/* ===========================================================
   社内システム — Interactive Prototype (B · Soft Card)
   =========================================================== */

:root {
  --bg:        #f4f5f7;
  --panel:     #ffffff;
  --panel-2:   #f9fafb;
  --border:    #e8eaee;
  --border-2:  #eef0f3;
  --text:      #16181d;
  --text-2:    #4a4f59;
  --muted:     #8b909b;
  --accent:    #2563eb;
  --accent-50: #eff5ff;
  --accent-100:#dbe7ff;
  --accent-fg: #ffffff;
  --ok:        #128a5b;
  --ok-50:     #e7f5ee;
  --warn:      #b56c0a;
  --warn-50:   #fdf2e2;
  --danger:    #c4332c;
  --danger-50: #fbeae8;
  --radius:    10px;
  --radius-lg: 14px;
  --radius-sm: 6px;
  --shadow:    0 1px 2px rgba(20,22,28,.04), 0 1px 1px rgba(20,22,28,.03);
  --shadow-2:  0 4px 16px rgba(20,22,28,.08), 0 1px 2px rgba(20,22,28,.04);
  --shadow-3:  0 16px 48px rgba(20,22,28,.18), 0 4px 12px rgba(20,22,28,.08);
  --transition: 140ms cubic-bezier(.2,.7,.3,1);

  --font-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-num:  "IBM Plex Sans", "Noto Sans JP", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body, #root { width: 100%; height: 100%; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 11.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow: auto;
}

input, button, textarea, select { font-family: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

.tnum { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.mono { font-family: var(--font-mono); }

/* ────── Card ────── */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.card-pad { padding: 16px; }
.card-pad-lg { padding: 20px; }

/* ────── Buttons ────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 8px 14px;
  font-size: 13px; font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel); color: var(--text);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:hover { background: var(--panel-2); border-color: #dadde2; }
.btn:active { transform: translateY(0.5px); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(.95); background: var(--accent); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--panel-2); }
.btn.danger { color: var(--danger); border-color: var(--border); }
.btn.danger:hover { background: var(--danger-50); border-color: var(--danger-50); }
.btn.success { background: var(--ok); color: white; border-color: var(--ok); }
.btn.success:hover { filter: brightness(.95); background: var(--ok); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn.xs { padding: 3px 8px; font-size: 11px; }
.btn.icon { padding: 8px; }

/* ────── Chips ────── */
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 500;
  background: var(--panel-2); color: var(--text-2);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.chip.accent  { background: var(--accent-50); color: var(--accent); border-color: var(--accent-100); }
.chip.ok      { background: var(--ok-50);    color: var(--ok);     border-color: transparent; }
.chip.warn    { background: var(--warn-50);  color: var(--warn);   border-color: transparent; }
.chip.danger  { background: var(--danger-50); color: var(--danger); border-color: transparent; }

/* ────── Inputs ────── */
.input, .textarea, .select {
  width: 100%; padding: 8px 12px;
  font-size: 13px; color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-50);
}
.textarea { resize: vertical; min-height: 80px; line-height: 1.5; }
.select { appearance: none; padding-right: 32px; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b909b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>"); background-repeat: no-repeat; background-position: right 10px center; }

.label-text { font-size: 11px; color: var(--muted); font-weight: 500; }
.h1 { font-size: 22px; font-weight: 700; letter-spacing: -.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.h2 { font-size: 15px; font-weight: 600; }
.h3 { font-size: 13px; font-weight: 600; }

/* ────── Layout ────── */
.app { display: flex; height: 100vh; min-width: 1280px; overflow: hidden; }
.app > main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-header { padding: 16px 28px 16px 14px; display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.app-content { flex: 1; overflow: auto; padding: 0 28px 28px 14px; min-height: 0; }

/* ────── Sidebar ────── */
.sidebar { width: 200px; flex-shrink: 0; background: var(--bg); display: flex; flex-direction: column; padding: 16px 12px; overflow: hidden; }
.sidebar-logo { display: flex; align-items: center; gap: 8px; padding: 4px 8px 18px; flex-wrap: nowrap; white-space: nowrap; }
.sidebar-logo-text { font-weight: 700; font-size: 14px; letter-spacing: -.02em; white-space: nowrap; }
.sidebar-group { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 6px; display: flex; flex-direction: column; gap: 2px; box-shadow: var(--shadow); }
.sidebar-divider { font-size: 11px; color: var(--muted); font-weight: 500; padding: 18px 8px 8px; }
.sidebar-scroll { flex: 1; min-height: 0; overflow-y: scroll; overflow-x: hidden; display: flex; flex-direction: column; margin: 0 -4px; padding: 0 4px; scrollbar-gutter: stable; }
.sidebar-scroll::-webkit-scrollbar { width: 6px; }
.sidebar-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.sidebar-scroll::-webkit-scrollbar-track { background: transparent; }

.nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; font-size: 12px;
  color: var(--text-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  user-select: none;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item > span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.nav-item.indent { font-size: 11px; gap: 7px; }
.nav-item.indent > span { letter-spacing: -0.02em; }
.nav-item.active { background: var(--accent-50); color: var(--accent); font-weight: 600; }
.nav-item .count {
  margin-left: auto; font-size: 10px; padding: 1px 6px; border-radius: 999px;
  background: var(--border); color: var(--text-2); font-weight: 600; font-variant-numeric: tabular-nums;
}
.nav-item.active .count { background: var(--accent-100); color: var(--accent); }

.user-block {
  margin-top: 12px; padding: 10px; border: 1px solid var(--border);
  background: var(--panel); border-radius: var(--radius-lg);
  display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow);
}

/* ────── Avatar ────── */
.avatar {
  width: 28px; height: 28px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 600; flex-shrink: 0; color: white;
}

/* ────── Divider ────── */
.divider { height: 1px; background: var(--border-2); margin: 12px 0; }

/* ────── Progress bar ────── */
.bar { height: 6px; border-radius: 999px; background: var(--border-2); overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: inherit; transition: width var(--transition); }

/* ────── Tabs ────── */
.tabs { display: inline-flex; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 2px; box-shadow: var(--shadow); }
.tab { padding: 6px 12px; font-size: 12px; font-weight: 500; color: var(--text-2); border-radius: 5px; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.tab:hover { background: var(--panel-2); }
.tab.active { background: var(--accent-50); color: var(--accent); font-weight: 600; }

/* 付箋風タブ (paper tabs) */
.tabs.paper { background: transparent; border: none; box-shadow: none; padding: 0; gap: 6px; align-items: flex-end; }
.tabs.paper .tab {
  position: relative;
  padding: 8px 16px; font-size: 12.5px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  box-shadow: 0 -1px 2px rgba(0,0,0,0.03);
  transform: rotate(-0.6deg);
  transition: transform var(--transition), background var(--transition), color var(--transition);
}
.tabs.paper .tab:nth-child(even) { transform: rotate(0.7deg); }
.tabs.paper .tab:hover { background: var(--panel-2); transform: translateY(-2px) rotate(0deg); }
.tabs.paper .tab.active {
  background: var(--accent-50);
  color: var(--accent);
  border-color: var(--accent-100);
  font-weight: 700;
  transform: translateY(-3px) rotate(0deg);
  box-shadow: 0 3px 8px rgba(0,0,0,0.08);
}

/* ────── Modal ────── */
.modal-bg {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(20, 22, 28, 0.35);
  backdrop-filter: blur(2px);
  display: flex; align-items: center; justify-content: center;
  animation: fadeIn 160ms;
}
.modal {
  background: var(--panel); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-3); max-height: 90vh;
  display: flex; flex-direction: column; overflow: hidden;
  animation: scaleIn 200ms cubic-bezier(.2,.8,.3,1);
}
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border-2); display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.modal-body { padding: 20px; overflow: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border-2); display: flex; gap: 8px; justify-content: flex-end; flex-shrink: 0; }

/* ────── Drawer ────── */
.drawer-bg {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(20, 22, 28, 0.25);
  animation: fadeIn 160ms;
}
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 91;
  width: 380px; background: var(--panel);
  box-shadow: var(--shadow-3);
  display: flex; flex-direction: column;
  animation: slideInR 220ms cubic-bezier(.2,.8,.3,1);
}

@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes scaleIn { from { opacity: 0; transform: scale(.96) translateY(8px) } to { opacity: 1; transform: scale(1) translateY(0) } }
@keyframes slideInR { from { transform: translateX(20px); opacity: 0 } to { transform: translateX(0); opacity: 1 } }
@keyframes pop { 0% { transform: scale(.9); opacity: 0 } 100% { transform: scale(1); opacity: 1 } }

/* ────── Toast ────── */
.toast-stack { position: fixed; top: 24px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { background: var(--text); color: white; padding: 10px 16px; border-radius: var(--radius); font-size: 13px; box-shadow: var(--shadow-3); animation: pop 220ms cubic-bezier(.2,.8,.3,1); display: flex; align-items: center; gap: 8px; }
.toast.ok { background: var(--ok); }
.toast.danger { background: var(--danger); }

/* ────── Calendar ────── */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal-head { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-bottom: 6px; font-size: 11px; color: var(--muted); }
.cal-head > div { padding: 4px 0; text-align: center; font-weight: 500; }
.cal-cell {
  aspect-ratio: 1 / 1; background: var(--panel); border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  padding: 6px 8px; display: flex; flex-direction: column; gap: 2px;
  cursor: pointer; transition: border-color var(--transition), background var(--transition);
  position: relative; overflow: hidden;
}
.cal-cell:hover { border-color: var(--accent); background: var(--panel-2); }
.cal-cell.dim { background: var(--panel-2); border-color: var(--border-2); cursor: default; }
.cal-cell.today { box-shadow: inset 0 0 0 2px var(--accent); }
.cal-cell.weekend .cal-day { color: var(--muted); }
.cal-cell.sunday .cal-day { color: var(--danger); }
.cal-cell.saturday .cal-day { color: var(--accent); }
.cal-day { font-size: 12px; font-weight: 500; font-variant-numeric: tabular-nums; }

/* ────── Kanban / TODO ────── */
.board {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px; height: 100%; min-height: 0;
}
.col {
  background: var(--panel-2); border: 1px solid var(--border-2);
  border-radius: var(--radius-lg); padding: 10px;
  display: flex; flex-direction: column; min-height: 0;
  transition: background var(--transition), border-color var(--transition);
}
.col.drop-target { background: var(--accent-50); border-color: var(--accent); border-style: dashed; }
.col-head { display: flex; align-items: center; gap: 8px; padding: 4px 6px 10px; }
.col-body { display: flex; flex-direction: column; gap: 8px; overflow: auto; flex: 1; min-height: 0; padding-right: 2px; }

.todo-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px; display: flex; flex-direction: column; gap: 8px;
  box-shadow: var(--shadow);
  cursor: grab; user-select: none;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.todo-card:hover { box-shadow: var(--shadow-2); border-color: #dadde2; }
.todo-card:active { cursor: grabbing; }
.todo-card.dragging { opacity: 0.4; transform: rotate(-2deg); }

/* ────── Spinner ────── */
.spinner { width: 14px; height: 14px; border-radius: 999px; border: 2px solid rgba(255,255,255,.4); border-top-color: white; animation: spin 700ms linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ────── Table ────── */
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl thead th { text-align: left; padding: 10px 12px; font-size: 11px; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--border); background: var(--panel-2); }
.tbl tbody td { padding: 12px; border-bottom: 1px solid var(--border-2); }
.tbl tbody tr:hover { background: var(--panel-2); }

/* ────── Toggle ────── */
.toggle { position: relative; width: 36px; height: 20px; background: var(--border); border-radius: 999px; cursor: pointer; transition: background var(--transition); flex-shrink: 0; }
.toggle::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; background: white; border-radius: 999px; transition: transform var(--transition); box-shadow: 0 1px 2px rgba(0,0,0,.15); }
.toggle.on { background: var(--accent); }
.toggle.on::after { transform: translateX(16px); }

/* ────── Misc ────── */
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 999px; }

/* ────── Custom range slider for hours (project time) ────── */
.hour-slider {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
}
.hour-slider::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(to right,
    var(--slider-color, var(--accent)) 0%,
    var(--slider-color, var(--accent)) var(--slider-pct, 0%),
    var(--border) var(--slider-pct, 0%),
    var(--border) 100%);
}
.hour-slider::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: var(--border);
}
.hour-slider::-moz-range-progress {
  height: 6px;
  border-radius: 999px;
  background: var(--slider-color, var(--accent));
}
.hour-slider::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: white;
  border: 2px solid var(--slider-color, var(--accent));
  border-radius: 999px;
  cursor: grab;
  margin-top: -6px;
  box-shadow: 0 1px 3px rgba(0,0,0,.18);
  transition: transform 100ms ease;
}
.hour-slider::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.15); }
.hour-slider::-moz-range-thumb {
  width: 18px; height: 18px;
  background: white;
  border: 2px solid var(--slider-color, var(--accent));
  border-radius: 999px;
  cursor: grab;
  box-shadow: 0 1px 3px rgba(0,0,0,.18);
}
.hour-slider:focus { outline: none; }
.hour-slider:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--slider-color, var(--accent)) 25%, transparent);
}
.skeleton { background: linear-gradient(90deg, var(--border-2), var(--panel-2), var(--border-2)); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: 4px; }
@keyframes shimmer { 0% { background-position: 200% 0 } 100% { background-position: -200% 0 } }

.scroll-y { overflow-y: auto; }
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { scrollbar-width: none; }

/* Print */
@media (max-width: 1280px) { .app { min-width: 1280px; } html, body { overflow-x: auto; } }