:root {
    /* SENA Development brand — teal + mint + white, gray ink (from logo) */
    --brand-1: #0e4a43;
    --brand-2: #17756a;
    --accent: #2bb5a3;
    --accent-dark: #1f9484;
    --accent-soft: #e2f5f1;
    --mint: #9bd9cd;
    --ok: #2f9e5f;
    --ok-soft: #e6f5ec;
    --warn: #d98a1a;
    --warn-soft: #fdf1dd;
    --danger: #d64545;
    --danger-soft: #fbe7e7;
    --muted: #6d6e71;
    --line: #e3ecea;
    --bg: #f2f7f6;
    --card: #ffffff;
    --ink: #2f3a38;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Segoe UI", "Sarabun", system-ui, -apple-system, sans-serif;
    font-size: 14px;
}

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

.sidebar {
    width: 250px;
    flex: 0 0 250px;
    background: linear-gradient(180deg, var(--brand-1), var(--brand-2));
    color: #d3ebe6;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-brand {
    display: flex; align-items: center; gap: 10px;
    padding: 20px 20px 18px;
    border-bottom: 1px solid rgba(255,255,255,.10);
}
.brand-mark {
    background: #fff;
    color: #6d6e71; font-weight: 800; letter-spacing: .5px;
    padding: 6px 9px; border-radius: 6px; font-size: 14px;
}
.brand-text { color: #fff; font-size: 15px; letter-spacing: .5px; }

.sidebar-nav { padding: 14px 12px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.sidebar-nav .nav-link {
    display: flex; align-items: center; gap: 12px;
    color: #c4e4de; padding: 10px 14px; border-radius: 9px;
    font-weight: 500; text-decoration: none; transition: all .15s;
}
.sidebar-nav .nav-link i { font-size: 17px; width: 20px; text-align: center; }
.sidebar-nav .nav-link:hover { background: rgba(255,255,255,.10); color: #fff; }
.sidebar-nav .nav-link.active { background: var(--accent); color: #fff; box-shadow: 0 6px 16px rgba(43,181,163,.40); }

.sidebar-foot { padding: 14px 20px; font-size: 11px; color: #8fc4bb; border-top: 1px solid rgba(255,255,255,.10); }

.content-area { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
    background: var(--card);
    border-bottom: 1px solid var(--line);
    padding: 14px 26px;
    display: flex; align-items: center; gap: 14px;
    position: sticky; top: 0; z-index: 20;
}
.page-title { font-size: 19px; font-weight: 700; margin: 0; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.user-chip { color: var(--muted); font-weight: 600; }

.page-body { padding: 24px 26px 40px; }

/* ---------- cards ---------- */
.card-soft { background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; }
.stat {
    background: var(--card); border: 1px solid var(--line); border-radius: 14px;
    padding: 18px 18px; display: flex; align-items: center; gap: 14px;
}
.stat .ic { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; }
.stat .val { font-size: 24px; font-weight: 800; line-height: 1.1; }
.stat .lbl { color: var(--muted); font-size: 12.5px; font-weight: 600; }
.ic.blue { background: var(--accent-soft); color: var(--accent-dark); }
.ic.green { background: var(--ok-soft); color: var(--ok); }
.ic.orange { background: var(--warn-soft); color: var(--warn); }
.ic.red { background: var(--danger-soft); color: var(--danger); }
.ic.slate { background: #eef1f6; color: #55607a; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.panel-head { padding: 14px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.panel-head h2 { font-size: 15px; font-weight: 700; margin: 0; }
.panel-body { padding: 16px 18px; }

/* ---------- tables ---------- */
table.tbl { width: 100%; border-collapse: collapse; }
table.tbl th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); padding: 10px 12px; border-bottom: 1px solid var(--line); }
table.tbl td { padding: 11px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.tbl tr:last-child td { border-bottom: none; }
table.tbl tbody tr:hover { background: #f4fbf9; }

/* ---------- badges ---------- */
.badge-soft { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.b-ok { background: var(--ok-soft); color: var(--ok); }
.b-warn { background: var(--warn-soft); color: var(--warn); }
.b-danger { background: var(--danger-soft); color: var(--danger); }
.b-blue { background: var(--accent-soft); color: var(--accent-dark); }
.b-slate { background: #eef1f6; color: #55607a; }
.method { font-family: ui-monospace, "Cascadia Mono", monospace; font-weight: 700; font-size: 11.5px; padding: 2px 7px; border-radius: 6px; }
.m-get { background: var(--ok-soft); color: var(--ok); }
.m-post { background: var(--accent-soft); color: var(--accent-dark); }
.m-put { background: var(--warn-soft); color: var(--warn); }
.m-delete { background: var(--danger-soft); color: var(--danger); }
.mono { font-family: ui-monospace, "Cascadia Mono", monospace; }

/* ---------- switch ---------- */
.form-switch .form-check-input { width: 2.6em; height: 1.4em; cursor: pointer; }
.form-check-input:checked { background-color: var(--accent); border-color: var(--accent); }

/* ---------- misc ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.log-pre { background: #0d2320; color: #d9efeb; border-radius: 12px; padding: 16px; font-family: ui-monospace, monospace; font-size: 12.5px; line-height: 1.6; max-height: 62vh; overflow: auto; white-space: pre-wrap; word-break: break-word; }
.empty { text-align: center; color: var(--muted); padding: 40px 10px; }
.empty i { font-size: 34px; opacity: .5; display: block; margin-bottom: 8px; }
a.plain { text-decoration: none; color: inherit; }
a.link { color: var(--accent-dark); text-decoration: none; }
a.link:hover { text-decoration: underline; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, var(--brand-1), var(--accent)); padding: 20px; }
.login-card { background: #fff; border-radius: 18px; width: 100%; max-width: 400px; padding: 34px 32px; box-shadow: 0 24px 60px rgba(0,0,0,.28); }
.login-brand { text-align: center; margin-bottom: 22px; }
.login-brand .mk { background: var(--accent); color: #fff; font-weight: 800; padding: 8px 12px; border-radius: 8px; font-size: 18px; }
.login-brand h1 { font-size: 18px; margin: 12px 0 2px; color: #6d6e71; }
.login-brand p { color: var(--muted); font-size: 13px; margin: 0; }

@media (max-width: 992px) {
    .sidebar { position: fixed; z-index: 40; left: -260px; transition: left .2s; }
    .sidebar.open { left: 0; }
}

/* ---------- Bootstrap theme overrides → SENA teal ---------- */
.btn-primary {
    --bs-btn-bg: var(--accent);
    --bs-btn-border-color: var(--accent);
    --bs-btn-hover-bg: var(--accent-dark);
    --bs-btn-hover-border-color: var(--accent-dark);
    --bs-btn-active-bg: var(--accent-dark);
    --bs-btn-active-border-color: var(--accent-dark);
    --bs-btn-disabled-bg: var(--accent);
    --bs-btn-disabled-border-color: var(--accent);
}
.btn-outline-secondary { --bs-btn-hover-bg: #e7f2ef; --bs-btn-hover-color: var(--ink); --bs-btn-hover-border-color: #cfe0dc; }
.form-control:focus, .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 .2rem rgba(43,181,163,.20);
}
a { color: var(--accent-dark); }
.alert-primary {
    --bs-alert-color: #12564d;
    --bs-alert-bg: var(--accent-soft);
    --bs-alert-border-color: #b8e5dd;
}
.text-bg-success { background-color: var(--accent) !important; }