:root {
    --bs-primary: #2563eb;
    --bs-primary-rgb: 37, 99, 235;
    --bs-primary-bg-subtle: #dbeafe;
    --bs-primary-border-subtle: #bfdbfe;
    --bs-link-color: #2563eb;
    --bs-link-color-rgb: 37, 99, 235;
    --bs-link-hover-color: #1d4ed8;
    --bs-link-hover-color-rgb: 29, 78, 216;
    --bs-border-radius: 0.75rem;
    --bs-border-radius-sm: 0.5rem;
    --bs-border-radius-lg: 1rem;
    --bs-body-font-family: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --bs-body-bg: #f4f5fb;
    --bs-body-color: #0f172a;

    --pg-primary: #2563eb;
    --pg-primary-dark: #1d4ed8;
    --pg-primary-darker: #1e40af;
    --pg-ink: #0f172a;
    --pg-muted: #64748b;
    --pg-border: #e2e8f0;
    --pg-surface: #ffffff;
    --pg-grad: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

body {
    font-family: var(--bs-body-font-family);
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
}

/* ---------- Brand ---------- */
.brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--pg-grad);
    color: #fff;
    font-size: 1.05rem;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
    flex: 0 0 auto;
}

.brand-text {
    font-weight: 700;
    letter-spacing: -0.02em;
    font-size: 1.1rem;
}

.brand-text span {
    color: var(--pg-primary);
}

/* ---------- Public navbar ---------- */
.public-navbar {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--pg-border);
    padding: 0.8rem 0;
}

.public-navbar .navbar-brand {
    color: var(--pg-ink);
}

.public-navbar .nav-link {
    color: #334155;
    font-weight: 500;
    font-size: 0.925rem;
    padding: 0.5rem 0.9rem;
    border-radius: 0.5rem;
}

.public-navbar .nav-link:hover {
    color: var(--pg-primary);
}

/* ---------- Public main / footer ---------- */
.public-main {
    min-height: calc(100vh - 160px);
}

.public-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 1.75rem 0;
    margin-top: 4rem;
}

.public-footer a {
    color: #cbd5e1;
}

.public-footer a:hover {
    color: #fff;
}

/* ---------- Cards ---------- */
.card {
    border: 1px solid var(--pg-border);
    border-radius: var(--bs-border-radius-lg);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.card-header {
    background: var(--pg-surface);
    border-bottom: 1px solid var(--pg-border);
    font-weight: 600;
}

/* ---------- Stat cards ---------- */
.stat-card {
    border: 1px solid var(--pg-border);
    border-radius: var(--bs-border-radius-lg);
    background: var(--pg-surface);
    padding: 1.25rem;
    height: 100%;
}

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-card .stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
}

.stat-card .stat-label {
    color: var(--pg-muted);
    font-size: 0.85rem;
}

/* ---------- Credential box ---------- */
.credential-box {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.8rem;
    background: #f8fafc;
    border: 1px solid var(--pg-border);
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
    word-break: break-all;
}

/* ---------- Tables ---------- */
.table thead th {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--pg-muted);
    border-bottom-width: 1px;
    background: #f8fafc;
}

/* ---------- Forms ---------- */
.form-control:focus,
.form-select:focus {
    border-color: var(--pg-primary);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

.form-label {
    font-weight: 600;
    font-size: 0.875rem;
}

/* ---------- Buttons ---------- */
.btn {
    font-weight: 500;
}

.btn-primary {
    background: var(--pg-grad);
    border: none;
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, var(--pg-primary-dark) 0%, var(--pg-primary-darker) 100%);
}

/* ---------- Auth pages ---------- */
.auth-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 76px);
    padding: 3rem 1rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
}

.auth-card .card {
    border-radius: 1.25rem;
    border: 1px solid var(--pg-border);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

/* ---------- Buttons reset (link as button) ---------- */
.btn-link.nav-link {
    text-decoration: none;
}