

  /* neutrals */
  --ink: #0E1C2B;
  --ink-soft: #40546A;
  --ink-mute: #7A8CA0;
  --line: #E2E8EF;
  --bg: #FFFFFF;
  --bg-tint: #F5F9FB;

  /* layout */
  --maxw: 1180px;
  --gutter: 24px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 10px rgba(5, 46, 90, .06);
  --shadow-md: 0 12px 32px rgba(5, 46, 90, .10);
  --shadow-lg: 0 24px 60px rgba(5, 46, 90, .16);

  --ease: cubic-bezier(.22, .68, .32, 1);
  --header-h: 76px;

  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
          "Malgun Gothic", "맑은 고딕", system-ui, "Segoe UI", Roboto, sans-serif;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: break-word;
}
h1, h2, h3, h4, h5 { margin: 0; line-height: 1.32; letter-spacing: -.02em; font-weight: 700; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
table { border-collapse: collapse; width: 100%; }

.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-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--navy-800); color: #fff; padding: 12px 20px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--teal-500); outline-offset: 3px; border-radius: 4px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px;
  font-weight: 600; font-size: .975rem; letter-spacing: -.01em;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--navy-800); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--navy-700); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--teal-400); color: var(--navy-900); }
.btn-accent:hover { background: var(--teal-300); }
.btn-ghost { border: 1.5px solid rgba(5, 46, 90, .22); color: var(--navy-800); }
.btn-ghost:hover { border-color: var(--navy-800); background: rgba(5, 46, 90, .04); }
.btn-sm { padding: 10px 20px; font-size: .9rem; }
.btn-block { width: 100%; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background-color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, .94);
  border-bottom-color: var(--line);
  box-shadow: 0 4px 20px rgba(5, 46, 90, .05);
}
.header-inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; }
.brand-logo { height: 34px; width: auto; }

.nav { display: flex; align-items: center; gap: 28px; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link {
  position: relative; display: block; padding: 8px 14px;
  font-size: .94rem; font-weight: 600; color: var(--ink-soft);
  border-radius: 8px; transition: color .2s var(--ease);
}
.nav-link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  background: var(--teal-400); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav-link:hover { color: var(--navy-800); }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.nav-link.is-active { color: var(--navy-800); }

.nav-toggle { display: none; width: 44px; height: 44px; position: relative; }
.nav-toggle span {
  position: absolute; left: 11px; width: 22px; height: 2px; border-radius: 2px;
  background: var(--navy-800); transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.scroll-progress {
  position: absolute; left: 0; bottom: -1px; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--teal-500), var(--teal-300));
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + 88px) 0 104px;
  background: linear-gradient(168deg, #F7FBFC 0%, #EDF6F8 46%, #FFFFFF 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-wave {
  position: absolute; left: -12%; width: 124%; height: 340px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--teal-400);
  opacity: .55;
}
.hero-wave-1 { top: 46%; transform: rotate(-4deg); }
.hero-wave-2 { top: 58%; transform: rotate(3deg); opacity: .3; }
.hero-blob {
  position: absolute; right: -140px; top: -120px; width: 520px; height: 520px;
  background: radial-gradient(circle at 35% 35%, rgba(136, 206, 214, .38), rgba(136, 206, 214, 0) 68%);
  border-radius: 50%;
}

.hero-inner {
  position: relative;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center;
}

.eyebrow {
  font-size: .8rem; font-weight: 700; letter-spacing: .18em;
  color: var(--teal-500); text-transform: uppercase; margin-bottom: 18px;
}
.hero-title { font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 800; letter-spacing: -.035em; color: var(--navy-800); }
.accent-underline { position: relative; display: inline-block; color: var(--navy-800); }
.accent-underline::after {
  content: ""; position: absolute; left: -4%; right: -4%; bottom: .1em; height: .34em;
  background: var(--teal-400); opacity: .5; border-radius: 4px; z-index: -1;
}
.hero-lead { margin-top: 26px; font-size: 1.075rem; color: var(--ink-soft); line-height: 1.85; }
.hero-lead strong { color: var(--navy-800); font-weight: 700; }
.hero-lead em { font-style: normal; color: var(--teal-500); font-weight: 700; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px;
  margin-top: 52px; padding-top: 30px; border-top: 1px solid rgba(5, 46, 90, .12);
}
.hero-stat dt { font-size: .8rem; color: var(--ink-mute); letter-spacing: -.01em; line-height: 1.5; }
.hero-stat dd { margin: 6px 0 0; font-size: 1.9rem; font-weight: 800; color: var(--navy-800); letter-spacing: -.03em; line-height: 1.2; }
.hero-stat .unit { font-size: .95rem; font-weight: 700; margin-left: 3px; color: var(--teal-500); }

/* hero card */
.hero-visual { position: relative; }
.hero-card {
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow: hidden;
  transform: rotate(-1.2deg);
  transition: transform .5s var(--ease);
}
.hero-card:hover { transform: rotate(0deg) translateY(-4px); }
.hero-card-head {
  display: flex; align-items: center; gap: 7px;
  padding: 14px 20px; background: var(--navy-800);
}
.hero-card-head .dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .28); }
.hero-card-title {
  margin-left: auto; font-size: .68rem; font-weight: 700;
  letter-spacing: .16em; color: var(--teal-300);
}
.hero-card-body { padding: 26px 26px 24px; }
.spec-list li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding: 13px 0; border-bottom: 1px dashed var(--line);
}
.spec-list li:last-child { border-bottom: 0; }
.spec-list span { font-size: .86rem; color: var(--ink-mute); }
.spec-list strong { font-size: .96rem; font-weight: 700; color: var(--navy-800); text-align: right; }
.hero-card-badge {
  margin-top: 18px; padding: 12px; text-align: center; border-radius: 12px;
  background: var(--teal-100); color: var(--navy-800);
  font-weight: 700; font-size: .9rem; letter-spacing: .04em;
}

.scroll-cue {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: .66rem; font-weight: 700; letter-spacing: .22em; color: var(--ink-mute);
}
.scroll-cue-line { width: 1px; height: 38px; background: linear-gradient(var(--teal-400), transparent); animation: cue 1.9s var(--ease) infinite; }
@keyframes cue { 0%, 100% { opacity: .25; transform: scaleY(.5); transform-origin: top; } 50% { opacity: 1; transform: scaleY(1); } }

/* =========================================================
   SECTIONS
   ========================================================= */
.section { padding: 108px 0; }
.section-light { background: var(--bg); }
.section-tint { background: var(--bg-tint); }
.section-navy { background: var(--navy-800); color: #fff; }
.section-navy .section-desc,
.section-navy .about-text { color: rgba(255, 255, 255, .76); }
.section-navy .section-title { color: #fff; }

.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head-center { margin-left: auto; margin-right: auto; text-align: center; }
.section-eyebrow {
  font-size: .76rem; font-weight: 700; letter-spacing: .18em;
  color: var(--teal-500); margin-bottom: 16px;
}
.section-title { font-size: clamp(1.85rem, 3.6vw, 2.7rem); font-weight: 800; color: var(--navy-800); letter-spacing: -.03em; }
.section-desc { margin-top: 22px; font-size: 1.03rem; color: var(--ink-soft); line-height: 1.85; }
.section-desc strong { color: var(--navy-800); font-weight: 700; }
.section-navy .section-desc strong { color: var(--teal-300); }
.text-accent { color: var(--teal-500); }
.section-navy .text-accent { color: var(--teal-400); }
.block-title { font-size: 1.2rem; color: var(--navy-800); margin-bottom: 22px; }
.section-navy .block-title { color: #fff; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* =========================================================
   PROBLEM
   ========================================================= */
/* 카드 1(승하차 순간의 틈)은 17개 시·도 막대 리스트를 품고 있어 폭이 필요하므로
   2열 그리드에서 자기 혼자 한 행을 차지한다(.problem-card-wide). 2·3번 카드는
   그 아래 행에 나란히 놓인다. */
.problem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.problem-card-wide { grid-column: 1 / -1; }
.problem-card {
  position: relative; padding: 34px 30px 30px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.problem-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--teal-300); }
.problem-num {
  display: inline-block; font-size: .72rem; font-weight: 800; letter-spacing: .14em;
  color: var(--teal-500); margin-bottom: 14px;
}
.problem-card h3 { font-size: 1.2rem; color: var(--navy-800); margin-bottom: 14px; }
.problem-card p { font-size: .95rem; color: var(--ink-soft); }
.problem-card strong { color: var(--navy-800); font-weight: 700; }

/* 카드 안에 직접 그리는 그래프의 여백. compact 는 카드 2처럼 막대가 2개뿐이라
   위쪽 여백을 조금 줄인다. */
.problem-chart { margin-top: 24px; }
.problem-chart-compact { margin-top: 20px; }
/* 이 차트는 라벨이 "사고 경험"·"턱·장애물"처럼 4~5글자라 지역명(2글자)용
   56px 칸에 잘린다. 라벨 칸만 넓힌다 — 트랙·값 칸 폭은 그대로 둔다. */
.problem-chart-compact .bar-row,
.problem-chart-compact .bar-chart-axis { grid-template-columns: 84px 1fr 58px; }
.problem-chart .chart-sub { display: block; margin-bottom: 18px; }

.problem-punch {
  margin-top: 22px !important; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: 1.02rem !important; font-weight: 600; color: var(--navy-800) !important; line-height: 1.6;
}
.problem-punch strong { color: var(--teal-500); }

/* ---------------------------------------------------------
   차트 패널 (공용) — 지역별 저상버스 보급률 · 시장 성장 곡선 등
   .reveal 을 함께 달면 기존 IntersectionObserver 가 그대로 .is-visible 을
   붙여 주므로, 채움/드로인 애니메이션은 새 JS 없이 `.is-visible` 하나로 건다.
   --------------------------------------------------------- */
.chart-panel {
  margin-top: 40px; padding: 34px 32px 28px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.chart-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 14px; margin-bottom: 26px; }
.chart-head h3 { font-size: 1.05rem; color: var(--navy-800); font-weight: 700; }
.chart-tag {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .04em; color: var(--ink-mute);
  padding: 3px 9px; margin-right: 8px; border-radius: 999px; background: var(--bg-tint); border: 1px solid var(--line);
}
.chart-sub { flex-basis: 100%; font-size: .85rem; color: var(--ink-mute); }
.chart-foot { margin-top: 16px; font-size: .76rem; color: var(--ink-mute); }

/* --- 지역별 막대 리스트 ---
   .bar-chart(div, position:relative) 안에 .bar-chart-list(ol) 과 .bar-chart-avgline 을
   형제로 둔다 — ol 의 자식은 li 만 허용되므로 평균선을 li로 끼워 넣지 않는다. */
.bar-chart { position: relative; }
.bar-chart-list { list-style: none; margin: 0; padding: 0; }
.bar-row {
  display: grid; grid-template-columns: 56px 1fr 58px; align-items: center;
  gap: 10px; height: 19px; margin-bottom: 5px;
}
.bar-row-label {
  font-size: .76rem; font-weight: 600; color: var(--ink-soft); text-align: right;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.bar-row-track { position: relative; height: 11px; border-radius: 999px; background: var(--teal-100); overflow: hidden; }
.bar-row-fill {
  position: absolute; inset: 0 auto 0 0; width: 0; border-radius: 999px;
  background: var(--teal-500);
  transition: width 1.1s var(--ease);
}
.bar-row.is-max .bar-row-fill { background: var(--navy-800); }
.bar-row.is-min .bar-row-fill,
.bar-row.is-danger .bar-row-fill { background: #C86A6A; }
.bar-row.is-max .bar-row-label, .bar-row.is-max .bar-row-value { color: var(--navy-800); font-weight: 800; }
.bar-row.is-min .bar-row-label, .bar-row.is-min .bar-row-value,
.bar-row.is-danger .bar-row-label, .bar-row.is-danger .bar-row-value { color: #C86A6A; font-weight: 800; }
.bar-row-value {
  font-size: .76rem; color: var(--ink-mute); font-variant-numeric: tabular-nums;
}
/* 막대 폭의 기준 스케일. 기본 80(지역별 저상버스 보급률의 축 최댓값에 맞춤) —
   0~100% 처럼 그 자체가 스케일인 데이터는 style="--scale-max:100" 으로 넘긴다.
   .chart-panel 로 감싼 차트든 .problem-card 안에 바로 그린 차트든 둘 다 동작해야
   하므로 두 조상 클래스 모두에 대해 채움을 건다. */
.chart-panel.is-visible .bar-row-fill,
.problem-card.is-visible .bar-row-fill {
  width: calc(var(--v) / var(--scale-max, 80) * 100%);
}

/* --- 축 눈금 (막대가 적어 눈금이 있어야 스케일이 읽히는 미니 차트용) ---
   .bar-row 와 같은 grid-template-columns/gap 을 써서 트랙 위치에 그대로 맞춘다. */
.bar-chart-axis { display: grid; grid-template-columns: 56px 1fr 58px; gap: 10px; margin-top: 6px; }
.bar-chart-axis-ticks { display: flex; justify-content: space-between; font-size: .68rem; color: var(--ink-mute); }
.bar-chart-axis-ticks i { font-style: normal; }

.bar-chart-avgline {
  position: absolute; top: -4px; bottom: 0;
  left: calc(66px + (100% - 134px) * 0.555);
  border-left: 2px dashed var(--teal-500); opacity: 0;
  transition: opacity .5s var(--ease) .3s;
}
.chart-panel.is-visible .bar-chart-avgline,
.problem-card.is-visible .bar-chart-avgline { opacity: .85; }
.bar-chart-avgline span {
  position: absolute; top: -20px; left: 7px; white-space: nowrap;
  font-size: .72rem; font-weight: 700; color: var(--teal-500);
}

/* --- 범례 (색이 무엇을 뜻하는지) --- */
.chart-legend { display: flex; flex-wrap: wrap; gap: 14px 20px; margin-top: 18px; }
.chart-legend-item { display: flex; align-items: center; gap: 7px; font-size: .78rem; color: var(--ink-mute); }
.chart-legend-dot { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.chart-legend-dot.is-max { background: var(--navy-800); }
.chart-legend-dot.is-avg { border: 2px dashed var(--teal-500); background: none; width: 8px; height: 8px; }
.chart-legend-dot.is-min { background: #C86A6A; }

/* --- 시장 성장 곡선 (SVG line + area) --- */
.growth-chart-wrap { width: 100%; }
.growth-svg { width: 100%; height: auto; display: block; overflow: visible; }
.growth-area { fill: var(--teal-400); fill-opacity: .12; }
.growth-line {
  fill: none; stroke: var(--teal-500); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 900; stroke-dashoffset: 900;
  transition: stroke-dashoffset 1.6s var(--ease);
}
.chart-panel.is-visible .growth-line { stroke-dashoffset: 0; }
.growth-baseline { stroke: var(--line); stroke-width: 1; }
.growth-tick-label { fill: var(--ink-mute); font-size: 11px; font-family: var(--font); }
.growth-dot { fill: #fff; stroke: var(--teal-500); stroke-width: 2.5; opacity: 0; transition: opacity .4s var(--ease) 1.2s; }
.chart-panel.is-visible .growth-dot { opacity: 1; }
.growth-dot.is-end { stroke: var(--navy-800); }
.growth-value-label { font-family: var(--font); font-weight: 700; font-size: 13px; }
.growth-value-label.is-start { fill: var(--teal-500); }
.growth-value-label.is-end { fill: var(--navy-800); }

/* =========================================================
   SOLUTION — mechanism demo
   ========================================================= */
.mech {
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: center;
  padding: 36px; margin-bottom: 64px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(136, 206, 214, .22);
  border-radius: var(--radius-lg);
}
.mech-stage { position: relative; }
.mech-svg { width: 100%; height: auto; display: block; }

/* --- svg base --- */
.mech-svg text { font-family: var(--font); }
.mech-label { fill: var(--teal-300); font-size: 12.5px; font-weight: 700; }
.mech-caption { fill: rgba(255, 255, 255, .5); font-size: 12px; }

.mech-axis line { stroke: rgba(255, 255, 255, .28); stroke-width: 2; stroke-dasharray: 6 9; }
.mech-axis path { stroke: rgba(255, 255, 255, .4); stroke-width: 2.5; fill: none; stroke-linecap: round; stroke-linejoin: round; }

/* 라벨 */
.mech-gaplabel { fill: var(--teal-400); font-size: 12px; font-weight: 700; }

/* ===== 아이소메트릭 장면 =====
   대각선 위에서 내려다본 시점. 승강장 → 틈 → 전동차 순으로 깊이가 쌓인다. */
.iso-swivel { opacity: 1; transition: opacity .45s var(--ease); }
.iso-fixed { opacity: 0; transition: opacity .45s var(--ease); }

.mech-lever { transition: transform .5s var(--ease); }

.mech-status-free, .mech-status-lock {
  font-size: 13px; font-weight: 700; transition: opacity .35s var(--ease);
}
.mech-status-free { fill: #F0A9A9; opacity: 1; }
.mech-status-lock { fill: var(--teal-300); opacity: 0; }

/* ===== 캐스터 요 회전 =====
   바퀴는 원판이다. 원판을 세로축(요)으로 돌리면 그 정사영은 두 켤레 반지름
   A = P(굴림 방향), B = P(z) 로 정의되는 타원이 된다. 즉 단위원에
   matrix(Ax, Ay, Bx, By, Cx, Cy) 를 걸면 3D 회전이 그대로 재현된다.
   아래 행렬값은 gen_iso.py 가 요각별로 계산한 것이다. */
.iso-caster { transition: transform .55s var(--ease); }

/* --- 잠금 상태 --- */
.mech-svg.is-locked .mech-lever { transform: rotate(46deg); }
.mech-svg.is-locked .iso-swivel { opacity: 0; }
.mech-svg.is-locked .iso-fixed { opacity: 1; }
.mech-svg.is-locked .mech-status-free { opacity: 0; }
.mech-svg.is-locked .mech-status-lock { opacity: 1; }

/* 잠금: 바퀴 방향이 고정되어 두 앞바퀴가 직진 자세로 멈춘다 */
.mech-svg.is-locked .iso-caster-a { animation: none; transform: matrix(13.11, -3.73, 0, -14.62, 23.83, -34.81); }
.mech-svg.is-locked .iso-caster-b { animation: none; transform: matrix(13.11, -3.73, 0, -14.62, 54.81, -16.82); }

/* 잠금: 흔들림 없이 틈을 건너 전동차 안으로 들어갔다가 되돌아온다.
   이동량은 월드 +Y 로 112 만큼 간 것을 투영한 값 (96.99, -56). */
.mech-svg.is-locked .mech-chair { animation: isoEnter 5s ease-in-out infinite alternate; }
@keyframes isoEnter {
  0%, 16%   { transform: translate(0, 0); }
  84%, 100% { transform: translate(96.66px, -27.53px); }
}

/* 평상시: 두 앞바퀴가 제각각 돌아 틈 앞에서 방향을 못 잡고 덜컹거린다 */
.mech-svg:not(.is-locked) .iso-caster-a { animation: isoCasterA 3.6s ease-in-out infinite; }
.mech-svg:not(.is-locked) .iso-caster-b { animation: isoCasterB 3.6s ease-in-out infinite -1.3s; }
.mech-svg:not(.is-locked) .mech-chair { animation: isoStuck 3.6s ease-in-out infinite; }

@keyframes isoStuck {
  0%, 100% { transform: translate(0, 0); }
  30%      { transform: translate(8.22px, -2.34px); }
  45%      { transform: translate(10.63px, -3.03px); }
  60%      { transform: translate(8.22px, -2.34px); }
}

@keyframes isoCasterA {
  0%       { transform: matrix(13.11, -3.73, 0, -14.62, 23.83, -34.81); }
  8.333%   { transform: matrix(14.94, -2.33, 0, -14.62, 23.83, -34.81); }
  16.67%   { transform: matrix(15.88, -0.79, 0, -14.62, 23.83, -34.81); }
  25%      { transform: matrix(15.94, 0.57, 0, -14.62, 23.83, -34.81); }
  33.33%   { transform: matrix(15.94, -0.57, 0, -14.62, 23.83, -34.81); }
  41.67%   { transform: matrix(14.73, -2.54, 0, -14.62, 23.83, -34.81); }
  50%      { transform: matrix(13.11, -3.73, 0, -14.62, 23.83, -34.81); }
  58.33%   { transform: matrix(11.31, -4.6, 0, -14.62, 23.83, -34.81); }
  66.67%   { transform: matrix(9.63, -5.2, 0, -14.62, 23.83, -34.81); }
  75%      { transform: matrix(8.24, -5.58, 0, -14.62, 23.83, -34.81); }
  83.33%   { transform: matrix(10.07, -5.06, 0, -14.62, 23.83, -34.81); }
  91.67%   { transform: matrix(12.08, -4.27, 0, -14.62, 23.83, -34.81); }
  100%     { transform: matrix(13.11, -3.73, 0, -14.62, 23.83, -34.81); }
}

@keyframes isoCasterB {
  0%       { transform: matrix(13.11, -3.73, 0, -14.62, 54.81, -16.82); }
  8.333%   { transform: matrix(14.94, -2.33, 0, -14.62, 54.81, -16.82); }
  16.67%   { transform: matrix(15.88, -0.79, 0, -14.62, 54.81, -16.82); }
  25%      { transform: matrix(15.94, 0.57, 0, -14.62, 54.81, -16.82); }
  33.33%   { transform: matrix(15.94, -0.57, 0, -14.62, 54.81, -16.82); }
  41.67%   { transform: matrix(14.73, -2.54, 0, -14.62, 54.81, -16.82); }
  50%      { transform: matrix(13.11, -3.73, 0, -14.62, 54.81, -16.82); }
  58.33%   { transform: matrix(11.31, -4.6, 0, -14.62, 54.81, -16.82); }
  66.67%   { transform: matrix(9.63, -5.2, 0, -14.62, 54.81, -16.82); }
  75%      { transform: matrix(8.24, -5.58, 0, -14.62, 54.81, -16.82); }
  83.33%   { transform: matrix(10.07, -5.06, 0, -14.62, 54.81, -16.82); }
  91.67%   { transform: matrix(12.08, -4.27, 0, -14.62, 54.81, -16.82); }
  100%     { transform: matrix(13.11, -3.73, 0, -14.62, 54.81, -16.82); }
}

.mech-state {
  display: inline-flex; align-items: center; gap: 9px;
  margin-top: 6px; padding: 8px 16px; border-radius: 999px;
  background: rgba(240, 169, 169, .14); border: 1px solid rgba(240, 169, 169, .4);
  font-size: .82rem; font-weight: 700; color: #F3BEBE;
  transition: background-color .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
}
.mech-state-dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.mech-state.is-locked {
  background: rgba(136, 206, 214, .16); border-color: rgba(136, 206, 214, .5); color: var(--teal-300);
}

.mech-title { font-size: 1.35rem; color: #fff; margin-bottom: 16px; }
.mech-text { font-size: .96rem; color: rgba(255, 255, 255, .78); line-height: 1.8; min-height: 8.5em; }
.mech-btn { margin-top: 20px; }
.mech-btn-icon {
  width: 18px; height: 18px; border-radius: 4px;
  border: 2.5px solid currentColor; border-bottom-width: 8px;
  transition: transform .3s var(--ease);
}
.mech-btn[aria-pressed="true"] .mech-btn-icon { transform: rotate(-90deg); }
.mech-hint { margin-top: 12px; font-size: .8rem; color: rgba(255, 255, 255, .45); }

/* features */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card {
  padding: 32px 28px; border-radius: var(--radius);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: transform .35s var(--ease), background-color .35s var(--ease), border-color .35s var(--ease);
}
.feature-card:hover { transform: translateY(-6px); background: rgba(255, 255, 255, .1); border-color: rgba(136, 206, 214, .45); }
.feature-icon {
  width: 50px; height: 50px; border-radius: 14px; margin-bottom: 20px;
  display: grid; place-items: center; background: rgba(136, 206, 214, .16);
}
.feature-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--teal-400); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { font-size: 1.13rem; color: #fff; margin-bottom: 12px; }
.feature-card p { font-size: .92rem; color: rgba(255, 255, 255, .7); }

.solution-note {
  display: flex; gap: 26px; align-items: flex-start;
  margin-top: 40px; padding: 32px;
  background: rgba(136, 206, 214, .09);
  border: 1px solid rgba(136, 206, 214, .25);
  border-radius: var(--radius);
}
.solution-note-mark {
  flex: none; width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--teal-400); color: var(--navy-900);
  font-weight: 800; font-size: 1.05rem; letter-spacing: .04em;
}
.solution-note h4 { font-size: 1.05rem; color: #fff; margin-bottom: 10px; }
.solution-note p { font-size: .93rem; color: rgba(255, 255, 255, .74); }
.solution-note strong { color: var(--teal-300); }
.solution-note em { font-style: italic; color: rgba(255, 255, 255, .9); }

/* =========================================================
   COMPARE TABLE
   ========================================================= */
.table-scroll { position: relative; }
/* 표가 잘려 있다는 신호 — 끝까지 스크롤하면 사라진다 */
.table-scroll::after {
  content: ""; position: absolute; top: 0; right: 0; width: 56px; height: 100%;
  pointer-events: none; border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, .92));
  opacity: 0; transition: opacity .3s var(--ease);
}
.table-scroll.is-scrollable::after { opacity: 1; }
.table-scroll.is-scrolled-end::after { opacity: 0; }

.table-hint {
  display: none; margin-bottom: 10px;
  font-size: .8rem; font-weight: 600; color: var(--ink-mute);
}
.table-hint::after { content: " →"; color: var(--teal-500); }
.table-scroll.is-scrollable .table-hint { display: block; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.compare-table { min-width: 760px; background: #fff; }
.compare-table th, .compare-table td { padding: 20px 22px; text-align: left; font-size: .94rem; }
.compare-table thead th {
  background: var(--bg-tint); color: var(--navy-800); font-weight: 700;
  border-bottom: 1px solid var(--line); vertical-align: bottom;
}
.compare-table thead th small { display: block; font-weight: 500; font-size: .76rem; color: var(--ink-mute); margin-top: 2px; }
.compare-table thead th.is-ours { background: var(--navy-800); color: #fff; }
.th-brand {
  display: block; font-size: .7rem; letter-spacing: .16em; font-weight: 800;
  color: var(--teal-300); margin-bottom: 4px;
}
.compare-table tbody th { font-weight: 600; color: var(--ink-soft); background: #FBFDFE; }
.compare-table tbody tr { border-top: 1px solid var(--line); }
.compare-table tbody td { color: var(--ink-soft); }
.compare-table tbody td.is-ours { background: rgba(136, 206, 214, .1); color: var(--navy-800); font-weight: 700; }
.chip {
  display: inline-block; padding: 5px 13px; border-radius: 999px;
  font-size: .85rem; font-weight: 700;
}
.chip-good { background: var(--navy-800); color: #fff; }
.compare-foot { margin-top: 18px; font-size: .82rem; color: var(--ink-mute); }

/* =========================================================
   MARKET
   ========================================================= */
.market-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 14px; }
.market-stats-foot { font-size: .78rem; color: var(--ink-mute); }
.market-stat {
  padding: 30px 26px; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.market-stat:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.market-stat-value { font-size: 2.15rem; font-weight: 800; color: var(--navy-800); letter-spacing: -.035em; line-height: 1.15; }
.market-stat-value .unit { font-size: .95rem; font-weight: 700; color: var(--teal-500); margin-left: 4px; }
.market-stat-label { margin-top: 10px; font-size: .85rem; color: var(--ink-mute); line-height: 1.55; }
.market-stat-label b { color: var(--navy-800); }

.market-split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 64px; }

.target-list li { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px dashed var(--line); }
.target-list li:last-child { border-bottom: 0; }
.target-step {
  flex: none; width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--navy-800); color: #fff; font-size: .82rem; font-weight: 700;
}
.target-list h4 { font-size: 1.03rem; color: var(--navy-800); margin-bottom: 5px; }
.target-list p { font-size: .89rem; color: var(--ink-mute); }

.bm-cards { display: grid; gap: 14px; }
.bm-card {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px 24px; background: #fff; border: 1px solid var(--line); border-radius: 14px;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.bm-card:hover { border-color: var(--teal-400); transform: translateX(4px); }
.bm-tag {
  flex: none; padding: 5px 12px; border-radius: 8px;
  background: var(--teal-100); color: var(--navy-800);
  font-size: .78rem; font-weight: 800; letter-spacing: .04em;
}
.bm-card p { font-size: .89rem; color: var(--ink-soft); }

.gtm-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gtm-step {
  position: relative; padding: 28px 26px;
  background: #fff; border-radius: var(--radius); border: 1px solid var(--line);
}
.gtm-step::before {
  content: ""; position: absolute; left: 26px; right: 26px; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--teal-300)); border-radius: 0 0 3px 3px;
}
.gtm-num { font-size: .7rem; font-weight: 800; letter-spacing: .16em; color: var(--teal-500); }
.gtm-step h4 { font-size: 1.08rem; color: var(--navy-800); margin: 10px 0 10px; }
.gtm-step p { font-size: .89rem; color: var(--ink-soft); }

/* =========================================================
   ROADMAP
   ========================================================= */
.timeline { position: relative; padding-left: 34px; margin-bottom: 72px; }
.timeline::before {
  content: ""; position: absolute; left: 15px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--teal-400), var(--teal-100));
}
.timeline-item { position: relative; display: flex; gap: 22px; padding: 18px 0; }
.timeline-marker {
  position: absolute; left: -34px; top: 20px;
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  background: #fff; border: 2px solid var(--teal-400);
  color: var(--navy-800); font-size: .82rem; font-weight: 800;
}
.timeline-body h3 { font-size: 1.12rem; color: var(--navy-800); margin-bottom: 8px; }
.timeline-body p { font-size: .93rem; color: var(--ink-soft); max-width: 780px; }

.rounds-desc { max-width: 680px; margin: -10px 0 26px; font-size: .95rem; color: var(--ink-soft); }
.round-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.round-card {
  padding: 26px 24px; border-radius: var(--radius);
  background: var(--bg-tint); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 14px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.round-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.round-card header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.round-tag {
  padding: 5px 12px; border-radius: 8px; background: var(--navy-800); color: #fff;
  font-size: .76rem; font-weight: 700;
}
.round-phase { font-size: .82rem; color: var(--ink-mute); font-weight: 600; }
.round-card p { font-size: .87rem; color: var(--ink-soft); }
.round-fund {
  margin-top: auto !important; padding-top: 14px; border-top: 1px dashed var(--line);
  font-weight: 700; color: var(--navy-800) !important; font-size: .84rem !important;
}
.round-card.is-final { background: var(--navy-800); border-color: var(--navy-800); }
.round-card.is-final .round-tag { background: var(--teal-400); color: var(--navy-900); }
.round-card.is-final .round-phase { color: rgba(255, 255, 255, .6); }
.round-card.is-final p { color: rgba(255, 255, 255, .78); }
.round-card.is-final .round-fund { color: var(--teal-300) !important; border-top-color: rgba(255, 255, 255, .18); }

/* =========================================================
   ABOUT
   ========================================================= */
.about-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: start; }
.about-text { margin-top: 22px; font-size: 1rem; line-height: 1.9; }
.about-text strong { color: var(--teal-300); font-weight: 700; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.value { padding-top: 18px; border-top: 2px solid rgba(136, 206, 214, .4); }
.value h4 { font-size: 1.02rem; color: var(--teal-400); margin-bottom: 8px; letter-spacing: .01em; }
.value p { font-size: .875rem; color: rgba(255, 255, 255, .66); }

.about-card {
  padding: 34px 32px; border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
}
.about-card-logo { width: 168px; margin-bottom: 26px; }
.about-meta div {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 12px 0; border-bottom: 1px dashed rgba(255, 255, 255, .15);
}
.about-meta dt { font-size: .84rem; color: rgba(255, 255, 255, .55); }
.about-meta dd { margin: 0; font-size: .9rem; font-weight: 700; color: #fff; text-align: right; }
.about-card-quote {
  margin-top: 26px; padding: 20px; border-radius: 12px;
  background: rgba(136, 206, 214, .12);
  font-size: .92rem; line-height: 1.7; color: var(--teal-300); font-weight: 600;
}

/* =========================================================
   CTA / CONTACT
   ========================================================= */
.section-cta {
  background: linear-gradient(160deg, #EDF6F8 0%, #F8FBFC 100%);
  border-top: 1px solid var(--line);
}
.cta-inner { max-width: 700px; margin: 0 auto; text-align: center; }
.cta-title { font-size: clamp(1.8rem, 3.6vw, 2.5rem); font-weight: 800; color: var(--navy-800); letter-spacing: -.03em; }
.cta-desc { margin-top: 18px; font-size: 1rem; color: var(--ink-soft); }

.contact-form { margin-top: 40px; text-align: left; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: block; margin-bottom: 16px; }
.field > span { display: block; font-size: .85rem; font-weight: 600; color: var(--navy-800); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; padding: 14px 16px;
  font-family: inherit; font-size: .95rem; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
  resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: #AFBECD; }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--teal-400);
  box-shadow: 0 0 0 4px rgba(136, 206, 214, .22);
}
.field input.is-error, .field textarea.is-error { border-color: #E08585; box-shadow: 0 0 0 4px rgba(224, 133, 133, .16); }

/* 스팸봇 유인 필드 — 화면에서 감추되 display:none은 피한다
   (일부 봇은 display:none 필드를 건너뛴다) */
.gotcha {
  position: absolute !important; left: -9999px !important;
  width: 1px; height: 1px; opacity: 0; pointer-events: none;
}

.consent {
  display: flex; align-items: flex-start; gap: 10px;
  margin: 4px 0 18px; cursor: pointer;
}
.consent input {
  flex: none; width: 20px; height: 20px; margin: 2px 0 0;
  accent-color: var(--navy-800); cursor: pointer;
}
.consent span { font-size: .82rem; line-height: 1.65; color: var(--ink-mute); }
.consent strong { display: block; color: var(--navy-800); font-weight: 700; margin-bottom: 2px; }

.btn:disabled { opacity: .6; cursor: progress; transform: none; }

.form-status { margin-top: 14px; font-size: .88rem; text-align: center; min-height: 1.5em; font-weight: 600; }
.form-status.is-ok { color: var(--teal-500); }
.form-status.is-err { color: #C86A6A; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { background: var(--navy-900); color: rgba(255, 255, 255, .72); padding: 66px 0 30px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 48px; justify-content: space-between; }
.footer-logo { width: 176px; margin-bottom: 18px; }
.footer-brand p { font-size: .88rem; line-height: 1.75; color: rgba(255, 255, 255, .55); }
.footer-nav { display: flex; gap: 64px; }
.footer-nav h5 { font-size: .82rem; color: #fff; margin-bottom: 14px; letter-spacing: .02em; }
.footer-nav li { margin-bottom: 9px; }
.footer-nav a { font-size: .88rem; color: rgba(255, 255, 255, .58); transition: color .2s var(--ease); }
.footer-nav a:hover { color: var(--teal-400); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .1);
}
.footer-bottom small { font-size: .78rem; color: rgba(255, 255, 255, .4); }

/* to top */
.to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--navy-800); box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s, background-color .25s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--navy-700); }
.to-top svg { width: 20px; height: 20px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 460px; }
  .mech { grid-template-columns: 1fr; }
  .mech-text { min-height: 0; }
  .market-stats { grid-template-columns: repeat(2, 1fr); }
  .market-split { grid-template-columns: 1fr; gap: 48px; }
  .round-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }

  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 18px var(--gutter) 26px;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-link { padding: 14px 4px; font-size: 1rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-link::after { display: none; }
  .nav-cta { margin-top: 18px; align-self: flex-start; }
  .nav-toggle { display: block; }
  /* 로고 자체는 28px이지만 탭 영역은 44px 이상 확보 */
  .brand { padding: 8px 0; }
  .brand-logo { height: 28px; }
  /* 메뉴가 열려 있는 동안 뒤 본문이 스크롤되지 않도록 */
  body.nav-open { overflow: hidden; }

  .section { padding: 76px 0; }
  .hero { padding: calc(var(--header-h) + 60px) 0 84px; }
  /* 좁은 화면에서는 강제 줄바꿈을 풀어 자연스럽게 흐르게 한다 */
  .hero-lead br, .hero-title br, .section-title br, .cta-title br,
  .problem-punch br, .about-card-quote br, .footer-brand p br { display: none; }
  /* 장식용 곡선이 지표 위를 가로질러 지저분해 보인다 */
  .hero-wave { display: none; }
  .hero-stats { grid-template-columns: 1fr; gap: 18px; }
  .hero-stat { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
  .hero-stat dd { font-size: 1.55rem; }
  .scroll-cue { display: none; }

  /* 태블릿에서는 2열, 좁은 폰에서는 1열로 자연스럽게 접힌다 */
  .problem-grid, .feature-grid, .gtm-steps { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
  .values { grid-template-columns: 1fr; gap: 16px; }
  .solution-note { flex-direction: column; gap: 18px; }
  .form-row { grid-template-columns: 1fr; }
  /* iOS Safari가 16px 미만 입력란에 포커스하면 화면을 확대한다 */
  .field input, .field textarea { font-size: 16px; }
  .footer-inner { flex-direction: column; gap: 36px; }
  .footer-nav { gap: 48px; }
  .footer-nav li { margin-bottom: 0; }
  .footer-nav a { display: inline-flex; align-items: center; min-height: 44px; }

  .mech { padding: 22px 14px; }
}

/* SVG는 통째로 축소되므로 도식이 작아질 때만 라벨 단위를 키워 실제 표시 크기를 11~13px로 유지한다.
   (태블릿 이상에서는 도식과 함께 자연스럽게 커지므로 건드리지 않는다) */
@media (max-width: 520px) {
  .mech-label { font-size: 15px; }
  .mech-caption, .mech-gaplabel { font-size: 14px; }
  .mech-status-free, .mech-status-lock { font-size: 15px; }
}
@media (max-width: 380px) {
  .mech-label { font-size: 17px; }
  .mech-caption, .mech-gaplabel { font-size: 16px; }
  .mech-status-free, .mech-status-lock { font-size: 16px; }
}

@media (max-width: 520px) {
  body { font-size: 15px; }
  .market-stats, .round-grid { grid-template-columns: 1fr; }
  .hero-card { transform: none; }
  .timeline { padding-left: 30px; }
  .to-top { right: 16px; bottom: 16px; }
  /* 한 줄에 들어가도록 자간을 줄인다 */
  .eyebrow { font-size: .72rem; letter-spacing: .12em; }
  .section-eyebrow { letter-spacing: .12em; }

  /* 차트 : 좁은 화면에서는 여백·라벨 폭을 줄여 트랙(막대) 공간을 확보한다 */
  .chart-panel { margin-top: 28px; padding: 24px 18px 20px; }
  .bar-row, .bar-chart-axis { grid-template-columns: 40px 1fr 46px; gap: 6px; }
  .bar-row-label, .bar-row-value { font-size: .68rem; }
  .bar-chart-avgline { left: calc(46px + (100% - 98px) * 0.555); }
  /* "사고 경험"·"턱·장애물"은 40px에 잘리므로 이 차트만 라벨 칸을 유지한다 */
  .problem-chart-compact .bar-row,
  .problem-chart-compact .bar-chart-axis { grid-template-columns: 68px 1fr 46px; gap: 6px; }
  .growth-tick-label { font-size: 13px; }
  .growth-value-label { font-size: 15px; }
}

@media (max-width: 400px) {
  :root { --gutter: 18px; }
  /* 좁은 폭에서는 버튼을 꽉 채워 누르기 쉽게 */
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-title { font-size: 2.15rem; }
  /* 라벨과 값이 한 줄에 들어가지 않아 세로로 쌓는다 */
  .about-card { padding: 28px 22px; }
  .about-meta div { flex-direction: column; align-items: flex-start; gap: 2px; }
  .about-meta dd { text-align: left; }
  .hero-card-body { padding: 22px 20px 20px; }
  .spec-list li { flex-direction: column; align-items: flex-start; gap: 4px; }
  .spec-list strong { text-align: left; }
}

/* 터치 기기는 화면이 넓어도 손가락으로 누르므로 탭 영역을 확보한다
   (예: 가로 모드 태블릿 — 데스크톱 레이아웃이지만 입력은 터치) */
@media (pointer: coarse) {
  .brand { padding: 8px 0; }
  .footer-nav li { margin-bottom: 0; }
  .footer-nav a { display: inline-flex; align-items: center; min-height: 44px; }
  .nav-link { padding-top: 12px; padding-bottom: 12px; }
  /* 터치에는 hover 상태가 남아 어색하므로 이동 효과를 줄인다 */
  .btn:hover, .problem-card:hover, .feature-card:hover,
  .market-stat:hover, .round-card:hover, .bm-card:hover { transform: none; }
  .hero-card:hover { transform: rotate(-1.2deg); }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* 캐스터 락 데모는 장식이 아니라 작동 원리를 보여주는 설명 장치이므로
   "동작 감소" 환경에서도 예외로 두고 항상 재생한다. 위 블록보다 선택자
   구체성이 높아 순서와 무관하게 이 규칙이 이긴다. */
.mech-svg:not(.is-locked) .iso-caster-a,
.mech-svg:not(.is-locked) .iso-caster-b,
.mech-svg:not(.is-locked) .mech-chair {
  animation-duration: 3.6s !important;
  animation-iteration-count: infinite !important;
}
.mech-svg.is-locked .mech-chair {
  animation-duration: 5s !important;
  animation-iteration-count: infinite !important;
}
.mech-svg .iso-caster { transition-duration: .55s !important; }
.mech-svg .mech-lever { transition-duration: .5s !important; }
.mech-svg .iso-swivel { transition-duration: .45s !important; }
.mech-svg .iso-fixed { transition-duration: .45s !important; }
.mech-svg .mech-status-free,
.mech-svg .mech-status-lock { transition-duration: .35s !important; }
.mech-state { transition-duration: .3s !important; }

/* print */
@media print {
  .site-header, .to-top, .scroll-cue, .mech-btn, .contact-form { display: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .section { padding: 32px 0; break-inside: avoid; }
  .section-navy { background: #fff !important; color: #000 !important; }
}