/* These four documents keep their calculators, copy/share controls and static fallback. */
:root { color-scheme: light; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.guide-page {
  --ink: #263229;
  --accent: #3156c5;
  --line: #dddcd2;
  --guide-copy: #626b61;
  --guide-surface: #fffdf9;
  margin: 0;
  color: var(--ink);
  background: #f8f5ed;
  font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", sans-serif;
  font-synthesis: none;
  font-size: 16px;
  line-height: 1.8;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.guide-page a { color: inherit; text-underline-offset: 5px; text-decoration-thickness: 1px; }
.guide-page a:hover { color: var(--accent); }
.guide-page :focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.guide-page :is(h2, section[id], div[id]) { scroll-margin-top: 32px; }
.guide-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--public-header-height, 84px);
  gap: 24px;
  padding: 12px var(--public-page-inset, 32px);
  border-bottom: 1px solid var(--line);
}
.guide-nav > a { flex-shrink: 0; text-decoration: none; }
.guide-nav nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 26px; font-size: 15px; }
.guide-nav nav a { display: inline-flex; min-height: 44px; align-items: center; text-decoration: none; }
.guide-nav nav a:last-child { padding-inline: 16px; border-radius: 7px; color: #fff; background: var(--accent); }
.guide-main { width: min(900px, var(--public-page-width, calc(100% - 40px))); margin: auto; padding-block: 64px 96px; }
.guide-header { padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.guide-header > nav:first-child a { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); font-size: 14px; }
.guide-main h1 { max-width: 23ch; margin: 12px 0 20px; font-size: clamp(30px, 3.6vw, 46px); font-weight: 680; line-height: 1.3; letter-spacing: -.04em; }
.guide-byline { margin: 0; color: var(--guide-copy); font-size: 14px; }
.guide-outline { display: flex; flex-wrap: wrap; gap: 4px 24px; margin-top: 22px; }
.guide-outline a { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; color: var(--guide-copy); font-size: 14px; }
.guide-outline a::after { content: "↓"; color: var(--accent); }
.guide-body { padding-top: 10px; }
.guide-body > p { max-width: 740px; color: var(--guide-copy); }
.guide-main .guide-lead { max-width: none; margin: 28px 0 18px; color: var(--ink); font-size: clamp(23px, 2.5vw, 30px); font-weight: 630; line-height: 1.45; letter-spacing: -.035em; }
.guide-main h2 { margin: 52px 0 18px; font-size: clamp(22px, 2.3vw, 28px); font-weight: 650; line-height: 1.4; letter-spacing: -.03em; }
.guide-main h3 { font-size: 21px; font-weight: 650; letter-spacing: -.025em; }
.guide-main ul, .guide-main ol { padding-left: 24px; }
.guide-main li { margin-block: 10px; }
.guide-main li::marker { color: var(--accent); }
.guide-main .guide-index { list-style: none; padding: 0; margin: 36px 0 48px; border-top: 1px solid var(--line); }
.guide-index li { margin: 0; }
.guide-index a { display: grid; grid-template-columns: 30px minmax(0, 1fr) 24px; align-items: start; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.guide-topic-icon { width: 28px; height: 28px; margin-top: 4px; color: var(--accent); }
.guide-index-copy { display: grid; gap: 7px; }
.guide-index-copy small { color: var(--accent); font-size: 14px; }
.guide-index-copy strong { font-size: clamp(19px, 2vw, 23px); font-weight: 650; line-height: 1.45; letter-spacing: -.025em; }
.guide-index-copy > span { color: var(--guide-copy); font-size: 16px; }
.guide-topic-arrow { margin-top: 4px; color: var(--accent); font-size: 24px; }
.guide-index a:hover strong { text-decoration: underline; text-underline-offset: 5px; }
.guide-plan-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
.guide-plan-grid > section { min-width: 0; padding-top: 8px; border-top: 3px solid var(--accent); }
.guide-plan-grid h3 { margin: 16px 0; }
.guide-plan-grid dl { margin: 0; }
.guide-plan-grid dl > div { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 6px 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.guide-plan-grid dt { color: var(--guide-copy); }
.guide-plan-grid dd { margin: 0 0 0 auto; font-weight: 650; font-variant-numeric: tabular-nums; }
.guide-plan-first dd { color: var(--accent); }
.guide-plan-total dd { font-size: 22px; }
.guide-tool { margin-top: 40px; padding: 32px; border: 1px solid var(--line); border-radius: 12px; background: var(--guide-surface); }
.guide-tool h2 { margin-top: 0; }
#guide-cost { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
#guide-cost label { display: grid; gap: 8px; font-weight: 600; }
#guide-cost :is(select, input) { display: block; width: 100%; min-width: 0; min-height: 52px; padding: 10px 12px; border: 1px solid #9bA296; border-radius: 7px; color: var(--ink); background: #fffdf9; font: inherit; }
#guide-cost > button { grid-column: 1 / -1; justify-self: start; }
.guide-page :is(button, .guide-next > a) { min-height: 48px; padding: 11px 20px; border: 1px solid var(--accent); border-radius: 7px; color: #fff; background: var(--accent); font: inherit; font-weight: 600; cursor: pointer; }
.guide-page button:hover, .guide-next > a:hover { color: #fff; background: #2746a3; border-color: #2746a3; }
.guide-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.guide-page .guide-actions button { color: var(--ink); background: transparent; border-color: var(--line); }
.guide-page .guide-actions button:hover { color: var(--accent); border-color: var(--accent); }
.guide-page [hidden] { display: none !important; }
#cost-result { min-height: 3em; margin: 24px 0; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink); font-size: 17px; font-weight: 600; line-height: 1.8; }
.guide-check { display: flex; gap: 14px; align-items: flex-start; min-height: 56px; padding: 16px 0; border-bottom: 1px solid var(--line); cursor: pointer; }
.guide-check input { flex: 0 0 21px; width: 21px; height: 21px; margin: 4px 0 0; accent-color: var(--accent); }
.guide-check:has(input:checked) span { color: var(--accent); }
#check-progress { margin-block: 24px; color: var(--accent); font-weight: 650; font-variant-numeric: tabular-nums; }
.guide-tool > p:last-child { color: var(--guide-copy); }
.guide-decision-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px; margin-top: 44px; }
.guide-decision-grid > section { min-width: 0; padding-top: 20px; border-top: 2px solid var(--line); }
.guide-decision-grid > section:last-child { border-color: var(--accent); }
.guide-section-label { margin: 0; color: var(--accent); font-size: 14px; font-weight: 600; }
.guide-decision-grid h2 { margin-top: 12px; font-size: 24px; }
.guide-main .guide-step-list { counter-reset: guide-step; list-style: none; padding: 0; border-top: 1px solid var(--line); }
.guide-step-list > li { counter-increment: guide-step; position: relative; margin: 0; padding: 22px 0 22px 50px; border-bottom: 1px solid var(--line); color: var(--guide-copy); }
.guide-step-list > li::before { position: absolute; left: 0; top: 23px; content: counter(guide-step, decimal-leading-zero); color: var(--accent); font-family: "Geist Variable", sans-serif; font-size: 16px; font-weight: 550; }
.guide-production-steps strong { display: block; margin-bottom: 7px; color: var(--ink); font-size: 18px; font-weight: 650; }
.guide-related { margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--line); }
.guide-related h2 { margin-top: 0; }
.guide-related ul { display: grid; gap: 4px; list-style: none; padding: 0; }
.guide-related li { margin: 0; }
.guide-related li a { display: inline-flex; align-items: center; gap: 16px; min-height: 44px; }
.guide-related p { color: var(--guide-copy); }
.guide-next { margin-top: 40px; padding: 32px 0 0; border-top: 2px solid var(--accent); }
.guide-next h2 { margin-top: 0; }
.guide-next p { max-width: 680px; color: var(--guide-copy); }
.guide-next > a { display: inline-flex; align-items: center; margin-top: 10px; text-decoration: none; }
#guide-feedback:not(:empty) { padding: 16px 0; color: var(--accent); font-weight: 600; }
#guide-copy-fallback { width: 100%; min-height: 200px; padding: 16px; border: 1px solid var(--accent); border-radius: 7px; color: var(--ink); background: var(--guide-surface); font: inherit; }
.guide-skip { position: absolute; z-index: 100; top: -100px; left: 20px; padding: 12px; color: var(--ink); background: #fffdf9; }
.guide-skip:focus { top: 10px; }
.guide-page .public-footer { padding: 48px var(--public-page-inset, 20px); border-top: 1px solid var(--line); }
@media (max-width: 700px) {
  .guide-nav { align-items: flex-start; flex-direction: column; gap: 8px; padding-block: 16px; }
  .guide-nav nav { width: 100%; gap: 8px 20px; }
  .guide-nav nav a:last-child { margin-left: auto; padding-inline: 12px; }
  .guide-main { padding-block: 34px 64px; }
  .guide-main h1 { max-width: none; font-size: clamp(28px, 7vw, 36px); }
  .guide-header { padding-bottom: 24px; }
  .guide-outline { display: grid; gap: 0; margin-top: 16px; }
  .guide-outline a { justify-content: space-between; border-top: 1px solid var(--line); }
  .guide-plan-grid, .guide-decision-grid, #guide-cost { grid-template-columns: 1fr; gap: 24px; }
  .guide-index a { grid-template-columns: 24px minmax(0, 1fr) 18px; gap: 14px; padding-block: 24px; }
  .guide-topic-icon { width: 24px; height: 24px; }
  .guide-topic-arrow { font-size: 20px; }
  .guide-tool { padding: 24px 20px; }
  #guide-cost > button { width: 100%; }
  .guide-page :is(button, .guide-next > a) { min-height: 52px; }
  .guide-actions button { flex: 1 1 auto; }
  .guide-next > a { justify-content: center; width: 100%; }
}
@media (max-width: 360px) {
  .guide-nav nav { gap: 8px 12px; font-size: 14px; }
  .guide-nav nav a:last-child { padding-inline: 10px; }
  .guide-tool { padding: 22px 16px; }
  .guide-actions { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .guide-nav, .public-footer, .guide-actions, .guide-next, .guide-related, .guide-skip, .guide-outline { display: none; }
  .guide-page { color: #263229; background: white; }
  .guide-main { width: 100%; max-width: none; padding: 0; }
  .guide-tool { break-inside: avoid; }
  .guide-page a { color: inherit; }
}