:root {
    --primary: #1a7a4c;
    --primary-dark: #125c38;
    --secondary: #c9932f;
    --bg: #f4f6f5;
    --card-bg: #ffffff;
    --text: #1f2a24;
    --text-muted: #6b7a72;
    --border: #e2e8e4;
    --danger: #c0392b;
    --warning: #d68910;
    --success: #1a7a4c;
    --info: #2874a6;
    --sidebar-w: 250px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
a { text-decoration: none; color: inherit; }
.app-wrapper { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
    width: var(--sidebar-w);
    background: linear-gradient(180deg, var(--primary-dark), #0d4028);
    color: #fff;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    overflow-y: auto;
    z-index: 100;
}
.sidebar-brand {
    padding: 20px 18px;
    font-weight: 700;
    font-size: 17px;
    border-bottom: 1px solid rgba(255,255,255,.12);
    display: flex; align-items: center; gap: 10px;
}
.sidebar-brand small { display: block; font-weight: 400; font-size: 11px; opacity: .75; }
.nav-group-title { padding: 14px 18px 6px; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; opacity: .55; }
.nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 18px; color: rgba(255,255,255,.88); font-size: 13.5px;
    border-left: 3px solid transparent;
}
.nav-link:hover { background: rgba(255,255,255,.08); }
.nav-link.active { background: rgba(255,255,255,.14); border-left-color: var(--secondary); font-weight: 600; }
.nav-icon { width: 18px; text-align: center; opacity: .9; }

/* MAIN */
.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-width: 0;
}
.topbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex; justify-content: space-between; align-items: center;
    position: sticky; top: 0; z-index: 50;
}
.topbar h1 { font-size: 18px; font-weight: 600; }
.user-chip { display: flex; align-items: center; gap: 10px; }
.avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--primary); color: #fff; display: flex;
    align-items: center; justify-content: center; font-weight: 600; font-size: 13px;
}
.content { padding: 22px 24px; }

/* CARDS & STATS */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 16px 18px; display: flex; align-items: center; gap: 14px;
}
.stat-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; }
.stat-card .stat-value { font-size: 20px; font-weight: 700; }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); }

.card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 18px; margin-bottom: 18px;
}
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.card-header h2 { font-size: 15px; font-weight: 600; }

/* TABLE */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th {
    text-align: left; background: #f0f4f2; padding: 10px 12px; font-weight: 600;
    color: var(--text-muted); text-transform: uppercase; font-size: 11px; letter-spacing: .3px;
    border-bottom: 1px solid var(--border);
}
table.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
table.data-table tr:hover td { background: #fafcfb; }

/* FORMS */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 12.5px; font-weight: 600; color: var(--text-muted); }
.form-group input, .form-group select, .form-group textarea {
    padding: 9px 11px; border: 1px solid var(--border); border-radius: 7px; font-size: 13.5px;
    font-family: inherit; background: #fff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-actions { margin-top: 16px; display: flex; gap: 10px; }

/* BUTTONS */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 16px; border-radius: 7px; border: none; font-size: 13.5px; font-weight: 600;
    cursor: pointer; text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #eef1ef; color: var(--text); }
.btn-danger { background: #fdecea; color: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }

.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-success { background: #e5f6ec; color: var(--success); }
.badge-warning { background: #fdf2e3; color: var(--warning); }
.badge-danger { background: #fdecea; color: var(--danger); }
.badge-info { background: #e8f1fa; color: var(--info); }
.badge-muted { background: #eef1ef; color: var(--text-muted); }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 13.5px; }
.flash-success { background: #e5f6ec; color: var(--success); }
.flash-error { background: #fdecea; color: var(--danger); }

.filters-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: end;}
.pagination { display: flex; gap: 6px; margin-top: 14px; }
.pagination a, .pagination span { padding: 6px 11px; border-radius: 6px; border: 1px solid var(--border); font-size: 12.5px; }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); }
.login-box { background: #fff; padding: 36px 32px; border-radius: 14px; width: 380px; box-shadow: 0 20px 50px rgba(0,0,0,.2); }
.login-box h1 { font-size: 20px; margin-bottom: 4px; }
.login-box p.sub { color: var(--text-muted); font-size: 13px; margin-bottom: 22px; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: none; align-items: center; justify-content: center; z-index: 200; }
.modal-overlay.open { display: flex; }
.modal-box { background: #fff; border-radius: 12px; padding: 20px; width: 90%; max-width: 480px; text-align:center; }