:root {
    --bg-color: #050505;
    --card-bg: #0f0f0f;
    --border-color: #222222;
    --accent-color: #00f2ff;
    --text-main: #e0e0e0;
    --text-muted: #9aa0a6;
    --input-bg: rgba(255, 255, 255, 0.05);
    --header-bg: rgba(5, 5, 5, 0.8);
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --card-bg: #f8f9fa;
    --border-color: #dee2e6;
    --accent-color: #007bff;
    --text-main: #212529;
    --text-muted: #6c757d;
    --input-bg: rgba(0, 0, 0, 0.02);
    --header-bg: rgba(255, 255, 255, 0.8);
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    transition: 0.3s;
}

.hub-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--header-bg);
}

.nav-link {
    color: var(--text-main);
    font-family: 'JetBrains Mono';
    font-size: 0.9rem;
    transition: 0.3s;
}

.nav-link:hover {
    color: var(--accent-color);
}

.text-info {
    color: var(--accent-color) !important;
}

.bg-card,
.bg-card-custom {
    background: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
}

.btn-outline-info {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-outline-info:hover {
    background-color: var(--accent-color);
    color: #fff;
}

.form-control {
    background-color: var(--input-bg) !important;
    color: var(--text-main) !important;
    border-color: var(--border-color) !important;
}

.form-control::placeholder {
    opacity: 0.5;
    color: var(--text-main);
}

.theme-switch-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-switch {
    display: inline-block;
    height: 20px;
    position: relative;
    width: 40px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: #333;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    border-radius: 0;
    border: 1px solid var(--border-color);
}

.slider:before {
    background-color: var(--accent-color);
    bottom: 3px;
    content: "";
    height: 12px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 12px;
    border-radius: 0;
}

input:checked + .slider {
    background-color: #ccc;
}

input:checked + .slider:before {
    transform: translateX(18px);
}

.mode-label {
    font-family: 'JetBrains Mono';
    font-size: 0.7rem;
    color: var(--accent-color);
}

.main-shell {
    min-height: calc(100vh - 180px);
}

.site-footer {
    border-top: 1px solid var(--border-color);
    opacity: 0.75;
}