:root {
    --sidebar-width: 250px;
    --brand: #1f6f5b;
    --brand-dark: #155544;
    --bg: #f3f6f5;
}

body {
    background: linear-gradient(160deg, #eef5f2 0%, #f8faf9 45%, #e8f0ec 100%);
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

#wrapper {
    min-height: 100vh;
}

#sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    position: sticky;
    top: 0;
    flex-shrink: 0;
}

#sidebar .nav-link {
    border-radius: .4rem;
    margin-bottom: .15rem;
    opacity: .9;
}

#sidebar .nav-link:hover,
#sidebar .nav-link.active {
    background: var(--brand);
    opacity: 1;
}

#page-content {
    min-width: 0;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.card-panel {
    background: #fff;
    border: 1px solid #dce6e1;
    border-radius: .6rem;
    box-shadow: 0 8px 24px rgba(31, 111, 91, .06);
}

.btn-brand {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
}

.btn-brand:hover {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    color: #fff;
}

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.5rem;
    background:
        radial-gradient(circle at top left, rgba(31, 111, 91, .18), transparent 40%),
        linear-gradient(145deg, #12352d, #1f6f5b 45%, #2f8f75);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: rgba(255, 255, 255, .96);
    border-radius: .8rem;
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .2);
}

.table img.thumb {
    width: 42px;
    height: 42px;
    object-fit: cover;
    border-radius: .35rem;
}

@media (max-width: 991px) {
    #sidebar {
        position: fixed;
        left: 0;
        top: 0;
        z-index: 1040;
        transform: translateX(-100%);
        transition: transform .2s ease;
    }
    #sidebar.show {
        transform: translateX(0);
    }
}