:root {
    --sena-green: #39A900;
    --sena-green-dark: #2c8200;
    --sena-white: #ffffff;
    --accent-orange: #FF6B00;
    --danger: #dc3545;
    --bg: #f3f5f7;
    --panel: #ffffff;
    --text: #1f2933;
    --muted: #6b7785;
    --border: #e2e8f0;
    --sidebar-bg: #0e1b0a;
    --sidebar-text: #cfe6c2;
    --shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Montserrat', system-ui, sans-serif; }

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

a { text-decoration: none; color: inherit; }

/* ---------- LOGIN ---------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, #1a2a12 0%, #000 100%);
    padding: 20px;
}
.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--panel);
    border-radius: 20px;
    padding: 40px 35px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
}
.login-card h1 { font-size: 1.8rem; font-weight: 900; text-align: center; }
.login-card h1 span { color: var(--sena-green); }
.login-card .subtitle { text-align: center; color: var(--muted); margin: 6px 0 28px; font-size: .9rem; }

/* ---------- LAYOUT ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    overflow-y: auto;
}
.sidebar .brand {
    padding: 22px 20px;
    font-size: 1.4rem;
    font-weight: 900;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.sidebar .brand span { color: var(--sena-green); }
.sidebar nav { padding: 12px 0; flex: 1; }
.sidebar .nav-section { padding: 14px 20px 6px; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: #6f8a63; }
.sidebar a.nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 11px 20px; color: var(--sidebar-text);
    font-size: .92rem; transition: .15s; border-left: 3px solid transparent;
}
.sidebar a.nav-link:hover { background: rgba(57, 169, 0, .12); color: #fff; }
.sidebar a.nav-link.active { background: rgba(57, 169, 0, .18); color: #fff; border-left-color: var(--sena-green); font-weight: 700; }
.sidebar .nav-ico { width: 20px; text-align: center; }

.main { flex: 1; margin-left: 250px; display: flex; flex-direction: column; min-width: 0; }

.topbar {
    height: 64px; background: var(--panel); border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 28px; position: sticky; top: 0; z-index: 10; gap: 12px;
}
.topbar-left { display: flex; align-items: center; gap: 12px; min-width: 0; flex: 1; }
.topbar .page-title { font-size: 1.15rem; font-weight: 800; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .user-box { display: flex; align-items: center; gap: 14px; font-size: .9rem; flex-shrink: 0; }
.topbar .user-box .role-badge {
    background: var(--sena-green); color: #fff; font-size: .68rem; font-weight: 700;
    padding: 3px 10px; border-radius: 20px; text-transform: uppercase;
}

.sidebar-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    padding: 0;
    flex-shrink: 0;
}
.sidebar-toggle-bar {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 40;
}
.sidebar-overlay.show { display: block; }

.content { padding: 28px; flex: 1; min-width: 0; }

.site-footer {
    padding: 16px 28px;
    color: var(--muted);
    font-size: .8rem;
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--panel);
}

/* ---------- COMPONENTS ---------- */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); }
.card-pad { padding: 22px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 18px; margin-bottom: 26px; }
.stat {
    background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
    padding: 20px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.stat .stat-ico { position: absolute; right: 14px; top: 14px; font-size: 1.6rem; opacity: .25; }
.stat .stat-value { font-size: 2rem; font-weight: 900; color: var(--sena-green); }
.stat .stat-label { color: var(--muted); font-size: .85rem; margin-top: 2px; }

.btn {
    display: inline-flex; align-items: center; gap: 8px; border: none; cursor: pointer;
    background: var(--sena-green); color: #fff; font-weight: 700; font-size: .9rem;
    padding: 11px 20px; border-radius: 10px; transition: .15s;
}
.btn:hover { background: var(--sena-green-dark); }
.btn-block { width: 100%; justify-content: center; }
.btn-secondary { background: #64748b; }
.btn-secondary:hover { background: #4b5563; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b52a37; }
.btn-sm { padding: 7px 12px; font-size: .8rem; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; }
.form-control {
    width: 100%; padding: 11px 13px; border: 1px solid var(--border); border-radius: 10px;
    font-size: .92rem; background: #fff; transition: .15s;
}
.form-control:focus { outline: none; border-color: var(--sena-green); box-shadow: 0 0 0 3px rgba(57, 169, 0, .15); }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.data th, table.data td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); }
table.data th { background: #f8fafc; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
table.data tr:hover td { background: #f8fafc; }

.badge { font-size: .72rem; font-weight: 700; padding: 3px 9px; border-radius: 20px; }
.badge-green { background: rgba(57, 169, 0, .15); color: var(--sena-green-dark); }
.badge-gray { background: #e2e8f0; color: #475569; }
.badge-orange { background: rgba(255, 107, 0, .15); color: var(--accent-orange); }

.alert { padding: 13px 16px; border-radius: 10px; margin-bottom: 16px; font-size: .9rem; font-weight: 600; }
.alert-success { background: rgba(57, 169, 0, .12); color: var(--sena-green-dark); }
.alert-error { background: rgba(220, 53, 69, .12); color: var(--danger); }

.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 12px; }
.page-head h2 { font-size: 1.4rem; font-weight: 800; }
.page-head .btn { flex-shrink: 0; }
.page-head-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.table-actions { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
table.data { min-width: 560px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.list-filters .form-group { min-width: 140px; }
.list-filter-q { min-width: 200px !important; flex: 1 1 220px !important; }
.filter-actions-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-actions-label { display: block; height: 0; overflow: hidden; margin: 0 !important; }
.list-filter-meta { padding: 0 4px; }

.empty { text-align: center; padding: 40px; color: var(--muted); }

.site-footer a { color: var(--sena-green); text-decoration: none; font-weight: 600; }
.site-footer a:hover { text-decoration: underline; }

@media (max-width: 820px) {
    body.sidebar-open { overflow: hidden; }

    .sidebar-toggle { display: inline-flex; }

    .sidebar {
        transform: translateX(-100%);
        transition: transform .2s ease;
        z-index: 50;
        width: min(280px, 86vw);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
    }
    .sidebar.open { transform: translateX(0); }

    .main { margin-left: 0; width: 100%; }

    .topbar {
        height: auto;
        min-height: 56px;
        padding: 10px 14px;
        flex-wrap: wrap;
    }
    .topbar .page-title { font-size: 1rem; white-space: normal; }
    .topbar .user-box { gap: 8px; font-size: .82rem; }
    .topbar .user-name { display: none; }

    .content { padding: 16px 14px 20px; }

    .page-head { flex-direction: column; align-items: stretch; }
    .page-head h2 { font-size: 1.2rem; }
    .page-head > .btn,
    .page-head > a.btn { width: 100%; justify-content: center; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stat { padding: 16px; }
    .stat .stat-value { font-size: 1.6rem; }

    .card-pad { padding: 16px; }

    .form-row,
    .grid-2 { grid-template-columns: 1fr; }

    .grid-filters { flex-direction: column; align-items: stretch; }
    .grid-filters .form-group { width: 100% !important; min-width: 0 !important; margin: 0 !important; }

    .page-head-actions { width: 100%; }
    .page-head-actions .btn { flex: 1 1 calc(50% - 4px); justify-content: center; min-width: 140px; }

    table.data td:last-child { white-space: normal; }
    table.data td .btn-sm { margin: 2px 4px 2px 0; }

    .btn { justify-content: center; }
    .btn-sm { padding: 8px 10px; font-size: .75rem; }

    table.data { font-size: .82rem; min-width: 520px; }
    table.data th, table.data td { padding: 10px 10px; }

    .site-footer { padding: 14px 14px calc(14px + env(safe-area-inset-bottom, 0px)); font-size: .75rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .topbar .role-badge { display: none; }
    .topbar .user-box .btn { padding: 7px 10px; }
}