:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1f2430;
  --muted: #6b7280;
  --line: #e3e6ea;
  --crit: #d92d20;
  --warn: #e08600;
  --info: #2563eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1.2rem;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.topbar h1 { font-size: 1.1rem; margin: 0; }
.topbar .nav { margin-right: auto; display: flex; gap: 0.9rem; }
.topbar .nav a { color: var(--info); text-decoration: none; font-size: 0.9rem; }
.topbar .user { color: var(--muted); font-size: 0.85rem; }
.topbar .logout { color: var(--muted); font-size: 0.8rem; margin-left: 0.8rem; text-decoration: none; }
.topbar .logout:hover { color: var(--crit); }

/* ログイン画面 */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.6rem 1.8rem; width: 320px; max-width: 90vw;
  display: flex; flex-direction: column; gap: 0.7rem;
  box-shadow: 0 6px 24px rgba(0,0,0,0.06);
}
.login-card h1 { font-size: 1.15rem; margin: 0; }
.login-card .sub { color: var(--muted); font-size: 0.85rem; margin: 0 0 0.4rem; }
.login-card label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.82rem; color: var(--muted); }
.login-card input {
  font: inherit; font-size: 0.95rem; padding: 0.5rem 0.6rem;
  border: 1px solid var(--line); border-radius: 7px;
}
.login-card button {
  margin-top: 0.5rem; padding: 0.55rem; font-size: 0.95rem;
  background: var(--info); color: #fff; border: none; border-radius: 7px; cursor: pointer;
}
.login-card .login-error { color: var(--crit); font-size: 0.82rem; margin: 0; }

main { max-width: 820px; margin: 0 auto; padding: 1.2rem; }

.section-head {
  display: flex; align-items: baseline; gap: 0.6rem; margin-bottom: 0.8rem;
}
.section-head h2 { font-size: 1rem; margin: 0; }
.section-head .count { color: var(--muted); font-size: 0.85rem; }
.section-head .run { margin-left: auto; }
.section-head .more { margin-left: auto; font-size: 0.82rem; color: var(--info); text-decoration: none; }
.routines, .tools { margin-top: 1.4rem; }

button {
  font: inherit; font-size: 0.82rem; cursor: pointer;
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  border-radius: 6px; padding: 0.25rem 0.6rem;
}
button:hover { background: #f0f2f5; }
button:disabled { opacity: 0.45; cursor: default; }
button.resolve { border-color: var(--info); color: var(--info); }
button.danger { border-color: var(--crit); color: var(--crit); }
button.ghost { color: var(--muted); }

.meta .actions { display: flex; gap: 0.25rem; margin-top: 0.2rem; }

/* 期限マスタ画面 */
.hint { color: var(--muted); font-size: 0.85rem; margin: 0 0 1rem; }
.master-add, .master {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 0.8rem; margin-bottom: 0.8rem;
}
.master.inactive { opacity: 0.6; }
.master-add h3 { margin: 0 0 0.6rem; font-size: 0.95rem; }
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.4rem; margin-bottom: 0.5rem;
}
.grid input, .grid select {
  font: inherit; font-size: 0.85rem; padding: 0.3rem 0.4rem;
  border: 1px solid var(--line); border-radius: 6px; min-width: 0;
}
.master-list { list-style: none; margin: 0; padding: 0; }
.row-actions { display: flex; align-items: center; gap: 0.4rem; }
.row-actions .tag { color: var(--muted); font-size: 0.78rem; }

.items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }

.item {
  display: flex; align-items: flex-start; gap: 0.6rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--line);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
}
.item.sev-crit { border-left-color: var(--crit); }
.item.sev-warn { border-left-color: var(--warn); }
.item.sev-info { border-left-color: var(--info); }

.item .body { flex: 1 1 auto; }
.item .title { font-weight: 600; }
.item .title a { color: inherit; }
.item .detail { color: var(--muted); font-size: 0.85rem; margin-top: 0.15rem; }

.badge {
  font-size: 0.72rem; padding: 0.1rem 0.45rem; border-radius: 999px;
  background: #eef1f5; color: var(--muted); white-space: nowrap;
}

.meta { display: flex; flex-direction: column; align-items: flex-end; gap: 0.2rem; font-size: 0.78rem; }
.meta .due { color: var(--warn); }
.meta .status { color: var(--muted); }

.empty { color: var(--muted); background: var(--card); border: 1px dashed var(--line);
  border-radius: 8px; padding: 1.2rem; text-align: center; }