:root {
  --ink: #101310;
  --ink-soft: #242a25;
  --ink-muted: #4f5750;
  --paper: #f5f3ec;
  --paper-soft: #ece9df;
  --panel: #fffef9;
  --lime: #d3ff45;
  --lime-soft: #f3ffc9;
  --border: #c9cdc3;
  --border-strong: #8e968d;
  --danger: #a52a2a;
  --radius: 18px;
  --content: 1240px;
  --font-sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --feedback: 120ms ease;
  --state: 200ms ease;
}

* { box-sizing: border-box; }

html { color-scheme: light; background: var(--paper); }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(rgba(16, 19, 16, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 19, 16, .045) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: var(--font-sans);
  line-height: 1.55;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--lime);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  padding: 0 max(20px, calc((100vw - var(--content)) / 2));
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--ink);
  background: rgba(245, 243, 236, .96);
  backdrop-filter: blur(10px);
}

.brand {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img { width: 44px; height: 44px; }
.brand span { display: grid; line-height: 1.05; }
.brand strong { font-size: 20px; letter-spacing: .04em; }
.brand small { margin-top: 5px; font: 10px/1 var(--font-mono); letter-spacing: .09em; }

.site-state {
  min-height: 72px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 700 12px/1 var(--font-mono);
  letter-spacing: .04em;
}

.site-state i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 1px var(--ink); }

.activity-strip {
  min-height: 44px;
  padding: 0 max(20px, calc((100vw - var(--content)) / 2));
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--ink);
  background: var(--lime);
}

.activity-strip strong,
.activity-controls small { font: 700 11px/1.3 var(--font-mono); letter-spacing: .05em; }
#activity-message { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.activity-controls { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.activity-controls small { color: var(--ink-muted); }
.activity-toggle {
  min-width: 44px;
  min-height: 44px;
  padding: 0 9px;
  border: 0;
  border-left: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font: 700 11px/1 var(--font-mono);
  cursor: pointer;
}
.activity-toggle:hover,
.activity-toggle:focus-visible { background: var(--ink); color: var(--lime); outline: 0; }
.activity-toggle[hidden] { display: none; }

main {
  width: min(var(--content), calc(100% - 40px));
  min-height: calc(100vh - 146px);
  margin: 0 auto;
  padding: 28px 0 64px;
}

.content-heading {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.content-heading { margin-bottom: 16px; }
.content-title { display: flex; align-items: baseline; gap: 12px; }

.section-panel > header span,
.menu-card > span,
.entry-card > span,
.report-card > span,
.empty-state > span {
  margin: 0;
  font: 700 12px/1.2 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.content-heading h1 {
  margin: 0;
  font-size: clamp(24px, 2.5vw, 32px);
  line-height: 1.15;
  letter-spacing: -.035em;
}

.content-heading p { margin: 0; font: 700 12px/1.2 var(--font-mono); letter-spacing: .04em; color: var(--ink-muted); }

.portal-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

.portal {
  position: relative;
  min-height: 220px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--panel);
  text-decoration: none;
  transition: background var(--feedback);
}

.portal:hover,
.portal:focus-visible { background: var(--lime); }
.portal-code { position: relative; z-index: 2; font: 700 12px/1 var(--font-mono); letter-spacing: .08em; }
.portal strong { position: relative; z-index: 2; margin-top: auto; font-size: clamp(30px, 3vw, 42px); line-height: 1; letter-spacing: -.045em; }
.portal > span:not(.portal-code) { position: relative; z-index: 2; max-width: 420px; margin-top: 10px; color: var(--ink-muted); font-size: 14px; }
.portal b { position: relative; z-index: 2; margin-top: 18px; font-size: 14px; }
.portal b i { display: inline-block; font-style: normal; transition: transform var(--feedback); }
.portal:hover b i { transform: translate(3px, -3px); }

.portal-mark,
.menu-mark,
.report-mark {
  position: absolute;
  width: 150px;
  height: 150px;
  object-fit: contain;
  pointer-events: none;
}

.portal-mark { top: -38px; right: -34px; opacity: .13; }
.portal:hover .portal-mark { opacity: .24; }

.breadcrumbs {
  min-height: 44px;
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  color: var(--ink-muted);
  font-size: 14px;
}

.breadcrumbs a { min-height: 44px; display: inline-flex; align-items: center; }
.breadcrumbs span { color: var(--ink); font-weight: 700; }
.breadcrumbs i { font-style: normal; }

.section-panel { padding: 20px; border: 1px solid var(--ink); border-radius: var(--radius); background: var(--panel); }
.section-panel > header { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 5px 20px; margin-bottom: 16px; }
.section-panel > header span { grid-column: 1 / -1; }
.section-panel h2 { margin: 0; font-size: 30px; letter-spacing: -.035em; }
.section-panel header small { font-family: var(--font-mono); }
.snapshot-note { margin: -4px 0 16px; color: var(--ink-muted); font-size: 14px; }

.entry-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.entry-card {
  min-height: 124px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--paper);
  text-decoration: none;
}
.entry-card strong { margin-top: auto; font-size: 20px; line-height: 1.2; }
.entry-card small { margin-top: 8px; color: var(--ink-muted); }
.entry-card:not(.is-pending):hover { background: var(--lime); border-color: var(--ink); }
.entry-card.is-pending { border-style: dashed; }

.menu-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.menu-card {
  position: relative;
  min-height: 176px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  transition: background var(--feedback);
}
.menu-card:hover,
.menu-card:focus-visible,
.menu-card:active { background: var(--lime); }
.menu-card h2 { position: relative; z-index: 2; margin: auto 0 0; font-size: 28px; line-height: 1.05; letter-spacing: -.04em; }
.menu-card .english-label { position: relative; z-index: 2; margin-top: 8px; font: 700 12px/1.2 var(--font-mono); letter-spacing: .04em; color: var(--ink-muted); }
.menu-card p { position: relative; z-index: 2; margin: 12px 0 0; color: var(--ink-muted); font-size: 14px; }
.menu-card b { position: relative; z-index: 2; margin-top: 12px; font: 700 13px/1.2 var(--font-mono); }
.menu-card b i { display: inline-block; font-style: normal; transition: transform var(--feedback); }
.menu-card:hover b i { transform: translate(3px, -3px); }
.menu-mark { top: -36px; right: -32px; opacity: .12; }

.report-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.report-card {
  position: relative;
  min-height: 185px;
  padding: 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-content: space-between;
  gap: 12px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--paper);
  text-decoration: none;
  transition: background var(--feedback);
}
.report-card:hover { background: var(--lime); border-color: var(--ink); }
.report-card time { font: 12px/1.2 var(--font-mono); }
.report-card strong { grid-column: 1 / -1; position: relative; z-index: 2; margin-top: 42px; font-size: 18px; line-height: 1.25; }
.report-card small { grid-column: 1 / -1; position: relative; z-index: 2; }
.report-mark { width: 100px; height: 100px; top: 22px; right: -22px; opacity: .08; }

.empty-state { min-height: 220px; padding: 28px; display: grid; place-content: center; text-align: center; border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--panel); }
.empty-state h1,
.empty-state h2 { margin: 12px 0 8px; font-size: clamp(32px, 5vw, 54px); line-height: 1; letter-spacing: -.045em; }
.empty-state p { max-width: 560px; margin: 0; color: var(--ink-muted); }

.site-footer {
  min-height: 74px;
  padding: 20px max(20px, calc((100vw - var(--content)) / 2));
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font: 12px/1.4 var(--font-mono);
}

@media (max-width: 920px) {
  .entry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .report-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .site-header { position: static; min-height: 0; padding: 8px 16px; }
  .brand { min-height: 52px; }
  .brand img { width: 38px; height: 38px; }
  .site-state { min-height: 52px; }
  .activity-strip { padding: 0 16px; grid-template-columns: auto minmax(0, 1fr) auto; gap: 0 8px; }
  .activity-controls { justify-self: end; }
  main { width: min(100% - 28px, var(--content)); padding: 18px 0 42px; }
  .content-heading { align-items: baseline; flex-wrap: wrap; }
  .content-title { flex-wrap: wrap; }
  .content-heading h1 { font-size: 26px; }
  .portal-grid,
  .menu-card-grid,
  .entry-grid,
  .report-grid { grid-template-columns: 1fr; }
  .portal { min-height: 194px; }
  .section-panel { padding: 18px; }
  .section-panel > header { grid-template-columns: 1fr; }
  .section-panel header small { margin-top: 4px; }
  .entry-card { min-height: 116px; }
  .report-card { min-height: 170px; }
  .site-footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* 2ndann internal project route v14 */
.project-workbench-shell {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--panel);
}
.project-workbench-frame {
  display: block;
  width: 100%;
  min-height: 720px;
  height: calc(100vh - 220px);
  height: max(720px, calc(100dvh - 220px));
  border: 0;
  background: var(--paper);
}
@media (max-width: 680px) {
  .project-workbench-shell {
    margin-inline: -14px;
    width: calc(100% + 28px);
    border-inline: 0;
    border-radius: 0;
  }
  .project-workbench-frame {
    min-height: 640px;
    height: calc(100vh - 180px);
    height: calc(100dvh - 180px);
  }
}