:root {
  --bg: #f3f6fb;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: #ffffff;
  --line: #dde4ef;
  --line-strong: #c9d5e7;
  --text: #111827;
  --muted: #667085;
  --primary: #2463eb;
  --primary-strong: #1747af;
  --primary-soft: rgba(36, 99, 235, 0.09);
  --ok: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --shadow: 0 22px 60px rgba(15, 23, 42, 0.08);
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Pretendard, Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(36, 99, 235, 0.13), transparent 26%),
    linear-gradient(180deg, #eef4fb 0%, #f7f9fc 44%, #eef3f9 100%);
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible {
  outline: 3px solid rgba(36, 99, 235, 0.28);
  outline-offset: 2px;
}

.app-shell {
  width: min(1440px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 1.5rem;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1rem;
}
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.eyebrow {
  margin: 0 0 0.45rem;
  color: #3055ba;
  font-size: 0.77rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.sidebar {
  position: sticky;
  top: 1rem;
  align-self: start;
  padding: 1.25rem;
}
.brand-block h1,
.hero h2,
.section-head h3,
.content-head h3 {
  margin: 0;
  letter-spacing: -0.03em;
}
.brand-block h1 {
  font-size: 1.3rem;
  line-height: 1.3;
}
.major-menu {
  display: grid;
  gap: 0.65rem;
  margin-top: 1.15rem;
}
.major-menu-button,
.sub-menu-button,
.owner-chip,
.quick-chip {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}
.major-menu-button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 0.95rem;
  border-radius: var(--radius-md);
  text-align: left;
  font-weight: 800;
}
.major-menu-button.active {
  border-color: rgba(36, 99, 235, 0.28);
  background: linear-gradient(180deg, #ffffff, #f0f5ff);
  color: #17337c;
}
.major-menu-title {
  display: block;
}
.major-menu-count,
.muted-chip,
.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
}
.major-menu-count,
.muted-chip {
  border: 1px solid var(--line);
  background: #f8fafc;
  color: var(--muted);
}
.status-badge {
  background: rgba(22, 163, 74, 0.12);
  color: #166534;
}
.main-shell {
  display: grid;
  gap: 1rem;
}
.hero {
  padding: 1.15rem;
}
.hero-topline {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
}
.hero h2 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}
.hero-actions,
.toolbar,
.toolbar-side,
.filter-block,
.sub-menu,
.owner-filter,
.quick-chip-row,
.meta-row,
.budget-progress-head,
.board-tags,
.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.primary-button,
.ghost-button {
  border-radius: 14px;
  padding: 0.78rem 0.98rem;
  font-weight: 900;
}
.primary-button {
  border: 0;
  background: var(--primary);
  color: #fff;
}
.primary-button:hover { background: var(--primary-strong); }
.ghost-button {
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--text);
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1rem;
}
.hero-metrics article,
.summary-card,
.info-card,
.owner-card,
.board-card,
.list-card,
.timeline-card,
.kpi-card,
.calendar-day,
.log-card,
.budget-card,
.message-card,
.study-card,
.room-card,
.participant-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
}
.hero-metrics article {
  padding: 0.9rem 1rem;
}
.hero-metrics span,
.meta-label,
.helper-text,
.item-meta,
.owner-card small,
.budget-progress-caption,
.calendar-day time,
.message-card small,
.log-card time,
.resource-links a {
  color: var(--muted);
}
.hero-metrics strong {
  display: block;
  margin-top: 0.28rem;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}
.toolbar {
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1rem;
}
.sub-menu-button,
.owner-chip,
.quick-chip {
  border-radius: 999px;
  padding: 0.65rem 0.9rem;
  font-weight: 800;
}
.sub-menu-button.active,
.owner-chip.active,
.quick-chip.active {
  border-color: rgba(36, 99, 235, 0.24);
  background: var(--primary-soft);
  color: #16357b;
}
.filter-block {
  align-items: center;
}
.filter-block span {
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--muted);
}
.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(0, 1.05fr);
  gap: 1rem;
}
.live-panel,
.owner-panel,
.content-section {
  padding: 1rem;
}
.compact-head,
.content-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.85rem;
}
.summary-card {
  padding: 0.95rem 1rem;
  margin-bottom: 0.85rem;
}
.summary-card strong {
  display: block;
  font-size: 1rem;
}
.summary-card p {
  margin: 0.4rem 0 0;
  line-height: 1.6;
  color: var(--muted);
}
.task-list,
.notice-list,
.detail-list,
.simple-list,
.study-list,
.log-list,
.room-list,
.participant-list {
  display: grid;
  gap: 0.75rem;
}
.task-list,
.notice-list,
.simple-list,
.study-list,
.log-list,
.room-list,
.participant-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.task-item,
.notice-card,
.list-item,
.study-item,
.log-card,
.room-card,
.participant-card {
  padding: 0.95rem 1rem;
}
.task-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #ffffff, #f7faff);
}
.task-title-row,
.owner-card-head,
.message-card-head,
.budget-row,
.participant-card-head {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: start;
}
.priority-badge,
.state-badge,
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.28rem 0.58rem;
  font-size: 0.74rem;
  font-weight: 900;
}
.priority-high { background: rgba(220, 38, 38, 0.12); color: #b91c1c; }
.priority-medium { background: rgba(217, 119, 6, 0.12); color: #b45309; }
.priority-low { background: rgba(22, 163, 74, 0.12); color: #166534; }
.state-live { background: rgba(36, 99, 235, 0.12); color: #1d4ed8; }
.state-ready { background: rgba(22, 163, 74, 0.12); color: #166534; }
.state-pending { background: rgba(148, 163, 184, 0.16); color: #475569; }
.tag { background: #eff4fb; color: #38506b; }
.task-item p,
.notice-card p,
.list-item p,
.study-item p,
.room-card p,
.participant-card p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}
.owner-cards,
.content-grid.two,
.content-grid.three,
.content-grid.four,
.calendar-grid,
.resource-grid,
.participant-grid,
.message-grid,
.board-grid,
.budget-grid,
.study-grid,
.room-grid {
  display: grid;
  gap: 0.85rem;
}
.owner-cards,
.content-grid.three,
.resource-grid,
.participant-grid,
.study-grid,
.room-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.content-grid.two,
.message-grid,
.budget-grid,
.board-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.content-grid.four,
.calendar-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.owner-card,
.info-card,
.board-card,
.list-card,
.timeline-card,
.kpi-card,
.calendar-day,
.budget-card,
.message-card,
.study-card,
.room-card,
.participant-card {
  padding: 1rem;
}
.owner-card strong,
.board-card strong,
.info-card strong,
.study-card strong,
.room-card strong,
.participant-card strong {
  font-size: 1rem;
}
.owner-card ul,
.detail-list,
.study-list,
.room-list,
.participant-list {
  margin-top: 0.75rem;
}
.detail-list {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0;
}
.detail-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px dashed var(--line);
}
.detail-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.detail-list strong { font-size: 0.92rem; }
.content-area {
  display: grid;
  gap: 1rem;
}
.content-section {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
}
.content-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}
.content-head p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}
.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;
}
.kpi-card {
  padding: 1rem;
}
.kpi-card span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}
.kpi-card strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.35rem;
}
.timeline-card .meta-row,
.board-card .meta-row,
.message-card .meta-row { margin-top: 0.7rem; }
.calendar-day {
  min-height: 170px;
  display: grid;
  gap: 0.65rem;
  align-content: start;
}
.calendar-day time {
  font-size: 0.9rem;
  font-weight: 800;
}
.calendar-day ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.calendar-day li {
  padding: 0.55rem 0.65rem;
  border-radius: 12px;
  background: #f7faff;
  border: 1px solid #e6edf6;
  line-height: 1.45;
}
.budget-card strong,
.budget-row strong {
  font-size: 1rem;
}
.budget-row {
  padding: 0.8rem 0;
  border-bottom: 1px dashed var(--line);
}
.budget-row:last-child { border-bottom: 0; padding-bottom: 0; }
.progress-bar {
  height: 10px;
  margin-top: 0.75rem;
  border-radius: 999px;
  background: #e8eef8;
  overflow: hidden;
}
.progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2463eb, #60a5fa);
}
.message-card textarea,
.log-card pre {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f8fafc;
  color: var(--text);
  padding: 0.8rem;
  margin-top: 0.75rem;
}
.message-card textarea {
  min-height: 120px;
  resize: vertical;
}
.log-card pre {
  overflow: auto;
  white-space: pre-wrap;
  line-height: 1.55;
}
.resource-links a {
  text-decoration: none;
  font-weight: 800;
}
.helper-text {
  margin: 0;
  line-height: 1.55;
}
.mobile-only { display: none; }

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
  .major-menu {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .dashboard-grid,
  .hero-metrics,
  .content-grid.four,
  .calendar-grid,
  .owner-cards,
  .content-grid.three,
  .resource-grid,
  .participant-grid,
  .study-grid,
  .room-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100%, calc(100% - 1rem));
    padding-top: 0.5rem;
  }
  .sidebar,
  .hero,
  .toolbar,
  .live-panel,
  .owner-panel,
  .content-section {
    padding: 0.95rem;
  }
  .major-menu,
  .dashboard-grid,
  .hero-metrics,
  .content-grid.two,
  .content-grid.three,
  .content-grid.four,
  .calendar-grid,
  .resource-grid,
  .participant-grid,
  .message-grid,
  .board-grid,
  .budget-grid,
  .study-grid,
  .room-grid,
  .owner-cards {
    grid-template-columns: 1fr;
  }
  .toolbar,
  .hero-topline,
  .compact-head,
  .content-head,
  .task-title-row,
  .owner-card-head,
  .message-card-head,
  .budget-row,
  .participant-card-head {
    flex-direction: column;
    align-items: start;
  }
  .major-menu {
    grid-template-columns: 1fr 1fr;
  }
  .toolbar-side,
  .sub-menu,
  .owner-filter,
  .hero-actions {
    width: 100%;
  }
  .sub-menu-button,
  .owner-chip,
  .quick-chip,
  .primary-button,
  .ghost-button {
    width: 100%;
    justify-content: center;
  }
  .mobile-only { display: inline-flex; }
}