:root {
    --topbar-h: 56px;
    --bg-1: #0e0f12;
    --bg-2: #151821;
    --accent: #7cb3ff;
    --accent-2: #b3c7ff;
    --text: #e6e9f0;
    --muted: #9aa4b2;
    --border: rgba(255, 255, 255, .08);
    --card: rgba(255, 255, 255, 0.03);
}

html, body {
    background: linear-gradient(180deg, var(--bg-1), var(--bg-2) 40%, var(--bg-1) 100%);
    color: var(--text);
    height: 100%;
}

.btn-accent {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    color: #0b0d12;
    border: none;
}

.btn-accent:hover {
    opacity: .95;
}

.app {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 280px 1fr;
    grid-template-rows: var(--topbar-h) 1fr;
    grid-template-areas: "topbar topbar" "sidebar content";
}

@media (max-width: 991.98px) {
    .app {
        grid-template-columns: 1fr;
        grid-template-areas: "topbar" "content";
    }
}

.topbar {
    grid-area: topbar;
    position: sticky;
    top: 0;
    z-index: 1030;
    backdrop-filter: blur(8px);
    background: rgba(14, 15, 18, .6);
    border-bottom: 1px solid var(--border);
    height: var(--topbar-h);
}

.topbar .navbar-brand .brand {
    letter-spacing: .1em;
    text-transform: uppercase;
    font-weight: 800;
    font-size: 1rem;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.topbar .btn, .topbar .nav-link, .topbar .navbar-toggler {
    height: 36px;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}

.navbar-toggler {
    border-color: var(--border);
    color: var(--text);
    padding: .25rem .6rem;
    border-radius: .5rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 .2rem rgba(124, 179, 255, .15);
}

.fa-fw {
    width: 1.25em;
    text-align: center;
}

.sidebar {
    grid-area: sidebar;
    border-right: 1px solid var(--border);
    background: rgba(14, 15, 18, .5);
}

.sidebar .brand {
    letter-spacing: .1em;
    text-transform: uppercase;
    font-weight: 800;
    font-size: 1rem;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sidebar .nav-link {
    color: var(--muted);
    border-radius: .75rem;
    padding: .6rem .75rem;
}

.sidebar .nav-link i {
    width: 1.25rem;
    text-align: center;
    margin-right: .5rem;
}

.sidebar .nav-link.active, .sidebar .nav-link:hover {
    color: #0b0d12;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-color: transparent;
}

.content {
    grid-area: content;
}

.card-dark {
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 1rem;
}

.table-dark.table-striped tbody tr:nth-of-type(odd) > * {
    --bs-table-bg-type: rgba(255, 255, 255, .02);
}

.table-dark {
    --bs-table-bg: transparent;
    border-color: var(--border);
}

.form-control, .form-select {
    background-color: #0f1218;
    border-color: var(--border);
    color: var(--text);
}

.form-control:focus, .form-select:focus {
    background-color: #10141c;
    border-color: var(--accent);
    box-shadow: 0 0 0 .2rem rgba(124, 179, 255, .15);
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.kbd {
    padding: .15rem .35rem;
    border-radius: .35rem;
    background: #0f1218;
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: .75rem;
}

/* Opaque dropdown menus (remove transparency) */
.dropdown-menu.solid {
    background-color: #0f1218; /* opaque */
    border: 1px solid var(--border);
    backdrop-filter: none;
}

.dropdown-menu.solid .dropdown-item {
    color: var(--text);
}

.dropdown-menu.solid .dropdown-item:hover,
.dropdown-menu.solid .dropdown-item:focus {
    background-color: rgba(255, 255, 255, .06);
    color: var(--text);
}

.dropdown-menu.solid .dropdown-header,
.dropdown-menu.solid .dropdown-divider {
    border-color: var(--border);
    color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Desktop: pin sidebar; only <main> scrolls */
@media (min-width: 992px) {
    .app {
        height: 100vh; /* lock the grid to viewport */
        overflow: hidden; /* prevent page-level scroll */
    }

    .sidebar {
        position: sticky;
        top: var(--topbar-h); /* stick below the topbar */
        height: calc(100vh - var(--topbar-h));
        overflow-y: auto; /* its own scroll if needed */
    }

    .content {
        min-height: 0; /* allow overflow to work in CSS grid */
        overflow: auto; /* ONLY main scrolls */
        overscroll-behavior: contain; /* avoid scroll chaining */
    }
}


 #userLog {
     color: #f5f5f5;            /* light text */
     caret-color: #f5f5f5;      /* makes the cursor visible */
 }
#userLog::placeholder {
    color: #aaa;               /* placeholder slightly lighter */
}
#userLog:focus {
    border-color: #4a90e2;     /* optional: make focus visible */
    outline: none;
}