:root {
    --primary-color: #26A699;
    --secondary-color: #317B74;
    --accent-color: #2D514D;
    --dark-color: #253332;
}

/* ── Navbar ─────────────────────────────────────────────── */
.rfc-navbar {
    background-color: var(--dark-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .25);
}

.rfc-navbar .navbar-brand {
    font-size: 1.15rem;
    letter-spacing: .01em;
}

.rfc-navbar .nav-link {
    font-size: .9rem;
    padding: .45rem .75rem;
    border-radius: 6px;
    transition: background .15s;
}

.rfc-navbar .nav-link:hover,
.rfc-navbar .nav-link.active {
    background: rgba(255, 255, 255, .1);
}

.rfc-lang-select {
    background-color: rgba(255, 255, 255, .08);
    color: #fff;
    border-color: rgba(255, 255, 255, .2);
    font-size: .8rem;
}

.rfc-lang-select option {
    background: var(--dark-color);
}

.rfc-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .15);
    font-size: .85rem;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

/* ── Action cards ────────────────────────────────────────── */
.action-card {
    border: 1px solid rgba(0, 0, 0, .07);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .06);
    transition: transform .15s ease, box-shadow .15s ease;
}

.action-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .11);
}

.action-icon {
    font-size: 2.4rem;
    color: var(--primary-color);
    line-height: 1;
}

/* ── Stat cards ──────────────────────────────────────────── */
.stat-card {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    padding: 1.25rem 1.4rem;
    color: #fff;
    border: none;
    box-shadow: 0 3px 12px rgba(0, 0, 0, .15);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.1;
}

.stat-label {
    font-size: .85rem;
    opacity: .9;
    margin-top: .15rem;
}

.stat-bg-icon {
    position: absolute;
    right: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2.6rem;
    opacity: .25;
    pointer-events: none;
}

.stat-teal   { background: linear-gradient(135deg, #26A699 0%, #1a7a70 100%); }
.stat-dark   { background: linear-gradient(135deg, #317B74 0%, #253332 100%); }
.stat-orange { background: linear-gradient(135deg, #fd7e14 0%, #c96010 100%); }
.stat-danger { background: linear-gradient(135deg, #dc3545 0%, #a01f2b 100%); }

/* ── Tables ──────────────────────────────────────────────── */
.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid rgba(0, 0, 0, .08);
    padding: .75rem 1rem;
}

.table th {
    font-size: .8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: #6c757d;
}