:root{
  --ink:#17202b;
  --ink-2:#4a5666;
  --paper:#eef1f5;
  --card:#ffffff;
  --line:#d7dde6;
  --ai:#2a4d7e;          /* 藍 */
  --ai-dark:#1d3a63;
  --moss:#0f7a5f;        /* 出勤・受理 */
  --clay:#b4482f;        /* 却下・注意 */
  --amber:#a8790f;       /* 申請中 */
  --r:10px;
  --shadow:0 1px 2px rgba(23,32,43,.08), 0 8px 24px rgba(23,32,43,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic",Meiryo,system-ui,sans-serif;
  font-size:15px; line-height:1.7;
  -webkit-text-size-adjust:100%;
}
a{color:var(--ai)}
h1{font-size:1.35rem;margin:0 0 .2em;letter-spacing:.04em}
h2{font-size:1.05rem;margin:1.6em 0 .5em;letter-spacing:.04em;
   border-left:4px solid var(--ai);padding-left:.6em}
h3{font-size:.95rem;margin:1.2em 0 .4em}
.lead{color:var(--ink-2);margin:0 0 1.4em;font-size:.9rem}

/* --- ヘッダ --- */
.topbar{position:sticky;top:0;z-index:20;background:var(--ink);color:#fff}
.topbar-in{max-width:1040px;margin:0 auto;padding:.55rem 1rem;display:flex;align-items:center;gap:1rem}
.brand{color:#fff;text-decoration:none;font-weight:700;letter-spacing:.12em;display:flex;align-items:center;gap:.5rem}
.brand-mark{display:grid;place-items:center;width:1.7rem;height:1.7rem;border:1px solid #6b7a8d;
  border-radius:4px;font-size:.85rem;letter-spacing:0}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:.8rem}
.whoami{font-size:.78rem;color:#b9c4d1}
.btn-out{background:transparent;border:1px solid #6b7a8d;color:#fff;padding:.25rem .8rem;font-size:.8rem}

/* --- ナビ --- */
.nav{background:#22303f;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch;
     position:sticky;top:2.9rem;z-index:19}
.nav::-webkit-scrollbar{display:none}
.nav-item{display:inline-block;color:#c3cede;text-decoration:none;padding:.6rem .95rem;
  font-size:.85rem;border-bottom:3px solid transparent}
.nav-item.is-active{color:#fff;border-bottom-color:#7fb0e8;background:rgba(255,255,255,.06)}
.badge{display:inline-block;margin-left:.35em;min-width:1.4em;padding:0 .35em;border-radius:1em;
  background:var(--clay);color:#fff;font-size:.7rem;text-align:center;line-height:1.5em}

.wrap{max-width:1040px;margin:0 auto;padding:1.2rem 1rem 4rem}

/* --- カード --- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:1rem 1.1rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.card-tight{padding:.7rem .9rem}
.grid{display:grid;gap:1rem}
@media(min-width:760px){ .grid-2{grid-template-columns:1fr 1fr} .grid-3{grid-template-columns:repeat(3,1fr)} }

/* --- 数値表示 --- */
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:.8rem 1rem}
.stat b{display:block;font-size:1.5rem;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.stat span{font-size:.75rem;color:var(--ink-2)}

/* --- フォーム --- */
label{display:block;font-size:.82rem;color:var(--ink-2);margin:.7rem 0 .2rem}
input[type=text],input[type=password],input[type=date],input[type=time],input[type=email],
input[type=number],select,textarea{
  width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:6px;
  background:#fff;font-family:inherit;font-size:1rem;color:var(--ink)}
textarea{min-height:6em;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--ai);outline-offset:1px;border-color:var(--ai)}
.row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:flex-end}
.row>*{flex:1 1 140px}

.btn{display:inline-block;background:var(--ai);color:#fff;border:0;border-radius:6px;
  padding:.55rem 1.2rem;font-size:.9rem;font-family:inherit;cursor:pointer;text-decoration:none;
  text-align:center}
.btn:hover{background:var(--ai-dark)}
.btn-sub{background:#fff;color:var(--ai);border:1px solid var(--ai)}
.btn-sub:hover{background:#eaf0f8}
.btn-ok{background:var(--moss)}
.btn-ng{background:var(--clay)}
.btn-sm{padding:.3rem .7rem;font-size:.78rem}

.flash{border-radius:6px;padding:.6rem .9rem;margin:0 0 1rem;font-size:.88rem}
.flash-ok{background:#e4f3ee;border:1px solid #a9d6c7;color:#0b5a45}
.flash-ng{background:#fbe9e5;border:1px solid #e5bbb0;color:#8c3520}

/* --- 表 --- */
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
table{border-collapse:collapse;width:100%;font-size:.86rem}
th,td{padding:.5rem .7rem;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{background:#f6f8fa;font-weight:600;color:var(--ink-2);font-size:.78rem;letter-spacing:.04em}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tbody tr:hover{background:#f8fafc}
th a{color:var(--ink-2);text-decoration:none}
th a:hover{text-decoration:underline}

.tag{display:inline-block;padding:.1em .6em;border-radius:1em;font-size:.75rem;border:1px solid}
.tag-pending{color:var(--amber);border-color:#e0c88a;background:#fdf6e6}
.tag-approved{color:var(--moss);border-color:#a9d6c7;background:#e9f5f1}
.tag-rejected{color:var(--clay);border-color:#e5bbb0;background:#fbeae6}

/* --- 受信トレイ --- */
.inbox{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.mail{display:block;padding:.75rem 1rem;border-bottom:1px solid var(--line);text-decoration:none;color:inherit}
.mail:hover{background:#f6f9fc}
.mail-unread{background:#f4f8fd}
.mail-head{display:flex;gap:.6rem;align-items:baseline;font-size:.78rem;color:var(--ink-2)}
.mail-title{font-weight:600;color:var(--ink);font-size:.95rem;margin:.1em 0}
.mail-unread .mail-title::before{content:"●";color:var(--ai);font-size:.6em;vertical-align:.25em;margin-right:.4em}
.mail-excerpt{font-size:.82rem;color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail-time{margin-left:auto;font-variant-numeric:tabular-nums}

/* --- チャット --- */
.chat-layout{display:grid;gap:1rem}
@media(min-width:820px){.chat-layout{grid-template-columns:260px 1fr;align-items:start}}
.thread-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.thread{display:block;padding:.6rem .9rem;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;font-size:.88rem}
.thread.is-active{background:#eaf0f8;border-left:3px solid var(--ai)}
.thread small{display:block;color:var(--ink-2);font-size:.75rem}
.msgs{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:1rem;max-height:52vh;overflow-y:auto}
.msg{margin-bottom:.9rem;max-width:80%}
.msg-me{margin-left:auto;text-align:right}
.msg-name{font-size:.72rem;color:var(--ink-2)}
.msg-body{display:inline-block;background:#f0f3f7;border-radius:12px;padding:.45rem .8rem;
  text-align:left;white-space:pre-wrap;word-break:break-word}
.msg-me .msg-body{background:#dfeaf7}

/* --- 進捗バー --- */
.bar{height:8px;background:#e3e8ee;border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--ai);border-radius:99px}
.bar-done>i{background:var(--moss)}

/* --- タイムカード（ログイン画面の主役） --- */
.punch{max-width:420px;margin:6vh auto;padding:0 1rem}
.punch-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);overflow:hidden}
.punch-top{background:var(--ink);color:#fff;padding:1rem 1.2rem}
.punch-top h1{font-size:1.05rem;letter-spacing:.2em;margin:0}
.punch-top p{margin:.2em 0 0;font-size:.75rem;color:#9fb0c2;letter-spacing:.1em}
.punch-clock{font-variant-numeric:tabular-nums;font-size:2.6rem;letter-spacing:.06em;
  text-align:center;padding:.6rem 0 .2rem;margin:0}
.punch-date{text-align:center;font-size:.8rem;color:var(--ink-2);margin:0 0 .4rem}
.punch-body{padding:1rem 1.2rem 1.3rem}
.punch-btn{width:100%;background:var(--moss);color:#fff;border:0;border-radius:8px;
  padding:.85rem;font-size:1.05rem;letter-spacing:.4em;text-indent:.4em;cursor:pointer;
  font-family:inherit;margin-top:1rem}
.punch-btn:hover{filter:brightness(.93)}
.punch-links{display:flex;gap:.6rem;margin-top:1rem}
.punch-links a{flex:1;text-align:center;font-size:.82rem;text-decoration:none;color:var(--ai);
  border:1px solid var(--line);border-radius:8px;padding:.55rem .3rem;background:#fff}
.punch-links a:hover{background:#eaf0f8}
.punch-note{font-size:.72rem;color:var(--ink-2);text-align:center;margin-top:1rem;line-height:1.6}

.muted{color:var(--ink-2);font-size:.82rem}
.right{text-align:right}
.mt{margin-top:1rem}
hr{border:0;border-top:1px solid var(--line);margin:1.2rem 0}
details summary{cursor:pointer;font-size:.88rem;color:var(--ai)}

@media (prefers-reduced-motion:no-preference){
  .card,.inbox,.table-wrap{animation:rise .25s ease-out both}
  @keyframes rise{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
}