:root{
  --brand:#461787; --brand-2:#6d28d9; --bg:#f6f7fb; --card:#fff; --ink:#1b1b2f; --muted:#6b7280;
  --line:#e6e7ef; --ok:#0f9d58; --warn:#d97706; --danger:#c0362c; --chip:#f1eefc;
  --received:#2563eb; --paid:#0f9d58; --returned:#9ca3af; --pending:#d97706;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,'Noto Sans JP',sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6}
a{color:var(--brand);text-decoration:none}
button{font-family:inherit;cursor:pointer}
.hidden{display:none!important}

/* layout */
.app{display:flex;min-height:100vh}
.side{width:230px;background:#1b1230;color:#e9e7f2;display:flex;flex-direction:column;padding:16px 0;position:sticky;top:0;height:100vh}
.side .logo{font-weight:700;font-size:16px;padding:6px 20px 16px;letter-spacing:.02em}
.side .logo small{display:block;color:#b7a9d6;font-weight:400;font-size:11px}
.nav a{display:block;color:#cfc7e4;padding:10px 20px;font-size:14px;border-left:3px solid transparent}
.nav a:hover{background:rgba(255,255,255,.05)}
.nav a.active{background:rgba(255,255,255,.08);border-left-color:var(--brand-2);color:#fff}
.side .foot{margin-top:auto;padding:12px 20px;font-size:12px;color:#a99fc6}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:12px;padding:12px 24px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top h1{font-size:16px;margin:0;flex:1}
.content{padding:24px;max-width:1200px;width:100%}

/* org switcher */
.orgsel{display:flex;align-items:center;gap:8px}
select,input,textarea{font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
textarea{width:100%;min-height:80px}
label{font-size:12px;color:var(--muted);display:block;margin-bottom:4px}

/* buttons */
.btn{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:9px 16px;font-size:14px}
.btn:hover{background:#3a1470}
.btn.sec{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.sec:hover{background:#f3f2f9}
.btn.sm{padding:6px 10px;font-size:13px}
.btn.danger{background:var(--danger)}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px}
.card h2{font-size:15px;margin:0 0 14px}
.grid{display:grid;gap:14px}
.stat{display:flex;flex-direction:column;gap:2px}
.stat .n{font-size:22px;font-weight:700}
.stat .l{font-size:12px;color:var(--muted)}

/* table */
table.list{width:100%;border-collapse:collapse;font-size:13px}
table.list th{text-align:left;color:var(--muted);font-weight:500;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
table.list td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle}
table.list tr:hover td{background:#faf9fe}
.amount{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}

/* status chips */
.chip{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.chip.received{background:#e5edff;color:var(--received)}
.chip.paid{background:#e3f6ea;color:var(--paid)}
.chip.returned{background:#eef0f2;color:#6b7280}
.chip.pending_ocr{background:#fdf0dc;color:var(--warn)}
.tag{display:inline-block;padding:1px 8px;border-radius:6px;background:var(--chip);color:var(--brand);font-size:11px}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;margin-bottom:14px}
.filters .f{display:flex;flex-direction:column}
.filters input,.filters select{min-width:120px}

/* toolbar */
.bulkbar{display:flex;gap:8px;align-items:center;padding:10px 14px;background:#efeafc;border-radius:10px;margin-bottom:12px}

/* dashboard bars */
.months{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px}
.mcol{min-width:120px;flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}
.mcol .mm{font-size:12px;color:var(--muted)}
.mcol .mv{font-size:19px;font-weight:700;margin:4px 0}
.bar{height:6px;background:#eee;border-radius:4px;overflow:hidden;margin-top:8px}
.bar>span{display:block;height:100%;background:var(--brand-2)}

/* login */
.login{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login .box{background:#fff;padding:40px;border-radius:18px;box-shadow:0 12px 50px rgba(0,0,0,.08);max-width:380px;width:90%;text-align:center}

/* invoice detail split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pdfpane{background:#333;border-radius:12px;min-height:600px;display:flex;align-items:center;justify-content:center;overflow:auto}
.pdfpane canvas{max-width:100%}
.frow{display:grid;grid-template-columns:120px 1fr;gap:8px;align-items:center;margin-bottom:8px}
.frow label{margin:0}

/* mail folders */
.mailwrap{display:grid;grid-template-columns:220px 1fr;gap:16px}
.folders a{display:block;padding:8px 12px;border-radius:8px;color:var(--ink)}
.folders a.active{background:var(--chip);color:var(--brand);font-weight:600}
.msg{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:8px}
.msg .subj{font-weight:600}
.msg .meta{font-size:12px;color:var(--muted)}

/* toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#1b1230;color:#fff;padding:12px 20px;border-radius:10px;z-index:100;box-shadow:0 8px 30px rgba(0,0,0,.2)}
.muted{color:var(--muted)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}
@media(max-width:820px){.split{grid-template-columns:1fr}.mailwrap{grid-template-columns:1fr}.side{width:64px}.side .logo small,.nav a span{display:none}}