:root {
  --pine: #143c33;
  --moss: #527466;
  --amber: #d49a3a;
  --paper: #f7f8f5;
  --mist: #e7f0ec;
  --line: #cfd9d4;
  --ink: #18201d;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans KR", sans-serif; letter-spacing: 0; }
img { max-width: 100%; }
a { color: inherit; }
.container { width: min(1280px, calc(100% - 64px)); margin: 0 auto; }
.review-header { border-bottom: 1px solid var(--line); background: rgba(247,248,245,.97); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.review-mark { min-height: 44px; display: inline-flex; align-items: center; color: var(--pine); font-family: "Noto Serif KR", serif; font-size: 22px; font-weight: 700; text-decoration: none; }
.header-inner > span { color: var(--moss); font-family: "Instrument Sans", sans-serif; font-size: 11px; font-weight: 700; }

.intro { padding: 90px 0 76px; background: white; }
.intro-grid { display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 90px; }
.eyebrow { margin: 0 0 18px; color: var(--moss); font-family: "Instrument Sans", sans-serif; font-size: 12px; font-weight: 700; }
h1 { margin: 0; color: var(--pine); font-family: "Noto Serif KR", serif; font-size: 68px; line-height: 1.18; letter-spacing: 0; }
.intro-subtitle { max-width: 720px; margin: 26px 0 0; color: #45534d; font-size: 18px; line-height: 1.8; word-break: keep-all; }
.recommendation { padding: 28px 0 8px 30px; border-left: 3px solid var(--amber); }
.recommendation span, .recommendation strong { display: block; }
.recommendation span { color: var(--moss); font-size: 12px; font-weight: 700; }
.recommendation strong { margin-top: 8px; color: var(--pine); font-family: "Instrument Sans", sans-serif; font-size: 24px; }
.recommendation p { margin: 14px 0 0; color: #52625b; line-height: 1.75; }

.concepts { padding: 96px 0 110px; }
.section-heading { display: grid; grid-template-columns: 1fr .8fr; align-items: end; gap: 70px; margin-bottom: 42px; }
.section-heading h2 { margin: 0; font-size: 40px; line-height: 1.3; letter-spacing: 0; }
.section-heading > p { margin: 0; color: var(--moss); line-height: 1.75; }
.concept-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.concept-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: white; }
.concept-card--recommended { border-color: var(--pine); box-shadow: inset 0 0 0 1px var(--pine); }
.recommended-badge { position: absolute; z-index: 2; top: 18px; right: 18px; min-height: 36px; padding: 0 14px; display: inline-flex; align-items: center; color: var(--ink); background: var(--amber); border-radius: 4px; font-size: 12px; font-weight: 700; }
.concept-preview { position: relative; aspect-ratio: 16 / 10; display: block; overflow: hidden; background: #edf1ee; border-bottom: 1px solid var(--line); }
.concept-preview img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: top; transition: transform .35s ease; }
.concept-preview:hover img { transform: scale(1.015); }
.concept-copy { padding: 30px; }
.concept-label { display: flex; align-items: baseline; gap: 12px; }
.concept-label span { color: var(--amber); font-family: "Instrument Sans", sans-serif; font-size: 26px; font-weight: 700; }
.concept-label small { color: var(--moss); font-family: "Instrument Sans", sans-serif; font-size: 11px; font-weight: 700; }
.concept-copy h3 { margin: 18px 0 0; font-size: 24px; line-height: 1.5; letter-spacing: 0; word-break: keep-all; }
.concept-copy p { margin: 14px 0 0; color: var(--moss); line-height: 1.75; }
.concept-link { min-height: 48px; margin-top: 22px; padding: 0 16px; display: inline-flex; align-items: center; gap: 10px; color: white; background: var(--pine); border-radius: 4px; font-weight: 700; text-decoration: none; }

.decision-band { padding: 90px 0; color: white; background: var(--pine); }
.decision-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 90px; }
.eyebrow--light { color: #b8d0c7; }
.decision-grid h2 { margin: 0; font-size: 40px; line-height: 1.4; letter-spacing: 0; word-break: keep-all; }
.decision-grid > p { margin: 0; color: #c7d8d1; font-size: 17px; line-height: 1.85; }
footer { padding: 42px 0; color: white; background: #0c2923; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-inner strong { font-family: "Instrument Sans", sans-serif; font-size: 15px; }
.footer-inner span { color: #a9c1b8; font-size: 12px; }
.demo-notice { margin: 0; padding: 12px 20px; color: #405049; background: #eef2ef; border-top: 1px solid var(--line); font-size: 12px; line-height: 1.65; text-align: center; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

@media (max-width: 900px) {
  .container { width: min(100% - 40px, 1280px); }
  .intro { padding: 70px 0; }
  .intro-grid, .section-heading, .decision-grid { grid-template-columns: 1fr; gap: 42px; }
  .concept-grid { grid-template-columns: 1fr; }
  .concept-preview { aspect-ratio: 16 / 9; }
}

@media (max-width: 640px) {
  .header-inner { min-height: 68px; }
  .header-inner > span { max-width: 130px; text-align: right; }
  .intro { padding: 58px 0 52px; }
  h1 { font-size: 44px; }
  .intro-subtitle { font-size: 16px; }
  .recommendation { padding-left: 20px; }
  .concepts { padding: 72px 0; }
  .section-heading h2, .decision-grid h2 { font-size: 32px; }
  .concept-copy { padding: 24px 20px; }
  .concept-copy h3 { font-size: 21px; }
  .concept-link { width: 100%; justify-content: center; }
  .decision-band { padding: 72px 0; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .concept-preview img { transition: none; }
}