:root {
  color-scheme: light;
  --bg: #f5f0e8;
  --surface: #ffffff;
  --surface-soft: #fbf8f2;
  --text: #313131;
  --muted: #5e625f;
  --border: #d8cfc1;
  --green: #1e8a4a;
  --green-dark: #0d3b1e;
  --green-hover: #166b39;
  --green-soft: #e4f2e9;
  --shadow: 0 18px 48px rgba(49, 49, 49, 0.14);
  --display: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --body: "Open Sans", "Helvetica Neue", Arial, sans-serif;
}

/* Language switching — hide the inactive language. */
.lang-ko { display: none; }
html[data-lang="ko"] .lang-en { display: none; }
html[data-lang="ko"] .lang-ko { display: revert; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
}

/* Korean script needs its own face for legibility — Noto Sans KR. */
html[data-lang="ko"] body {
  font-family: "Noto Sans KR", "Open Sans", "Helvetica Neue", Arial, sans-serif;
}
html[data-lang="ko"] h1,
html[data-lang="ko"] h2,
html[data-lang="ko"] h3 {
  font-family: "Noto Sans KR", "Montserrat", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
  text-transform: none;
}

a { color: inherit; }

.wrap {
  width: min(100% - 32px, 1120px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px max(16px, calc((100vw - 1120px) / 2));
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 36px; height: 36px; object-fit: contain; }
.brand strong { display: block; font-family: var(--display); font-size: 14px; line-height: 1.05; letter-spacing: 0.04em; }
.brand span span { display: block; color: var(--muted); font-size: 13px; line-height: 1.2; }

nav { display: flex; gap: 28px; font-weight: 600; color: var(--muted); }
nav a { text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--green); }

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--display);
}
.lang-option {
  background: none; border: none; padding: 4px 4px; cursor: pointer;
  font: 700 12px var(--display); letter-spacing: 0.08em; color: var(--muted); line-height: 1;
}
.lang-option:hover { color: var(--text); }
html[data-lang="en"] .lang-option[data-set-lang="en"],
html[data-lang="ko"] .lang-option[data-set-lang="ko"] { color: var(--green); }
.lang-divider { color: var(--border); font-weight: 700; }

/* ====== Landing-page hero (full bleed, photographic background) ====== */
.hero {
  min-height: 620px;
  display: grid;
  align-items: center;
  padding: 86px 0;
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(9, 35, 18, 0.92) 0%, rgba(9, 35, 18, 0.76) 48%, rgba(9, 35, 18, 0.24) 100%),
    url("/assets/brand/calkor-hero-road.jpeg") center / cover;
}
.hero-copy { max-width: 760px; }

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero .eyebrow { color: #9be2ad; }

h1, h2, h3 { font-family: var(--display); line-height: 1.12; margin: 0; }
h1 {
  max-width: 780px;
  font-size: clamp(2.35rem, 5vw, 4.35rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}
h2 { font-size: clamp(1.85rem, 3vw, 3rem); letter-spacing: -0.035em; }
h3 { font-size: 1.05rem; }

.hero-lead {
  max-width: 720px;
  margin: 24px 0 28px;
  color: #edf4ec;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.button-row { display: flex; flex-wrap: wrap; gap: 12px; }

.btn,
.print-button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 18px;
  border: 1px solid transparent; border-radius: 8px;
  font: 700 14px var(--body); text-decoration: none; cursor: pointer;
}
.btn.primary,
.print-button { background: var(--green); color: #ffffff; }
.btn.primary:hover,
.print-button:hover { background: var(--green-hover); }
.btn.secondary { background: var(--surface); color: var(--text); border-color: var(--border); }

.stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px; margin-top: 38px; padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.stats strong { display: block; font-family: var(--display); font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.1; }
.stats span { display: block; max-width: 220px; margin-top: 8px; color: #d4ded3; }

.intro {
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px; padding: 76px 0 34px;
  border-bottom: 1px solid var(--border);
}
.intro p:last-child { margin: 0; color: var(--muted); font-size: 1.1rem; }

/* ====== Landing page — two tool cards (replaces the old long asset sections) ====== */
.tool-cards {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 64px 0;
}
.tool-card {
  display: block;
  padding: 36px 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--text);
  transition: transform .15s ease, box-shadow .15s ease;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 60px rgba(49, 49, 49, 0.16);
}
.tool-card .eyebrow { margin-bottom: 14px; }
.tool-card h2 { margin: 6px 0 14px; font-size: clamp(1.45rem, 2.4vw, 1.95rem); letter-spacing: -0.02em; }
.tool-card p { color: var(--muted); margin: 0 0 18px; }
.tool-card .tool-cta {
  display: inline-block;
  font: 700 14px var(--body);
  letter-spacing: 0.04em;
  color: var(--green);
}

/* ====== Scorecard pages — lighter hero (no full-bleed photo) ====== */
.page-hero {
  background: var(--green-dark);
  color: #ffffff;
  padding: 76px 0 64px;
}
.page-hero .eyebrow { color: #9be2ad; }
.page-hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.6rem);
  text-transform: uppercase;
}
.page-hero-lead {
  max-width: 740px;
  margin-top: 24px;
  color: #d4ded3;
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

/* ====== Scorecard interactive form ====== */
.scorecard-section { padding: 64px 0 32px; }

.scorecard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 38px 36px;
}
.scorecard-instruction {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 1.02rem;
}
.scorecard-instruction strong { color: var(--text); }

.scorecard-list {
  list-style: none;
  counter-reset: q;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.scorecard-list li {
  counter-increment: q;
  padding: 16px 20px 16px 64px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-soft);
  position: relative;
}
.scorecard-list li::before {
  content: counter(q);
  position: absolute;
  left: 20px; top: 14px;
  width: 32px; height: 32px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-dark);
  font: 700 13px var(--display);
  display: inline-flex; align-items: center; justify-content: center;
}
.scorecard-list label {
  display: flex; align-items: flex-start; gap: 14px;
  cursor: pointer;
  line-height: 1.5;
}
.scorecard-list input[type="checkbox"] {
  flex-shrink: 0;
  appearance: none;
  width: 22px; height: 22px;
  margin-top: 2px;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
  display: inline-grid;
  place-content: center;
}
.scorecard-list input[type="checkbox"]:hover { border-color: var(--green); }
.scorecard-list input[type="checkbox"]:checked {
  background: var(--green); border-color: var(--green);
}
.scorecard-list input[type="checkbox"]:checked::after {
  content: "";
  width: 12px; height: 12px;
  background: #fff;
  clip-path: polygon(14% 47%, 0 60%, 40% 100%, 100% 21%, 86% 8%, 38% 71%);
}

.scorecard-actions {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-top: 26px;
}

/* Result panel — color-coded tier band that appears once the score is calculated. */
.scorecard-result {
  margin-top: 28px;
  padding: 30px 32px;
  border-radius: 16px;
  border: 2px solid transparent;
  background: var(--surface-soft);
}
.scorecard-result[hidden] { display: none; }
.scorecard-result .score-number {
  font: 800 clamp(2rem, 3.4vw, 2.6rem) var(--display);
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}
.scorecard-result .score-label {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  letter-spacing: -0.02em;
}
.scorecard-result .score-message { margin: 0; color: var(--text); font-size: 1.05rem; }

.result-strong   { background: #e4f2e9; border-color: #1e8a4a; }
.result-mostly   { background: #ecf5e2; border-color: #5b9c3a; }
.result-medium   { background: #fff4d6; border-color: #c48b18; }
.result-low      { background: #ffe8d3; border-color: #b75b1f; }
.result-critical { background: #fbe1e1; border-color: #9d2424; }
.result-critical .score-number,
.result-low      .score-number { color: #6b1c1c; }
.result-strong   .score-number,
.result-mostly   .score-number { color: #0d3b1e; }

/* ====== Scorecard page next-step section ====== */
.next-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 42px;
  align-items: start;
  padding: 64px 0 96px;
}
.next-step > div:first-child p:last-child { color: var(--muted); font-size: 1.1rem; }

/* ====== Contact card + review section (used on every page) ====== */
.review {
  scroll-margin-top: 96px;
  display: grid; grid-template-columns: minmax(0, 1fr) 380px;
  gap: 42px; align-items: start;
  padding: 78px 0;
}
.review > div:first-child p:last-child { color: var(--muted); font-size: 1.1rem; }

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 28px;
}
.contact-card p { margin: 10px 0; color: var(--muted); }
.contact-card a:not(.btn) { color: var(--green); }

.korean {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-weight: 700;
}

/* ====== Footer ====== */
.site-footer {
  padding: 46px 0;
  background: var(--green-dark);
  color: #d4ded3;
}
.footer-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 42px;
}
.site-footer img { width: min(220px, 100%); height: auto; }
.site-footer h2 { font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; }
.site-footer a { display: block; margin-top: 10px; color: #9be2ad; text-decoration: none; }

@media (max-width: 860px) {
  .site-header { align-items: flex-start; flex-wrap: wrap; }
  nav { display: none; }
  .hero { min-height: auto; padding: 72px 0; }
  .stats,
  .intro,
  .tool-cards,
  .review,
  .next-step,
  .footer-grid { grid-template-columns: 1fr; }
  .scorecard { padding: 26px 18px; }
  .scorecard-list li { padding: 16px 18px 16px 56px; }
}

@media print {
  .site-header,
  .button-row,
  .scorecard-actions,
  .print-button,
  .site-footer,
  .lang-toggle { display: none !important; }
  body { background: #ffffff; color: #111111; }
  .hero,
  .page-hero {
    min-height: auto; padding: 32px 0;
    color: #111111; background: none;
  }
  .page-hero .eyebrow,
  .hero .eyebrow { color: #1e8a4a; }
  .page-hero-lead,
  .hero-lead,
  .stats span,
  .intro p:last-child,
  .scorecard-instruction,
  .next-step > div:first-child p:last-child,
  .review > div:first-child p:last-child { color: #333333; }
  .scorecard,
  .scorecard-list li,
  .scorecard-result,
  .contact-card,
  .tool-card { box-shadow: none; }
  .next-step, .review { page-break-inside: avoid; padding: 30px 0; }
}