:root {
    --ca-blue-50: #eff6ff;
    --ca-blue-100: #dbeafe;
    --ca-blue-600: #2563eb;
    --ca-blue-700: #1d4ed8;
    --ca-blue-800: #1e40af;
    --ca-slate-50: #f8fafc;
    --ca-slate-100: #f1f5f9;
    --ca-slate-300: #cbd5e1;
    --ca-slate-600: #475569;
    --ca-slate-900: #0f172a;
    --ca-white: #ffffff;
    --ca-radius-sm: 0.75rem;
    --ca-radius-md: 1rem;
    --ca-radius-lg: 1.25rem;
}

.ca-shell {
    border: 1px solid var(--ca-blue-100);
    border-radius: var(--ca-radius-lg);
    background: var(--ca-white);
}

.ca-panel {
    border: 1px solid var(--ca-blue-100);
    border-radius: var(--ca-radius-lg);
    background: var(--ca-white);
}


.ca-muted {
    color: var(--ca-slate-600);
}

.ca-heading {
    letter-spacing: -0.02em;
}

.ca-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 999px;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid transparent;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.ca-btn-primary {
    background: var(--ca-blue-700);
    color: var(--ca-white);
}

.ca-btn-primary:hover {
    background: var(--ca-blue-800);
}

.ca-btn-secondary {
    background: var(--ca-white);
    border-color: var(--ca-blue-100);
    color: var(--ca-slate-900);
}

.ca-btn-secondary:hover {
    border-color: #93c5fd;
    color: var(--ca-blue-700);
}

.ca-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: 999px;
    border: 1px solid var(--ca-blue-100);
    background: var(--ca-blue-50);
    color: var(--ca-blue-800);
    padding: 0.35rem 0.65rem;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.ca-input {
    width: 100%;
    border: 1px solid var(--ca-slate-300);
    border-radius: var(--ca-radius-sm);
    background: var(--ca-white);
    color: var(--ca-slate-900);
    padding: 0.85rem 1rem;
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ca-input:focus {
    border-color: var(--ca-blue-700);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
    outline: none;
}

.ca-nav-link {
    color: var(--ca-slate-600);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.ca-nav-link:hover {
    color: var(--ca-blue-700);
}