:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --ink: #16181d;
  --sub: #6b7280;
  --line: #e5e7eb;
  --accent: #0f6fde;
  --miss: #d92d20;
  --ok: #12805c;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --card: #181b21; --ink: #eef0f3; --sub: #9aa1ad;
    --line: #2a2e36; --accent: #4c9bff; --miss: #ff6b5e; --ok: #3ccf91;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif;
  font-size: 16px; line-height: 1.5; -webkit-text-size-adjust: 100%;
}
a { color: var(--accent); text-decoration: none; }
.wrap { max-width: 640px; margin: 0 auto; padding: 0 16px 48px; }

/* ヘッダー */
.top {
  position: sticky; top: 0; z-index: 10; background: var(--bg);
  padding: 14px 16px 10px; max-width: 640px; margin: 0 auto;
  display: flex; align-items: center; gap: 12px;
}
.brand { font-weight: 800; font-size: 20px; letter-spacing: .02em; flex: 1; }
.brand small { font-weight: 600; color: var(--sub); font-size: 13px; margin-left: 6px; }
.iconbtn {
  display: inline-block; white-space: nowrap; text-decoration: none;
  border: 0; background: var(--card); color: var(--ink); border-radius: 999px;
  padding: 7px 12px; font-size: 13px; font-weight: 600; box-shadow: 0 0 0 1px var(--line) inset; cursor: pointer;
}

/* タブ（契約番号） */
.tabs { display: flex; gap: 8px; overflow-x: auto; padding: 4px 0 10px; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: 999px; background: var(--card); color: var(--ink);
  box-shadow: 0 0 0 1px var(--line) inset; font-size: 14px; font-weight: 600; white-space: nowrap;
}
.tab.on { background: var(--ink); color: var(--bg); box-shadow: none; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.badge {
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--miss); color: #fff;
  font-size: 12px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center;
}

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 2px 0 12px; }
.seg { display: inline-flex; background: var(--card); border-radius: 10px; padding: 3px; box-shadow: 0 0 0 1px var(--line) inset; }
.seg a { padding: 5px 12px; border-radius: 8px; font-size: 14px; color: var(--sub); font-weight: 600; }
.seg a.on { background: var(--ink); color: var(--bg); }
.updated { font-size: 12px; color: var(--sub); }

/* 履歴 */
.day { font-size: 13px; font-weight: 700; color: var(--sub); margin: 18px 4px 6px; }
.list { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: 0 0 0 1px var(--line) inset; }
.call { display: grid; grid-template-columns: 4px 1fr auto; gap: 0 12px; padding: 12px 14px 12px 0; border-top: 1px solid var(--line); }
.call:first-child { border-top: 0; }
.bar { border-radius: 0 3px 3px 0; }
.who { min-width: 0; }
.to { font-size: 13px; font-weight: 700; display: flex; align-items: center; gap: 6px; }
.to .lbl { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.num { font-size: 19px; font-weight: 700; letter-spacing: .01em; font-variant-numeric: tabular-nums; margin-top: 1px; display: inline-block; color: var(--ink); }
.num.anon { color: var(--sub); font-weight: 600; font-size: 17px; }
.meta { font-size: 13px; color: var(--sub); display: flex; gap: 8px; align-items: center; margin-top: 2px; }
.st-miss { color: var(--miss); font-weight: 700; }
.st-ok { color: var(--ok); font-weight: 600; }
.new { font-size: 11px; font-weight: 800; color: #fff; background: var(--miss); border-radius: 4px; padding: 0 5px; }
.call.missed .num { color: var(--miss); }
.act { display: flex; align-items: center; }
.copy {
  border: 0; background: var(--accent); color: #fff; font-weight: 700; font-size: 14px;
  padding: 9px 14px; border-radius: 10px; cursor: pointer; min-width: 74px;
}
.copy.done { background: var(--ok); }
.empty { text-align: center; color: var(--sub); padding: 48px 16px; }
.hint { font-size: 13px; color: var(--sub); margin: 14px 4px; }

/* フォーム */
.card { background: var(--card); border-radius: var(--radius); padding: 22px 18px; box-shadow: 0 0 0 1px var(--line) inset; margin-top: 12px; }
.login { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; }
.login h1 { font-size: 26px; margin: 0 0 4px; }
.login p { color: var(--sub); margin: 0 0 18px; }
label { display: block; font-size: 14px; font-weight: 700; margin: 12px 0 6px; }
input[type=tel], input[type=text] {
  width: 100%; font-size: 20px; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink); font-variant-numeric: tabular-nums;
}
input.code { letter-spacing: .35em; text-align: center; font-size: 26px; }
.primary {
  width: 100%; margin-top: 16px; border: 0; background: var(--accent); color: #fff;
  font-size: 17px; font-weight: 700; padding: 14px; border-radius: 12px; cursor: pointer;
}
.msg { padding: 10px 12px; border-radius: 10px; font-size: 14px; margin-bottom: 10px; }
.msg.err { background: color-mix(in srgb, var(--miss) 12%, transparent); color: var(--miss); }
.msg.info { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.foot { text-align: center; font-size: 12px; color: var(--sub); margin-top: 22px; }

.set { padding: 14px 0; border-top: 1px solid var(--line); }
.set:first-of-type { border-top: 0; padding-top: 0; }
.set .n { font-weight: 700; font-variant-numeric: tabular-nums; }
.colors { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.colors input { position: absolute; opacity: 0; pointer-events: none; }
.colors span { width: 30px; height: 30px; border-radius: 50%; display: block; box-shadow: 0 0 0 2px var(--card), 0 0 0 3px transparent; cursor: pointer; }
.colors input:checked + span { box-shadow: 0 0 0 2px var(--card), 0 0 0 4px var(--ink); }
.small { width: auto; padding: 9px 18px; font-size: 15px; margin-top: 12px; }

/* ===== 管理画面 ===== */
.top.wide, .wrap.wide { max-width: 1080px; }
.wrap.wide { padding-left: 24px; padding-right: 24px; }
.top.wide { padding-left: 24px; padding-right: 24px; }
.h2 { font-size: 16px; margin: 0 0 10px; }
.req { font-size: 11px; color: #fff; background: var(--miss); border-radius: 4px; padding: 0 5px; margin-left: 6px; font-weight: 700; vertical-align: 1px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 18px; }
.grid .full { grid-column: 1 / -1; display: flex; align-items: center; flex-wrap: wrap; gap: 6px 12px; margin-top: 4px; }
.grid .full .primary { margin-top: 12px; }
.grid input[type=tel], .grid input[type=text], .numedit input, .wide select, input[type=password] {
  width: 100%; font-size: 16px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink); font-family: inherit;
}
input[type=password] { font-size: 20px; padding: 12px 14px; }
.ro { padding: 10px 0; font-weight: 600; }
.hint.inline { margin: 12px 0 0; }
.search { display: flex; gap: 8px; margin: 20px 0 0; align-items: center; }
.search input { flex: 1; min-width: 0; font-size: 16px; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.search .iconbtn { padding: 10px 16px; }
.tablewrap { padding: 6px 0; overflow: hidden; }
.tablewrap .h2 { padding: 12px 18px 0; }
.count { font-size: 12px; color: var(--sub); padding: 8px 18px 2px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th { text-align: left; color: var(--sub); font-weight: 600; font-size: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl td { padding: 12px 14px; border-top: 1px solid var(--line); vertical-align: middle; }
.tbl tbody tr:first-child td { border-top: 0; }
.tbl tbody tr:hover td { background: color-mix(in srgb, var(--accent) 4%, transparent); }
.tbl .act-cell { text-align: right; width: 1%; }
.nowrap { white-space: nowrap; }
.sub { color: var(--sub); font-size: 13px; }
.numrow { display: flex; gap: 10px; align-items: flex-end; padding: 14px 0; border-top: 1px solid var(--line); }
.numrow:first-of-type { border-top: 0; padding-top: 0; }
.numform { flex: 1; min-width: 0; }
.numhead { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 8px; margin-bottom: 8px; font-variant-numeric: tabular-nums; font-size: 17px; }
.numedit { display: flex; gap: 8px; }
.numedit input { flex: 1; min-width: 0; }
.numedit select { width: 110px; flex: 0 0 auto; }
.numrow .iconbtn { padding: 10px 14px; }
.addnum { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.iconbtn.danger { color: var(--miss); }
.check { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; margin: 8px 14px 8px 0; }

/* スマホ：表をカード型に、入力欄は1列に */
@media (max-width: 720px) {
  .top.wide, .wrap.wide { padding-left: 16px; padding-right: 16px; }
  .grid { grid-template-columns: 1fr; }
  .tbl.cards thead { display: none; }
  .tbl.cards tr { display: block; padding: 12px 16px; border-top: 1px solid var(--line); }
  .tbl.cards tbody tr:first-child { border-top: 0; }
  .tbl.cards td { display: grid; grid-template-columns: auto 1fr; column-gap: 12px; align-items: baseline;
                  padding: 3px 0; border: 0; white-space: normal; text-align: right; }
  .tbl.cards td::before { content: attr(data-label); color: var(--sub); font-size: 12px; font-weight: 600;
                          grid-column: 1; grid-row: 1 / span 9; text-align: left; }
  .tbl.cards td > * { grid-column: 2; }
  .tbl.cards td.act-cell, .tbl.cards td.nolabel { display: block; width: auto; text-align: right; padding-top: 8px; }
  .tbl.cards td.nolabel { text-align: center; }
  .tbl.cards td.act-cell::before, .tbl.cards td.nolabel::before { content: none; }
  .tbl tbody tr:hover td { background: none; }
  .numrow { flex-wrap: wrap; }
  .numedit { flex-wrap: wrap; }
  .numedit input { flex: 1 1 100%; }
  .numedit select { flex: 1 1 auto; }
}