:root {
  font-family: "Malgun Gothic", "맑은 고딕", sans-serif;
  color: #444;
  background: #e4e4e4;
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; }
main { display: grid; gap: 28px; padding: 28px; }
section {
  min-height: 560px;
  padding: 24px;
  background: #fff;
  border: 2px solid #b0b0b0;
}
.frame-bar {
  padding: 24px;
  background: #fff;
  border: 2px solid #b0b0b0;
}
.navbar { min-height: 100px; }
.footer-bar { min-height: 180px; }
h2, .bar-label {
  display: inline-block;
  margin: 0;
  padding: 8px 14px;
  border: 1px solid #c1c1c1;
  background: #f1f1f1;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}
.plan-launch {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 10;
  padding: 12px 24px;
  border: 1px solid #333;
  border-radius: 6px;
  background: #333;
  color: #fff;
  font: inherit;
  cursor: pointer;
  box-shadow: 0 3px 12px #0002;
}
#plan-dialog {
  width: min(800px, calc(100% - 32px));
  max-height: calc(100dvh - 32px);
  padding: 24px;
  border: 1px solid #aaa;
  border-radius: 8px;
  color: #333;
}
#plan-dialog::backdrop { background: #0006; }
.plan-header, .plan-actions { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.plan-header h3 { margin: 0; font-size: 20px; }
#plan-dialog button { font: inherit; cursor: pointer; padding: 8px 16px; border: 1px solid #bbb; border-radius: 4px; }
.plan-hint { color: #777; font-size: 12px; line-height: 1.7; margin: 16px 0; }
#plan-editor { display: block; width: 100%; height: min(55dvh, 540px); min-height: 120px; resize: vertical; max-height: 60dvh; padding: 16px; border: 1px solid #bbb; border-radius: 4px; font: 14px/1.9 "Malgun Gothic", sans-serif; color: #333; background: #fff; }
.plan-shortcuts { font-size: 11px; line-height: 1.8; color: #777; margin: 0 0 12px; }
#plan-editor { overflow: auto; overflow-wrap: anywhere; }
#plan-editor p, #plan-editor div { margin: 0; min-height: 1.9em; }
#plan-editor h1 { font-size: 30px; font-weight: 800; line-height: 1.4; margin: 20px 0 12px; }
#plan-editor h3 { font-size: 20px; font-weight: 700; line-height: 1.5; margin: 16px 0 8px; }
#plan-editor details { margin: 10px 0; }
#plan-editor summary { cursor: pointer; font-weight: 600; min-height: 1.9em; }
#plan-editor details > div { margin-left: 22px; padding-left: 12px; border-left: 2px solid #ddd; }
#plan-editor :is(h1,h3):first-child { margin-top: 0; }
.plan-actions { margin-top: 16px; }
.plan-actions { flex-wrap: wrap; }
#plan-status { flex: 1 1 180px; }
#plan-dialog button:disabled { opacity: .45; cursor: default; }
#plan-delete-toggle, #plan-undo-delete { font-size: 12px; white-space: nowrap; }
#plan-status { margin: 0; font-size: 12px; color: #666; }
#plan-save { background: #333; color: #fff; flex-shrink: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
button:focus-visible, #plan-editor:focus-visible { outline: 2px solid #555; outline-offset: 3px; }
@media (max-width: 760px) {
  .plan-launch { left: 16px; bottom: 16px; padding: 10px 18px; }
  #plan-dialog { padding: 18px; }
  main { gap: 20px; padding: 16px; }
  section { min-height: 440px; padding: 16px; }
  .frame-bar { padding: 16px; }
  .navbar { min-height: 80px; }
  .footer-bar { min-height: 140px; }
  h2, .bar-label { font-size: 12px; padding: 7px 10px; }
}

/* 각 섹션의 기획 항목. 기존 섹션 크기와 바깥 배치는 유지한다. */
.section-plan { margin-top: 28px; max-width: 960px; }
.section-plan-note { margin: 0 0 16px; color: #888; font-size: 12px; }
.section-plan-field { padding: 18px 20px; border: 1px dashed #ccc; background: #fafafa; }
.section-plan-field + .section-plan-field { margin-top: 16px; }
.section-plan-field h3 { margin: 0 0 12px; font-size: 14px; line-height: 1.5; }
.section-plan-placeholder { margin: 0; color: #888; font-size: 18px; line-height: 1.6; }
.section-plan-guide { margin: 8px 0 0; color: #777; font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; }
@media (max-width: 760px) {
  .section-plan { margin-top: 24px; }
  .section-plan-field { padding: 14px; }
  .section-plan-placeholder { font-size: 16px; }
}

/* 기획서: Meta product UI를 참고한 컴팩트 패널. 본문 스타일과 분리. */
#plan-dialog {
  --plan-blue: #0064e0;
  --plan-ink: #1c2b33;
  --plan-muted: #65676b;
  --plan-border: #e4e6eb;
  width: min(1140px, calc(100% - 32px));
  max-height: calc(100dvh - 48px);
  padding: 24px;
  border: 1px solid #ffffff;
  border-radius: 16px;
  background: #f0f2f5;
  color: var(--plan-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", sans-serif;
  box-shadow: 0 24px 80px #1c2b3333, 0 2px 8px #1c2b3314;
  overflow: auto;
}
#plan-dialog[open] { animation: plan-enter 160ms ease-out; }
#plan-dialog::backdrop { background: #1c2b3370; backdrop-filter: blur(5px); }
#plan-dialog .plan-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
#plan-dialog .plan-type { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 9999px; background: #ffffff; color: var(--plan-blue); font-size: 12px; line-height: 20px; font-weight: 600; }
#plan-dialog #plan-close { display: grid; place-items: center; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 50%; background: #e4e6eb; color: #465a69; transition: background 160ms ease; }
#plan-dialog #plan-close:hover { background: #ced0d4; }
#plan-dialog .plan-heading { display: flex; align-items: center; gap: 24px; margin: 12px 0 24px; }
#plan-dialog .plan-heading h1 { margin: 0; font-size: 28px; line-height: 1.3; font-weight: 700; letter-spacing: -.03em; white-space: nowrap; }
#plan-dialog .plan-heading-line { height: 1px; flex: 1; background: #ced0d4; }
#plan-dialog #plan-editor { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%; height: auto; min-height: 0; max-height: none; padding: 0; border: 0; border-radius: 0; background: transparent; resize: none; overflow: visible; font: inherit; color: inherit; }
#plan-dialog .plan-card { min-width: 0; padding: 20px; border: 1px solid var(--plan-border); border-radius: 12px; background: #ffffff; box-shadow: 0 1px 2px #1c2b330a; }
#plan-dialog .plan-card-wide { grid-column: 1 / -1; }
#plan-dialog .plan-card-header { display: flex; align-items: center; gap: 8px; min-height: 32px; margin: 0 0 16px; }
#plan-dialog .plan-card-icon { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; background: #f0f2f5; color: var(--plan-blue); flex-shrink: 0; }
#plan-dialog .plan-card h3 { margin: 0; color: var(--plan-muted); font-size: 13px; font-weight: 600; line-height: 1.4; }
#plan-dialog .plan-card-number { margin-left: auto; color: #65676b; font-size: 12px; font-variant-numeric: tabular-nums; }
#plan-dialog .plan-card p { min-height: 0; margin: 0; font-size: 17px; font-weight: 600; line-height: 1.65; letter-spacing: -.025em; word-break: keep-all; overflow-wrap: anywhere; }
#plan-dialog .plan-card p + p { margin-top: 8px; }
#plan-dialog .plan-card .plan-empty { color: #8a8d91; font-weight: 400; }
#plan-dialog .plan-card-wide .plan-card-header { margin-bottom: 8px; }
#plan-dialog .plan-footer { display: flex; align-items: center; gap: 8px; margin-top: 20px; }
#plan-dialog .plan-footer-dot { width: 4px; height: 4px; border-radius: 50%; background: #8a8d91; flex-shrink: 0; }
#plan-dialog .plan-hint { margin: 0; color: var(--plan-muted); font-size: 12px; line-height: 1.6; }
#plan-dialog button:focus-visible { outline: 2px solid var(--plan-blue); outline-offset: 3px; }
.plan-launch { border: 0; border-radius: 9999px; background: #0064e0; box-shadow: 0 4px 16px #1c2b3324; font-size: 14px; font-weight: 600; transition: background 160ms ease; }
.plan-launch:hover { background: #0058c4; }
.plan-launch:focus-visible { outline: 2px solid #0064e0; outline-offset: 3px; }
@keyframes plan-enter { from { opacity: 0; transform: translateY(8px) scale(.99); } to { opacity: 1; transform: translateY(0) scale(1); } }
@media (max-width: 600px) {
  #plan-dialog { padding: 16px; max-height: calc(100dvh - 32px); }
  #plan-dialog .plan-heading { margin: 12px 0 20px; gap: 16px; }
  #plan-dialog .plan-heading h1 { font-size: 24px; }
  #plan-dialog #plan-editor { grid-template-columns: 1fr; }
  #plan-dialog .plan-card { padding: 16px; }
  #plan-dialog .plan-card-header { margin-bottom: 12px; }
  #plan-dialog .plan-card p { font-size: 16px; }
  #plan-dialog .plan-footer { margin-top: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  #plan-dialog[open] { animation: none; }
  #plan-dialog #plan-close, .plan-launch { transition: none; }
}

#plan-dialog .plan-value-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 16px; }
#plan-dialog .plan-value-field { padding: 12px; border: 1px solid var(--plan-border); border-radius: 8px; background: #f7f8fa; }
#plan-dialog .plan-value-field h4 { margin: 0 0 8px; font-size: 13px; font-weight: 600; line-height: 1.5; color: var(--plan-ink); word-break: keep-all; }
#plan-dialog .plan-value-field p { font-size: 14px; font-weight: 400; line-height: 1.6; }
@media (max-width: 600px) {
  #plan-dialog .plan-value-grid { grid-template-columns: 1fr; }
}

#plan-dialog .plan-value-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
#plan-dialog .plan-value-field { grid-column: span 2; }
#plan-dialog .plan-value-researched { grid-column: span 3; }
#plan-dialog .plan-value-researched p { font-size: 13px; }
#plan-dialog .plan-source-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
#plan-dialog .plan-source-links a, #plan-dialog .plan-research a { color: var(--plan-blue); font-size: 12px; text-underline-offset: 3px; }
#plan-dialog .plan-source-links a:focus-visible, #plan-dialog .plan-research :is(a, summary):focus-visible { outline: 2px solid var(--plan-blue); outline-offset: 3px; }
#plan-dialog .plan-research { margin-top: 16px; border-top: 1px solid var(--plan-border); padding-top: 12px; }
#plan-dialog .plan-research summary { font-size: 12px; color: var(--plan-muted); cursor: pointer; line-height: 1.6; }
#plan-dialog .plan-research p { margin-top: 12px; font-size: 12px; font-weight: 400; color: var(--plan-muted); line-height: 1.7; }
@media (max-width: 600px) {
  #plan-dialog .plan-value-grid { grid-template-columns: 1fr; }
  #plan-dialog .plan-value-field { grid-column: auto; }
}

#plan-dialog .plan-value-field p.plan-key-point { padding: 8px 12px; border-left: 3px solid var(--plan-blue); border-radius: 0 6px 6px 0; background: #ffffff; color: var(--plan-blue); font-weight: 600; }

#plan-dialog .plan-tabs { display: flex; gap: 4px; padding: 4px; margin-bottom: 16px; width: fit-content; max-width: 100%; border-radius: 8px; background: #e4e6eb; }
#plan-dialog .plan-tabs button { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border: 0; border-radius: 6px; background: transparent; color: var(--plan-muted); font-size: 13px; font-weight: 600; line-height: 1.6; }
#plan-dialog .plan-tabs button[aria-selected="true"] { background: #ffffff; color: var(--plan-ink); box-shadow: 0 1px 2px #1c2b3314; }
#plan-dialog .plan-tabs button:hover { color: var(--plan-blue); }
#plan-dialog .plan-tabs button span { font-size: 12px; color: var(--plan-blue); font-variant-numeric: tabular-nums; }
#plan-dialog [role="tabpanel"]:focus-visible { outline: 2px solid var(--plan-blue); outline-offset: 3px; border-radius: 8px; }
#plan-dialog .plan-copy-selected { padding: 24px; margin-bottom: 16px; border: 1px solid var(--plan-border); border-radius: 12px; background: #ffffff; }
#plan-dialog .plan-copy-selected p { margin: 16px 0 0; color: var(--plan-ink); font-size: 28px; font-weight: 700; line-height: 1.5; letter-spacing: -.03em; white-space: pre-line; word-break: keep-all; }
#plan-dialog .plan-copy-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
#plan-dialog .plan-copy-card { padding: 20px; border: 1px solid var(--plan-border); border-radius: 12px; background: #ffffff; }
#plan-dialog .plan-copy-number { color: var(--plan-blue); font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
#plan-dialog .plan-copy-card h3 { margin: 12px 0 8px; font-size: 17px; line-height: 1.6; font-weight: 600; letter-spacing: -.025em; word-break: keep-all; }
#plan-dialog .plan-copy-card p { margin: 0; color: var(--plan-muted); font-size: 13px; line-height: 1.7; word-break: keep-all; overflow-wrap: anywhere; }
@media (max-width: 600px) {
  #plan-dialog .plan-copy-list { grid-template-columns: 1fr; }
  #plan-dialog .plan-copy-selected, #plan-dialog .plan-copy-card { padding: 16px; }
  #plan-dialog .plan-copy-selected p { font-size: 24px; }
  #plan-dialog .plan-tabs button { padding: 8px 12px; }
}

#plan-dialog .plan-copy-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
#plan-dialog .plan-copy-usage { padding: 4px 8px; border-radius: 6px; background: #f0f2f5; color: var(--plan-muted); font-size: 12px; line-height: 1.4; }