:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --bg-body: #f8fafc;
    --sidebar-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --card-shadow-hover: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
}

.navbar {
    background-color: #1e293b !important;
    box-shadow: var(--card-shadow);
    padding: 1rem 0;
}

.navbar-brand {
    letter-spacing: -0.025em;
    color: #fff !important;
}

.card {
    border: 1px solid #e2e8f0;
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0.75rem;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
}

.task-id {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.85rem;
    color: var(--text-muted);
}

pre {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 1.25rem;
    border-radius: 0.5rem;
    border: 1px solid #334155;
    font-size: 0.9rem;
    overflow-x: auto;
}

.badge {
    padding: 0.5em 0.75em;
    font-weight: 500;
    border-radius: 0.375rem;
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%) !important;
}

.badge-ai {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    text-decoration: underline;
}

.list-group-item-action:hover {
    background-color: #f1f5f9;
}

code {
    color: var(--accent-color);
    background-color: #f1f5f9;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
}

.form-control {
    border-radius: 0.5rem;
    padding: 0.625rem 0.75rem;
    border: 1px solid #e2e8f0;
    transition: all 0.2s;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

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

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

.task-hidden {
    background-color: #e2e8f0 !important; /* Slightly darker grey than bg-light */
    opacity: 0.85;
}