[data-theme="light"] {
    --bs-body-bg: #F4F7F9;
    --bs-body-color: #1A1C1E;
    --bs-primary: #0d6efd;
    --bs-primary-rgb: 13, 110, 253;
    --bs-card-bg: #FFFFFF;
    --bs-border-color: rgba(0, 0, 0, 0.08);
    --iq-muted: #6c757d;
    --iq-topbar-bg: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] {
    --bs-body-bg: #0A0A0C;
    --bs-body-color: #F8F8F8;
    --bs-primary: #10b981;
    --bs-primary-rgb: 16, 185, 129;
    --bs-card-bg: #141414;
    --bs-border-color: rgba(255, 255, 255, 0.1);
    --iq-muted: #888888;
    --iq-topbar-bg: rgba(10, 10, 12, 0.9);
}

[data-theme="gentleman"] {
    --bs-body-bg: #1B1C17;
    --bs-body-color: #E8E6D9;
    --bs-primary: #E6D9A1;
    --bs-primary-rgb: 230, 217, 161;
    --bs-secondary: #4A4D42;
    --bs-card-bg: #22231D;
    --bs-border-color: rgba(230, 217, 161, 0.15);
    --iq-muted: rgba(232, 230, 217, 0.5);
    --iq-topbar-bg: rgba(27, 28, 23, 0.9);
}

body {
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
    padding-top: 76px;
}

h1, h2, h3, h4, h5, h6, .brand-font {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--bs-primary);
}

.mono-font {
    font-family: 'JetBrains Mono', monospace;
}

.card {
    border-radius: 16px;
    border: 1px solid var(--bs-border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.card:hover { border-color: var(--bs-primary); }

.btn { border-radius: 8px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; font-size: 0.85rem; }


.btn-primary {
    background-color: var(--bs-primary) !important;
    border-color: var(--bs-primary) !important;
    color: #111 !important;
    font-weight: 700;
}
[data-theme="light"] .btn-primary { color: #fff !important; }

.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
    background-color: var(--bs-primary) !important;
    border-color: var(--bs-primary) !important;
    filter: brightness(1.1);
    box-shadow: 0 0 15px rgba(var(--bs-primary-rgb), 0.3) !important;
}

.btn-outline-primary {
    color: var(--bs-primary) !important;
    border-color: var(--bs-primary) !important;
    background-color: transparent !important;
}

.btn-outline-primary:hover, .btn-outline-primary:focus, .btn-outline-primary:active,
.btn-check:checked + .btn-outline-primary {
    background-color: rgba(var(--bs-primary-rgb), 0.1) !important;
    color: var(--bs-primary) !important;
    border-color: var(--bs-primary) !important;
    box-shadow: none !important;
}

.text-muted { color: var(--iq-muted) !important; }

.iq-topbar {
    background-color: var(--iq-topbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--bs-border-color);
    height: 76px;
}

.nav-link { color: var(--bs-body-color); font-weight: 500; transition: 0.2s; }
.nav-link:hover, .nav-link.active { color: var(--bs-primary); }

.iq-mobile-menu {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: var(--iq-topbar-bg); backdrop-filter: blur(20px);
    z-index: 2000; display: flex; flex-direction: column; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: 0.4s ease;
}
.iq-mobile-menu.active { opacity: 1; pointer-events: auto; }
.iq-mobile-menu .nav-link { font-size: 2rem; font-family: 'Space Grotesk', sans-serif; margin-bottom: 1rem; }

.iq-sidebar {
    height: calc(100vh - 76px);
    position: sticky;
    top: 76px;
    border-right: 1px solid var(--bs-border-color);
    padding: 20px 10px;
    overflow-y: auto;
}
.iq-sidebar .list-group-item {
    background: transparent;
    border: none;
    color: var(--bs-body-color);
    border-radius: 8px;
    margin-bottom: 5px;
    transition: 0.2s;
}
.iq-sidebar .list-group-item:hover, .iq-sidebar .list-group-item.active {
    background: rgba(var(--bs-primary-rgb), 0.1);
    color: var(--bs-primary);
}

.iq-footer-link {
    color: var(--iq-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}
.iq-footer-link:hover {
    color: var(--bs-primary);
}

.accordion-button:not(.collapsed) {
    color: var(--bs-primary) !important;
    background-color: rgba(var(--bs-primary-rgb), 0.05) !important;
    box-shadow: none !important;
}

.accordion-button:focus {
    border-color: var(--bs-primary) !important;
    box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.1) !important;
    outline: none !important;
}


.accordion-button::after {
    background-image: none !important;
    content: "\f282";
    font-family: "bootstrap-icons";
    font-size: 1.2rem;
    color: var(--iq-muted);
    text-align: center;
    line-height: 1;
    transition: transform 0.3s ease;
}

.accordion-button:not(.collapsed)::after {
    transform: rotate(-180deg);
    color: var(--bs-primary);
}

.accordion-item {
    border-color: var(--bs-border-color) !important;
}

.iq-logo {
    height: 32px;
    width: auto;
    transition: height 0.2s ease;
}

@media (max-width: 575.98px) {
    .iq-logo {
        height: 22px;
    }
    .iq-topbar .btn {
        padding-left: 0.4rem !important;
        padding-right: 0.4rem !important;
    }
}