/* ============================================================
   YK Professional — Customer Cost Calculator v1
   Mobile-first responsive. Friendly tone (vs sales-only v5.1).
   ============================================================ */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700;900&family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  --navy: #11223E;
  --navy-700: #1B2F50;
  --navy-900: #0A1528;
  --teal: #60BFD4;
  --teal-deep: #2A8FA8;
  --linen: #F4EEE9;
  --eco: #0C714F;

  --white: #FFFFFF;
  --bg: #FBFBFC;
  --bg-warm: #F7F4F1;
  --bg-cool: #F2F4F7;
  --surface: #FFFFFF;
  --surface-2: #F9FAFB;

  --ink: #181E27;
  --ink-2: #2C3340;
  --muted: #606670;
  --muted-2: #97989B;
  --disabled: #C2C6CD;
  --border: #E4E6EA;
  --border-strong: #C2C6CD;
  --divider: #EEF0F3;

  --pos: #0C714F;
  --warn: #B45309;
  --error: #B42318;

  --shadow-xs: 0 1px 2px rgba(17, 34, 62, 0.05);
  --shadow-sm: 0 2px 6px rgba(17, 34, 62, 0.06), 0 1px 2px rgba(17, 34, 62, 0.04);
  --shadow-md: 0 8px 24px rgba(17, 34, 62, 0.10), 0 2px 6px rgba(17, 34, 62, 0.05);
  --shadow-lg: 0 24px 56px rgba(17, 34, 62, 0.14), 0 4px 12px rgba(17, 34, 62, 0.06);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-pill: 999px;

  --font-sans: 'Lato', 'Pretendard', 'Pretendard Variable', 'Noto Sans KR', -apple-system, system-ui, sans-serif;
  --font-display: 'Playfair Display', 'Lato', Georgia, serif;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --dur: 240ms;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "tnum" 1, "ss01" 1;
  font-size: 15px;
  line-height: 1.55;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, button { font-family: inherit; color: inherit; }
input[type="number"] { -moz-appearance: textfield; }
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
a { color: var(--teal-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

#yk-calc-cust-root {
  min-height: 100vh;
  background: var(--bg);
}

/* ============== HERO ============== */
.cs-hero {
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, rgba(96,191,212,0.45) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 0% 100%, rgba(96,191,212,0.18) 0%, transparent 60%),
    linear-gradient(135deg, var(--navy-900) 0%, var(--navy) 60%, var(--teal-deep) 130%);
  color: var(--white);
  overflow: hidden;
}
.cs-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
  opacity: 0.6;
}
.cs-hero__inner {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 24px 20px 36px;
  z-index: 1;
}
.cs-hero__topline {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 16px;
}
.cs-hero__brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; letter-spacing: 0.04em; font-size: 14px;
}
.cs-hero__brand-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 0 4px rgba(96,191,212,0.25);
}
.cs-hero__brand-sub {
  font-weight: 400; font-size: 12px; opacity: 0.75; margin-left: 4px;
}
.cs-hero__pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.20);
  padding: 5px 12px; border-radius: var(--r-pill);
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
}
.cs-hero__pill .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal); animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}
.cs-hero__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700; line-height: 1.15;
  margin: 0 0 12px;
}
.cs-hero__title em {
  font-style: italic; color: var(--teal); font-weight: 400;
}
.cs-hero__sub {
  font-size: clamp(14px, 2.2vw, 17px);
  opacity: 0.88; max-width: 680px;
  margin: 0 0 18px;
}
/* v5.1.3 C7 — cs-hero__meta / cs-hero__chip 셀렉터는 hero 칩 제거(2026-05-24)로 dead code → 삭제 */

/* ============== TABS (핸드타월 / 점보롤 / 통합) ============== */
.cs-tabs {
  max-width: 920px;
  margin: 0 auto;
  padding: 18px 20px 4px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.cs-tab {
  flex: 1 1 200px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--r-lg);
  text-align: left;
  transition: all var(--dur);
  position: relative;
}
.cs-tab:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.cs-tab.is-active {
  border-color: var(--navy);
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.cs-tab.is-done:not(.is-active) {
  border-color: var(--eco);
  background: rgba(12, 113, 79, 0.04);
}
.cs-tab.is-done:not(.is-active)::after {
  content: "✓";
  position: absolute;
  top: 10px; right: 12px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--eco);
  color: var(--white);
  font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}
.cs-tab__num {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-cool);
  color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700; font-size: 16px;
}
.cs-tab.is-active .cs-tab__num {
  background: var(--teal); color: var(--navy-900);
}
.cs-tab.is-done:not(.is-active) .cs-tab__num {
  background: var(--eco); color: var(--white);
}
.cs-tab__body {
  display: flex; flex-direction: column; gap: 2px;
  min-width: 0;
}
.cs-tab__label {
  font-weight: 700; font-size: 15px;
  color: inherit;
}
.cs-tab__sub {
  font-size: 11px;
  color: var(--muted);
  font-weight: 500;
}
.cs-tab.is-active .cs-tab__sub { color: rgba(255,255,255,0.7); }
@media (max-width: 640px) {
  .cs-tabs { gap: 6px; padding: 14px 14px 0; }
  .cs-tab { flex: 1 1 100%; padding: 10px 12px; }
  .cs-tab__sub { display: none; }
}

/* ============== PROGRESS ============== */
.cs-prog {
  max-width: 920px; margin: 0 auto;
  padding: 22px 20px 6px;
  display: flex; align-items: center;
  gap: 8px;
}
.cs-prog__step {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--muted-2); font-size: 13px; font-weight: 500;
  transition: color var(--dur);
}
.cs-prog__num {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--bg-cool); color: var(--muted-2);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
  border: 1.5px solid var(--border);
  transition: all var(--dur);
}
.cs-prog__step.is-active { color: var(--navy); }
.cs-prog__step.is-active .cs-prog__num {
  background: var(--navy); color: var(--white); border-color: var(--navy);
}
.cs-prog__step.is-done { color: var(--eco); }
.cs-prog__step.is-done .cs-prog__num {
  background: var(--eco); color: var(--white); border-color: var(--eco);
}
.cs-prog__step.is-done .cs-prog__num::after { content: "✓"; }
.cs-prog__step.is-done .cs-prog__num span,
.cs-prog__step.is-done .cs-prog__num { font-size: 0; }
.cs-prog__step.is-done .cs-prog__num::after { font-size: 14px; }
.cs-prog__bar {
  flex: 1; height: 2px; background: var(--divider);
  border-radius: 2px;
}
@media (max-width: 600px) {
  .cs-prog__label { display: none; }
  .cs-prog { padding: 16px 16px 0; }
}
.cs-prog--combined {
  justify-content: center;
  color: var(--muted);
}
.cs-prog__msg {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--bg-cool);
  padding: 6px 14px;
  border-radius: var(--r-pill);
}

/* ============== CARD EYEBROW ============== */
.cs-card__eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-deep);
  margin-bottom: 8px;
}

/* ============== HINT INFO ============== */
.cs-hint--info {
  background: var(--bg-cool);
  border-left: 3px solid var(--teal-deep);
  padding: 8px 12px;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  margin-top: 14px !important;
  color: var(--ink-2) !important;
}

/* ============== CROSS-SELL HINT (탭 전환 유도) ============== */
.cs-cross {
  display: flex; align-items: center; gap: 12px;
  background: linear-gradient(135deg, #F0F8FA 0%, #E5F2F6 100%);
  border: 1px solid #C9E2EB;
  border-radius: var(--r-lg);
  padding: 14px 18px;
  margin: 20px 0;
  font-size: 13px;
  color: var(--ink-2);
}
.cs-cross__icon { font-size: 20px; flex-shrink: 0; }
.cs-cross__msg { line-height: 1.5; }

/* ============== EMPTY (통합 탭 미입력) ============== */
.cs-empty {
  text-align: center;
  padding: 56px 28px;
}
.cs-empty__icon {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--teal-deep);
  margin-bottom: 12px;
}

/* ============== BREAKDOWN (통합 탭 제품별 요약) ============== */
.cs-brk {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  margin: 18px 0;
}
.cs-brk__title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}
.cs-brk__row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--divider);
}
.cs-brk__row:last-child { border-bottom: none; }
.cs-brk__row--empty { opacity: 0.55; }
.cs-brk__label {
  font-weight: 600; color: var(--ink);
  font-size: 14px;
}
.cs-brk__val {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--navy);
}
.cs-brk__row--empty .cs-brk__val {
  font-family: var(--font-sans);
  font-size: 13px; color: var(--muted);
  font-style: italic;
}

/* ============== PARTIAL BANNER (통합 탭 일부만 입력) ============== */
.cs-partial-banner {
  display: flex; flex-direction: column; gap: 4px;
  background: #FFF8E6;
  border: 1px solid #F0DDA8;
  border-radius: var(--r-md);
  padding: 12px 14px;
  margin: 12px 0;
  font-size: 13px;
}
.cs-partial-banner strong { color: var(--warn); }
.cs-partial-banner span { color: var(--ink-2); }


/* ============== CONTENT ============== */
.cs-content { max-width: 920px; margin: 0 auto; padding: 20px; }
.cs-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  padding: 28px;
  margin-bottom: 20px;
}
.cs-card__head { margin-bottom: 22px; }
.cs-card__title {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700; line-height: 1.25;
  margin: 0 0 6px; color: var(--navy);
}
.cs-card__sub { color: var(--muted); margin: 0; font-size: 14px; }

/* ============== FORM ============== */
.cs-form { display: grid; gap: 18px; }
.cs-form--grid { grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .cs-form--grid { grid-template-columns: 1fr; } }

.cs-field { display: flex; flex-direction: column; gap: 6px; }
.cs-label {
  font-size: 13px; font-weight: 600;
  color: var(--ink-2); letter-spacing: 0.01em;
}
.cs-req { color: var(--error); margin-left: 2px; }
.cs-hint { color: var(--muted); font-size: 12px; margin: 0; }
.cs-err {
  color: var(--error); font-size: 12px; margin: 4px 0 0;
  font-weight: 500;
}

.cs-input, .cs-select {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  background: var(--white);
  color: var(--ink);
  transition: border-color var(--dur), box-shadow var(--dur);
  outline: none;
}
.cs-input:focus, .cs-select:focus {
  border-color: var(--teal-deep);
  box-shadow: 0 0 0 3px rgba(42,143,168,0.12);
}
.cs-input:disabled {
  background: var(--bg-cool); color: var(--muted-2);
  cursor: not-allowed;
}
.cs-select {
  -webkit-appearance: none; -moz-appearance: none; appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%23606670' stroke-width='1.6' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}

.cs-input-with-unit {
  position: relative; display: flex; align-items: center;
}
.cs-input-with-unit .cs-input { padding-right: 80px; }
.cs-input-with-unit .cs-unit {
  position: absolute; right: 12px;
  font-size: 12px; color: var(--muted);
  font-weight: 500; pointer-events: none;
}

.cs-check {
  display: inline-flex; align-items: flex-start; gap: 8px;
  cursor: pointer; user-select: none;
  font-size: 13px; color: var(--ink-2);
  padding: 6px 0;
}
.cs-check input[type="checkbox"] {
  width: 18px; height: 18px; margin: 1px 0 0;
  accent-color: var(--teal-deep);
  cursor: pointer; flex-shrink: 0;
}
.cs-check span { line-height: 1.45; }

.cs-disclaimer {
  background: var(--bg-cool);
  border-left: 3px solid var(--teal-deep);
  padding: 12px 14px;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 13px; color: var(--ink-2);
  margin-top: 18px;
}
.cs-disclaimer strong { color: var(--navy); margin-right: 6px; }

/* ============== ACTIONS / BUTTONS ============== */
.cs-actions {
  margin-top: 28px;
  display: flex; gap: 12px; justify-content: flex-end;
}
.cs-actions--split { justify-content: space-between; }
.cs-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px;
  font-size: 14px; font-weight: 700;
  border-radius: var(--r-md);
  border: 1.5px solid transparent;
  transition: all var(--dur);
  white-space: nowrap;
}
.cs-btn--primary {
  background: var(--navy); color: var(--white);
  border-color: var(--navy);
}
.cs-btn--primary:hover {
  background: var(--navy-700); border-color: var(--navy-700);
  transform: translateY(-1px); box-shadow: var(--shadow-sm);
}
.cs-btn--ghost {
  background: var(--white); color: var(--ink-2);
  border-color: var(--border-strong);
}
.cs-btn--ghost:hover {
  background: var(--bg-cool); border-color: var(--navy);
}
.cs-btn--block { width: 100%; margin-top: 16px; }

/* ============== RESULT ============== */
.cs-result__badge {
  display: inline-block;
  background: var(--linen); color: var(--navy);
  padding: 4px 12px; border-radius: var(--r-pill);
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.cs-result__grid {
  display: grid; gap: 14px;
  grid-template-columns: 1fr 1fr;
  margin: 20px 0;
}
.cs-result__grid--3 { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 700px) {
  .cs-result__grid,
  .cs-result__grid--3 { grid-template-columns: 1fr; }
}
.cs-result-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  position: relative;
  transition: all var(--dur);
}
.cs-result-card--accent {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-700) 100%);
  border-color: var(--navy);
  color: var(--white);
}
.cs-result-card__label {
  font-size: 12px; font-weight: 600;
  color: var(--muted); letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cs-result-card--accent .cs-result-card__label { color: rgba(255,255,255,0.7); }
.cs-result-card__value {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.1;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.cs-result-card__value strong {
  color: var(--teal); font-weight: 700;
}
.cs-result-card--accent .cs-result-card__value strong { color: var(--teal); }
.cs-result-card:not(.cs-result-card--accent) .cs-result-card__value strong {
  color: var(--navy);
}
.cs-result-card__value span {
  font-size: 0.55em; font-weight: 600;
  color: var(--muted); margin-left: 2px;
}
.cs-result-card--accent .cs-result-card__value span { color: rgba(255,255,255,0.8); }
.cs-result-card__sub {
  font-size: 12px; color: var(--muted);
  margin-top: 8px;
}
.cs-result-card--accent .cs-result-card__sub { color: rgba(255,255,255,0.7); }

/* 풀결과 헤드라인 */
.cs-result__headline {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin: 16px 0 8px;
  text-align: center;
}

/* v5.4.1 (b) — 비용 절감률 보수적 추정 안내(영업 화면과의 괴리 프레이밍). 인쇄 시에도 화이트 위 다크로 가독. */
.cs-result__estimate-note {
  margin: 10px 2px 0;
  font-size: 12px;
  line-height: 1.55;
  color: #5A6270;
  text-align: center;
}
.cs-result__estimate-note strong { color: var(--ink); font-weight: 700; }

/* 강조형 카드 (절감 비용 메인) */
.cs-result-card--strong {
  background: linear-gradient(135deg, #FFF7EC 0%, #FCEFDA 100%);
  border-color: #F0DDA8;
  position: relative;
}
.cs-result-card--strong .cs-result-card__value strong {
  color: var(--warn);
}
.cs-result-card--strong::before {
  content: "★ 핵심 지표";
  position: absolute;
  top: -10px; left: 14px;
  background: var(--warn);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: var(--r-pill);
}

/* hero 카드 (절감률 메인) */
.cs-result-card--hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, var(--teal-deep) 100%);
}
.cs-result-card--hero::before {
  content: "★ 핵심 지표";
  position: absolute;
  top: -10px; left: 14px;
  background: var(--teal);
  color: var(--navy-900);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: var(--r-pill);
}
.cs-result-card--hero .cs-result-card__value {
  font-size: clamp(28px, 5vw, 38px);
}

/* 게이팅 (블러 처리) */
.cs-result-card.is-locked {
  position: relative;
  overflow: hidden;
}
.cs-result-card.is-locked .cs-result-card__value,
.cs-result-card.is-locked .cs-result-card__sub {
  filter: blur(7px); user-select: none;
}
.cs-result-card.is-locked::after {
  content: "🔒";
  position: absolute; top: 50%; right: 16px;
  transform: translateY(-50%);
  font-size: 20px; opacity: 0.5;
}

.cs-lock-banner {
  display: flex; align-items: center; gap: 14px;
  background: linear-gradient(135deg, var(--linen) 0%, #FAF3EC 100%);
  border: 1px solid #E4D5C8;
  border-radius: var(--r-lg);
  padding: 16px 18px;
  margin: 18px 0;
}
.cs-lock-banner__icon { font-size: 22px; }
.cs-lock-banner__body { display: flex; flex-direction: column; gap: 2px; }
.cs-lock-banner__body strong { color: var(--navy); font-size: 14px; }
.cs-lock-banner__body span { color: var(--ink-2); font-size: 13px; }

/* 저단가 가드 (v5.4 C6) — 고객 단가 < 시장평균 시 정직 안내 */
.cs-guard {
  display: flex; align-items: flex-start; gap: 10px;
  background: #FFF8E6;
  border: 1px solid #F0DDA8;
  border-left: 3px solid var(--warn);
  border-radius: var(--r-md);
  padding: 12px 14px;
  margin: 14px 0 4px;
  font-size: 13px; color: var(--ink-2); line-height: 1.55;
}
.cs-guard__icon { flex-shrink: 0; font-size: 16px; line-height: 1.4; }
.cs-guard__msg strong { color: var(--warn); font-weight: 700; }

/* 추정 보완 안내 */
.cs-imputed {
  background: #FFF8E6;
  border-left: 3px solid var(--warn);
  padding: 10px 14px;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 13px; color: var(--ink-2);
  margin: 12px 0 8px;
}
.cs-imputed strong { color: var(--warn); }

/* 현재 연간 지출 맥락 (절감액 단독 표시 시 CFO 설득 맥락 부족 보완) */
.cs-annual-hint {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px 14px;
  margin: 0 0 10px;
}
.cs-annual-hint strong { color: var(--ink); font-size: 14px; }
.cs-annual-note {
  display: block;
  width: 100%;
  font-size: 11px;
  color: var(--muted-2);
  margin-top: 2px;
}

/* ============== ENVIRONMENT IMPACT ============== */
.cs-env {
  background: linear-gradient(135deg, #E8F4EE 0%, #F0F8F2 100%);
  border: 1px solid #C4DECF;
  border-radius: var(--r-lg);
  padding: 22px;
  margin: 24px 0;
}
.cs-env__title {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700;
  margin: 0 0 16px; color: var(--eco);
  display: flex; align-items: center; gap: 10px;
}
.cs-env__tag {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700;
  background: var(--eco); color: var(--white);
  padding: 3px 8px; border-radius: var(--r-pill);
  letter-spacing: 0.08em;
}
.cs-env__grid {
  display: grid; gap: 14px;
  grid-template-columns: 1fr 1fr;   /* v5.4 — 3-up→2-up (용수 카드 제거) */
}
@media (max-width: 600px) { .cs-env__grid { grid-template-columns: 1fr; } }
.cs-env-card {
  background: var(--white);
  border-radius: var(--r-md);
  padding: 16px;
  text-align: center;
}
.cs-env-card__icon { font-size: 26px; margin-bottom: 6px; }
.cs-env-card__label {
  font-size: 12px; font-weight: 600;
  color: var(--muted); letter-spacing: 0.05em;
  text-transform: uppercase;
}
.cs-env-card__value {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 400;
  color: var(--eco);
  margin: 6px 0 4px;
}
.cs-env-card__value strong { font-weight: 700; }
.cs-env-card__value span {
  font-size: 0.55em; color: var(--muted);
  font-weight: 600; margin-left: 2px;
}
.cs-env-card__sub {
  font-size: 11px; color: var(--muted);
}
.cs-env__note {
  text-align: center;
  font-size: 11px; color: var(--muted);
  margin: 14px 0 0;
}

/* ============== METHODOLOGY ============== */
.cs-method {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px;
  margin: 24px 0;
}
.cs-method__title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  margin: 0 0 14px; color: var(--navy);
}
.cs-method__grid {
  display: grid; gap: 10px;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 14px;
}
@media (max-width: 600px) { .cs-method__grid { grid-template-columns: 1fr; } }
.cs-method__item {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px;
  background: var(--white);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
}
.cs-method__k {
  font-size: 11px; font-weight: 700;
  color: var(--muted); letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cs-method__v {
  font-size: 14px; font-weight: 600; color: var(--ink);
}
.cs-method__desc {
  font-size: 13px; color: var(--ink-2);
  margin: 12px 0 8px; line-height: 1.6;
}
.cs-method__disc {
  font-size: 12px; color: var(--muted);
  line-height: 1.55;
  background: var(--white);
  padding: 12px 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  margin: 10px 0 0;
}
.cs-method__disc strong { color: var(--warn); }
.cs-method__disc em { font-style: italic; font-weight: 600; }

/* ============== SHARE ============== */
.cs-share {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin: 22px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--divider);
}
.cs-share .cs-btn { flex: 1; min-width: 130px; }

/* ============== LEAD GATE (절감률 → 풀결과 전환 미니폼) ============== */
.cs-leadgate {
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy) 65%, var(--teal-deep) 130%);
  color: var(--white);
  border-radius: var(--r-xl);
  padding: 28px;
  margin: 24px 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.cs-leadgate::before {
  content: "";
  position: absolute; top: -40%; right: -20%;
  width: 60%; height: 200%;
  background: radial-gradient(circle, rgba(96,191,212,0.22) 0%, transparent 60%);
  pointer-events: none;
}
.cs-leadgate__head {
  display: flex; align-items: flex-start; gap: 14px;
  margin-bottom: 18px;
  position: relative;
}
.cs-leadgate__icon {
  font-size: 32px;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.25));
}
.cs-leadgate__body { display: flex; flex-direction: column; gap: 4px; }
.cs-leadgate__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}
.cs-leadgate__sub {
  font-size: 14px;
  opacity: 0.9;
  margin: 0;
  line-height: 1.55;
}
.cs-leadgate__sub strong { color: var(--teal); font-weight: 700; }
.cs-leadgate .cs-label { color: rgba(255,255,255,0.85); }
.cs-leadgate .cs-input {
  background: rgba(255,255,255,0.95);
  border-color: transparent;
}
.cs-leadgate .cs-input:focus {
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(96,191,212,0.4);
}
.cs-leadgate .cs-form { position: relative; }
.cs-leadgate .cs-consent {
  margin: 16px 0 4px;
  display: flex; flex-direction: column; gap: 4px;
  position: relative;
}
.cs-leadgate .cs-check { color: rgba(255,255,255,0.92); }
.cs-leadgate .cs-check a { color: var(--teal); text-decoration: underline; }
.cs-leadgate .cs-btn--primary {
  background: var(--teal);
  color: var(--navy-900);
  border-color: var(--teal);
  font-size: 16px; padding: 14px 24px;
  letter-spacing: 0.01em;
}
.cs-leadgate .cs-btn--primary:hover {
  background: #7BCFDF; border-color: #7BCFDF;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(96,191,212,0.45);
}
.cs-leadgate__note {
  font-size: 12px; opacity: 0.7;
  margin: 12px 0 0; text-align: center;
  position: relative;
}

/* ============== FOLLOW-UP CTA (풀결과 후) ============== */
.cs-followup {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px;
  margin: 24px 0 0;
  text-align: center;
}
.cs-followup__title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  color: var(--navy);
  margin: 0 0 6px;
}
.cs-followup__sub {
  font-size: 13px; color: var(--muted);
  margin: 0 0 16px;
  line-height: 1.55;
}

/* ============== Method refs (foldable citations) ============== */
.cs-method__refs {
  margin: 10px 0;
  font-size: 12px;
  color: var(--muted);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 8px 12px;
}
.cs-method__refs summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}
.cs-method__refs ul {
  margin: 8px 0 0;
  padding-left: 16px;
  list-style: disc;
}
.cs-method__refs li {
  padding: 2px 0;
  line-height: 1.5;
}

/* ============== CONSULT FORM (CTA) (legacy — 사용 안 함) ============== */
.cs-consult {
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy) 100%);
  color: var(--white);
  border-radius: var(--r-xl);
  padding: 28px;
  margin: 28px 0 0;
  position: relative;
  overflow: hidden;
}
.cs-consult::before {
  content: "";
  position: absolute; top: -50%; right: -20%;
  width: 60%; height: 200%;
  background: radial-gradient(circle, rgba(96,191,212,0.18) 0%, transparent 60%);
  pointer-events: none;
}
.cs-consult__title {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 700;
  margin: 0 0 6px;
  position: relative;
}
.cs-consult__sub {
  font-size: 14px; opacity: 0.85;
  margin: 0 0 22px;
  position: relative;
}
.cs-consult .cs-label { color: rgba(255,255,255,0.85); }
.cs-consult .cs-input {
  background: rgba(255,255,255,0.95);
  border-color: transparent;
}
.cs-consult .cs-input:focus {
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(96,191,212,0.4);
}
.cs-consult .cs-form { position: relative; }
.cs-consent { margin: 18px 0 4px; display: flex; flex-direction: column; gap: 4px; position: relative; }
.cs-consult .cs-check { color: rgba(255,255,255,0.92); }
.cs-consult .cs-check a { color: var(--teal); text-decoration: underline; }
.cs-consult .cs-btn--primary {
  background: var(--teal); color: var(--navy-900);
  border-color: var(--teal);
  font-size: 16px; padding: 14px 24px;
}
.cs-consult .cs-btn--primary:hover {
  background: #7BCFDF; border-color: #7BCFDF;
  transform: translateY(-1px);
}
.cs-consult__note {
  font-size: 12px; opacity: 0.7;
  margin: 12px 0 0; text-align: center;
  position: relative;
}

/* ============== PDF SECTION ============== */
.cs-pdf {
  background: var(--bg-warm);
  border: 1px solid var(--linen);
  border-radius: var(--r-lg);
  padding: 22px;
  margin: 18px 0;
}
.cs-pdf__title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  margin: 0 0 4px; color: var(--navy);
}
.cs-pdf__sub {
  font-size: 13px; color: var(--muted);
  margin: 0 0 16px;
}

/* ============== THANKS (STEP 4) ============== */
.cs-thanks { text-align: center; padding: 56px 28px; }
.cs-thanks__icon {
  width: 64px; height: 64px;
  background: var(--eco); color: var(--white);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 32px; font-weight: 700;
  margin: 0 auto 18px;
}
.cs-thanks__title {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 700;
  margin: 0 0 10px; color: var(--navy);
}
.cs-thanks__sub {
  color: var(--muted); margin: 0 0 22px;
  font-size: 15px;
}
.cs-thanks__summary {
  background: var(--bg-cool);
  border-radius: var(--r-lg);
  padding: 18px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  max-width: 520px; margin: 0 auto 18px;
}
.cs-thanks__summary > div {
  display: flex; flex-direction: column; gap: 4px;
}
.cs-thanks__summary span {
  font-size: 11px; font-weight: 700;
  color: var(--muted); letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cs-thanks__summary strong {
  font-family: var(--font-display);
  font-size: 18px; color: var(--navy);
}
.cs-thanks__note {
  font-size: 13px; color: var(--muted); margin: 0 0 18px;
}
@media (max-width: 600px) { .cs-thanks__summary { grid-template-columns: 1fr; } }

/* ============== FOOTER ============== */
.cs-footer {
  max-width: 920px; margin: 0 auto;
  padding: 32px 20px;
  font-size: 12px; color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--divider);
}
.cs-footer p { margin: 4px 0; }
.cs-footer em { font-style: italic; font-weight: 600; }

/* ============== TOAST ============== */
.cs-toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%);
  background: var(--navy-900); color: var(--white);
  padding: 12px 20px;
  border-radius: var(--r-pill);
  font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  animation: toastIn 200ms var(--ease);
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ============================================================
   v5.4 C5 — 고객 결과를 영업 navy 대시보드 양식으로 통일
   결과(step3/통합) 패널을 navy full-surface 다크 대시보드로.
   고객 정체성 유지: ±8% 밴드 표시 · YK 단가 비노출 · 리드 게이트.
   @media screen 한정 → 인쇄(아래 @media print)는 화이트 A4로 자동 폴백.
   ============================================================ */
@media screen {
  .cs-result--dash {
    background: linear-gradient(165deg, var(--navy-900) 0%, var(--navy) 55%, #16315A 100%);
    border-color: var(--navy-900);
    color: #fff;
    box-shadow: var(--shadow-lg);
  }
  /* 헤드 */
  .cs-result--dash .cs-card__title { color: #fff; }
  .cs-result--dash .cs-card__sub { color: rgba(255,255,255,0.72); }
  .cs-result--dash .cs-result__badge { background: rgba(96,191,212,0.18); color: var(--teal); }
  .cs-result--dash .cs-result__headline { color: rgba(255,255,255,0.7); }

  /* 추정 보완 / 저단가 가드 — 다크 앰버 글래스 */
  .cs-result--dash .cs-imputed,
  .cs-result--dash .cs-guard {
    background: rgba(226,169,59,0.12);
    border-color: rgba(226,169,59,0.32);
    border-left-color: #E2A93B;
    color: rgba(255,255,255,0.88);
  }
  .cs-result--dash .cs-imputed strong,
  .cs-result--dash .cs-guard__msg strong { color: #F0C977; }

  /* pct 카드 — hero(비용 절감률)=teal 풀필 focal / 보조(사용량)=다크 글래스
     ※ 셀렉터에 .cs-result-card.cs-result-card--hero(동일 요소 2클래스)로 명시도를 올려
       아래 generic '.cs-result--dash .cs-result-card' 규칙(동일 명시도·후순위)에 덮이지 않게 한다. */
  .cs-result--dash .cs-result-card.cs-result-card--hero {
    background: linear-gradient(140deg, var(--teal-deep) 0%, var(--teal) 100%);
    border: none;
    box-shadow: 0 16px 40px rgba(42,143,168,0.40);
  }
  /* v5.4.1 WCAG — teal hero 위 navy 텍스트는 worst-case(teal-deep)에서 full navy-900만 AA(4.86) 통과.
     ★ 셀렉터는 반드시 .cs-result-card.cs-result-card--hero(이중 클래스, 0,4,x)로 명시도를 올려야 함.
     단일 .cs-result-card--hero(0,3,x)는 아래 후순위 generic '.cs-result--dash .cs-result-card--accent
     .cs-result-card__label'(0,3,0)에 color가 덮여 라벨이 흰 0.72 on teal(대비 1.7~2.7)로 렌더되는
     캐스케이드 버그가 발생(v5.4.1 인브라우저 검증으로 포착). 라벨/sub 불투명도 제거, 위계는 font-size·weight로 유지. */
  .cs-result--dash .cs-result-card.cs-result-card--hero .cs-result-card__label { color: var(--navy-900); opacity: 1; }
  .cs-result--dash .cs-result-card.cs-result-card--hero .cs-result-card__value,
  .cs-result--dash .cs-result-card.cs-result-card--hero .cs-result-card__value strong { color: var(--navy-900); }
  .cs-result--dash .cs-result-card.cs-result-card--hero .cs-result-card__value span { color: var(--navy-900); }
  .cs-result--dash .cs-result-card.cs-result-card--hero .cs-result-card__sub { color: var(--navy-900); }
  .cs-result--dash .cs-result-card--hero::before { background: var(--navy-900); color: var(--teal); }

  /* 일반/보조 카드 — 다크 글래스 */
  .cs-result--dash .cs-result-card {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.12);
    color: #fff;
  }
  .cs-result--dash .cs-result-card--accent:not(.cs-result-card--hero) {
    background: rgba(255,255,255,0.07);
    border-color: rgba(255,255,255,0.16);
  }
  .cs-result--dash .cs-result-card__label { color: rgba(255,255,255,0.6); }
  .cs-result--dash .cs-result-card--accent .cs-result-card__label { color: rgba(255,255,255,0.72); }
  .cs-result--dash .cs-result-card__value { color: #fff; }
  .cs-result--dash .cs-result-card:not(.cs-result-card--hero) .cs-result-card__value strong { color: var(--teal); }
  .cs-result--dash .cs-result-card__value span { color: rgba(255,255,255,0.7); }
  .cs-result--dash .cs-result-card__sub { color: rgba(255,255,255,0.62); }
  /* 연간 절감 비용(강조) 카드 — cream 폐지, 다크 글래스 + teal 강조 */
  .cs-result--dash .cs-result-card--strong {
    background: rgba(96,191,212,0.10);
    border-color: rgba(96,191,212,0.30);
  }
  .cs-result--dash .cs-result-card--strong .cs-result-card__value strong { color: var(--teal); }
  .cs-result--dash .cs-result-card--strong::before { background: var(--teal); color: var(--navy-900); }

  /* 연간 지출 맥락 */
  .cs-result--dash .cs-annual-hint {
    background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.12); color: rgba(255,255,255,0.7);
  }
  .cs-result--dash .cs-annual-hint strong { color: #fff; }
  .cs-result--dash .cs-annual-note { color: rgba(255,255,255,0.62); }  /* v5.4.1 WCAG: 0.5(4.10)→0.62(5.42) */
  .cs-result--dash .cs-result__estimate-note { color: rgba(255,255,255,0.72); }  /* v5.4.1 (b) 다크 오버라이드 6.67 */
  .cs-result--dash .cs-result__estimate-note strong { color: #fff; }

  /* 환경 카드 — 다크 (eco 그린은 다크 대비 위해 밝은 민트) */
  .cs-result--dash .cs-env { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.12); }
  .cs-result--dash .cs-env__title { color: #6FE0B6; }
  .cs-result--dash .cs-env__tag { color: var(--navy-900); background: #6FE0B6; }
  .cs-result--dash .cs-env-card { background: rgba(255,255,255,0.04); }
  .cs-result--dash .cs-env-card__label { color: rgba(255,255,255,0.72); }
  .cs-result--dash .cs-env-card__value { color: #6FE0B6; }
  .cs-result--dash .cs-env-card__value span { color: rgba(255,255,255,0.6); }
  .cs-result--dash .cs-env-card__sub { color: rgba(255,255,255,0.62); }
  .cs-result--dash .cs-env__note { color: rgba(255,255,255,0.55); }

  /* 방법론 카드 — 다크 */
  .cs-result--dash .cs-method { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.12); }
  .cs-result--dash .cs-method__title { color: #fff; }
  .cs-result--dash .cs-method__item { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.10); }
  .cs-result--dash .cs-method__k { color: rgba(255,255,255,0.6); }
  .cs-result--dash .cs-method__v { color: #fff; }
  .cs-result--dash .cs-method__desc { color: rgba(255,255,255,0.74); }
  .cs-result--dash .cs-method__disc { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.10); color: rgba(255,255,255,0.66); }
  .cs-result--dash .cs-method__disc strong { color: #F0C977; }
  .cs-result--dash .cs-method__refs { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.10); color: rgba(255,255,255,0.62); }
  .cs-result--dash .cs-method__refs summary { color: rgba(255,255,255,0.82); }

  /* 크로스셀 힌트 / 후속 CTA / 브레이크다운 / 부분배너 — 다크 */
  .cs-result--dash .cs-cross { background: rgba(96,191,212,0.10); border-color: rgba(96,191,212,0.24); color: rgba(255,255,255,0.84); }
  .cs-result--dash .cs-followup { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.12); }
  .cs-result--dash .cs-followup__title { color: #fff; }
  .cs-result--dash .cs-followup__sub { color: rgba(255,255,255,0.66); }
  .cs-result--dash .cs-brk { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12); }
  .cs-result--dash .cs-brk__title { color: rgba(255,255,255,0.6); }
  .cs-result--dash .cs-brk__row { border-bottom-color: rgba(255,255,255,0.08); }
  .cs-result--dash .cs-brk__label { color: #fff; }
  .cs-result--dash .cs-brk__val { color: var(--teal); }
  .cs-result--dash .cs-brk__row--empty .cs-brk__val { color: rgba(255,255,255,0.62); }  /* v5.4.1 WCAG: 0.5(4.10)→0.62(5.42) */
  .cs-result--dash .cs-partial-banner { background: rgba(226,169,59,0.12); border-color: rgba(226,169,59,0.3); }
  .cs-result--dash .cs-partial-banner strong { color: #F0C977; }
  .cs-result--dash .cs-partial-banner span { color: rgba(255,255,255,0.8); }

  /* 공유 / PDF / back(ghost) 버튼 — 다크 글래스 */
  .cs-result--dash .cs-share { border-top-color: rgba(255,255,255,0.14); }
  .cs-result--dash .cs-btn--ghost { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.24); color: #fff; }
  .cs-result--dash .cs-btn--ghost:hover { background: rgba(255,255,255,0.16); border-color: rgba(255,255,255,0.34); }
  .cs-result--dash .cs-pdf { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.12); }
  .cs-result--dash .cs-pdf__title { color: #fff; }
  .cs-result--dash .cs-pdf__sub { color: rgba(255,255,255,0.66); }

  /* 리드 게이트 — navy 표면 위에서 teal 보더로 분리 (자체 navy 그라데이션 유지) */
  .cs-result--dash .cs-leadgate { border: 1px solid rgba(96,191,212,0.35); box-shadow: 0 16px 40px rgba(0,0,0,0.32); }
}

/* ============== PRINT ============== */
/* v5.4 C4 — 인쇄 시 결과만 A4 1페이지(화이트)로. dash 다크 표면은 @media screen 한정이라
   인쇄에선 자동 화이트 폴백. pct 카드(base navy/teal 그라데이션)만 잉크·가독 위해 화이트로 강제. */
@page { size: A4 portrait; margin: 12mm; }
@media print {
  .cs-hero, .cs-tabs, .cs-prog, .cs-actions, .cs-share, .cs-consult, .cs-pdf,
  .cs-lock-banner, .cs-leadgate, .cs-cross, .cs-followup, .cs-toast, .cs-footer,
  [role="tablist"], [role="tab"] {
    display: none !important;
  }
  body { background: var(--white); }
  .cs-content { max-width: none; padding: 0; margin: 0; }
  .cs-card, .cs-result--dash {
    box-shadow: none !important;
    border: none !important;
    background: var(--white) !important;
    color: var(--ink) !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  /* pct 카드 — 화이트 + 다크 텍스트 (color-adjust 무관 가독) */
  .cs-result-card--accent, .cs-result-card--hero, .cs-result-card--strong,
  .cs-result-card {
    background: #fff !important;
    border: 1px solid #C2C6CD !important;
    box-shadow: none !important;
    color: #11223E !important;
  }
  .cs-result-card__label { color: #606670 !important; }
  .cs-result-card__value, .cs-result-card__value strong { color: #11223E !important; }
  .cs-result-card--hero .cs-result-card__value strong,
  .cs-result-card--strong .cs-result-card__value strong { color: #2A8FA8 !important; }
  .cs-result-card__value span { color: #606670 !important; }
  .cs-result-card--hero::before,
  .cs-result-card--strong::before { background: #2A8FA8 !important; color: #fff !important; }
  /* 페이지 분할 방지 */
  .cs-result__grid, .cs-result__grid--3, .cs-env, .cs-method, .cs-brk { page-break-inside: avoid; }
  [data-countup] { animation: none !important; }
  /* 게이팅 잔재(구) */
  .cs-result-card.is-locked .cs-result-card__value,
  .cs-result-card.is-locked .cs-result-card__sub { filter: none; }
  .cs-result-card.is-locked::after { display: none; }
}