:root{
  --bg: #0b1220;
  --card: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --line: rgba(148,163,184,.18);
  --primary: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
  --shadow: 0 12px 28px rgba(0,0,0,.35);
  --radius: 16px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Meiryo", sans-serif;
  background: radial-gradient(1200px 700px at 20% 0%, #111827 0%, var(--bg) 55%);
  color: var(--text);
}

a{ color:inherit; }

.topbar{
  position: sticky;
  top:0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(11,18,32,.78);
}
.topbar__inner{
  max-width: 980px;
  margin: 0 auto;
  padding: 12px 16px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
}
.brand{
  display:flex;
  align-items:baseline;
  gap: 12px;
}
.brand__mark{
  font-weight: 800;
  letter-spacing: .06em;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.03);
}
.brand__sub{
  font-size: 12px;
  color: var(--muted);
}

.container{
  max-width: 980px;
  margin: 16px auto 60px;
  padding: 0 16px;
  display: grid;
  gap: 14px;
}

.card{
  border: 1px solid var(--line);
  background: rgba(15,23,42,.72);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}
.card__head{
  margin-bottom: 12px;
}
.card__head h2{
  margin:0;
  font-size: 18px;
}
.card__head p{
  margin:6px 0 0;
}

.panel{
  border-top: 1px dashed var(--line);
  padding-top: 12px;
  margin-top: 12px;
}
.panel__head h3{
  margin:0;
  font-size: 15px;
}

.row{
  display:flex;
  align-items:center;
  gap: 10px;
}
.row--space{ justify-content: space-between; }
.row--end{ justify-content: flex-end; }

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.grid--2{
  grid-template-columns: 1fr;
}
@media (min-width: 720px){
  .grid{ grid-template-columns: 1fr 1fr; }
  .grid--2{ grid-template-columns: 1fr 1fr; }
}

.field{
  display:flex;
  flex-direction: column;
  gap: 6px;
}
.field__label{
  font-size: 12px;
  color: var(--muted);
}
.field__help{
  font-size: 12px;
  color: rgba(148,163,184,.85);
}
.req{
  font-size: 11px;
  color: rgba(34,197,94,.9);
  border: 1px solid rgba(34,197,94,.35);
  padding: 1px 6px;
  border-radius: 999px;
  margin-left: 6px;
}

.input, .select{
  width:100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,.22);
  background: rgba(2,6,23,.55);
  color: var(--text);
  outline: none;
}
.input:focus, .select:focus{
  border-color: rgba(34,197,94,.65);
  box-shadow: 0 0 0 3px rgba(34,197,94,.15);
}

.btn{
  border: 1px solid rgba(148,163,184,.22);
  background: rgba(255,255,255,.04);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  user-select: none;
}
.btn:active{ transform: translateY(1px); }
.btn--primary{
  border-color: rgba(34,197,94,.45);
  background: rgba(34,197,94,.15);
}
.btn--danger{
  border-color: rgba(239,68,68,.45);
  background: rgba(239,68,68,.12);
}
.btn--ghost{
  background: transparent;
}

.list{
  display:grid;
  gap: 10px;
}

.item{
  border: 1px solid rgba(148,163,184,.18);
  border-radius: 14px;
  padding: 12px;
  background: rgba(2,6,23,.35);
}
.item__title{
  font-weight: 700;
  margin:0 0 6px;
}
.item__meta{
  color: var(--muted);
  font-size: 13px;
}
.item__actions{
  margin-top: 10px;
  display:flex;
  gap: 10px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.muted{ color: var(--muted); }
.small{ font-size: 12px; }

.alert{
  margin-top: 10px;
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(148,163,184,.22);
  background: rgba(2,6,23,.35);
}
.alert--error{
  border-color: rgba(239,68,68,.35);
  background: rgba(239,68,68,.10);
  color: #fecaca;
}

.status{
  font-size: 14px;
  margin-top: 4px;
}

.hidden{ display:none !important; }

.stepper{
  margin-top: 10px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.stepper__item{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(2,6,23,.25);
  text-align:center;
  color: rgba(148,163,184,.9);
}
.stepper__item--active{
  border-color: rgba(34,197,94,.55);
  color: rgba(34,197,94,.95);
  background: rgba(34,197,94,.10);
}

.summary{
  padding: 12px;
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(2,6,23,.25);
  border-radius: 12px;
}

.slotGrid{
  margin-top: 12px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
@media (min-width: 720px){
  .slotGrid{ grid-template-columns: repeat(6, 1fr); }
}
.slot{
  padding: 10px 0;
  border-radius: 12px;
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(2,6,23,.25);
  text-align:center;
  cursor:pointer;
}
.slot--disabled{
  opacity: .45;
  cursor: not-allowed;
}
.slot--selected{
  border-color: rgba(34,197,94,.55);
  background: rgba(34,197,94,.10);
}

.confirmBox, .doneBox{
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(2,6,23,.25);
  border-radius: 14px;
  padding: 12px;
  display:grid;
  gap: 8px;
}

.footer{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px 24px;
}

.timeTableWrap{
  margin-top: 12px;
  overflow: auto;
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(2,6,23,.25);
}

.timeTable{
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 760px; /* PCで見やすく */
}

.timeTable th, .timeTable td{
  border-right: 1px solid rgba(148,163,184,.12);
  border-bottom: 1px solid rgba(148,163,184,.12);
  padding: 8px 10px;
  text-align: center;
  white-space: nowrap;
  font-size: 13px;
}

.timeTable thead th{
  position: sticky;
  top: 0;
  background: rgba(11,18,32,.92);
  z-index: 2;
  font-weight: 700;
}

.timeTable th:first-child, .timeTable td:first-child{
  position: sticky;
  left: 0;
  background: rgba(11,18,32,.92);
  z-index: 1;
  font-weight: 700;
}

.timeCell{
  cursor: pointer;
  border-radius: 10px;
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(255,255,255,.02);
}

.timeCell--ok{
  border-color: rgba(34,197,94,.45);
  background: rgba(34,197,94,.10);
}

.timeCell--ng{
  opacity: .45;
  cursor: not-allowed;
}

.timeCell--selected{
  outline: 2px solid rgba(34,197,94,.8);
  outline-offset: -2px;
}

.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,.18);
  font-weight: 800;
}

.badge--ok{ color: rgba(34,197,94,.95); border-color: rgba(34,197,94,.45); }
.badge--ng{ color: rgba(148,163,184,.85); }