:root {
    --color-bg: #f4f5f7;
    --color-surface: #ffffff;
    --color-border: #e2e4e9;
    --color-text: #1e2229;
    --color-text-muted: #6b7280;
    --color-primary: #2f5233;
    --color-primary-dark: #22401f;
    --color-warning-bg: #fff4e5;
    --color-warning-border: #f0b429;
    --color-danger: #c0392b;
    --radius: 10px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 230px;
    background: #1b1f24;
    color: #f4f5f7;
    padding: 24px 16px;
    flex-shrink: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 32px;
}

.brand-mark {
    background: var(--color-primary);
    color: white;
    font-weight: 700;
    font-size: 14px;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-sub {
    font-size: 12px;
    color: #9aa0aa;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar nav a {
    color: #cfd3da;
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
}

.sidebar nav a:hover { background: #2a2f36; }
.sidebar nav a.active { background: var(--color-primary); color: white; }
.sidebar nav a.disabled { color: #5b6068; cursor: default; }
.sidebar nav a.disabled:hover { background: none; }

.content {
    flex: 1;
    padding: 32px 40px;
    max-width: 1100px;
}

h1 { font-size: 22px; margin: 0 0 20px; }
h2 { font-size: 16px; margin: 0 0 12px; color: var(--color-text); }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.kpi-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px;
}

.kpi-card.kpi-warning {
    border-color: var(--color-warning-border);
    background: var(--color-warning-bg);
}

.kpi-value { font-size: 24px; font-weight: 700; }
.kpi-label { font-size: 13px; color: var(--color-text-muted); margin-top: 4px; }

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
}

table:not(.panel table) {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

th, td {
    text-align: left;
    padding: 10px 12px;
    font-size: 14px;
    border-bottom: 1px solid var(--color-border);
}

th { color: var(--color-text-muted); font-weight: 600; background: #fafbfc; }
tr:last-child td { border-bottom: none; }
tr.row-warning { background: var(--color-warning-bg); }

.row-actions a, .row-actions button.link-danger {
    font-size: 13px;
    margin-right: 10px;
    text-decoration: none;
    color: var(--color-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.link-danger { color: var(--color-danger) !important; }

.search-form {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.search-form input {
    flex: 1;
    max-width: 400px;
}

input, textarea, select {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}

input[type="checkbox"] {
    width: auto;
}

.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.btn-primary:hover { background: var(--color-primary-dark); }

.form-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 600px;
}

.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--color-text-muted); }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 16px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 8px;
}

.empty-hint { color: var(--color-text-muted); font-size: 14px; padding: 16px 0; }

.flash-container { margin-bottom: 16px; }
.flash {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 8px;
}
.flash-success { background: #e6f4ea; color: #1e7a34; }
.flash-error { background: #fdecea; color: var(--color-danger); }