:root{
  --bg:#f7f7f8; --paper:#fff; --ink:#1c1e22; --muted:#737681; --line:#e6e6ea;
  --accent:#2c5a3b; --accent-deep:#1e3f29; --clay:#d27a4c; --danger:#c93b3b;
  --r:10px;
}
*{box-sizing:border-box}
html,body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,sans-serif;color:var(--ink);background:var(--bg)}
button{font:inherit;border:1px solid var(--line);background:var(--accent);color:#fff;padding:.55em 1em;border-radius:var(--r);cursor:pointer}
button:hover{background:var(--accent-deep)}
button.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
button.ghost:hover{background:#f1f1f4}
button.danger{background:var(--danger)}
input,select,textarea{font:inherit;padding:.55em .75em;border:1px solid var(--line);border-radius:var(--r);background:#fff;color:var(--ink);min-width:0}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in oklab,var(--accent) 35%,transparent);outline-offset:0}
label{display:flex;flex-direction:column;gap:.35em;font-size:13px;color:var(--muted)}
label input,label select,label textarea{color:var(--ink)}
textarea{min-height:80px;resize:vertical}
.hidden{display:none !important}
.muted{color:var(--muted);font-weight:400}
.err{color:var(--danger);min-height:1.3em;margin:.5em 0 0}

/* Login */
.login{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{background:var(--paper);padding:32px;border-radius:16px;border:1px solid var(--line);box-shadow:0 6px 28px rgba(0,0,0,.06);width:100%;max-width:380px;display:flex;flex-direction:column;gap:14px}
.login-card h1{margin:0;font-size:22px}

/* App shell */
.topbar{display:flex;align-items:center;gap:18px;padding:10px 20px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.brand{font-weight:700;font-size:16px}
#tabs{display:flex;gap:4px;margin-left:8px}
#tabs button{background:transparent;color:var(--muted);border:none;padding:.5em .9em;border-radius:8px}
#tabs button:hover{background:#f1f1f4;color:var(--ink)}
#tabs button.on{background:#e9efe9;color:var(--accent-deep)}
.user{margin-left:auto;display:flex;align-items:center;gap:10px}
main{padding:20px;max-width:1280px;margin:0 auto}
.row{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.row h2{margin:0;font-size:18px}
.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:1fr 1fr}
@media (max-width:900px){.grid.two{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px}
.card h2,.card h3{margin:0 0 12px;font-size:15.5px}
.tab{display:block}
.tab.hidden{display:none}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-weight:600;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
tbody tr:hover{background:#fafafb}
td .icon-btn{background:transparent;color:var(--muted);border:1px solid var(--line);padding:.25em .55em;border-radius:8px;font-size:12px}
td .icon-btn:hover{background:#f1f1f4;color:var(--ink)}
td.right,th.right{text-align:right}
.status-active{color:var(--accent-deep);font-weight:600}
.status-terminated{color:var(--danger)}
.status-open{color:#8a6011;font-weight:600}
.status-approved{color:var(--accent-deep);font-weight:600}

/* Filters */
.filters{display:flex;gap:10px;align-items:end;flex-wrap:wrap}
.filters label{flex-direction:row;align-items:center;gap:6px;font-size:13px}
.filters input{padding:.35em .55em}

/* Inline form */
.inline-form{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;align-items:center}
.inline-form select,.inline-form input{padding:.4em .6em;font-size:13.5px}
.inline-form button{padding:.45em .9em}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:grid;place-items:center;z-index:50;padding:24px}
.modal-card{background:#fff;border-radius:14px;padding:20px;max-width:520px;width:100%;max-height:90vh;overflow-y:auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid label:has(textarea){grid-column:1/-1}
.modal-actions{grid-column:1/-1;display:flex;justify-content:flex-end;gap:8px;margin-top:6px}

/* Period detail buttons row */
#periodDetail .row > div{display:flex;gap:8px;flex-wrap:wrap}

/* Toast */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#1c1e22;color:#fff;padding:.6em 1.2em;border-radius:10px;box-shadow:0 6px 24px rgba(0,0,0,.18);font-size:14px;z-index:100;animation:fadein .15s ease}
.toast.err{background:var(--danger)}
@keyframes fadein{from{opacity:0;transform:translate(-50%,8px)} to{opacity:1;transform:translate(-50%,0)}}