/* 레이아웃: 왼쪽 고정 메뉴 + 오른쪽 대시보드. 좁으면 메뉴가 위로 접힌다 */
:root {
  --color-bg: #f6f7f9;
  --color-panel: #ffffff;
  --color-fg: #1b1f24;
  --color-fg-muted: #5f6873;
  --color-border-line: #e2e5ea;
  --color-ok: #1f8a4c;
  --color-warn: #b26a00;
  --color-bad: #c8372d;
  --nav-bg: #14212b;
  --nav-fg: #d9e2ea;
  --nav-muted: #8a9aa8;
  --nav-active: #2f6fdf;

  --font-anthropic-sans: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --font-anthropic-serif: "Noto Serif KR", "AppleMyungjo", "Batang", serif;
  --cds-font-size-caption: 12px;
  --cds-font-size-body: 14px;
  --cds-font-size-heading: 16px;
  --cds-font-size-title: 26px;
  --cds-font-weight-medium: 600;
  --cds-gap-xs: 4px; --cds-gap-sm: 8px; --cds-gap-md: 14px; --cds-gap-lg: 22px; --cds-gap-xl: 32px;
  --cds-pad-xs: 4px; --cds-pad-sm: 8px; --cds-pad-md: 12px; --cds-pad-lg: 18px; --cds-pad-xl: 28px;
  --cds-radius: 8px;
  --cds-chart-muted: #c3c8cf;
  --cds-chart-grid: #eceef1;
  --cds-chart-axis: #a3aab3;
  --cds-chart-reference: #7d8590;
  --cds-surface-popover: #ffffff;
  --cds-border: #d7dbe0;
  --cds-shadow-popover: 0 6px 20px rgba(20, 33, 43, .14);
  --cds-text-secondary: #5f6873;
  --cds-dur-slow: .3s;
  --series-1: #2f6fdf; --series-2: #e07b39; --series-3: #2a9d8f; --series-4: #9b5de5;
  --series-5: #d1495b; --series-6: #5c8001; --series-7: #00798c; --series-8: #6c757d;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #11161b; --color-panel: #19212a; --color-fg: #e6ebf0; --color-fg-muted: #9aa6b2;
    --color-border-line: #2a343f; --color-ok: #4cc27f; --color-warn: #e0a440; --color-bad: #ef6b60;
    --nav-bg: #0b1015; --cds-chart-muted: #4d5864; --cds-chart-grid: #232c36; --cds-chart-axis: #5d6874;
    --cds-chart-reference: #8f9aa6; --cds-surface-popover: #222b35; --cds-border: #34404c;
    --cds-text-secondary: #9aa6b2; --series-1: #5b93f5; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --color-bg: #11161b; --color-panel: #19212a; --color-fg: #e6ebf0; --color-fg-muted: #9aa6b2;
  --color-border-line: #2a343f; --color-ok: #4cc27f; --color-warn: #e0a440; --color-bad: #ef6b60;
  --nav-bg: #0b1015; --cds-chart-muted: #4d5864; --cds-chart-grid: #232c36; --cds-chart-axis: #5d6874;
  --cds-chart-reference: #8f9aa6; --cds-surface-popover: #222b35; --cds-border: #34404c;
  --cds-text-secondary: #9aa6b2; --series-1: #5b93f5; color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--color-bg); color: var(--color-fg); font-family: var(--font-anthropic-sans); font-size: 14px; }

.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100%; }
.nav { background: var(--nav-bg); color: var(--nav-fg); padding: 20px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto; display: flex; flex-direction: column; gap: 18px; }
.nav-brand { display: grid; gap: 2px; padding: 0 8px; }
.nav-brand strong { font-size: 15px; letter-spacing: .01em; }
.nav-brand span { font-size: 12px; color: var(--nav-muted); }
.nav-group { display: grid; gap: 2px; }
.nav-group h3 { margin: 0 0 4px; padding: 0 8px; font-size: 11px; font-weight: 600; letter-spacing: .08em; color: var(--nav-muted); }
.nav a { display: grid; gap: 1px; padding: 8px 10px; border-radius: 6px; color: var(--nav-fg); text-decoration: none; font-size: 13px; }
.nav a small { color: var(--nav-muted); font-size: 11px; }
.nav a:hover { background: rgba(255, 255, 255, .06); }
.nav a[aria-current="page"] { background: var(--nav-active); color: #fff; }
.nav a[aria-current="page"] small { color: rgba(255, 255, 255, .8); }
.nav a:focus-visible, .nav-toggle:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.nav-foot { margin-top: auto; padding: 0 8px; font-size: 11px; color: var(--nav-muted); line-height: 1.5; }
.nav-toggle { display: none; }

.main { min-width: 0; padding-block: 24px 48px; padding-inline: clamp(16px, 3vw, 40px); }
#dash-root { max-width: 1280px; margin-inline: auto; }
.empty { color: var(--color-fg-muted); padding: 40px 0; }

.dash-skeleton { color: transparent !important; position: relative; }
.dash-skeleton::after { content: ""; position: absolute; left: 0; top: 50%; width: min(6em, 80%); height: .7em; transform: translateY(-50%); border-radius: 4px; background: var(--cds-chart-grid); }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .nav { position: static; height: auto; padding: 12px 16px; gap: 10px; }
  .nav-toggle { display: inline-block; justify-self: start; font: inherit; font-size: 12px; color: var(--nav-fg); background: transparent; border: 1px solid var(--nav-muted); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
  .nav.collapsed .nav-group, .nav.collapsed .nav-foot { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }