:root {
    --primary-green: #1A4325;
    --accent-green:  #2E7D32;
    --light-green:   #D6F0E0;
    --bg-gray:       #f0f4f1;
    --sidebar-width: 260px;
    --card-bg:       #ffffff;
    --text-main:     #1e2d24;
    --text-muted:    #666;
    --border-color:  #eee;
}

/* ─── DARK MODE VARIABLES ─── */
body.dark-mode {
    --bg-gray:      #0f1a13;
    --card-bg:      #1a2b1f;
    --text-main:    #e0ebe3;
    --text-muted:   #8ba090;
    --border-color: #2a3f2e;
    background: var(--bg-gray) !important;
    color: var(--text-main);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', sans-serif;
    background: var(--bg-gray);
    display: flex;
    min-height: 100vh;
    color: var(--text-main);
    transition: background .3s, color .3s;
}

/* ─── SIDEBAR ─── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--primary-green);
    color: white;
    position: fixed;
    height: 100vh;
    z-index: 9999;
    display: flex;
    flex-direction: column;
}
.sidebar-logo {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.sidebar-logo img {
    width: 90px !important;
    height: auto !important;
    display: block;
    margin: 0 auto 8px !important;
}
.nav-item {
    padding: 14px 22px;
    color: rgba(255,255,255,.8);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: .2s;
    font-size: 14px;
}
.nav-item:hover, .nav-item.active {
    background: var(--accent-green);
    color: white;
}
.sidebar-footer {
    margin-top: auto;
    padding: 14px;
    border-top: 1px solid rgba(255,255,255,.1);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.btn-secondary {
    background: rgba(255,255,255,.12);
    color: white;
    border: none;
    padding: 9px;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-size: 13px;
    transition: .2s;
}
.btn-secondary:hover { background: rgba(255,255,255,.22); }

/* ─── MAIN CONTENT ─── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 28px;
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
}

/* ─── STATS GRID ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}
.stat-card {
    background: var(--card-bg);
    padding: 18px 20px;
    border-radius: 9px;
    box-shadow: 0 2px 10px rgba(0,0,0,.06);
    border-right: 5px solid var(--accent-green);
    text-align: right;
    transition: background .3s;
}
.stat-card h3 {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: .4px;
    font-weight: 600;
}
.stat-card p {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-green);
}
body.dark-mode .stat-card p { color: #6fcf8a; }

/* ─── DATA TABLE ─── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    transition: background .3s;
}
.data-table th {
    background: var(--primary-green);
    color: white;
    padding: 11px 12px;
    text-align: right;
    font-size: 13px;
    font-weight: 600;
}
.data-table td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--border-color);
    text-align: right;
    font-size: 13px;
    color: var(--text-main);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(26,67,37,.04); }
body.dark-mode .data-table tr:hover td { background: rgba(255,255,255,.04); }

/* ─── BUTTONS ─── */
.btn-primary {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: .2s;
}
.btn-primary:hover { background: var(--accent-green); }

/* ─── DARK MODE MISC ─── */
body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 { color: #d0e8d8; }

body.dark-mode input,
body.dark-mode select,
body.dark-mode textarea {
    background: #1f3028 !important;
    color: #d0e8d8 !important;
    border-color: #2a4035 !important;
}

body.dark-mode .stat-card,
body.dark-mode .data-table { box-shadow: 0 2px 10px rgba(0,0,0,.3); }

/* ─── PRINT ─── */
@media print {
    .sidebar, .no-print, .controls { display: none !important; }
    .main-content { margin-left: 0 !important; width: 100% !important; padding: 0 !important; }
    body { background: white !important; }
}