:root {
    --bg: #f7f8fa;
    --card: #ffffff;
    --border: #e3e6eb;
    --text: #1f2430;
    --muted: #6b7280;
    --primary: #5b21b6;
    --primary-hover: #6d28d9;
    --success: #16a34a;
    --warn: #d97706;
    --danger: #dc2626;
    --info: #2563eb;
}
* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    font-size: 14px;
    line-height: 1.45;
}
body.centered {
    display: flex; align-items: center; justify-content: center; min-height: 100vh;
}
.container { max-width: 1280px; margin: 0 auto; padding: 1.5rem; }

/* Topnav */
.topnav {
    display: flex; align-items: center; gap: 1.5rem;
    padding: .6rem 1.5rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 10;
}
.topnav .brand { font-weight: 700; color: var(--primary); }
.topnav .links { display: flex; gap: 1rem; flex: 1; }
.topnav .links a { color: var(--text); text-decoration: none; padding: .25rem .5rem; border-radius: 4px; }
.topnav .links a:hover { background: #f1f2f5; }
.topnav .user { display: flex; align-items: center; gap: 1rem; color: var(--muted); }

/* Login */
.login-card {
    background: var(--card); padding: 2rem;
    border: 1px solid var(--border); border-radius: 8px;
    width: 320px; display: flex; flex-direction: column; gap: .75rem;
    box-shadow: 0 4px 24px rgba(0,0,0,.04);
}
.login-card h1 { margin: 0; color: var(--primary); }
.login-card label { display: flex; flex-direction: column; gap: .25rem; font-size: 13px; color: var(--muted); }

input, select, button {
    font: inherit;
    padding: .45rem .6rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: #fff;
}
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

button, .btn {
    cursor: pointer; background: #fff; border: 1px solid var(--border);
    padding: .45rem .9rem; border-radius: 4px; display: inline-block; text-decoration: none; color: inherit;
}
button:hover, .btn:hover { background: #f1f2f5; }
.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn.primary:hover { background: var(--primary-hover); }
.btn.small { padding: .25rem .55rem; font-size: 12px; }
.btn-link { background: none; border: none; color: var(--muted); cursor: pointer; padding: 0; }
.btn-link:hover { color: var(--text); background: none; }

h1 { font-size: 1.6rem; margin: .25rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 .75rem; }

.card {
    background: var(--card); border: 1px solid var(--border); border-radius: 8px;
    padding: 1rem 1.25rem; margin-bottom: 1rem;
}
.muted { color: var(--muted); }
.error {
    background: #fee2e2; color: #991b1b; border: 1px solid #fecaca;
    padding: .5rem .75rem; border-radius: 4px; margin: .5rem 0;
}
.alert {
    background: #fef9c3; color: #854d0e; border: 1px solid #fde68a;
    padding: .5rem .75rem; border-radius: 4px; margin: .5rem 0;
}

.stats { display: flex; gap: 1rem; flex-wrap: wrap; }
.stats div { background: #fff; border: 1px solid var(--border); padding: .6rem .9rem; border-radius: 6px; }
.stats div b { display: block; font-size: 1.3rem; }
.stats.big div { min-width: 140px; }
.stats.big div span { color: var(--muted); font-size: 12px; }

.grid { display: flex; gap: .75rem; margin: .5rem 0 1rem; flex-wrap: wrap; }

.upload { display: flex; align-items: center; gap: .75rem; }

table.data {
    width: 100%; border-collapse: collapse; background: #fff;
    border: 1px solid var(--border); border-radius: 6px; overflow: hidden;
}
table.data th, table.data td {
    padding: .45rem .65rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top;
}
table.data thead th { background: #f3f4f6; font-weight: 600; }
table.data tr:last-child td { border-bottom: none; }
table.data tr.row-rejected, table.data tr.row-mismatch, table.data tr.row-failed { background: #fef2f2; }
table.data tr.row-verified, table.data tr.row-confirmed { background: #f0fdf4; }

.badge {
    display: inline-block; padding: .15rem .55rem; border-radius: 10px; font-size: 12px;
    background: #e5e7eb; color: #374151; font-weight: 500;
}
.badge.pending { background: #e5e7eb; }
.badge.validated, .badge.submitted, .badge.submitting, .badge.verifying { background: #dbeafe; color: #1d4ed8; }
.badge.completed, .badge.verified, .badge.confirmed { background: #dcfce7; color: #166534; }
.badge.partial { background: #fef3c7; color: #92400e; }
.badge.failed, .badge.rejected, .badge.mismatch { background: #fee2e2; color: #991b1b; }

.tag { display: inline-block; padding: .1rem .4rem; background: #eef2ff; color: #4338ca; border-radius: 4px; font-size: 12px; }

.form-grid { display: grid; grid-template-columns: repeat(4, 1fr) auto; gap: .5rem; align-items: end; }
.form-grid label { display: flex; flex-direction: column; gap: .15rem; font-size: 13px; color: var(--muted); }

.filter-bar { display: flex; gap: .5rem; margin-bottom: .75rem; align-items: center; }
.bulk-bar { display: flex; gap: .5rem; align-items: center; padding: .5rem; background: #fff; border: 1px solid var(--border); border-radius: 4px; margin-bottom: .5rem; }
.pager { margin: 1rem 0; display: flex; gap: .5rem; }
.pager a, .pager b { padding: .25rem .5rem; border: 1px solid var(--border); border-radius: 4px; text-decoration: none; }

.ellipsis { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.payload { max-width: 400px; max-height: 100px; overflow: auto; font-size: 11px; margin: 0; white-space: pre-wrap; }
code { background: #f3f4f6; padding: 1px 4px; border-radius: 3px; font-size: 12px; }