/* Buttons */
.btn {
    font-family: var(--font-sans);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s var(--bezier-smooth);
    font-size: 0.9rem;
    text-decoration: none;
    min-height: 48px;
    /* Touch targets and haptics for touch screens */
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-base);
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    color: var(--text-primary);
    border-color: var(--border-highlight);
    background: var(--bg-overlay);
}

.btn-tertiary {
    background: transparent;
    color: var(--text-secondary);
    border: none;
}

.btn-tertiary:hover {
    color: var(--text-primary);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
}

.btn:active {
    transform: scale(0.97);
    transition: transform 0.05s ease-out;
}