:root{
  --bg: #0b1020;
  --panel: #111735;
  --ink: #e9edf7;
  --muted: #a9b1c7;
  --primary: #6aa3ff;
  --accent: #7ef0d4;
  --danger: #ff6b81;
  --weekend-sat: #6aa3ff;
  --weekend-sun: #ff5a5a;
  --today: #232f62;
  --ring: 0 0 0 3px rgba(106,163,255,.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font: 15px/1.6 system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 600px at 20% -10%, #1b2350 0%, #0b1020 55%) fixed;
}

.app-header, .app-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; gap: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.0));
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.app-footer{ border-top: 1px solid rgba(255,255,255,.06); border-bottom: none; justify-content: center; }

.logo{ margin-right: .25em }
.controls{ display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.select, .input{
  background: #0f1532; color: var(--ink);
  border: 1px solid rgba(255,255,255,.08); border-radius: 10px;
  padding: 9px 12px; outline: none; min-width: 120px;
}
.select:focus, .input:focus{ box-shadow: var(--ring); border-color: rgba(106,163,255,.55) }

.btn{
  appearance: none; border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, #1a2351, #121a3b);
  color: var(--ink); border-radius: 12px; padding: 8px 12px; cursor: pointer;
  transition: transform .06s ease, filter .2s ease, box-shadow .2s ease;
}
.btn:hover{ filter: brightness(1.12) contrast(1.05) }
.btn:active{ transform: translateY(1px) }
.btn.ghost{ background: #0f1532 }
.btn.wfull{ width: 100% }

.container{
  display: grid; gap: 18px; padding: 18px; margin-inline: auto; max-width: 1100px;
  grid-template-columns: 2fr 1fr;
}
@media (max-width: 920px){ .container{ grid-template-columns: 1fr; } }

.panel{
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 18px; overflow: clip;
  box-shadow: 0 20px 40px rgba(0,0,0,.25);
}
.panel-head{
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.0));
}
.panel-head.tight{ padding: 10px 14px }
.panel-sub{ border-top: 1px solid rgba(255,255,255,.06); }

.month-label{ margin: 0; font-size: 20px; font-weight: 700; letter-spacing: .03em; }
.legend{ display: flex; gap: 14px; color: var(--muted); font-size: 12px; }
.dot{ display: inline-block; width: .8em; height: .8em; border-radius: 999px; margin-right: .35em; background: var(--muted) }
.dot.holiday{ background: var(--weekend-sun) }
.dot.event{ background: var(--accent) }

.calendar{ padding: 12px 14px 18px 14px; }
.week-head{
  display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 6px; font-weight: 700; color: var(--muted); text-align: center;
}
.grid-wrap{ position: relative; }
.grid{
  margin-top: 8px;
  display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}
.overlay{
  position: absolute;
  inset: 0;
  pointer-events: none; /* クリックを下のセルに通す */
}

.cell{
  position: relative;
  background: #0f1532; border: 1px solid rgba(255,255,255,.05);
  border-radius: 14px; min-height: 92px; padding: 10px;
  display: flex; flex-direction: column; gap: 6px;
  transition: box-shadow .2s ease, transform .05s ease;
}
.cell:hover{ box-shadow: 0 0 0 2px rgba(126,240,212,.25) inset; transform: translateY(-1px); }
.date{
  font-weight: 700; line-height: 1; display: inline-flex; align-items: center; gap: 6px;
}
.badge{
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted);
}
.badge .pill{ width: 8px; height: 8px; border-radius: 999px; background: var(--accent) }

.is-today{ background: var(--today); border-color: rgba(126,240,212,.25); }
.is-sun .date{ color: var(--weekend-sun) }
.is-sat .date{ color: var(--weekend-sat) }
.is-holiday .date{ color: var(--weekend-sun) }

.ev{
  position: relative; padding: 6px 8px; border-radius: 10px; font-size: 12px;
  background: rgba(126,240,212,.12); border: 1px solid rgba(126,240,212,.35);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.ev.holiday{ background: rgba(255,90,90,.10); border-color: rgba(255,90,90,.35); }

.tooltip{
  position: absolute; inset: auto 10px 10px 10px; z-index: 5;
  background: #0a0f28; border: 1px solid rgba(255,255,255,.08);
  padding: 8px 10px; font-size: 12px; border-radius: 12px; display: none;
  box-shadow: 0 10px 24px rgba(0,0,0,.35);
}
.cell:hover .tooltip{ display: block; }

/* 横断バー */
.span-bar{
  align-self: end;
  height: 26px;
  margin: 0 6px 8px 6px;
  border-radius: 10px;
  background: rgba(126,240,212,.18);
  border: 1px solid rgba(126,240,212,.45);
  box-shadow: 0 10px 20px rgba(0,0,0,.25);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 12px;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.span-bar.holiday{
  background: rgba(255,90,90,.14);
  border-color: rgba(255,90,90,.45);
}

.loader-block{ padding: 14px; display: grid; gap: 12px; }
.row{ display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }
@media (max-width: 520px){ .row{ grid-template-columns: 1fr; } }
.file input{ display: none; }
.hint{ padding: 10px 14px; color: var(--muted); }
.toggle{ display: flex; gap: 8px; align-items: center; margin-top: 8px; }

.event-list{ list-style: none; margin: 0; padding: 8px 12px 16px 12px; display: grid; gap: 6px; }
.event-list li{
  display: grid; grid-template-columns: 90px 1fr; gap: 10px; align-items: baseline;
  background: #0f1532; border: 1px solid rgba(255,255,255,.05); border-radius: 12px; padding: 8px 10px;
}
.event-list time{ color: var(--muted); font-variant-numeric: tabular-nums; }
.event-list .tag{ color: var(--weekend-sun) }
.sr-only{ position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }


/* ICSソース別カラー（赤・緑・青） */
.ev.src-0, .span-bar.src-0 { background: rgba(255,90,90,.12); border-color: rgba(255,90,90,.45); }
.ev.src-1, .span-bar.src-1 { background: rgba( 80,200,120,.12); border-color: rgba( 80,200,120,.45); }
.ev.src-2, .span-bar.src-2 { background: rgba( 90,160,255,.12); border-color: rgba( 90,160,255,.45); }