:root {
    --green: #4a8d7c;
    --green-dark: #3a7264;
    --green-light: #e7f1ee;
    --border: #d9dee1;
    --text: #333;
    --muted: #888;
    --bg: #f4f6f7;
    --danger: #c0392b;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
    color: var(--text);
    background: var(--bg);
    font-size: 14px;
    line-height: 1.6;
}

a { color: var(--green-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- topbar ---- */
.topbar { background: #fff; border-bottom: 2px solid var(--green); }
.topbar-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 16px;
    display: flex; align-items: center; gap: 24px; height: 56px;
}
.brand { font-weight: bold; font-size: 18px; color: var(--green-dark); }
.mainnav { display: flex; gap: 18px; flex: 1; }
.mainnav a { color: var(--text); padding: 4px 0; }
.mainnav a:hover { color: var(--green-dark); text-decoration: none; border-bottom: 2px solid var(--green); }
.userbox { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.logout { color: var(--danger); }

/* ---- layout ---- */
.container { max-width: 1200px; margin: 24px auto; padding: 0 16px; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.page-head h1 { font-size: 20px; margin: 0; }

/* ---- alerts ---- */
.alert { padding: 10px 14px; border-radius: 4px; margin-bottom: 16px; }
.alert ul { margin: 0; padding-left: 18px; }
.alert-success { background: #e7f6ef; border: 1px solid #5bbd8f; color: #1f7a52; }
.alert-error { background: #fdecea; border: 1px solid #e6a39b; color: var(--danger); }

/* ---- card ---- */
.card { background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 20px; margin-bottom: 20px; }

/* ---- buttons ---- */
.btn {
    display: inline-block; padding: 7px 16px; border-radius: 4px; border: 1px solid var(--green);
    background: var(--green); color: #fff; cursor: pointer; font-size: 14px; text-decoration: none;
}
.btn:hover { background: var(--green-dark); text-decoration: none; }
.btn-sm { padding: 3px 10px; font-size: 13px; }
.btn-outline { background: #fff; color: var(--green-dark); }
.btn-outline:hover { background: var(--green-light); }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #a93226; }
.btn-muted { background: #95a5a6; border-color: #95a5a6; }

/* ---- tables ---- */
table.list { width: 100%; border-collapse: collapse; background: #fff; }
table.list th, table.list td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
table.list th { background: var(--green-light); font-weight: 600; }
table.list tr:hover td { background: #fafbfb; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.muted { color: var(--muted); }

/* ---- forms ---- */
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-weight: 600; margin-bottom: 4px; }
.form-row .required { color: var(--danger); font-size: 12px; margin-left: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], select, textarea {
    width: 100%; padding: 7px 9px; border: 1px solid var(--border); border-radius: 4px;
    font-size: 14px; font-family: inherit;
}
textarea { resize: vertical; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-actions { margin-top: 20px; display: flex; gap: 10px; }

/* ---- status badge ---- */
.badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; }
.badge-gray { background: #ecf0f1; color: #7f8c8d; }
.badge-blue { background: #eaf2fb; color: #2e6da4; }
.badge-green { background: #e7f6ef; color: #1f7a52; }
.badge-orange { background: #fdf0e3; color: #d35400; }
.badge-red { background: #fdecea; color: var(--danger); }

/* ---- login ---- */
.login-wrap { max-width: 360px; margin: 80px auto; }
.login-wrap h1 { text-align: center; color: var(--green-dark); }

/* ---- dashboard ---- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 18px; text-align: center; }
.stat .num { font-size: 28px; font-weight: bold; color: var(--green-dark); }
.stat .label { color: var(--muted); font-size: 13px; }

/* ---- document item editor ---- */
table.items { width: 100%; border-collapse: collapse; background: #fff; }
table.items th { background: var(--green-light); border: 1px solid var(--border); padding: 8px 6px; font-size: 13px; }
table.items td { border: 1px solid var(--border); padding: 2px; }
table.items td input { border: none; background: transparent; padding: 6px; }
table.items td input:focus { outline: 2px solid var(--green); background: #fff; }
table.items .col-amount input { text-align: right; }
.item-actions { white-space: nowrap; font-size: 12px; text-align: center; }
.item-actions a { cursor: pointer; margin: 0 3px; }
.totals { width: 320px; margin-left: auto; margin-top: 12px; }
.totals td { padding: 6px 10px; border: 1px solid var(--border); }
.totals td:last-child { text-align: right; }