/* ====== 기본 레이아웃: Sidebar + Main ====== */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Roboto, sans-serif;
  color: #111827;
  background: #F0F2F5;
}

body { display: flex; }

a { color: inherit; text-decoration: none; }

/* Sidebar */
.sidebar {
  width: 200px;
  flex: 0 0 200px;
  height: 100vh;
  background: #FFFFFF;
  border-right: 1px solid #E5E7EB;
  padding: 16px;
  display: flex;
  flex-direction: column;
  position: sticky; top: 0;
}

.sidebar .logo { padding: 8px 0 16px; }
.sidebar .logo-text { font-size: 18px; font-weight: 700; color: #111827; }

.sidebar .nav-section { display: flex; flex-direction: column; gap: 2px; padding: 8px 0; }
.sidebar .nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
  color: #374151; font-size: 13px;
  user-select: none;
}
.sidebar .nav-item:hover { background: #F9FAFB; }
.sidebar .nav-item.active { background: #EFF6FF; color: #2563EB; font-weight: 600; }
.sidebar .nav-item.active .icon { color: #2563EB; }
.sidebar .nav-item .icon { color: #6B7280; width: 18px; height: 18px; display: inline-flex; align-items: center; justify-content: center; }

.sidebar .divider { height: 1px; background: #E5E7EB; margin: 12px 0 4px; }

.sidebar .spacer { flex: 1 1 auto; }
.sidebar .footer { padding: 8px 0; text-align: center; color: #9CA3AF; font-size: 10px; }

/* Main */
.main {
  flex: 1 1 auto;
  display: flex; flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

.topbar {
  background: #FFFFFF;
  border-bottom: 1px solid #E5E7EB;
  padding: 20px 32px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px;
}

.topbar .title { font-size: 22px; font-weight: 700; color: #111827; margin: 0 0 4px; }
.topbar .subtitle { font-size: 13px; color: #6B7280; }
.topbar .right { display: flex; align-items: center; gap: 12px; }

.subbar {
  background: #FFFFFF;
  border-bottom: 1px solid #E5E7EB;
  padding: 0 32px;
  display: flex; align-items: center; gap: 0;
}

.view { flex: 1; padding: 24px 32px; overflow: auto; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #D1D5DB; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #9CA3AF; }
::-webkit-scrollbar-track { background: transparent; }

/* Modal overlay */
.modal-root {
  position: fixed; inset: 0;
  background: rgba(17, 23, 39, 0.45);
  display: flex; align-items: center; justify-content: center;
  padding: 40px; z-index: 100;
}
.modal-root[hidden] { display: none; }
.modal {
  width: min(1200px, 100%); height: min(780px, 100%);
  background: #FFFFFF; border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
  display: flex; flex-direction: column; overflow: hidden;
}

/* ====== Hamburger menu (mobile only) ====== */
/* Default: hidden on desktop */
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid #E5E7EB;
  border-radius: 6px;
  padding: 6px 8px;
  cursor: pointer;
  color: #374151;
  margin-right: 8px;
  flex: 0 0 auto;
}
.menu-toggle:hover { background: #F9FAFB; }
.menu-toggle svg { display: block; }

/* Sidebar backdrop (mobile) — sits behind the slide-in sidebar */
.sidebar-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(17, 23, 39, 0.45);
  z-index: 90;
}
.sidebar-backdrop.open { display: block; }

/* ====== Mobile breakpoint ====== */
@media (max-width: 768px) {
  /* Sidebar becomes a slide-in panel */
  .sidebar {
    position: fixed; top: 0; left: 0;
    width: 240px; flex: 0 0 240px;
    height: 100vh; z-index: 110;
    transform: translateX(-100%);
    transition: transform 0.22s ease-out;
    box-shadow: 2px 0 16px rgba(0, 0, 0, 0.12);
  }
  .sidebar.open { transform: translateX(0); }

  /* Hamburger visible on mobile */
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }

  /* Tighten the main column for narrow screens */
  body { display: block; }
  .main { min-height: 100vh; }
  .topbar {
    padding: 12px 14px;
    align-items: flex-start;
  }
  .topbar .title { font-size: 18px; }
  .topbar .subtitle { font-size: 12px; }
  .topbar .right { flex-wrap: wrap; gap: 8px; }
  .subbar { padding: 0 14px; }
  .view { padding: 14px; }

  /* Avoid horizontal overflow inside the view body */
  .view img,
  .view table,
  .view pre,
  .view iframe { max-width: 100%; }
  .view pre { overflow-x: auto; }
}

/* Very narrow phones — push the topbar layout to wrap */
@media (max-width: 480px) {
  .topbar { flex-direction: column; align-items: stretch; gap: 8px; padding: 12px; }
  .topbar .right { justify-content: flex-start; }
}