:root {
    --green: #174c3c;
    --green-dark: #10382c;
    --green-light: #eaf2ef;
    --ink: #1f2937;
    --muted: #66756f;
    --border: #cbd5d1;
    --surface: #ffffff;
    --background: #f5f7f6;
    --danger: #a12c2c;
    --warning: #fff1c2;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--ink);
    background: var(--background);
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--background); }
a { color: var(--green); }
.topbar { min-height: 82px; padding: 14px clamp(16px, 4vw, 42px); background: var(--green); color: white; display: flex; align-items: center; gap: 28px; }
.brand { color: white; text-decoration: none; display: flex; align-items: center; gap: 12px; min-width: 260px; }
.brand img { width: 42px; height: 42px; }
.brand span { display: flex; flex-direction: column; }
.brand strong { font-size: 1.25rem; }
.brand small { color: #cfe0da; margin-top: 2px; }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav a, .nav-link { border: 0; background: transparent; color: #e6f1ed; padding: 10px 11px; border-radius: 5px; text-decoration: none; font: inherit; cursor: pointer; white-space: nowrap; }
.main-nav a:hover, .nav-link:hover { background: rgba(255,255,255,.12); color: white; }
.main-nav form { margin: 0; }
.stage { color: #cfe0da; font-size: .78rem; font-weight: 700; letter-spacing: .08em; }
.nav-toggle { display: none; margin-left: auto; color: white; background: transparent; border: 1px solid rgba(255,255,255,.5); padding: 7px 10px; border-radius: 5px; font-size: 1.2rem; }
.page-shell { width: min(1260px, calc(100% - 32px)); margin: 26px auto 50px; }
.footer { color: var(--muted); text-align: center; padding: 18px; border-top: 1px solid var(--border); background: white; }
.page-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 18px; }
.page-header h1 { margin: 0 0 4px; font-size: 1.65rem; }
.page-header p, .muted { color: var(--muted); margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 20px 0 24px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 22px; box-shadow: 0 1px 2px rgba(10,45,35,.05); }
.card h2, .card h3 { margin-top: 0; }
.metric-label { color: var(--muted); font-weight: 700; font-size: .78rem; letter-spacing: .05em; }
.metric { color: var(--green); font-size: 2.1rem; font-weight: 650; margin-top: 8px; }
.btn { display: inline-block; border: 1px solid transparent; border-radius: 5px; padding: 9px 15px; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; text-align: center; }
.btn-primary { color: white; background: var(--green); border-color: var(--green); }
.btn-primary:hover { background: var(--green-dark); color: white; }
.btn-secondary { color: var(--green); background: white; border-color: var(--border); }
.btn-secondary:hover { background: var(--green-light); }
.btn-danger { color: white; background: var(--danger); border-color: var(--danger); }
.btn-small { padding: 6px 9px; font-size: .86rem; }
.alert { border: 1px solid; border-radius: 6px; padding: 12px 15px; margin-bottom: 16px; }
.alert-success { background: #e9f6ef; border-color: #91c7a7; color: #185a36; }
.alert-warning { background: var(--warning); border-color: #e4c86b; color: #6b5312; }
.alert-danger { background: #fce8e8; border-color: #dda7a7; color: #812929; }
.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--border); border-radius: 7px; background: white; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 11px 12px; text-align: left; border-bottom: 1px solid #e2e8e5; vertical-align: middle; }
th { background: var(--green-light); color: var(--green); font-size: .82rem; letter-spacing: .02em; }
tbody tr:last-child td { border-bottom: 0; }
tr.review { background: #fff8e3; }
tr.unknown { background: #fce8e8; color: #812929; font-weight: 600; }
.row-actions { display: flex; gap: 5px; white-space: nowrap; }
.inline-form { display: inline; }
.filter-bar { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; background: white; border: 1px solid var(--border); border-radius: 7px; padding: 14px; margin-bottom: 14px; }
.field { margin-bottom: 16px; }
.filter-bar .field { margin: 0; }
label { display: block; font-weight: 600; margin-bottom: 5px; }
input:not([type=checkbox]), select { width: 100%; padding: 9px 10px; border: 1px solid #aebbb6; border-radius: 5px; background: white; color: var(--ink); font: inherit; }
input:focus, select:focus { outline: 3px solid rgba(23,76,60,.15); border-color: var(--green); }
.filter-bar input, .filter-bar select { min-width: 155px; }
.check-field { display: flex; align-items: center; gap: 8px; }
.check-field label { margin: 0; }
.validation-summary-errors, .field-validation-error { color: var(--danger); }
.validation-summary-errors ul { margin: 0 0 16px; }
.form-card { max-width: 580px; margin: 0 auto; }
.auth-card { max-width: 460px; margin: 6vh auto; }
.auth-card .brand-mark { display: block; width: 68px; height: 68px; margin: 0 auto 14px; }
.auth-card h1, .auth-card .muted { text-align: center; }
.auth-card form { margin-top: 24px; }
.upload-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.upload-card form { margin-top: 18px; }
.upload-card input[type=file] { margin-bottom: 12px; }
.badge { display: inline-block; padding: 3px 8px; border-radius: 20px; background: var(--green-light); color: var(--green); font-size: .8rem; font-weight: 700; }
.badge-inactive { background: #ececec; color: #666; }
.callout { border: 1px solid #e9d798; background: #fff8e3; color: #6b5312; border-radius: 6px; padding: 13px; margin: 16px 0; }
.empty { padding: 30px; text-align: center; color: var(--muted); }

@media (max-width: 980px) {
    .nav-toggle { display: block; }
    .main-nav { display: none; position: absolute; z-index: 20; top: 76px; left: 12px; right: 12px; padding: 10px; border-radius: 7px; background: var(--green-dark); box-shadow: 0 8px 24px rgba(0,0,0,.2); flex-direction: column; align-items: stretch; }
    .main-nav.open { display: flex; }
    .main-nav a, .nav-link { width: 100%; text-align: left; }
    .stage { display: none; }
}

@media (max-width: 700px) {
    .topbar { min-height: 72px; padding: 11px 14px; }
    .brand { min-width: 0; }
    .brand img { width: 38px; height: 38px; }
    .brand strong { font-size: 1.03rem; }
    .brand small { display: none; }
    .page-shell { width: min(100% - 20px, 1260px); margin-top: 17px; }
    .page-header { flex-direction: column; }
    .cards, .upload-grid { grid-template-columns: 1fr; }
    .card { padding: 17px; }
    .actions { width: 100%; }
    .actions .btn { flex: 1; }
    .filter-bar { align-items: stretch; }
    .filter-bar .field { width: 100%; }
    .filter-bar input, .filter-bar select, .filter-bar .btn { width: 100%; }
}